Search | Preprints.org

Preprint ARTICLE | doi:10.20944/preprints202009.0069.v1

Fires Monitoring by Means of Spectral Indices from Sentinel-2 Data: the Case Study of the Vesuvius and Lattari Mountains, Campania (Italy)

Domenico Antonio Giuseppe Dell'Aglio, Carmine Gambardella, Massimiliano Gargiulo, Antonio Iodice, Rosaria Parente, Daniele Riccio, Giuseppe Ruello

Subject: Engineering, Automotive Engineering Keywords: fire monitoring; Sentinel-2; time series; Italy wildfires; active fire detection; pre-fire analysis; burned area mapping

Online: 3 September 2020 (15:40:36 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202007.0456.v1

Winter is Coming: A Southern Hemisphere Perspective of the Environmental Drivers of SARS-CoV-2 and the Potential Seasonality of COVID-19

Albertus Smit, Jennifer Fitchett, Francois Engelbrecht, Robert Scholes, Godfrey Dzhivhuho, Neville Sweijd

Subject: Medicine And Pharmacology, Epidemiology And Infectious Diseases Keywords: COVID-19; environmental influences; humidity; SARS-CoV-2; seasonality; temperature

Online: 20 July 2020 (07:41:44 CEST)

Show abstract| Download PDF| Supplementary Files| Share

SARS-CoV-2 virus infections in humans were first reported in December 2019, the boreal winter. The resulting COVID-19 pandemic was declared by the WHO in March 2020. By July 2020 COVID-19 is present in 213 countries and territories, with over 12 million confirmed cases and over half a million attributed deaths. Knowledge of other viral respiratory diseases suggests that the transmission of SARS-CoV-2 could be modulated by seasonally-varying environmental factors such as temperature and humidity. Many studies on the environmental sensitivity of COVID-19 are appearing online, and some have been published in peer-reviewed journals. Initially, these studies raised the hypothesis that climatic conditions would subdue the viral transmission rate in places entering the boreal summer and that southern hemisphere countries would experience enhanced disease. For the latter, the COVID-19 peak would coincide with the peak of the influenza season, increasing misdiagnosis and placing an additional burden on health systems. In this review, we assess the evidence that environmental drivers are a significant factor in the trajectory of the COVID-19 pandemic, globally and regionally. We critically assessed 42 peer-reviewed and 80 preprint publications that met qualifying criteria. Since the disease has been prevalent for only half a year in the northern, and a quarter of a year in the southern hemisphere, datasets capturing a full seasonal cycle in one locality are not yet available. Analyses based on space-for-time substitutions, i.e. using data from climatically distinct locations as a surrogate for seasonal progression, have been inconclusive. The reported studies present a strong northern bias. Socio-economic conditions peculiar to the ‘Global South’ have been omitted as confounding variables, thereby weakening evidence of environmental signals. We explore why research to date has failed to show convincing evidence for environmental modulation of COVID-19, and discuss directions for future research. We conclude that the evidence thus far suggests a weak modulation effect, currently overwhelmed by the scale and rate of the spread of COVID-19. Seasonally-modulated transmission, if it exists, will be more evident in 2021 and subsequent years.

Working Paper ARTICLE

Application of Tensor Decomposition to Gene Expression of Infection of Mouse Hepatitis Virus can Identify Critical Human Genes and Efffective Drugs for SARS-CoV-2 Infection

Y-H. Taguchi, Turki Turki

Subject: Biology And Life Sciences, Anatomy And Physiology Keywords: COVID-19; SARS-CoV-2; in silico drug discovery; gene expression profile; tensor decomposition; feature extraction

Online: 8 December 2020 (10:17:05 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202005.0407.v1

The SARS-CoV-2 Spike Protein D614G Mutation Shows Increasing Dominance and May Confer a Structural Advantage to the Furin Cleavage Domain

Leyan Tang, Allison Schulkins, Chun-Nan Chen, Kurt Deshayes, John S. Kenney

Subject: Biology And Life Sciences, Virology Keywords: SARS-CoV-2; spike protein; D614G mutation; genotype distribution; furin cleavage site; secondary structure; sequence analysis; homology modeling

Online: 24 May 2020 (20:31:16 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202005.0397.v1

Genetic Uniformity of a Specific Region in SARS-CoV-2 Genome and In-Silico Target-Oriented Repurposing of N-Acetyl-D-Glucosamine

Omur Baysal, Ragip Soner Silme, Cagatay Karaaslan

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: SARS-CoV-2; Drug repurposing; N-acetyl-D-glucosamine; ORF1ab; Biodata mining; Protein modelling

Online: 24 May 2020 (18:49:41 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202005.0301.v1

Nicotinic Cholinergic System and COVID-19: Identification of a Potentially Crucial Snake Toxin-Like Sequence in the SARS-CoV-2 Spike Glycoprotein

Konstantinos Farsalinos, Elias Eliopoulos, Socrates Tzartos, Konstantinos Poulas

Subject: Medicine And Pharmacology, Pulmonary And Respiratory Medicine Keywords: COVID-19; SARS-CoV-2; smoking; nicotine; nicotinic cholinergic system; inflammation

Online: 18 May 2020 (11:51:44 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202005.0299.v1

A First Review to Explore the Association of Air Pollution (PM and NO₂) on Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2)

Chiara Copat, Antonio Cristaldi, Maria Fiore, Alfina Grasso, Pietro Zuccarello, Gea Oliveri Conti, Salvatore Santo Signorelli, Margherita Ferrante

Subject: Medicine And Pharmacology, Epidemiology And Infectious Diseases Keywords: air pollution; particulate matter; nitrogen dioxide; COVID-19; pandemic

Online: 18 May 2020 (09:36:25 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202003.0348.v1

An Update on SARS-COV-2/COVID-19 with Particular Reference on Its Clinical Pathology, Pathogenesis, Immunopathology and Mitigation Strategies – A Review

Kuldeep Dhama, Shailesh Kumar Patel, Mamta Pathak, Mohd. Iqbal Yatoo, Ruchi Tiwari, Yashpal Singh Malik, Rajendra Singh, Ranjit Sah, Ali A. Rabaan, D. Katterine Bonilla-Aldana, Alfonso J. Rodriguez-Morales

Subject: Medicine And Pharmacology, Epidemiology And Infectious Diseases Keywords: SARS-COV-2; COVID-19; clinical pathology; pathogenesis; immunopathology

Online: 23 March 2020 (07:51:17 CET)

Show abstract| Download PDF| Share

Coronavirus Disease 2019 (COVID-19), caused by a novel coronavirus named Severe Acute Respiratory Syndrome - Coronavirus-2 (SARS-CoV-2), emerged in early December 2019 in China and attained a pandemic situation worldwide by its rapid spread to nearly 167 countries with 287.239 confirmed cases and 11.921 human deaths with a case fatality rate (CFR) of around 4 per cent. Bats were considered as the reservoir host, and the search of a probable intermediate host is still going on. Animals have anticipated culprit of SARS-CoV-2 as of now. The disease is mainly manifested by pneumonia and related respiratory signs and symptoms, but the involvement of the gastrointestinal system and nervous system is also suggested. The severe form of the disease associated with death is mainly reported in older and immune-compromised patients with pre-existing disease history. Death in severe cases is attributed to respiratory failure associated with hyperinflammation. Cytokine storm syndrome associated with rampant inflammation in response to SARS-CoV-2 infection is considered as the leading killer of COVID-19 patients. COVID-19 patients were reported with higher levels of many pro-inflammatory cytokines and chemokines like IFN-g, IL-1b, IP-10, and MCP-1. Furthermore, severe cases of COVID-19 revealed higher levels of TNF-α, G-CSF, and MIP-1A. Blood profile of the COVID-19 patients exhibits lymphopenia, leucopenia, thrombocytopenia and RNAaemia along with increased levels of aspartate aminotransferase. SARS-CoV-2 infection in pregnant women does not lead to fetus mortalities unlike other zoonotic coronaviruses like SARS-CoV and MERS-CoV, with no evidence of intrauterine transmission to neonates. Rapid and confirmatory diagnostics have been developed, and high efforts are being made to develop effective vaccines and therapeutics. In the absence of any virus-specific therapeutic, internationally health care authorities are recommending adoption of effective prevention and control measures to counter and contain this pandemic virus. This paper is an overview of this virus and the disease with a particular focus on SARS-COV-2 / COVID-19 clinical pathology, pathogenesis and immunopathology along with a few recent research developments.

