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Preprint ARTICLE | doi:10.20944/preprints201809.0179.v1

Incipient Bulk Polycrystal Plasticity Observed by Synchrotron in-situ Topotomography

Henry Proudhon, Nicolas Gueninchault, Samuel Forest, Wolfgang Ludwig

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: Polycrystal plasticity; X-ray diffraction imaging; Topotomography; in situ experiment; Finite element simulation, lattice curvature, rocking curve

Online: 10 September 2018 (16:12:39 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201807.0597.v1

A Polymer-Gel Eye-Phantom for 3D Fluorescent Imaging of Millimetre Radiation Beams

Leonard Luthjens, Tiantian Yao, John Warman

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: Keywords: Radiotherapy eye-phantom; radio-fluorogenic gel; x-ray beam imaging; 3D radiation imaging; polymer gel dosimetry.

Online: 30 July 2018 (15:41:48 CEST)

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Preprint REVIEW | doi:10.20944/preprints201805.0473.v1

Electron Microscopy and Spectroscopy in the Analysis of Friction and Wear Mechanisms

Quanshun Luo

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: electron microscopy; energy dispersive X-ray spectroscopy (EDX); electron energy loss spectroscopy (EELS); worn surface analysis; tribofilms

Online: 31 May 2018 (11:27:10 CEST)

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Preprint REVIEW | doi:10.20944/preprints202409.2194.v1

Chest Tube and Pleural Drainage: History and Current Status in Pleural Diseases Management

Claudio Sorino, David Feller-Kopman, Federico Mei, Michele Mondoni, Sergio Agati, Giampietro Marchetti, Najib M. Rahman

Subject: Medicine And Pharmacology, Pulmonary And Respiratory Medicine Keywords: Chest tube; Pleural effusion; Empyema; Pneumothorax; Drainage

Online: 27 September 2024 (11:03:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1128.v1

chest mobilization and breathing exercises on respiratory function, trunk stability, and endurance in chronic stroke patients who have contracted coronavirus disease

Yang Jin Lee, YooRim Kim, Dong Hoon Kim

Subject: Public Health And Healthcare, Physical Therapy, Sports Therapy And Rehabilitation Keywords: covid-19; diaphragm; chest mobilization; respiratory fucntion

Online: 18 October 2023 (08:14:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202209.0185.v1

Role of Chest Radiographs and Electrocardiograms in Predicting the Hemodynamics of Congenital Heart Disease

Romila Chimoriya, Gaurav Kumar, Kritika Rana, Ritesh Chimoriya, Reena Anand, Kulbhusan S. Dagar, Neeraj Awasthy

Subject: Medicine And Pharmacology, Pediatrics, Perinatology And Child Health Keywords: congenital heart disease; chest radiograph; electrocardiogram; echocardiography

Online: 14 September 2022 (02:55:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1641.v1

Geochemical Characteristics of Modern River-Sand and Its Bearing on the Mineral Exploration in the Manufahi Area, Timor-Leste

Vital Vilanova, Tomoyuki Ohtani, Satoru Kojima, Kazuma Yatabe, Elizario Moniz

Subject: Environmental And Earth Sciences, Geochemistry And Petrology Keywords: Manufahi area; Timor-Leste; river sands; X-ray fluorescence (XRF) analysis; geochemical anomaly; statistical analysis; mineralization; mineral exploration

Online: 23 August 2024 (09:07:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.1510.v1

Synthesis, Characterization, X-ray Molecular Structure, Antioxidant, Antifungal and Allelopathic Activity of a new Isonicotinate-derived meso-Tetraarylporphyrin

Nour Elhouda Dardouri, Soukhayna Hrichi, Pol Torres, Raja Chaâbane-Banaoues, Alessandro Sorrenti, Thierry Roisnel, Ilona Turowska-Tyrk, Hamouda Baba, Joaquim Crusats, Albert Moyano, Habib Nasri

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: free base porphyrin; isonicotinic acid; X-ray molecular structure; UV-visible; fluorescence; antioxidant activity; antifungal activity; allelopathic activity

Online: 23 May 2024 (12:30:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202212.0572.v1

Structural and Dynamic Characterization of Candida boidinii Formate Dehydrogenase by High-Resolution X-ray Crystallography

Mehmet Gul, Busra Yuksel, Huri Bulut, Hasan DeMirci

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: formate dehydrogenase; Candida boidinii; protein engineering; X-ray crystallography; structural biology; structural dynamics; Turkish Light Source; Turkish DeLight.

Online: 30 December 2022 (08:03:07 CET)

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Preprint ARTICLE | doi:10.20944/preprints202111.0430.v1

Two Compounds of 1-((4-Bromothiophen-2-Yl)Methylene)-2-(Perfluorophenyl)Hydrazine, and 1-((4-Bromo-5-Methylthiophen-2-Yl)Methylene)-2-(Perfluorophenyl)Hydrazine and They Crystal, Molecular and Electronic Properties

Július Sivý, Dušan Bortňák, Daniel Végh, Erik Rakovský

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Ab initio DFT/B3LYP/6-311G/Auto calculation; hydrazine; Hirshfeld surface; hydrogen interactions; single-crystal X-ray study

Online: 23 November 2021 (15:03:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202007.0406.v1

X-Ray Photoelectron Spectroscopy for Determining Interface Dipoles of Self-Assembled Monolayers

Thomas C. Taucher, Egbert Zojer

Subject: Physical Sciences, Condensed Matter Physics Keywords: x-ray photoelectron spectroscopy; XPS; self-assembled monolayer; SAM; collective electrostatic; band-structure calculation; density-functional theory; DFT

Online: 19 July 2020 (10:40:47 CEST)

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Working Paper ARTICLE

Ablation patterns in externally applied electric and magnetic fields

Jovan Maksimovic, Soon Hock Ng, Tomas Katkus, Nguyen Hoai An Le, James W. M. Chon, Bruce C C Cowie, Tao Yang, Yves Bellouard, Saulius Juodkazis