Working Paper REVIEW

A New Perspective of Genetic Associations to the Cause of Multiple Sclerosis: The Role of Genes Expressed on Chromosomes 2 and 5

Robin Terese Montesano

Subject: Medicine And Pharmacology, Psychiatry And Mental Health Keywords: multiple sclerosis; MS; cause; genes; polygenic; heredity; autoimmune; diet; depression; fatigue; suicide; seizures; bowel disorders; thyroid; mitochondria; chromosome 2; chromosome 5; glial cells; sunlight; vitamin D3; ultraviolet radiation; melanocyte stimulating hormone; melanocyte concentrating hormone; stress

Online: 22 July 2019 (04:37:27 CEST)

Show abstract| Download PDF| Share

The literature on the causation of multiple sclerosis (MS), both genetic and environmental, extends over hundreds of years, with no firm conclusions on the exact role of autoimmunity and lifestyle. The epidemiology of MS was the basis for this review, but with a new, extensive examination of genes pertaining to each disorder, and disease of first, and second, degree relatives of those with MS. The author’s motivation was to discover some relationship between MS, and notable familial conditions, as the heredity of MS is concluded to be 30%, and the disorders had a chronic and/or idiopathic nature. This investigation hoped to further understand the randomness of MS- who acquires it, and what symptoms develop- after the author’s decades of observing several incidences of multiple members developing MS in a single family. Online databases for the human genome were used to link genes to MS, and symptoms, including excessive depression, fatigue and suicide rates, in coordination with linking genes for specific familial conditions including seizures, stroke, mental illness, bowel disorders, and thyroid conditions. Interesting associations were found, notably a cluster of Th2 cytokines, known to cure the animal model of MS, important receptors for neurotransmitters and hormones, a gene specific to Epstein Barr Virus, and potential genes for mitochondrial dysfunction. The results surprised the author, showing polygenic regions of chromosome 2 and 5, especially a cluster at loci 5q31-q33, may be dysregulated. The conclusion agrees with past hypotheses MS results not from a single gene, but from various genes, including those expressed in glial cells. The individual theories to the causation of MS, starting with Charcot may be explained by multiple pathways converging into a single disease outcome. In coordination with a sunlight factor, chromosome 2 appears to mediate the immune system, and inflammation, through ultraviolet radiation producing vitamin D3 in the skin, but additionally through peptides formed in the melanocyte stimulating and concentrating hormone class. The impact of stress in MS could be primary, given the loci of several stress-related and stress-modulated genes on these chromosomes, and calls for more appreciation of, and greater care for, the MS patients’ state of mind.

Preprint ARTICLE | doi:10.20944/preprints201805.0106.v1

The Diagnostic Value of HIF-2 Alpha to Determine The Development and Efficacy of Treatment for Contrast Induced Nephropathy: An Experimental Study

Ismail Altintop, Mehmet Tatli, Cigdem Karakukcu, Zeynep Soyer Sarica, Arzu Hanım Yay, Esra Balcioglu, Ahmet Ozturk

Subject: Medicine And Pharmacology, Pharmacy Keywords: contrast-induced nephropathy; hypoxia-inducible factor 2α; N-acetyl-cysteine; sildenafil

Online: 7 May 2018 (08:15:36 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201803.0200.v1

Characterization of Porous Phosphate Coatings Created on CP Titanium Grade 2 Enriched with Calcium, Magnesium, Zinc and Copper by Plasma Electrolytic Oxidation

Krzysztof Rokosz, Tadeusz Hryniewicz, Steinar Raaen, Sofia Gaiaschi, Patrick Chapon, Winfried Malorny, Dalibor Matýsek, Łukasz Dudek, Kornel Pietrzak

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: Plasma Electrolytic Oxidation (PEO); Micro Arc Oxidation (MAO); Titanium

Online: 23 March 2018 (15:16:33 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202410.0060.v1

Innovative Matrix-Based Assessment of Non-Conventional Water Processes: A Strategic Approach for SustainableWater Management in Arid Environments

Johannes Wellmann, Juliette Bühler, Norman Schweimanns, Sven-Uwe Geißen, Madher Bdour, Mohammad Al-Addous

Subject: Water Science And Technology, Environmental And Earth Sciences Keywords: non-conventional water technologies; arid regions; sustainable water management; matrix-based assessment; technology evaluation

Online: 2 October 2024 (07:51:16 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202404.1374.v1

Compact Solar-Powered Plasma Water Generator: Enhanced On-Site Aged Seed Germination with the Corona Dielectric Barrier Discharger

Yiting Xiao, Yang Tian, Haizheng Xiong, Ainong Shi, Jun Zhu

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: non-thermal plasma; reactor design; seed germination; plant growth

Online: 22 April 2024 (16:25:05 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202404.0428.v1

Estimation Method of Chlorophyll Concentration Distribution Based on UAV Aerial Images considering Turbid Water Distribution in a Reservoir

Mitsuteru Irie, Yugen Manabe, Masafumi Yamashita

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Algae; Chlorophyll-a; Turbidity; Reservoir; Machine learning; UAV; Insolation

Online: 5 April 2024 (10:10:23 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202309.1770.v1

Ecological Risks Arising for the Regional Water Resources in Inner Mongolia due to a Large-scale Afforestation Project

Peng Chen, Rong Ma, Jiansheng Shi, Letian Si, Lefan Zhao, Jun Wu

Subject: Environmental And Earth Sciences, Other Keywords: Afforestation; Water resource; Ecological risk; Inner Mongolia

Online: 26 September 2023 (10:21:54 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202309.1319.v1

Thermal Profiles in Water InjectionWells: Reduction of the Systematic Error in the Flow Measurement during the Transient Regime

German Alberto Echaiz Espinoza, Gabriel Pereira de Oliveira, Verivan Santos Lima, Diego Antonio de Moura Fonseca, Werbet Luiz Almeida da Silva, Carla Wilza Souza de Paula Maitelli, Elmer Rolando Llanos Villarreal, Andrés Ortiz Salazar

Subject: Engineering, Electrical And Electronic Engineering Keywords: oil reservoir; thermal profile; geothermal profile; flow rate injection

Online: 20 September 2023 (05:01:48 CEST)

Show abstract| Download PDF| Share

Preprint TECHNICAL NOTE | doi:10.20944/preprints202308.1586.v1

Enhancing Water Depth Estimation from Satellite Imagery using Online Machine Learning: A Case Study using Baidu Easy-DL

Zhongqiang Wu, Zhihua Mao, Haixia Yang, Wei Shen

Subject: Environmental And Earth Sciences, Oceanography Keywords: Big Model; Machine learning; Baidu Easy-DL; Water depth; Satellite-based Bathymetry

Online: 23 August 2023 (07:50:15 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.1440.v1

Ratio of Extracellular to Intracellular Water is Associated with Permanent Catheter Patency Survival in Patients Receiving Maintenance Hemodialysis

Moo Jun Kim, Jae-Wan Jeon, Hae-Ri Kim, Hyerim Park, Suyeon Han, Yunkyeong Hwang, Heewon Park, Kyungho Park, Eu-Jin Lee, Young-rok Ham, Ki Ryang Na, Kang-Wook Lee, Dae Eun Choi

Subject: Medicine And Pharmacology, Urology And Nephrology Keywords: body composition monitoring; extracellular water; intracellular water; hemodialysis; permanent catheter; catheter patency; infection; malfunction

Online: 20 June 2023 (12:20:54 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0791.v1

Introducing a High Throughput Nanozymatic Method for Green Nanozyme-Mediated Degradation of Organic Dyes in Real Water Media

Saeed Reza Hormozi Jangi

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: nanozyme-mediated dye degradation; organic dye; nanozyme; methylene blue; real water media

Online: 12 June 2023 (07:38:56 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202306.0534.v1

Estimation of Cooling Rate of High-Strength Thick Plate Steel during Water Quenching Based on a Dilatometric Experiment

Hyo-Haeng Jo, Kyeong-Won Kim, Hyungkwon Park, Joonoh Moon, Young-Woo Kim, Hyun-Bo Shim, Chang-Hoon Lee

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: thick plate steel; water quenching; cooling rate; microstructure; hardness; dilatometry

Online: 7 June 2023 (10:29:09 CEST)

Show abstract| Download PDF| Share

The microstructure and hardness along the thickness direction of a water quenched, high-strength thick plate with a thickness of 40 mm were investigated with three specimens from the thick plate: surface, 1/4t, and 1/2t (center) thickness, and the phase transformation behavior of the thick plate according to the cooling rate was analyzed through dilatometric experiments. Finally, the cooling rate for each thickness of the thick plate was estimated by comparing the microstructure and hardness of the thick plate along the thickness with those of the dilatometric specimens. Martensite microstructure was observed on the surface of the water quenched thick plate due to the fast cooling rate. On the other hand, an inhomogeneous microstructure was transformed inside the thick plate due to the relatively slow cooling rate and central segregation of Mn. A small fraction of bainite was shown at 1/4t thickness. A banded microstructure with martensite and bainite resulting from Mn segregation was developed at 1/2t; that is, the full martensite microstructure was transformed in the Mn-enriched area even at a slow cooling rate due to high hardenability, but a bainite microstructure was formed in the Mn-depleted area owing to relatively low hardenability. A portion of martensite with fine cementite at the surface and 1/4t was identified as auto-tempered martensite with a Bagaryatskii orientation relationship between the ferrite matrix and cementite. The microstructure and hardness as well as dilatation were investigated at various cooling rates through a dilatometric experiment, and a continuous cooling transformation (CCT) diagram was finally presented for the thick plate. Comparing the microstructure and hardness at the surface, 1/4t, and 1/2t of the thick plate with those of dilatometric specimens cooled at various cooling rates, it was estimated that the surface of the thick plate was cooled at more than 20 oC/s, whereas the 1/4t region was cooled at approximately 5 ~ 10 oC/s during water quenching.