Subject: Chemistry And Materials Science, Nanotechnology Keywords: ablation; electric field; magnetic field; debris; femtosecond laser fabrication; Silicon; near edge X-ray absorption fine structure (NEXAFS)

Online: 16 January 2020 (11:08:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints201907.0206.v1

Structural, Magnetic and Mössbauer Studies of Ga and Zr Doped Dy₂Fe_17-XZr_Xand Dy₂Fe₁₆Ga_1-xZr_x (x=0.00, 0.25, 0.50, 0.75, 1.00)

Jiba Nath Dahal, K. S. Syed Ali

Subject: Physical Sciences, Condensed Matter Physics Keywords: permanent magnetic materials; 2:17 intermetallic; X-ray diffraction; rietveld analysis; Mössbauer Spectroscopy; curie temperature; soft magnet; doping

Online: 17 July 2019 (11:14:08 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0149.v1

Supramolecular Organogels Based on N-Benzyl, N’-Acylbispidinols

Alexey Medved'ko, Alexander Dalinger, Vyacheslav Nuriev, Vera Semashko, Andrei Filatov, Alexander Ezhov, Andrei Churakov, Judith A. K. Howard, Andrey Shiryaev, Alexander Baranchikov, Vladimir Ivanov, Sergey Vatsadze

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: Organic nanomaterials, bispidines; supramolecular gels; SEM, TEM, AFM study; X-ray diffraction; FT IR-spectroscopy; ATR-spectroscopy; SAXS

Online: 12 December 2018 (13:06:31 CET)

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Preprint ARTICLE | doi:10.20944/preprints201807.0420.v1

On the Rehydration of Organic Layered Double Hydroxides to Form Graphene-LDH Nanocomposites

Eleonora Conterosito, Luca Palin, Diego Antonioli, Maria Pia Riccardi, Enrico Boccaleri, Maurizio Aceto, Marco Milanesio, Valentina Gianotti

Subject: Chemistry And Materials Science, Nanotechnology Keywords: layered double LDHs; graphene; mixed oxides; re-hydration; memory Effect; X-ray diffraction; Raman spectroscopy; scanning electron microscopy

Online: 23 July 2018 (12:02:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0507.v1

Chest X-Ray Findings and Prognostic Factors in Survival Analysis in Peritoneal Dialysis and Hemodialysis Patients: A Retrospective Cohort Study

Nilgün Tan Tabakoglu, Osman Nuri Hatipoglu

Subject: Medicine And Pharmacology, Other Keywords: Peritoneal dialysis; Hemodialysis; Etiology; Mortality; Survival; Chest radiography

Online: 5 July 2024 (09:47:57 CEST)

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Background and Objectives: To analyze survival in peritoneal and hemodialysis patients using chest radiography and biochemical parameters, determine dialysis etiologies and common mortality causes, reveal prognostic factors, and contribute to clinical practice. Materials and Methods: This retrospective cohort study was based on the analysis of data from 33 peritoneal dialysis and 37 hemodialysis patients who were followed and treated in our hospital between October 2018 and February 2020. Chest X-ray measurements (cardiothoracic index, pulmonary vascular pedicle width, right pulmonary artery diameter, diaphragmatic height) and biochemical parameters (urea, albumin, creatinine, parathormone, ferritin, hemoglobin, arterial blood gas, potassium) were analyzed to assess their impact on survival. Statistical analyses were performed using the Shapiro-Wilk, Wilcoxon signed rank test, Mann-Whitney U test, McNemar test, Kaplan-Meier survival analysis, Cox regression analysis, Spearman correlation test, Phi test, and ROC analysis. Results: The most common etiologies of dialysis were hypertension, type 2 diabetes mellitus, and urogenital disorders. The most common cause of death in peritoneal dialysis patients was peritonitis (38.5%), while in hemodialysis patients, it was cardiovascular diseases (47.4%). In chest X-ray measurements, pulmonary vascular pedicle width (p=0.003) and pulmonary artery diameter increased significantly (p=0.002) in hemodialysis patients, while pulmonary vascular pedicle width (p=0.028) and diaphragmatic height (p=0.004) increased significantly in peritoneal dialysis patients. No significant difference was found between the two groups in terms of biochemical parameters. Kaplan-Meier survival analysis showed that there was no significant difference in survival between peritoneal dialysis and hemodialysis methods (P>0.05). Significant correlations were found between both radiologic status and clinical status and between intact parathormone levels and pulmonary vascular pedicle width (p=0.016, p=0.024). In Cox regression analysis, age, intact parathormone levels, iPTH/PVPW ratio, and clinical status were found to be factors affecting survival (p

Preprint ARTICLE | doi:10.20944/preprints202401.1878.v1

Is Chest Tube Omission Safe for Patients with Primary Spontaneous Pneumothorax Scheduled for VATS?

Chang Wan Kim, Il Hwan Park, Chun Sung Byun

Subject: Medicine And Pharmacology, Pulmonary And Respiratory Medicine Keywords: Pneumothorax; Chest tube; Video-assisted thoracoscopic surgery; Recurrence

Online: 26 January 2024 (09:41:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints202307.1979.v1

Novel Risks of Unfavorable Corticosteroid Response in Patients with COVID-19 Identified by Artificial Intelligence-Assisted Analysis of Chest Radiographs

Min Hyung Kim, Hyun Joo Shin, Jaewoong Kim, Sunhee Jo, Eun-Kyung Kim, Yoon Soo Park, Taeyoung Kyong

Subject: Medicine And Pharmacology, Internal Medicine Keywords: artificial intelligence; chest radiograph; corticosteroid responsiveness; COVID-19

Online: 28 July 2023 (11:50:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0906.v1

CD4+CD31+ and CD4+CD44+ Lymphocytes in Peripheral Blood, CD8+CD31+ and CD8+CD103+ Lymphocytes in Bronchoalveolar Lavage Fluid, and Pulmonary Nodules in Predicting the Course of Pulmonary Sarcoidosis