Preprint ARTICLE | doi:10.20944/preprints202304.0462.v1

Cellulose Acetate-Supported Copper as an Efficient Sustainable Heterogenous Catalyst for Azide-Alkyne Cycloaddition Click Reactions in Water

Salah-Eddine Stiriba, Lahoucine Bahsis, Elhouceine Benhadria, Khaoula Oudghiri, Moha Taourirte, Miguel Julve

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: cellulose acetate; biopolymers; catalyst immobilization; CuAAC; 1,2,3-Triazoles

Online: 18 April 2023 (03:10:39 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202206.0173.v1

Estimation of Water Resources Ecological Service System Value in Tarim River Basin -- From a Full Value Chain Perspective

Quan Lu, Duo Hua, Yanjun Li, Dezhen Wang

Subject: Business, Economics And Management, Economics Keywords: Tarim river; ecological service function value; river ecosystem; evaluation indicators

Online: 13 June 2022 (09:33:56 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202204.0293.v1

Application of Two Field Methods for Monitoring Microbiological Water Quality in a Polluted Tropical Environment - A Pilot Study

Fabian Taube, Folke Cerenius, Karl Kristian Faksvåg, Hillary Limo, Amir Khorram-Manesh

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: Austere; Healthcare; Microbiological; Military; Safety; Water

Online: 29 April 2022 (08:23:45 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202110.0381.v1

Impacts of Human Interventions on Water Quality of Upper Ganga River Near Haridwar, Uttarakhand: A GIS-Based Analysis

Pradip Kumar Maurya, Sk Ajim Ali, Ateeque Ahmad Ahmad, Krishna Kumar Maurya

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: Physico-chemical parameters; water quality index; land use land cover; GIS integration; special correlation

Online: 26 October 2021 (12:24:29 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202109.0293.v1

Minimizing Errors in the Prediction of Water Levels Using Kriging Technique in Residuals of the Groundwater Model (MODFLOW)

Alireza Asadi, Kushal Adhikari

Subject: Engineering, Civil Engineering Keywords: groundwater monitoring; modeling; MODFLOW; kriging; residuals; water levels; Edwards-Trinity aquifer

Online: 16 September 2021 (16:02:25 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202105.0214.v1

Reducing Bottled Water Use among Adolescents: A Factorial Experimental Approach to Testing the Components of the “Aquatic” Program

Inga Truskauskaitė-Kunevičienė, Goda Kaniušonytė, Mykolas Simas Poškus, Audra Balundė, Vaida Gabė, Lina Jovarauskaite, Metin Özdemir

Subject: Business, Economics And Management, Accounting And Taxation Keywords: pro-environmental behavior; factorial experiment; adolescence; intervention

Online: 10 May 2021 (15:27:23 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202103.0538.v1

Remote Sensing Observations of Dominant Breaking Waves in Intermediate to Deep Water from a Lighthouse During Storm Conditions

Caio Eadi Stringari, Jean-François Filipot, Fabien Leckler, Rui Duarte

Subject: Environmental And Earth Sciences, Oceanography Keywords: wave breaking; remote sensing; intermediate water waves, dominant waves; plunging waves; rogue waves; machine learning.

Online: 22 March 2021 (13:53:53 CET)

Show abstract| Download PDF| Share

Working Paper ARTICLE

Hydrodynamic Forces Exerted on an Oscillating Cylinder at Its Translational Motion in Water Covered by a Compressed Ice

Yury Stepanyants, Izolda Sturova

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Ideal fluid; deep water; ice cover; moving cylinder; hydrodynamic load; added mass; wave resistance; damping coefficient

Online: 21 January 2021 (15:21:49 CET)

Show abstract| Download PDF| Share

Preprint BRIEF REPORT | doi:10.20944/preprints202006.0357.v1

Controlling Water Hyacinth Infestation in Lake Tana Using Fungal Pathogen. In Case of Gondar Zuria Wereda, Lemeba Kebela

Adugnaw Admas, Smegnew Melese, Amare Genetu

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Fungi; Eichhornia crassipes; Temprature; Humidity

Online: 30 June 2020 (08:04:57 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202005.0344.v1

Morphological Study of Zinc-Oxide Nanorods Grown by Hot Water Treatment Suitable for Solar Cells Conversion Efficiency Enhancement

Mohammad Khairul Basher, S. M. Shah Riyadh, Md. Khalid Hossain, Mahmudul Hassan, Md. Abdur Rafiq Akand, S. M. Amir Al-Zumahi, Md. Abdul Matin, Mohammad Nur-E-Alam, Narottam Das

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: conversion efficiency; energy harvesting or generation; hot water treatment; nanorods; solar cells; surface etching; surface morphology

Online: 21 May 2020 (10:08:55 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201908.0205.v2

Simulation the Probability of Liberalizing Chlorin Gas from Urban Water Chlorination System in Alborz: With the Cancer Approach

Reza Moradi, Ahmad Nikpey, Hamzeh Saeedabadi, Saeed Yari

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: Chlorine Gas Leakage, ALOHA, WISER, CCP, Cancer

Online: 23 August 2019 (11:00:14 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201903.0106.v1

An Experimental Study for the Remediation of Industrial Waste Water Using Combination of Low Cost Mineral Raw Materials

Petros Petrounias, Aikaterini Rogkala, Panagiota P. Giannakopoulou, Basilios Tsikouras, Paraskevi Lampropoulou, Stavros Kalaitzidis, Konstantin Hatzipanagiotou, Nicolaos Lambrakis, Marina A. Christopoulou

Subject: Physical Sciences, Chemical Physics Keywords: sterile aggregates; remediation of waste water; peat; biochar

Online: 8 March 2019 (08:57:21 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201809.0598.v1

A Smart Irrigation Tool to Determine the Effects of ENSO on Water Requirements for Tomato Production in Mozambique

Eduardo Gelcer, Clyde W. Fraisse, Lincoln Zotarelli, Daniel Perondi, Hipólito A. Malia, Carvalho C. Ecole, Kati W. Migliaccio

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: irrigation scheduling; Solanum lycopersicum; El Niño; water stress; decision support system; climate variability

Online: 30 September 2018 (05:48:20 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201808.0445.v1

Sunlight Assisted Photocatalytic Degradation of Ciprofloxacin in Water Using Fe Doped ZnO Nanoparticles for Potential Public Health Applications

Sourav Das, Soumen Ghosh, Ananyo Jyoti Misra, Amrita Mishra, Ashok J. Tamhankar, Cecilia Stålsby Lundborg, Suraj K. Tripathy

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: antibiotic residues; aquatic environment; ciprofloxacin; Fe doped ZnO nanoparticles; photocatalysis; sunlight

Online: 27 August 2018 (09:01:34 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202409.1995.v1

Modeling and Simulation of a Hydro Generator Stator Bar

Yujia Cheng, Guang Yu

Subject: Engineering, Electrical And Electronic Engineering Keywords: Motor insulation; Large-scale hydro generator; Electric field distribution; Corona structure simulation

Online: 25 September 2024 (17:58:13 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202406.1672.v1

On Certain Rough Marcinkiewicz Integral Operators with Grafakos-Stefanov Kernels on Product Spaces

Hussain Al-Qassem, Mohammed Ali

Subject: Computer Science And Mathematics, Analysis Keywords: Lp bound; rough Marcinkiewiz integrals; surfaces of revolution; product domains; Grafakos-Stefanov class

Online: 24 June 2024 (12:04:06 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202406.0339.v1

Analysing Temporal Evolution of OpenStreetMap Waterways Completeness in a Mountain Region of Portugal

Elisabete Monteiro, Glória Patrício

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: completeness; waterway; VGI; OpenStreetMap

Online: 6 June 2024 (07:20:51 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202405.1823.v1

FCM-DETR: An Efficient End-to-End Fire Smoke and Human Detection based on Deformable DETR

Tianyu Liang, Guigen Zeng

Subject: Computer Science And Mathematics, Computer Vision And Graphics Keywords: fire smoke and human detection; Deformable-DETR; Mixed encoder; PIoUV2; ConvNeXt

Online: 28 May 2024 (06:49:46 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202404.1222.v1

Disentangling the Physiological Responses of Sweet Orange Citrus Trees to Optimize the Design of Deficit Irrigation Strategies

Alfredo Emilio Rubio-Casal, Victor Hugo Durán-Zuazo, Iván Francisco García-Tejero

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: Chlorophyll fluorescence; thermography; crop physiology; drought stress

Online: 18 April 2024 (13:38:06 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201702.0057.v2

Global Existence, Asymptotic Behavior and Blow-up of Solutions for a Suspension Bridge Equation with Nonlinear Damping and Source Terms

Wenjun Liu, Hefeng Zhuang

Subject: Computer Science And Mathematics, Analysis Keywords: suspension bridges; fourth order wave equation; nonlinear damping; source term; existence; blow up

Online: 24 February 2017 (09:06:57 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201611.0010.v1

Attenuation Correction for Ka-band Cloud Radar Using X-band Weather Radar Data

Peng Zhang, Yunjie Chen

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: millimeter-wavelength cloud radar; attenuation correction; dual-radar; data fusion

Online: 1 November 2016 (10:05:18 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202407.0512.v1

Evidence On Viral Suppression Supports Scaling-Up Transition To Dolutegravir-Based Regimens In Pediatric Populations In Cameroon: A Multicentre Baseline Assessment For The Cipher-Adola Study

Joseph FOKAM, Yagai Bouba, Rogers Awoh Ajeh, Dominik Tameza Guebiapsi, Suzane Essamba, Albert Franck Zeh Meka, Ebiama Lifanda, Rose Armelle Ada, Yakouba Liman, Nancy Barbara Mbengono, Audrey Raissa Dzaddi Djomo, Suzie Ndiang Tetang, Samuel Martin Sosso, Jocelyne Carmen Babodo, Olivia Francette Ndomo Ambomo, Edith Michele Temgoua, Caroline Medouane, Sabine Ndejo Atsinkou, Justin Leonel Mvogo, Roger Martin Onana, Jean de Dieu Anoubissi, Alice Ketchaji, Alex Durand Nka, Davy-Hyacinthe Anguechia Gouissi, Aude Christelle Ka’e, Nadine Nguendjoung Fainguem, Rachel Simo Kamgaing, Désiré Augustin Komego Takou, Michel Carlos Tommo Tchouaket, Ezechiel Ngoufack Jagni Semengue, Marie Atsama Amougou, Julius Nwobegahay, Comfort Vuchas, Anna Nya Nsimen, Bertrand Bille Eyoum, Sandra kenmegne Gatchuessi, Francis Ndongo Ateba, Daniel Kesseng, Serge Clotaire Billong, Daniele Armenia, Maria Mercedes Santoro, Francesca Ceccherini-Silberstein, Paul Ndombo Koki, Hadja Cherif Hamsatou, Vittorio Colizzi, Alexis Ndjolo, Carlo Federico Perno, Anne-Cécile Zoung-Kanyi Bissek

Subject: Medicine And Pharmacology, Medicine And Pharmacology Keywords: Virological suppression; low level viremia; children, adolescents, and young-adults; DTG-based regimen; elimination of paediatric AIDS; Cameroon.

Online: 5 July 2024 (12:31:56 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202312.1097.v1

Characterizing Dissolved Organic Matter and Water-Soluble Compounds in Ground Ice of the Russian Arctic: A Focus on Sample Classification within the Carbon Cycle Context

Petr Semenov, Anfisa Pismeniuk, Anna Kil, Elizaveta Shatrova, Natalia Belova, Petr Gromov, Sergei Malyshev, Wei He, Anastasiia Lodochnikova, Ilya Tarasevich, Irina Streletskaya, Marina Leibman

Subject: Environmental And Earth Sciences, Other Keywords: ground ice, dissolved organic matter, excitation-emission matrix fluorimetry, biogeochemical cycling, greenhouse gas emission

Online: 14 December 2023 (11:29:10 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202310.0077.v1

Evaluation of the Water Consumption and the Productive Pa-Rameters on a Table Grapevine Cultivar Grafted onto Two Root-Stocks, in the Climate Change Context

Antonio Dattola, Vincenzo Vonella, Olivadese Tommaso, Francesco Pullia, Rocco Zappia, Gregorio Antonio Maria Gullo

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: drought, phenology, quality, sap flow, viticulture

Online: 2 October 2023 (16:49:24 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202104.0195.v1

Relationship between Measured Aerobic Capacity and Total Energy Expenditure Obtained by Doubly Labeled Water in Community-Dwelling Healthy Adults Aged 81-94y: A Preliminary Study

Jun Yasukata, Yosuke Yamada, Hiroyuki Sagayama, Yasuki Higaki, Hiroaki Tanaka

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: doubly labeled water; total energy expenditure; physical activity level; lactate threshold, physical fitness; International Physical Activity Questionnaire

Online: 7 April 2021 (11:32:02 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202409.0232.v1

Characterization of Qu-aroma of Medium-High Temperature Daqu from Different Production Areas Using Sensory Evaluation, E-nose, and GC-MS/O Analysis

Jie Deng, Jia Zheng, Xing Li, Zhiguo Huang, Dan Huang, Guangbin Ye, Huibo Luo

Subject: Biology And Life Sciences, Food Science And Technology Keywords: Medium-High Temperature Daqu; Qu-aroma; Volatile compounds

Online: 4 September 2024 (03:08:27 CEST)

Show abstract| Download PDF| Share

BACKGROUND: Qu-aroma is a critical quality indicator for medium-high temperature Daqu (MT-Daqu), significantly influencing the aroma profile of strong-aroma Baijiu (SAB). SAB is produced across various regions in China, each with unique environmental conditions and production techniques. These regional differences are likely to cause variations in the Qu-aroma of MT-Daqu. Despite this, comprehensive research on the variations in Qu-aroma across different regions has been lacking. This study aims to address this gap by utilizing Gas Chromatography-Olfactometry-Mass Spectrometry (GC-O-MS) and electronic nose (E-nose) technology, combined with sensory evaluation, to analyze the differences in Qu-aroma characteristics and volatile compound profiles of MT-Daqu from seven distinct production areas.RESULTS: Sensory analysis identified seven broad aroma categories and 25 specific aromas characterizing the Qu-aroma of MT-Daqu samples. Chen aroma and roasted aroma were notably more prevalent in MT-Daqu samples from Sichuan compared to those from other regions (P < 0.05), while the fermentation aroma was less prominent in Sichuan samples. In total, 123 volatile compounds were detected in MT-Daqu, with 46 classified as aroma-active compounds. Among these, 21 aroma-active compounds were identified as markers distinguishing Sichuan MT-Daqu from those produced in non-Sichuan regions, showing significant differences in their concentrations (P < 0.05). Additionally, six major aroma-active compounds-ethyl isovalerate, ethyl heptanoate, hexanal, 1-nonanal, (E)-2,4-decadienal, and 2,3-dimethyl-5-ethylpyrazine-were found to significantly contribute to the aroma differences between Sichuan and non-Sichuan MT-Daqu.CONCLUSION: This study delineates the distinct Qu-aroma characteristics of MT-Daqu from various SAB production areas and identifies the aroma-active compounds responsible for these differences. The insights gained from this research offer valuable guidance for optimizing flavor profiles in MT-Daqu production, potentially enhancing the overall quality and regional distinctiveness of the product.

Preprint ARTICLE | doi:10.20944/preprints202409.0012.v1

Optimization of Acid-Producing Culture Medium for Collaborative Fermentation of Three Pit Mud Anaerobic Functional Bacteria

Chunhui Wei, Yilian Tu, Jun Xie, Zhi Huang

Subject: Biology And Life Sciences, Food Science And Technology Keywords: pit mud; anaerobic bacteria; caproic acid; butyric acid; optimization

Online: 2 September 2024 (13:31:19 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202408.1236.v1

Comparative Analysis of Dietary Habits and Obesity Prediction: Body Mass Index versus Body Fat Percentage Classification using Bioelectrical Impedance Analysis

Denisa Pescari, Monica Simina Mihuta, Andreea Bena, Dana Stoian

Subject: Public Health And Healthcare, Primary Health Care Keywords: obesity; overweight; bioimpedance; adipose tissue; dietary habits; body mass index

Online: 16 August 2024 (10:34:55 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202406.0024.v1

Gene Therapy: A Revolutionary Step in Treating Thalassemia

Rasha Aziz Attia, Ghania Shehzad Alam Qureshi, Maryam Safdar, Ali Raafat, Gayatri Janardhan, Hesham Amin Hamdy Elshamy, Jhancy Malay

Subject: Medicine And Pharmacology, Hematology Keywords: beta thalassemia major; Cooley’s anemia; gene addition; gene editing; gene modification; Mediterranean Anemia; transfusion dependent beta thalassemia

Online: 3 June 2024 (07:52:49 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202404.0794.v1

Electronic Nose and GC-MS Analysis to Detect Mango Twig Tip Dieback in Mango (Mangifera indica) and Panama Disease (TR4) in Banana (Musa acuminata)

Wathsala Ratnayake, Stanley E. Bellgard, Hao Wang, Vinuthaa Murthy

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: electronic nose; headspace GC-MS analysis; Linear Discriminant Analysis (LDA); Principal Component Analysis (PCA); Volatile Organic Compounds (VOC); Chemometric Data Analysis (CDA); Panama Disease (TR4); Mango Twig Tip Dieback (MTTD)

Online: 11 April 2024 (11:13:59 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202402.1599.v1