Edvardas Danila, Regina Aleksonienė, Justinas Besusparis, Vygantas Gruslys, Laimutė Jurgauskienė, Aida Laurinaviciene, Arvydas Laurinavicius, Antanas Mainelis, Rolandas Zablockis, Ingrida Zeleckiene, Edvardas Žurauskas, Radvile Malickaite

Subject: Medicine And Pharmacology, Pulmonary And Respiratory Medicine Keywords: sarcoidosis; bronchoalveolar lavage; chest computed tomography; biological markers

Online: 25 April 2023 (09:27:52 CEST)

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Preprint REVIEW | doi:10.20944/preprints201810.0027.v1

Chest Compressions in the Delivery Room

Catalina Garcia-Hidalgo, Georg M. Schmölzer

Subject: Medicine And Pharmacology, Pediatrics, Perinatology And Child Health Keywords: Infants, Newborn, Neonatal Resuscitation, Chest compressions, Delivery room

Online: 2 October 2018 (14:58:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1850.v1

Beta-Hydroxybutyric Acid as a Template for the X-ray Powder Diffraction Analysis of Gamma-Hydroxybutyric Acid

Domenica Marabello, Carlo Canepa, Alma Cioci, Paola Benzi

Subject: Chemistry And Materials Science, Other Keywords: X-ray powder diffraction; non-destructive analysis; spiked beverages; γ -hydroxybutyric acid (GHB); β -hydroxybutyric acid (BHB); drink analysis

Online: 24 July 2024 (07:20:12 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202404.0833.v1

Convenient Preparation, Thermal Properties and X-Ray Structure Determination of 2,3-Dihydro-5,6,7,8-tetranitro-1,4-benzodioxine (TNBD): a Promising High Energy Density Material (HEDM)

Jonas Šarlauskas

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: 1,4-benzodioxane; nitration; nitro derivatives; tetranitro; synthesis; X-ray crystallography; structure; thermal analysis; high energy high density material (HEDM)

Online: 12 April 2024 (08:03:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.1515.v1

Ternary Phenolate-Based Thiosemicarbazone Complexes of Copper(II): Magnetostructural Properties, Spectroscopic Features and Marked Selective Antiproliferative Activity Against Cancer Cells

Iman K. Al-Salmi, Musa S. Shongwe

Subject: Chemistry And Materials Science, Inorganic And Nuclear Chemistry Keywords: mononuclear and dinuclear ternary copper(II) complexes; thiosemicarbazone; X-ray structures; tetragonal distortion; intermolecular forces; spectroscopy; selective potent cytotoxicity

Online: 20 December 2023 (10:22:57 CET)

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The new diprotic ligand 3,5-di-tert-butylsalicylaldehyde 4-ethyl-3-thiosemicarbazone, abbreviated H2(3,5-t-Bu2)-sal4eT, exists as the thio-keto tautomer and adopts the E-configuration with respect to the imine double bond as evidenced by single-crystal X-ray analysis and corroborated by spectroscopic characterisation. Upon treatment with Cu(OAc)2·H2O in the presence of either 2,9-dimethyl-1,10-phenanthroline (2,9-Me2-phen) or 1,10-phenanthroline (phen) as a co-ligand in MeOH, this thiosemicarbazone undergoes conformational transformation (relative donor-atom orientations: syn,anti → syn,syn) concomitantly with tautomerization and double deprotonation to afford the ternary copper(II) complexes [Cu{(3,5-t-Bu2)-sal4eT}(2,9-Me2-phen)] (1) and [Cu2{3,5-t-Bu2)-sal4eT}2(phen)] (2). Crystallographic elucidation has revealed that complex 1 is a centrosymmetric dimer of mononuclear copper(II) complex molecules brought about by intermolecular H-bonding. The coordination geometry at the copper(II) centre is best described as distorted square pyramidal in accord with the trigonality index (τ = 0.14). The co-ligand adopts an axial-equatorial coordination mode; hence there is a disparity between its two Cu–N coordinate bonds arising from weakening of the apical one as a consequence of the tetragonal distortion. The axial X-band ESR spectrum of complex 1 is consistent with retention of this structure in solution. Complex 2 is a centrosymmetric dimer of dinuclear copper(II) complex molecules exhibiting intermolecular H-bonding and π-π-stacking interactions. The two copper(II) centres, which are 4.8067(18) Å apart and bridged by the thio-enolate nitrogen of the quadridentate thiosemicarbazonate ligand, display two different coordination geometries, one distorted square planar (τ4 = 0.082) and the other distorted square pyramidal (τ5 = 0.33). Such dinuclear copper(II) thiosemicarbazone complexes, which are crystallographically characterised, are extremely rare. In vitro, complexes 1 and 2 outperform cisplatin as antiproliferative agents in terms of potency and selectivity towards HeLa and MCF-7 cancer cell lines.

Preprint ARTICLE | doi:10.20944/preprints202308.1928.v1

Using the BWA (Bertaut-Warren-Averbach) Method to Optimize the Technology of Crystalline Powders such as LiFePO4

Aleksandr Bobyl, Oleg Konkov, Mislimat Faradzheva, Igor Kasatkin

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: crystallites in powders; Lamé's shape; X-ray sizes; Bertaut-Warren-Averbach; Normal distributions; Lognormal distribution; energy storage; energy optimization

Online: 29 August 2023 (08:46:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.0266.v1

Effect of Fiber Sizing Levels on the Mechanical Properties of Carbon Fiber Reinforced Thermoset Composites

Albraa A. Jaber, Sara Abbas, Abdiaziz A. Farah, Karina Kopec, Yahya Al-Salik, Mohammed Tayeb, Nikhil Verghese

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Carbon fiber; thermoset; sizing; single fiber tensile testing; single fiber pullout testing; sizing levels; X-ray photoelectron spectroscopy (XPS)

Online: 3 August 2023 (10:52:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.0184.v1

Non-Covalent Interactions between dUTP C5-Substituents and DNA Polymerase Result in a Decrease in PCR Efficiency

Olga A. Zasedateleva, Sergey A. Surzhikov, Viktoriya E. Kuznetsova, Valeriy E. Shershov, Victor E. Barsky, Alexander S. Zasedatelev, Alexander V. Chudinov

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: C5-modified dUTPs; A and B family DNA polymerases; PCR amplification; X-ray structure; molecular modeling; non-covalent interactions

Online: 2 August 2023 (08:21:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202210.0380.v1

Synthesis, Properties and Spatial Structure of 4-[(3,5-dimethyl-1,2-oxazol-4-yl)sulfonyl]cytisine

Marat K. Ibrayev, Оralgazy A. Nurkenov, Zhanara B. Rakhimberlinova, Altynaray T. Takibayeva, Dastan M. Turdybekov, Tulegen M. Seilkhanov, Meruyert B. Issabayeva, Assel A. Kelmyalene

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: sulfo-derivatives of azoles; alkaloid cytisine; spatial structure; hemorheological activity; 1H; 13C; 2D NMR spectroscopy; X-ray diffraction analysis

Online: 25 October 2022 (07:33:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0464.v1

Hybrid Nanoparticles Based on Cobalt Ferrite and Gold: Preparation and Characterization

Svetlana Saikova, Alexander Pavlikov, Tatyana Trofimova, Yuri Mikhlin, Denis Karpov, Anastasia Asanova, Yuri Grigoriev, Mikhail Volochaev, Sergey Zharkov, Dmitry Velikanov

Subject: Chemistry And Materials Science, Biomaterials Keywords: CoFe2O4/Au nanoparticles; toxicity; X-ray photoelectron spectroscopy; anion-exchange resin pre-cipitation; hybrid nanoparticles; synthesis; magnetic hysteresis loops

Online: 18 March 2021 (09:33:26 CET)

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Preprint ARTICLE | doi:10.20944/preprints201903.0166.v1

High Consistency of Structure-Based Design and X-Ray Crystallography: Design, Synthesis, Kinetic Evaluation and Crystallographic Binding Mode Determination of Biphenyl-N-Acyl-β-D-Glucopyranosylamines as Glycogen Phosphorylase Inhibitors

Thomas Fischer, Symeon M. Koulas, Anastasia S. Tsagkarakou, Efthimios Kyriakis, George A. Stravodimos, Vassiliki T. Skamnaki, Panagiota G.V. Liggri, Spyros E. Zographos, Rainer Riedl, Demetres D. Leonidas

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: Structure-based design; glycogen phosphorylase inhibitor; glycogen metabolism; type 2 diabetes; X-ray crystallography; N-acyl-β-D-glucopyranosylamine

Online: 15 March 2019 (14:06:06 CET)

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Preprint ARTICLE | doi:10.20944/preprints201810.0013.v1

Mechanochemical Induced Structure Transformations in Lithium Titanates: A Detailed PXRD and 6Li MAS NMR Study

Dennis Becker, Robert Haberkorn, Guido Kickelbick

Subject: Chemistry And Materials Science, Inorganic And Nuclear Chemistry Keywords: lithium titanium oxide; mechanochemistry; high energy ball milling; X-ray diffraction; Rietveld refinement; 6Li SPE MAS NMR; impedance spectroscopy

Online: 1 October 2018 (14:20:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201802.0021.v1

In Vitro Antibacterial Activities of Aniline Dithiocarbamate Crystals with its Corresponding Oxovanadium(IV) and Zinc(II) Coordination Compounds

Ayodele Odularu, Peter Adewale Ajibade, Albert Bolhuis

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: Keywords: one-pot synthesis; single crystal x-ray crystallography; oxovanadium(IV); zinc(II); spectroscopic studies; in vitro antibacterial studies.

Online: 2 February 2018 (16:00:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints202405.1470.v1

X-ray Single-Crystal Analysis, Pharmaco-Toxicological Profile and Enoyl-ACP Reductase Inhibiting Activity of Leading Sulfonyl Hydrazone Derivatives with Potent Antimycobacterial Activity

Yoanna Teneva, Rumyana Simeonova, Orlin Besarboliev, Hristina Sbirkova-Dimitrova, Violina T. Angelova

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: tuberculosis; sulfonyl hydrazones; acute toxicity; sub-acute toxicity; antioxidant activity; Mycobacterium tuberculosis; enoyl-ACP reductase; Single crystal x-ray diffraction

Online: 23 May 2024 (10:01:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.1240.v1

Effect of Geometrical Confinement on Ordering of Thermoplastic Polyurethanes With Crystallizable Hard and Soft Blocks

Ainur F. Abukaev, Marina Gorbunova, Denis V. Anokhin, Dimitri A. Ivanov

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: thermoplastic polyurethane; poly(butylene adipate) diol; polycaprolactone diol; phase separation; crystallization kinetics; differential scanning calorimetry; infrared spectroscopy; X-ray diffraction

Online: 21 November 2023 (06:03:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202108.0377.v1

Magnetic Field Perturbations to a Soft X-Ray Activated Fe (II) Molecular Spin State Transition

Guanhua Hao, Alpha T. N'Diaye, Thilini K. Ekanayaka, Ashley S. Dale, Xuanyuan Jiang, Esha Mishra, Corbyn Mellinger, Saeed Yazdani, John W. Freeland, Jian Zhang, Ruihua Cheng, Xiaoshan Xu, Peter A. Dowben

Subject: Physical Sciences, Condensed Matter Physics Keywords: Spin crossover; Fe(II); activation barriers; X-ray excitation; magnetic field effects; [Fe{H2B(pz)2}2(bipy)]; molecular multiferroic.