Şengül Demiral, Meltem Nazıroğlu, Nurper Özbar, Cüneyt Taşkın

Subject: Social Sciences, Other Keywords: score analysis; competitive performance; performance analysis; covid-19

Online: 28 February 2024 (07:59:36 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202402.1084.v1

Microbial Transformation of Total Saponins from Panax notoginseng Flower by the Fungus Talaromyces flavus

Fixing Li, Yingzhong Liang, Dongmei Lin, Xiaolong Li, Lian Yang, Xingming Cui, Dengji Lou, Xiaoyan Yang

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Panax notoginseng flower; total saponins; microbial transformation; Talaromyces flavus; minor ginsenosides

Online: 20 February 2024 (11:22:54 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201702.0106.v1

A Robust Diffusion Estimation Algorithm with Self-adjusting Step-size in WSNs

Feng Chen, Qing Ye, Xiaodan Shao, Shukai Duan

Subject: Computer Science And Mathematics, Computer Science Keywords: robust diffusion estimation; self-adjusting step-size; non-Gaussian noise; wireless sensor networks

Online: 28 February 2017 (12:38:25 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202406.1703.v1

Distribution Characteristics and Genesis Mechanism of Ground Fissures in Three Northern Counties of the North China Plain

Chao Xue, Mingdong Zang, Zhongjian Zhang, Nengxiong Xu, Feiyong Wang, Cheng Hong, Guoqing Li, Fujiang Wang

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Ground fissures; North China Plain; distribution characteristics; causative mechanism

Online: 25 June 2024 (00:31:48 CEST)

Show abstract| Download PDF| Share

The North China Plain is among the regions most afflicted by ground fissure disasters in China. Recent urbanization has accelerated ground fissure activity in the three counties of the northern North China Plain, posing significant threats to both the natural environment and socioeconomic sustainability. Despite the increased attention, a lack of comprehensive understanding persists due to delayed recognition and limited research. This study conducted field visits and geological surveys across 43 villages and 80 sites to elucidate the spatial distribution patterns of ground fissures in the aforementioned counties. By integrating these findings with regional geological data, we formulated a causative model to explain ground fissure formation. Our analysis reveals a concentration of ground fissures near the Niuxi and Rongxi faults, with the former exhibiting the most extensive distribution. The primary manifestations of ground fissures include linear cracks and patch-shaped collapse pits, predominantly oriented in east-west and north-south directions, indicating tensile failure with minimal vertical displacement. Various factors contribute to ground fissure development, including fault activity, ancient river channel distribution, bedrock undulations, rainfall, and ground settlement. Fault activity establishes a concealed fracture system in shallow geotechnical layers, laying the groundwork for ground fissure formation. Additionally, the distribution of ancient river channels and bedrock undulations modifies regional stress fields, further facilitating ground fissure emergence. Rainfall and differential ground settlement serve as triggering mechanisms, exposing ground fissures at the surface. This research offers novel insights into the causative mechanisms of ground fissures in the northern North China Plain, providing valuable scientific evidence for mitigating ground fissure disasters during the urbanization process in the region.

Preprint ARTICLE | doi:10.20944/preprints202409.2289.v1

Presence of Soya in Industrial and Homemade Sausage Production in Kosovo and Its Reflection on Fatty Acid Profile

Dafina Mehmetukaj, Xhavit Bytyçi, Armend Cana, Vlora Gashi Zogejani, Malbora Shandro Zeqiri, Drita Bajraktari, Dean Jankuloski, Zehra Hajrulai-Musliu

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: allergens; soya; fatty acid profile; sausage; real-time PCR; GC-FID

Online: 29 September 2024 (11:02:25 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202408.1747.v1

Transplantation of Mature Argan Trees (Argania spinosa L. Skeels): Recovery Rate Optimization

Hamza El Ghazali, Lahoussaine Baâmal, Nour-Eddine Benaoda Tlemçani, Salma Daoud, Harrouni Moulay Cherif

Subject: Biology And Life Sciences, Plant Sciences Keywords: Argan tree; shoot pruning; root pruning; watering; transplantation; survival

Online: 23 August 2024 (17:16:40 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202408.1058.v1

Lightweight Chip Pad Real-Time Alignment Detection Method and Application Based on Improved YOLOv5s

Yanli Zou, Zongjian Zhang, Chiyang Zhou, Yufei Tan

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: deep learning; chip detection; small target detection; lightweighting

Online: 14 August 2024 (16:48:51 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202407.0380.v1

Research Hotspots and Trend Analysis of Community Public Health Based on CiteSpace and VOSviewer

Pingping Wang, Chenhui Deng, Jin Yao, Yaqiong Li, Xiaorong Huang

Subject: Public Health And Healthcare, Public Health And Health Services Keywords: community public health; Bibliometrics; Visualization; Development trend; CiteSpace; VOSviewer

Online: 4 July 2024 (14:24:03 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202406.1615.v1

Commutative Encryption and Reversible Watermarking Algorithm for Vector Maps Based on Virtual Coordinates

Qianyi Dai, Baiyan Wu, Fanshuo Liu, Zixuan Bu, Haodong Zhang

Subject: Computer Science And Mathematics, Security Systems Keywords: vector map; commutative encryption and reversible watermarking; virtual coordinates; difference expansion

Online: 24 June 2024 (08:44:20 CEST)

Show abstract| Download PDF| Share

The combination of encryption and digital watermarking technologies is a trend to achieve full lifecycle data protection. Recently, reversible data hiding in encrypted domain (RDHED) has greatly aroused the interests of many scholars. But the fixed order of first encryption and then watermarking makes this kind of algorithms unsuitable to many applications. Commutative encryption and watermarking (CEW) technology realizes the flexible combination of encryption and watermarking, and suits more applications. However, most existing CEW schemes for vector maps are not reversible and unsuitable to high precision maps. To solve this problem, here we propose a commutative encryption and reversible watermarking (CERW) algorithm for vector maps based on virtual coordinates which are uniformly distributed on the number axis. The CERW algorithm consists of virtual interval step based encryption scheme and coordinate difference based reversible watermarking scheme. In the encryption scheme, the map coordinates are moved randomly by multiples of virtual interval step defined as distance between two adjacent virtual coordinates. In the reversible watermarking scheme, difference expansion (DE) technique is used to embed the watermark bit into the coordinate difference computed based on the relative position of a map coordinate in a virtual interval. Since the relative position of a map coordinate in a virtual interval keeps unchanged during the coordinate scrambling encryption process, the watermarking operation and the encryption operation don’t interfere with each other and the commutativity between encryption and watermarking achieves. Results show that: proposed method has high security, high capacity and good invisibility. In addition, the algorithm is not only applicable to polyline and polygon vector data, but also can be applied to sparsely distributed point data which the traditional DE watermarking algorithm often fails to watermark.

Preprint ARTICLE | doi:10.20944/preprints202406.0415.v1

Zircons from Eclogite-Associated Rocks of the Marun-Keu Complex, the Polar Urals: Trace Elements and U-pb Dating

Laysan Salimgaraeva, Aleksey Berezin, Sergey Sergeev, Nikolai Gubanov, Ekaterina Stetskaya, Sergey Skublov

Subject: Environmental And Earth Sciences, Geochemistry And Petrology Keywords: zircon; trace elements; rare earth elements; U-Pb zircon geochronology; eclogites; pegmatites; the Marun-Keu complex; the Polar Urals

Online: 7 June 2024 (02:47:51 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint REVIEW | doi:10.20944/preprints202406.0347.v1

The Roles of Phytogenic Feed Additives on Mitigating Ruminant Methane Emission

Ibrahim Bature, Wu Xiaohu, Feng Yang, Zeyi Liang, Chen Yang, Liu Jing, Sun Xu, Xuezhi Ding

Subject: Biology And Life Sciences, Animal Science, Veterinary Science And Zoology Keywords: Global warming; Microbial fermentation; Phytogenic feed additives; Rumen microbiome

Online: 6 June 2024 (05:00:10 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202405.1583.v1

LC-MS Profiling Reveals Metabolic Dynamics in Apis mellifera Worker Bee Larvae–Pupae Transition

Zhen Li, Shiqing Zhong, Bin Liu, Li Zhi Li, Hai Bo Zhang, Wei Kun Guan, Dongsheng Guo

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Hymenoptera; non-targeted metabolomics; metamorphosis; KEGG

Online: 24 May 2024 (09:35:02 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202405.0899.v1

Identification and Expression Analysis of Long Noncoding RNAs in Response to Infection with VHSV in Rainbow Trout

Mahmoud Tavakoli alamouti, Ghodrat Rahimi Mianji, Ardeshir Nejati Javaremi, Ayoub Farhadi, Elham Younesi

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: lncRNAs; Oncorhynchus mykiss; VHSV; differential expression; high-throughput sequencing

Online: 14 May 2024 (11:37:49 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202405.0965.v1

Waveform Design For The Integrated Sensing, Communication and Simultaneous Wireless Information And Power Transfer System

Qilong Miao, Weimin Shi, Chenfei Xie, Yong Gao, Lu Chen

Subject: Computer Science And Mathematics, Signal Processing Keywords: simultaneous wireless information and power transfer (SWIPT); integrated sensing and communication systems (ISACS); orthogonal time frequency space (OTFS); waveform design; beamforming; semidefinite relaxation (SDR); matched filter (MF)

Online: 14 May 2024 (11:29:21 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202405.0653.v1

Land-Based Multi-level Spatial and Developmental Policy Directions and Their Implications in the Marine Environment: Case Study Northern Aegean Sea, Greece

Anestis Gourgiotis, Dionisia Koutsi, Vasiliki Krommyda, Anastasia Stratigea

Subject: Engineering, Other Keywords: Land-Sea Interaction (LSI); Marine Spatial Planning (MSP); land-based spatial policy; multilevel spatial and developmental frameworks; Northern Aegean Sea

Online: 10 May 2024 (11:47:08 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202404.0135.v1

Molecular Links between Inflammatory Bowel Disease and Mild Cognitive Impairment- a Narrative Review

Oliviu Florentiu Sarb, Adriana Daniela Porca, Maria Iacobescu, Irina-Maria Vlad, Mircea Vasile Milaciu, Lorena Ciumarnean, Vitalie Vacaras, Alina-Ioana Tantau

Subject: Medicine And Pharmacology, Neuroscience And Neurology Keywords: IBD; neurodegeneration; mild cognitive impairment; serum biomarker; systemic inflammation; gut-brain axis

Online: 2 April 2024 (07:35:44 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202403.0426.v1

Optimization of Erosion Resistant Coating Under High-Speed Flow Conditions in Wellbore to Improve Operational Efficiency

Minsheng Wang, Lingchao Xuan, Lei Wang, Jiangshuai Wang

Subject: Engineering, Energy And Fuel Technology Keywords: Wellbore; High-speed fluid flow; Optimization; Materials; Operational efficiency

Online: 8 March 2024 (03:41:09 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201701.0115.v1

A Lagrangian Approach for Computational Acoustics with Meshfree Method

Yong Ou Zhang, Stefan G. Llewellyn Smith, Tao Zhang, Tian Yun Li

Subject: Physical Sciences, Acoustics Keywords: Lagrangian approach; Lagrangian acoustic perturbation equations; computational acoustics; meshfree method; smoothed particle hydrodynamics; generalized finite difference method

Online: 25 January 2017 (11:42:54 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201607.0056.v1

Dynamic simulation of urban expansion based on cellular automata and logistic regression model: Case study of Hyrcanian region of Iran

Meisam Jafari, Seyed Masoud Monavari, Hamid Majedi, Ali Asghar Alesheikh, Mirmasoud Kheirkhah Zarkesh

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Land use change; urban sprawl; Logistic regression; Markov chain; Cellular automata; Gilan Province

Online: 18 July 2016 (11:53:16 CEST)

Show abstract| Download PDF| Share

Although, promotion of urbanization culture in recent decades has made inevitable development of cities in the world, however, the development can be guided in a direction that leave, to the extent possible, minimum socioeconomic and environmental impacts. For this, it is required to first forecast auto-spreading orientation of cities and suburbs in rural areas over time and then avoid shapeless growth of cities. This paper is an attempt to develop a dynamic hybrid model based on logistic regression (LR), Markov chain (MC), and cellular automata (CA) for prediction of future urban sprawl in fast-growing cities. The model was developed using 12 widely-used urban development criteria, whose significant coefficient was determined by logistic regression, and validated by relative operating characteristic (ROC) analysis. The validated model was run in Guilan, a tourist province in northern Iran with a very high rate of urban development. For this, changes in the area of urban land use were detected over the period of 1989 to 2013 and then, future sprawl of the province was forecasted by the years 2025 and 2037. The analysis results revealed that the area of urban land use was increased by more than 1.7 % from 36012.5 ha in 1989 to 59754.8 ha in 2013, and the area of Caspian Hyrcanian forestland was reduced by 31628 ha. The results also predicted an alarming increase in the rate of urban development in the province by the years 2025 and 2037, during which urban land use is predicted to develop 0.9 % and 1.38 %, respectively. The development pattern is expected to be uneven and scattered, without following any particular direction. The development will occur close to the existing or newly-formed urban basements as well as around major roads and commercial areas. This development, if not controlled, will lead to the loss of 13863 ha of Hyrcanian forests and if the trend continues, 21013 ha of Hyrcanian forests and 20208 ha of Barren/open lands are expected to be destroyed by the year 2037. In general, the proposed model is an efficient tool for the support of urban planning decisions and facilitates the process of sustainable development of cities by providing decision-makers with an overview on future development of cities where the growth rate is very fast.

Preprint ARTICLE | doi:10.20944/preprints201612.0068.v2

Classical and Novel TSPO Ligands for the Mitochondrial TSPO can Modulate Nuclear Gene Expression: Implications for Mitochondrial Retrograde Signaling

Nasra Yasin, Leo Veenman, Sukhdev Singh, Maya Azrad, Julia Bode, Alex Vainshtein, Bea Caballero, Ilan Marek, Moshe Gavish

Subject: Biology And Life Sciences, Cell And Developmental Biology Keywords: modulation of nuclear gene expression; mitochondrial 18 kDa translocator protein (TSPO); TSPO ligand; PK 11195; 2-Cl-MGV-1; retrograde mitochondrial-nuclear signaling pathway; microscopy; mitochondria; cell nucleus

Online: 17 March 2017 (17:28:28 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202409.2283.v1

Comparative Study on the Properties of Nitrile Rubber Filled with Carbon Powder and Carbon Black

Junan Zhou, Zepeng Wang, Liangchen Yu, Bainan Tang, Junping Song

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: NBR; carbon powder; N660 carbon black

Online: 29 September 2024 (11:04:39 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202409.0084.v1

Design and Development of Miniature Measuring Instrument for Parachute Cords Dynamic Load for Stepless Parachute Opening

Liang Wei, Zhao Xin, Wu Peng Peng, Li Yu Xin, Lv Shuai

Subject: Physical Sciences, Applied Physics Keywords: stepless parachute opening; finite element analysis; real-time measurement; wireless data transmission; static calibration

Online: 2 September 2024 (09:56:14 CEST)

Show abstract| Download PDF| Share

Spacecraft recovery technology is crucial in the field of aerospace, in which the parachute plays a key role in slowing down the descent speed of the spacecraft and realizing a smooth landing. In order to construct a dynamically adjustable parachute deployment strategy, it is necessary to measure the parachute dynamic load accurately in real time. However, the existing sensor measurement scheme is difficult to meet the measurement requirements due to its large structure and complex wiring. In order to meet the current demand for real-time measurement of parachute cords dynamic load, a miniature measuring instrument is designed.According to the function and technical requirements of the miniature measuring instrument, the hardware modules of the acquisition system are selected and designed, and the integration debugging and performance optimization of the microcontroller module, A/D sampling module, signal acquisition circuit and power supply module are carried out. The software of the parachute cords tension acquisition system based on the miniature measuring instrument is developed. The elastomer is modeled by using SolidWorks and statically analyzed by using AnsysWorkbench finite element analysis software. Then the final structure of the elastomer and the pasting position of the strain gage are determined through the results analysis as well as experimental verification. The hardware module of the signal acquisition system for the miniature measuring instrument is then encapsulated. The force value of the miniature measuring instrument is calibrated and tested many times by using the microcomputer-controlled electronic universal testing machine. The experimental results show that the designed miniature measuring instrument has accurate data, strong stability and good real-time performance, which meets the demand for real-time accurate measurement of miniature measuring instrument, and can provide reliable data for parachute cords parameter validation and stepless unfolding design.