Online: 18 August 2021 (11:30:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0222.v1

Evidence of Stable Foraminifera Biomineralization During the Last Two Climate Cycles in the Tropical Atlantic Ocean

Stergios D. Zarkogiannis, Assimina Antonarakou, Vincent Fernandez, P. Graham Mortyn, George Kontakiotis, Hara Drinia, Mervyn Greaves

Subject: Environmental And Earth Sciences, Paleontology Keywords: planktonic foraminifera; shell weight; climate variability; sea surface density; carbonate production; X-ray microscopy (μCT); δ18O and Mg/Ca analyses

Online: 10 September 2020 (04:48:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201903.0097.v1

Synthesis and Characterization of Te Nanotubes Decorated with Pt Nanoparticles for Fuel Cell Anode/Cathode Working at Neutral pH

Maria Rachele Guascito, Daniela Chirizzi, Emanuela Filippo, Francesco Milano, Antonio Tepore

Subject: Chemistry And Materials Science, Electrochemistry Keywords: Te nanotubes decorated with Pt nanoparticles; fuel cell neutral pH; oxygen reduction reaction; methanol oxidation reaction; X-ray photoelectron spectroscopy.

Online: 7 March 2019 (13:49:46 CET)

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Preprint ARTICLE | doi:10.20944/preprints201812.0173.v2

Synthesis, Crystal Structure, DFT studies, Docking Studies and Fluorescent Properties of 2-(Adamantan-1-yl)-2H-isoindole-1-carbonitrile

Jacques Joubert

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: 2-(Adamantan-1-yl)-2H-isoindole-1-carbonitrile; X-ray diffraction; DFT; molecular orbital calculations; fluorescence; docking; nNOS; fluorescent ligand

Online: 14 December 2018 (11:41:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints201801.0204.v1

Formation of Deformation-Induced Products in a Metastable β-titanium Alloy during High Temperature Compression

Alireza Samiee, Gilberto Casillas, Mansur Ahmed, Dmytro G. Savvakin, Ryan Naseri, Elena Pereloma

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: metastable Ti alloy; high temperature deformation; stress-induced ω; stress-induced α˝ martensite; transmission electron microscopy; slip; X-ray diffraction.

Online: 22 January 2018 (17:17:03 CET)

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Preprint ARTICLE | doi:10.20944/preprints202410.0991.v1

Assessing the 9G Technology Blood Test for Predicting Lung Cancer in Patients with CT-Detected Lung Nodules: A Multicenter Clinical Trial

So Yeon Kim, Young Sik Park, In Ae Kim, Hee Joung Kim, Kye Young Lee

Subject: Biology And Biotechnology, Biology And Life Sciences Keywords: lung nodule; chest CT; biomarker; 9G technology; lung cancer

Online: 15 October 2024 (11:50:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202110.0352.v1

Economic Impact of SARS-COV2 Infection in the Department of Diagnostic Imaging

Massimo Cristofaro, Ada Petrone, Fabrizio Albarello, Federica Di Stefano, Nicoletta Fusco, VIncenzo Schininà, Stefania Ianniello, Paolo Campioni

Subject: Medicine And Pharmacology, Epidemiology And Infectious Diseases Keywords: COVID-19; Diagnostic imaging; Chest; CT-scan; Radiation Dose

Online: 25 October 2021 (12:56:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202401.0965.v2

Synthesis, Crystal Structure, and Electrochemistry of Mono- and Bis-Homoannular Ferrocene Derivatives

Uttam R. Pokharel, Derek Daigle, Stone Naquin, Gwyneth Engeron, Mary Lo, Frank R. Fronczek

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: 1,2-(α -ketotetramethylene)-ferrocene; 1,2-(tetramethylene)-ferrocene; ferrocene; Friedel-Crafts acylation; Clemmensen reduction; X-ray crystallography; planar chirality; puckering parameters; electrochemistry

Online: 29 January 2024 (04:43:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints202007.0274.v1

Growth and Characterization of Polycrystalline Silicon Thin Films for Photocatalytic Splitting of Water in Oxide-Si Tandem Cells

Ali Zahid, Umer Zahid, Aamir Hasan, Muhammad Khuldoon

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: tandem cells; magnetron sputtering; Raman Spectroscopy; X-Ray Diffraction; silicon deposition; Optical Transmission Spectroscopy; photocatalytic conversion; hydrogen production; post-sputtering treatments

Online: 13 July 2020 (00:33:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.0500.v1

Angiographic Correlation of Angina Topography in Patients Presenting with Acute Myocardial Infarction (AMI) -Can the Location of Angina Predict the Site of Coronary Artery Occlusion? – The ACOLYTE Study

Kamal Sharma, Ashwati Konat, Poojan Prajapati, Kavya Darji, Shalin Rawal, Vatsa Bhavsar, Prahar Darji, Yashrajsinh Gohil, Masum Patel, Shubham Patel, Parjanya Bhatt, Yashvi Pethani, Stuti Shah, Hardik Desai

Subject: Medicine And Pharmacology, Cardiac And Cardiovascular Systems Keywords: Chest Pain; Angina; Acute Coronary Syndrome; Angina Topography; STEMI; NSTEMI

Online: 7 August 2024 (10:34:00 CEST)

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Preprint REVIEW | doi:10.20944/preprints202405.1350.v1

Smear Classification of Cardiopulmonary Resuscitation Techniques and Devices

Muhammad Feras Iftikhar, Linta Iftikhar, Shahzad Hassan, Muhammad Iftikhar Hanif

Subject: Medicine And Pharmacology, Cardiac And Cardiovascular Systems Keywords: ; cardiopulmonary resuscitation; techniques and devices classification; chest compression ;

Online: 21 May 2024 (07:09:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.0171.v1

A Multichannel CT and Radiomics-Guided CNN-ViT (RadCT-CNNViT) Ensemble Network for Diagnosis of Pulmonary Sarcoidosis

Jianwei Qiu, Jhimli Mitra, Soumya Ghose, Camille Dumas, Jun Yang, Brion Sarachan, Marc A. Judson

Subject: Public Health And Healthcare, Other Keywords: pulmonary sarcoidosis; chest CT; radiomics; ensemble network; vision transformer; CNN

Online: 3 May 2024 (07:31:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.1818.v1

Assessing Chest Pain Management and Outcomes in Percutaneous Coronary Intervention Patients: A Retrospective Analysis in Saudi Arabian Emergency Departments