Preprint COMMUNICATION | doi:10.20944/preprints202408.1958.v1

Research on On-Line Monitoring of Grinding Wheel Wear Based on Multi-sensor

Jingsong Duan, Guohua Cao, GuoQing Ma, Zhenglin Yu, Changshun Shao

Subject: Engineering, Mechanical Engineering Keywords: Wheel wear; Acoustic emission; Wavelet packet coefficient Support Vector Machines; Entropy weight evaluation method

Online: 28 August 2024 (02:55:49 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202408.0060.v1

PDAM-FAQ: Paraphrasing-based Data Augmentation and Mixed-Feature Semantic Matching for Low-Resource FAQs

Dongsheng Wang, Liming Wang, Kun Tang, Qile Bo, Bin Han

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: Paraphrasing; Data Augmentation; Semantic Matching; FAQ; Low-Resource

Online: 1 August 2024 (14:51:28 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202407.0685.v1

Microbiota and Recurrent Pregnancy Loss (RPL); More than a Simple Connection

Jenny Valentina GARMENDIA, Claudia Valentina De Sanctis, Marián Hajdúch, Juan Bautista De Sanctis

Subject: Medicine And Pharmacology, Reproductive Medicine Keywords: recurrent pregnancy loss (RPL); vaginal microbiota; uterine microbiota; gut microbiota; probiotic supplementation

Online: 9 July 2024 (05:45:09 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202404.1553.v1

Mechanisms of Male Reproductive Sterility Triggered by Dysbiosis of Intestinal Microorganisms

Mingbang Wei, Huaizhi Liu, Yu Wang, Mingyang Sun, Peng Shang

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: gut microbiota; male reproductive infertility; immune system; endocrine system; gut-brain-reproductive axis

Online: 25 April 2024 (15:17:12 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202404.0164.v1

Determination of Critical Damage Size of Inclined Waterproof Coal Pillar under Asymmetric Load

Xingping Lai, Xiaoqian Yuchi, Helong Gu, Pengfei Shan, Wenhua Yang

Subject: Engineering, Mining And Mineral Processing Keywords: Inclined coal seam; Asymmetric loading; Waterproof coal pillar; Critical size

Online: 2 April 2024 (05:35:59 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202403.1192.v1

A Peel Test Method to Characterise the Decay Law of Prepreg Tape Tack at Different Temperatures

Jiaqi Shi, Wang Wang, Yuequan Wang, Junwei Qi, Jun Xiao

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: tack; prepreg; composite; handling life

Online: 20 March 2024 (08:25:09 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202403.0011.v1

Influence of Specimen Size on Compressive Strength of Wood

Chuan Zhao, Degui Liu, Chuntao Zhang, Yanyan Li, Yuhao Wang

Subject: Engineering, Civil Engineering Keywords: Specimen size; Wood; Compressive strength; Influence; Finite element simulation

Online: 1 March 2024 (07:55:46 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202402.0470.v1

Identification and Characterization of AREB/ABF Gene Family in Three Orchid Species and Functional Analysis of DcaABI5 in Arabidopsis

Xi Xie, Miaoyan Lin, Gengsheng Xiao, Qin Wang, Zhiyong Li

Subject: Biology And Life Sciences, Plant Sciences Keywords: Orchid; gene family; AREB/ABF genes; cis-regulatory elements (CREs) analysis; gene expression; abscisic acid (ABA); ABA INSENSITIVE 5 (ABI5)

Online: 8 February 2024 (07:32:02 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201903.0077.v1

Effect of Gamma-Ray Irradiation on the Growth of Au Nano-Particles Embedded in the Germano-Silicate Glass Cladding of the Silica Glass Fiber and its Surface Plasmon Resonance Response

Seongmin Ju, Won-Taek Han

Subject: Chemistry And Materials Science, Nanotechnology Keywords: γ-ray irradiation; surface plasmon resonance; fiber sensor; nano-particles; cladding embedded optical fiber

Online: 6 March 2019 (11:37:09 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202409.1080.v1

Lung Microbiome in Lung Cancer: Composition and Influence – A Systematic Review of Randomised and Non-randomised Trials

Lucaciu Sergiu, Domokos Bianca, Puiu Ruxandra, Ruta Victoria, Motoc Nicoleta Stefania, Rajnoveanu Ruxandra, Todea Doina, Stoia Mirela Anca, Adina Milena Man

Subject: Medicine And Pharmacology, Pulmonary And Respiratory Medicine Keywords: lung microbiome; lung cancer

Online: 14 September 2024 (03:08:32 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202408.1076.v1

Tumor Heterogeneity in Gastrointestinal Cancer based on Multimodal Data Analysis

Dongmei Ai, Yang Du, Hongyu Duan, Juan Qi, Yuduo Wang

Subject: Computer Science And Mathematics, Mathematical And Computational Biology Keywords: tumor heterogeneity; transcriptome profile; cancer classification; multiomics; cancer imaging

Online: 14 August 2024 (14:37:35 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202403.1728.v1

Variable Doppler Starting Point Keystone Transform for Radar Maneuvering Target Detection

Wei Jia, Yuan Feng, Xingshuai Qiao, Tianrun Wang, Tao Shan

Subject: Engineering, Telecommunications Keywords: maneuvering target detection; range migration (RM); keystone transform (KT); sinc interpolation; variable Doppler starting point keystone transform (VDSPKT)

Online: 28 March 2024 (08:46:23 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202403.0396.v1

Food Beliefs and Risk of Orthorexia in Patients with Inflammatory Bowel Disease

Francesca Maria Di Giorgio, Stefania Pia Modica, Marica Saladino, Stefano Muscarella, Stefania Ciminnisi, Piero Luigi Almasio, Salvatore Petta, Maria Cappello

Subject: Medicine And Pharmacology, Gastroenterology And Hepatology Keywords: inflammatory bowel disease; orthorexia nervosa; eating disorders

Online: 8 March 2024 (01:55:35 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202403.0151.v1

Functional Analysis of Forkhead Transcription Factor Fd59a in Spermatogenesis of Drosophila melanogaster

Ting Tang, Mengyuan Pei, Yanhong Xiao, Yingshan Deng, Yuzhen Lu, Xiao-Qiang Yu, Liang Wen, Qihao Hu

Subject: Biology And Life Sciences, Cell And Developmental Biology Keywords: Spermatogenesis; Forkhead; FoxD; Testis; Apoptosis

Online: 5 March 2024 (05:01:06 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202310.1051.v1

An Experimental Study on the Impact of Minimum Quantity Lubrication Surroundings on the Machined Surface Quality during AISI 1050 Steel Circular Pocket Milling

Ly Chanh Trung, Tran Thien Phuc

Subject: Engineering, Mechanical Engineering Keywords: minimum quantity lubrication; machined surface quality; Up-milling side; Down-milling side; surface roughness

Online: 17 October 2023 (12:04:26 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202309.0340.v1

A Direct Laser Sintering Approach for the Electrophoretic Deposition Overlay of Yttria-Stabilized Zirconia on the Surface of a Thermal Barrier Coating System

Maryam Abdul-Adheem Ali Bash, Sami A. Ajeel Abo-alnoon Ajeel, Ruqaia Abdul-Kadhim Abbas, Mohammed Jasim

Subject: Engineering, Metallurgy And Metallurgical Engineering Keywords: thermal barrier coatings; YSZ; electrophoretic deposition; direct laser sintering

Online: 5 September 2023 (15:39:50 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202012.0246.v1

Case Study of the Effect of Precoating on the Decarburization of the Surface Layer of Forged Parts during the Hot Die Forging Process

Paweł Widomski, Maciej Zwierzchowski, Artur Barełkowski, Mateusz Tympalski

Subject: Engineering, Automotive Engineering Keywords: decarburization; precoating; hot forging

Online: 10 December 2020 (10:25:38 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201809.0105.v1

LDAS-Monde Sequential Assimilation of Satellite Derived Observations Applied to the CONtiguous US: An ERA-5 Driven Reanalysis of the Land Surface Variables

Clément Albergel, Simon Munier, Aymeric Bocher, Bertrand Bonan, Yongjun Zheng, Clara Draper, Delphine J. Leroux, Jean-Christophe Calvet

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Land Surface Data Assimilation, remote sensing, ERA5

Online: 6 September 2018 (00:24:47 CEST)

Show abstract| Download PDF| Share

LDAS-Monde, an offline land data assimilation system with global capacity, is applied over the CONtiguous US (CONUS) domain to enhance monitoring accuracy for water and energy states and fluxes. LDAS-Monde ingests satellite-derived Surface Soil Moisture (SSM) and Leaf Area Index (LAI) estimates to constrain the Interactions between Soil, Biosphere, and Atmosphere (ISBA) Land Surface Model (LSM) coupled with the CNRM (Centre National de Recherches Météorologiques) version of the Total Runoff Integrating Pathways (CTRIP) continental hydrological system (ISBA-CTRIP). LDAS-Monde is forced by the ERA-5 atmospheric reanalysis from the European Center For Medium Range Weather Forecast (ECMWF) from 2010 to 2016 leading to a 7-yr, quarter degree spatial resolution offline reanalysis of Land Surface Variables (LSVs) over CONUS. The impact of assimilating LAI and SSM into LDAS-Monde is assessed over North America, by comparison to satellite-driven model estimates of land evapotranspiration from the Global Land Evaporation Amsterdam Model (GLEAM) project, and upscaled ground-based observations of gross primary productivity from the FLUXCOM project. Also, taking advantage of the relatively dense data networks over CONUS, we also evaluate the impact of the assimilation against in-situ measurements of soil moisture from the USCRN network (US Climate Reference Network) are used in the evaluation, together with river discharges from the United States Geophysical Survey (USGS) and the Global Runoff Data Centre (GRDC). Those data sets highlight the added value of assimilating satellite derived observations compared to an open-loop simulation (i.e. no assimilation). It is shown that LDAS-Monde has the ability not only to monitor land surface variables but also to forecast them, by providing improved initial conditions which impacts persist through time. LDAS-Monde reanalysis has a potential to be used to monitor extreme events like agricultural drought, also. Finally, limitations related to LDAS-Monde and current satellite-derived observations are exposed as well as several insights on how to use alternative datasets to analyze soil moisture and vegetation state.

Preprint ARTICLE | doi:10.20944/preprints202404.0570.v2

The Impact of Predation Risks on the Development and Fecundity of the Bactrocera dorsalis Hendel

Xin Liu, Jian Wen, Xingyu Geng, Lu Xiao, Zhe Shan, Yan zhou, Xianli Lu, Yu Fu, ying fu, Fengqin Cao

Subject: Biology And Life Sciences, Insect Science Keywords: Bactrocera dorsalis ; Hendel; non-lethal effects; phenotypic plasticity; predator-prey interaction; pest management

Online: 9 April 2024 (12:31:26 CEST)

Show abstract| Download PDF| Share

Preprint BRIEF REPORT | doi:10.20944/preprints202404.0158.v1

Molecular Detection and Characterization of Mycoviruses in the Genus Armillaria in the Czech Republic

Lucie Walterová, Leticia Botella, Ondřej Hejna, Marcos De La Pena, Tomáš Tonka, Vladislav Čurn

Subject: Biology And Life Sciences, Virology Keywords: Root rot, viruses; circular genetic elements; ambivirus; tymovirus; biological control

Online: 2 April 2024 (05:38:50 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202403.1321.v1

Research on MODIS Satellite Three-Dimensional Cloud Structure Retrieval and Fusion Technology

Yu Qin, Yubao Liu, Fengxian Wang, Hang Fan, Yongbo Zhou, Jing Duan

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: 3D cloud fields; cloud retrieval; Deep learning; CloudSat; MODIS; CGAN

Online: 21 March 2024 (15:18:40 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202402.0919.v1

Microstructure, Physical Properties and Oxidative Stability of Olive Oil Oleogels Composed of Sunflower Wax and Monoglycerides

Dafni Dimakopoulou-Papazoglou, Konstantina Zampouni, Prodromos Prodromidis, Thomas Moschakis, Eugenios Katsanidis

Subject: Biology And Life Sciences, Food Science And Technology Keywords: oleogels; sunflower wax; lipid structuring; crystallization; FTIR; storage

Online: 22 February 2024 (05:03:36 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201610.0055.v1

Numerical Simulation of Hypervelocity Impact FEM-SPH Algorithm Based on Large Deformation of Material

Aimin Yang, Jinze Li, Hengheng Qu, Yuhang Pan, Yanhong Kang, Yuzhu Zhang

Subject: Computer Science And Mathematics, Analysis Keywords: finite element method; smoothed particle method; fem-sph algorithm; large deformation; super high speed collision

Online: 14 October 2016 (11:05:45 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202409.1930.v1

Circular Design for Natural Fibers: A Literature Review on Life Cycle Evaluation Approaches for Environmental, Social and Economic Sustainability

Francesca Thiebat, Elena Fregonara, Alice Masoero, Fiamma Morselli, Chiara Senatore, Roberto Giordano

Subject: Environmental And Earth Sciences, Sustainable Science And Technology Keywords: LCA; LCC; S-LCA; LCSA; circular design; natural fibers; environmental sustainability; social sustainability; economic sustainability; evaluation approaches; life cycle

Online: 24 September 2024 (14:04:06 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202409.1166.v1

Comparative Study of a Compound Antioxidant and Ethoxyquin on Feed Oxidative Stability, Broiler Performance, Antioxidant Capacity, and Intestinal Health

Yong Xiao, Xuyang Gao, Jianmin Yuan

Subject: Biology And Life Sciences, Animal Science, Veterinary Science And Zoology Keywords: compound antioxidant; ethoxyquin; broiler; antioxidant capacity; intestinal health

Online: 17 September 2024 (04:59:06 CEST)

Show abstract| Download PDF| Share

Concerns regarding the safety of ethoxyquin (EQ) have gradually increased, highlighting the necessity of identifying safer and more effective antioxidants for use in animal feed. This study investigates the effects of a compound antioxidant (CA) as an alternative to ethoxyquin on feed oxidative stability, growth performance, antioxidant capacity, and intestinal health in broilers. A total of 351 one-day-old Arbor Acres Plus male broilers were randomly assigned to three treatments with nine replicates of 13 birds each. The experimental treatments included: CON group (basal diet), EQ group (basal diet + 200 g/ton EQ at 60% purity), and CA group (basal diet + 200 g/ton compound antioxidant, which comprises 18% butylated hydroxytoluene, 3% citric acid, and 1% tertiary butylhydroquinone). The experiment lasted for 21 days. Compared to the control group, supplementation with CA significantly reduced the acid value, peroxide value, and malondialdehyde content in the feeds after storage. Moreover, CA supplementation significantly decreased feed intake and the feed conversion ratio (FCR) without affecting weight gain of boilers, while also improving liver antioxidant capacity (increased T-AOC and SOD levels), intestinal antioxidant capacity (increased CAT, HO-1, and GPX7 protein expression), and enhancing the duodenal villus height-to-crypt depth ratio and jejunal villus height. Additionally, CA treatment reduced intestinal barrier permeability (decreased diamine oxidase activity and D-lactate levels), potentially by promoting the expression of Occludin, ZO-1, and Mucin2 protein. Furthermore, the addition of CA elevated the protein levels of NF-κB p50 along with its inhibitory factors, IκB and NF-κB p105, in the intestines of broilers, thereby enhancing immune regulatory capacity. This supplementation also led to an increased abundance of beneficial gut microorganisms, including Lactobacillus, Alistipes, Candidatus Arthromitus, and Turicibacter. In comparison to the EQ group, CA supplementation enhanced feed oxidative stability, decreased the FCR, and improved the intestinal morphology, barrier functions, and inflammatory status in broilers. These findings suggest that this compound antioxidant may serve as a healthier and more effective alternative to ethoxyquin.

Preprint ARTICLE | doi:10.20944/preprints202407.2501.v1

Assessment of Ukraineʹs Food Self‐Sufficiency against the background of either the European Union or Poland

Piotr Szajner, Iwona Szczepaniak, Wiesław Łopaciuk

Subject: Business, Economics And Management, Economics Keywords: food self‐sufficiency; food security; production potential of agriculture; war in Ukraine; European Union; Poland

Online: 31 July 2024 (11:45:57 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202407.1874.v1

Cone Beam Computed Tomography Panoramic Mandibular Indices in the Screening of Postmenopausal Women with Low Bone Mass: Correlations with Bone Quantity and Quality

Ioana Ruxandra Poiana, Iulia Florentina Burcea, Silviu Mirel Pituru, Alexandru Bucur

Subject: Medicine And Pharmacology, Dentistry And Oral Surgery Keywords: osteoporosis; menopause; cone beam computed tomography

Online: 24 July 2024 (10:41:23 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202407.1146.v1

The Prevalence of Gestational Diabetes Mellitus in Polycystic Ovary Disease—A Systematic Review, Meta-Analysis, and Exploration of Associated Risk Factors

Rajani Dube, Taniqsha Bambani, Sahina Saif, Noha Hashmi, MohamedAnas MohamedFaruk Patni, Noopur Ramesh Kedia

Subject: Medicine And Pharmacology, Obstetrics And Gynaecology Keywords: polycystic ovary syndrome; gestational diabetes mellitus; systematic review; meta-analysis; risk factors for gestational diabetes

Online: 15 July 2024 (10:41:05 CEST)

Show abstract| Download PDF| Share

Polycystic ovary syndrome (PCOS) is a common condition in reproductive-age women. Women with PCOS are at higher risk of pregnancy complications including gestational diabetes (GDM). The prevalence of PCOS and GDM varies according to the diagnostic criteria used. The mechanism for the occurrence of GDM in women with PCOS is still unclear. Materials & Methods- A systematic search of the electronic database was done using keywords like PCOS, and GDM to include studies between April 2008 and March 2023 where uniform diagnostic criteria were used. Studies were excluded with high-risk of bias after the assessment of bias, and meta-analysis was done with relative risks and confidence intervals. Results & Discussion-Out of 1896 search results, 95 were selected for full-text. The quality of the studies was scrutinized and a total of 28 studies were included as they fulfilled the inclusion criteria. The incidence of GDM in women with PCOS was found to be 10.55 % (2.9- 54.9%) from pooled data involving 1,280,245. The prevalence of PCOS in women diagnosed with GDM was found from pooled data of 36,351 women in retrospective studies to be 2.47% (1.5- 50.1%). Selection predominantly included cohort studies, most commonly from China. The meta-analysis reported the risk of GDM is higher in women with PCOS than in those without PCOS (HR: 1.59, 95% CI: 1.27–1.91, p < 0.001). Family history of diabetes, ethnicity, pre-pregnancy BMI, insulin resistance, gestational weight gain, use of assisted reproductive techniques, and multifetal gestation were the risk factors for GDM in women with PCOS. Conclusion- The prevalence of GDM in patients with PCOS is high, but the causality is complex. The newer predictive models are promising in clarifying the causative relationships, yet use various parameters at different cut-offs. There is a need for the development of universally acceptable parameters for the early prediction of GDM in women with PCOS.

Search Results

41137 articles found