Tahani Alrougi, Abdulellah Al Thobaity

Subject: Medicine And Pharmacology, Cardiac And Cardiovascular Systems Keywords: Chest Pain; Percutaneous Coronary Intervention; Outcomes; Cardiovascular Disease; Emergency Department

Online: 28 August 2023 (09:23:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.2032.v1

Radiological and Functional Pulmonary Evolution in Post-COVID-19 Patients: An Observational Study

Virgínia Maria Cavallari Strozze Catharin, Tereza Laís Menegucci Zutin, ELEN LANDGRAF GUIGUER, ADRIANO CRESSONI ARAÚJO, Lucas Fornari Laurindo, EDUARDO CHAGAS, Cássia Fernanda Gasparotti Zorzetto, PATRÍCIA BUENO, Manoela Dos Santos Bueno, Vitor Cavallari Strozze Catharin, HERON FERNANDO DE SOUZA GONZAGA, Sandra Maria Barbalho

Subject: Public Health And Healthcare, Public Health And Health Services Keywords: COVID-19; post-COVID-19; pulmonary manifestations; spirometry; chest tomography.

Online: 28 July 2023 (12:48:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0755.v1

AFEX-Net: Adaptive Feature EXtraction CNN for Classifying CT Images

Roxana Zahedi Nasab, Hadis Mohseni, Mahdieh Montazeri, Fahimeh Ghasemian, Sobhan Amin

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: Convolutional neural network; Chest CT images; Classification; Adaptive Feature Extraction

Online: 12 June 2023 (04:29:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.1945.v1

Dual-Phase High Entropy Alloy for High-Temperature Application

Michael Lastovich, Sodiq Abiodun Kareem, Michael Bodunrin, Christopher Rock, Bharat Gwalani

Subject: Engineering, Metallurgy And Metallurgical Engineering Keywords: high entropy alloys; alloy design; high temperature properties; order-disorder transformations; Gleeble; in situ X-Ray diffraction; DSC; precipitation strengthening; compression; rollability

Online: 24 July 2024 (13:10:07 CEST)

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Preprint SHORT NOTE | doi:10.20944/preprints202309.0671.v1

(3-(4-chlorophenyl)-4,5-dihydroisoxazol-5-yl)methyl Benzene-Sulfonate

Loubna Mokhi, Karim Chkirate, Xiaodong Zhang, Mohsine Driowya, Khalid Bougrin

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: Green strategy; One-pot reaction; isoxazoline sulfonate; Ultrasound cavitation; X-ray single-crystal structure analysis; Hydrogen bond; Hirshfeld surface analysis; DFT calculation.

Online: 11 September 2023 (09:58:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.0516.v1

Context-Based Synthesis of Unmeasurable Signals before Attenuation in Line-Scan X-ray Transmission

Tianzhong Xiong, Wenhua Ye

Subject: Engineering, Mining And Mineral Processing Keywords: context-based synthesis of unmeasurable signal; line-scan dual-energy X-ray transmission; vertical and horizontal anisotropy; difference of synthesis; real-time

Online: 8 May 2023 (10:28:04 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints202210.0383.v2

Pioneering Organelle Structural Biology: Golgi Apparatus Dysfunction in Parkinson’s Disease, Neurodevelopmental Disorders, and Cancer

Daniel Gómez

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: structural biology; organelles; Golgi Apparatus (GA); Parkinson’s disease (PD); cryo-ET; alpha-synuclein; neurodegenerative diseases; soft X-ray tomography (SXT); cancer; NDDs

Online: 5 December 2022 (02:27:26 CET)

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Preprint ARTICLE | doi:10.20944/preprints202011.0285.v1

Anti-Arthritic Effect of Chicken Embryo Tissue Hydrolyzate Against Adjuvant Arthritis in Rats (X-Ray Microtomographic and Histopathological Analysis)

Igor Rzhepakovsky, Svetlana Avanesyan, Mehmet Benlidayi, Kunaal Dhingra, Alexander Dolgalev, Natella Enukashvily, Tilman Fritsch, Stanislav Kochergin, Marina Sizonenko, Lyudmila Timchenko, Marco Vukovic, Sergey Piskov, Wolf-Dieter Grimm

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: chicken embryo tissue; hydrolyzate; food-derived bioactive peptides; adjuvant arthritis; anti-arthritic effect; in vitro and in vivo assays; X-ray microtomography

Online: 9 November 2020 (16:59:46 CET)

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Preprint ARTICLE | doi:10.20944/preprints201810.0535.v1

Metal Body Armour: Biomimetic Engineering of Lattice Structures ^†

Anton du Plessis, C. Broeckhoven

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: biomimicry; biomimetic engineering; energy absorption; lattice structure; additive manufacturing; powder bed fusion; X-ray tomography; microCT; non-destructive testing; 3D image analysis

Online: 23 October 2018 (10:10:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.0416.v1

Study of the Nearby Source Based on Cosmic Ray Nuclear Spectra and Anisotropy

Aifeng Li, Fangheng Zhang, Wei Liu, Zhaodong Lv, Dongyue Liang, Xiangqu Chen

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: galatic cosmic rays; nearby source; cosmic ray anisotropy; cosmic ray spectra

Online: 7 November 2023 (08:28:00 CET)

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Preprint REVIEW | doi:10.20944/preprints202402.1669.v1

Successful Needle Aspiration of a Traumatic Pneumothorax: a Case Report and Literature Review.

Giuseppe Bettoni, Silvia Gheda, Michele Altomare, Stefano Piero Bernardo Cioffi, Davide Ferrazzi, Michela Cazzaniga, Luca Bonacchini, Stefania Cimbanassi, Paolo Aseni

Subject: Medicine And Pharmacology, Emergency Medicine Keywords: pneumothorax; needle aspiration; traumatic pneumothorax; chest aspiration; conservative treatment; emergency department

Online: 29 February 2024 (10:36:17 CET)

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Preprint REVIEW | doi:10.20944/preprints202404.1713.v1

A Comprehensive Review of Fragile X Syndrome and Fragile X Premutation Associated Conditions in Africa

Chioma N.P. Mbachu, Ikechukwu Mbachu, Randi Hagerman

Subject: Medicine And Pharmacology, Clinical Medicine Keywords: Fragile X syndrome; Fragile X premutation associated conditions; Africa

Online: 26 April 2024 (08:15:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.0077.v1

Grain Structure Engineering in Screen-Printed Silver Flake-Based Inks for High-Temperature Printed Electronics Applications

Arjun Wadhwa, Mohammad Saadati, Jaime Benavides Guerrero, Martin Bolduc, Sylvain G Cloutier

Subject: Chemistry And Materials Science, Electronic, Optical And Magnetic Materials Keywords: Printed electronics; Screen Printing; high temperature inks; silver flake inks; grain boundary pinning; Zener effect; electron backscattered diffraction (EBSD); X-ray photoelectron spectroscopy (XPS)

Online: 3 September 2024 (05:36:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1001.v1

In Vitro Antibacterial Activities of Sodium Phenyl Dithiocarbamate Crystal with Its Corresponding oxovanadium(IV) and zinc(II) Coordination Compounds

Ayodele Temidayo Odularu, Peter Adewale Ajibade, Eric C. Hosten

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: in vitro antibacterial studies; one-pot synthesis; oxovanadium(IV) and zinc(II) coordination compounds of mixed ligands; single crystal x-ray crystallography; spectroscopic studies

Online: 14 August 2024 (12:23:38 CEST)

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Preprint REVIEW | doi:10.20944/preprints202007.0489.v1

Putting the Squeeze on Molecule-Based Magnets: Exploiting Pressure to Develop Magneto-Structural Correlations in Paramagnetic Coordination Compounds

Euan Brechin, Alvaro Etcheverry-Berrios, Simon Parsons, Konstantin Kamenev, Michael Probert, Stephen Moggach, Mark Murrie

Subject: Chemistry And Materials Science, Inorganic And Nuclear Chemistry Keywords: High pressure X-ray crystallography; high pressure magnetometry; high pressure absorption spectroscopy; high pressure EPR; molecule-based magnets; single-molecule magnets; single-ion magnets

Online: 21 July 2020 (12:48:58 CEST)

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The cornerstone of molecular magnetism is a detailed understanding of the relationship between structure and magnetic behaviour, i.e. the development of magneto-structural correlations. Traditionally, the synthetic chemist approaches this challenge by making multiple compounds that share a similar magnetic core but differ in peripheral ligation. Changes in the ligand framework induce changes in the bond angles and distances around the metal ions which are manifested in changes to magnetic susceptibility and magnetisation data. This approach requires the synthesis of series of different ligands and assumes that the chemical/electronic nature of the ligands and their coordination to the metal, the nature and number of counter ions and how they are positioned in the crystal lattice, and the molecular and crystallographic symmetry have no effect on the measured magnetic properties. In short, the assumption is that everything outwith the magnetic core is innocent, which is a huge oversimplification. The ideal scenario would be to have the same complex available in multiple structural conformations, and this is something that can be achieved through the application of external hydrostatic pressure, correlating structural changes observed through high pressure single crystal X-ray crystallography with changes observed in high pressure magnetometry, in tandem with high pressure inelastic neutron scattering (INS), high pressure electron paramagnetic resonance (EPR) spectroscopy and high pressure absorption/emission/Raman spectroscopy. In this review, which summarises our work in this area over the last 15 years, we show that the application of pressure to molecule-based magnets can (reversibly): (1) lead to changes in bond angles, distances and Jahn-Teller orientations; (2) break and form bonds; (3) induce polymerisation/depolymerisation; (4) enforce multiple phase transitions; (5) instigate piezochromism; (6) change the magnitude and sign of pairwise exchange interactions and magnetic anisotropy and (7) lead to significant increases in magnetic ordering temperatures.

Preprint REVIEW | doi:10.20944/preprints202005.0234.v1

Epidemiological Challenges in Pandemic Coronavirus Disease (COVID-19): Role of Artificial Intelligence

Abhijit Dasgupta, Abhisek Bakshi, Srijani Mukherjee, Kuntal Das, Soumyajeet Talukdar, Pratyayee Chatterjee, Sagnik Mondal, Puspita Das, Subhrojit Ghosh, Archisman Som, Pritha Roy, Rima Kundu, Akash Sarkar, Arnab Biswas, Karnelia Paul, Sujit Basak, Krishnendu Manna, Chinmay Saha, Satinath Mukhopadhyay, Nitai P. Bhattacharyya, Rajat K. De

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: SIRD; Twitter; GHSI; Pre-symptomatic; EHR; Contact tracing; On-line survey; qRT-PCR; X-ray; CT/HRCT; CNN; Autoencoder; Drug affinity; CPI; and Inflation.

Online: 14 May 2020 (11:25:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.1857.v1

Effect of Chest Physiotherapy with Threshold Valve in Hospitalized Adults with COVID-19 Pneumonia

Julia Estela, Emilio José Sánchez, Georgina Mateu, Elena Fernandez, Eva Robert, Silvia Pozo, Mariona Noray, Joan Carles Oliva, Fernanda Caballero, Manel Luján

Subject: Medicine And Pharmacology, Pulmonary And Respiratory Medicine Keywords: COVID-19; pneumonia; hospitalized patients; chest physiotherapy; positive expiratory pressure; threshold valve

Online: 27 July 2023 (07:24:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202102.0481.v1

Anxiety-Driven Cardiopulmonary Complaints during COVID-19 Pandemic Outbreak

Ofir Koren, Saleem Rajab, Mohammad Barbour, Moriah Shachar, Amit Shahar, Khaled Zubidat, Wasim Slim, Daher Igbariya3, Ehud Rozner, Yoav Turgeman, Einat Mader

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: Anxiety, Depression; Chest Pain; Covid-19; Dyspnea; Emergency Department; Coronavirus; Decision-Making.

Online: 22 February 2021 (15:19:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints202410.0442.v1

Impact of Soot on Internal Combustion Engine Lubrication – Oil Condition Monitoring, Tribological Properties and Surface Chemistry

Adam Agocs, Marcella Frauscher, Andjelka Ristic, Nicole Doerr

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: Soot; oil degradation; internal combustion engine; diesel engine; wear; antiwear additive; zinc dialkyl-dithiophosphate (ZDDP); high-resolution mass spectrometry; tribofilm; x-ray photoelectron spectroscopy (XPS)

Online: 8 October 2024 (11:08:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.0744.v1

Influence of Glycerol on the Surface Morphology and Crystallinity of Polyvinyl Alcohol Films

Ganna Kovtun, David Casas, Teresa Cuberes

Subject: Chemistry And Materials Science, Nanotechnology Keywords: polyvinyl alcohol films pva/glycerol blends; crystallinity; infrared spectroscopy; x-ray diffraction; thermogravimetry; differential thermal analysis; atomic force microscopy; lateral force microscopy; ultrasonic force microscopy

Online: 12 June 2024 (14:07:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0234.v1

Microstructural and Hydrophilic Properties of Polylactide Polymer Samples with Various 3D Printing Patterns

Aleksandr S. Lenshin, Vera E. Frolova, Sergey V. Kannykin, Evelina P. Domashevskaya

Subject: Physical Sciences, Applied Physics Keywords: polylactide (Polylactic Acid-PLA); 3D printing model drawings; X-ray phase state; partial crystallization; stable phase of ᾳ-Poly(L-lactide); IR spectra; surface wetting

Online: 3 April 2024 (08:14:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.0500.v1

Nanostructural Characterization of Luminescent Polyvinyl Alcohol / Graphene Quantum Dots Nanocomposite Films

Dhanumalayan Elumalai, B. Rodríguez, G. Kovtun, P. Hidalgo, B. Méndez, S. Kalleemula, G. M. Joshi, M. T. Cuberes

Subject: Chemistry And Materials Science, Nanotechnology Keywords: Polyvinyl Alcohol; Graphene Quantum Dots; Atomic Force Microscopy; Ultrasonic Force Mi-croscopy; Friction Force Microscopy; Photoluminescence; X-Ray Difraction; Infrared Spectroscopy; Thermogravimetry; Differential Thermal Analysis

Online: 8 November 2023 (07:37:55 CET)

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Preprint ARTICLE | doi:10.3390/sci2020046

Portable XRF Quick-Scan Mapping for Potential Toxic Elements Pollutants in Sustainable Urban Drainage Systems: A Methodological Approach

Guri Venvik, Floris Boogaard

Subject: Environmental And Earth Sciences, Environmental Science Keywords: portable X-ray fluorescence spectrometer (pXRF); Potential Toxic Elements (PTE); lead (Pb), zinc (Zn); copper (Cu); topsoil; sustainable urban drainage systems; SuDS; LID; BMPs; WSUD; GI; SCMs

Online: 13 June 2020 (00:00:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0236.v2

Specificity of Escherichia coli Heat-Labile Enterotoxin Investigated by Single-Site Mutagenesis and Crystallography

Julie E. Heggelund, Joel B. Heim, Gregor Bajc, Vesna Hodnik, Gregor Anderluh, Ute Krengel

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: bacterial toxin; cholera toxin; Escherichia coli heat-labile enterotoxin; lectin; N-acetyllactosamine binding; neutral glycosphingolipids; protein-carbohydrate interactions; surface plasmon resonance spectroscopy; X-ray crystal structure

Online: 28 January 2019 (15:23:24 CET)

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Preprint CASE REPORT | doi:10.20944/preprints202401.2106.v1

Application of X-STRs for Forensic Identification in Mixed DNA Profile: A Case Report

Nunzia Ilaria Vacca, Giacoma Mongelli, Stefania Ceccardi, Vincenzo Agostini

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: X-Chromosomal markers; X-STRs; DNA; mixture; Forensic genetics; Case Report

Online: 30 January 2024 (12:49:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints201909.0069.v1

On The Extension of Compton's Experiment: A Theoretical Investigation

Amal Pushp Fras

Subject: Physical Sciences, Atomic And Molecular Physics Keywords: Compton Scattering, Gamma Ray Spectroscopy

Online: 6 September 2019 (09:35:13 CEST)

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Preprint CASE REPORT | doi:10.20944/preprints202103.0192.v1

Radial Extracorporeal Shock Wave Therapy to Support Breathing in Case of Coronavirus Disease 2019 (COVID-19): A Case Report

Peter Stiller, Christoph Schmitz

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: COVID-19; shortness of breath; chest pain; radial extracorporeal shock wave therapy; rESWT

Online: 5 March 2021 (17:02:02 CET)

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Preprint ARTICLE | doi:10.20944/preprints202010.0298.v2

Cosmic Ray Extremely Distributed Observatory

Piotr Homola, Dmitriy Beznosko, Gopal Bhatta, Łukasz Bibrzycki, Łukasz Bratek, Michalina Borczyńska, Nikolay M. Budnev, Dariusz Burakowski, David Edwin Alvarez-Castillo, Kevin Almeida Cheminant, Aleksander Ćwikła, Punsiri Dam-o, Niraj Dhital, Alan Duffy, Piotr Głownia, Krzysztof Gorzkiewicz, Dariusz Góra, Alok C. Gupta, Zuzana Hlávková, Martin Homola, Joanna Jałocha, Robert Kamiński, Michał Karbowiak, Marcin Kasztelan, Renata Kierepko, Marek Knap, Péter Kovács, Szymon Kuliński, Bartosz Łozowski, Marek Magryś, Mikhail V. Medvedev, Justyna Mędrala, Jerzy W. Mietelski, Justyna Miszczyk, Alona Mozgova, Antonio Napolitano, Vahab Nazari, Y. Jack Ng, Michał Niedźwiecki, Cristina Oancea, Bogusław Ogan, Gabriela Opiła, Krzysztof Oziomek, Maciej Pawlik, Marcin Piekarczyk, Bożena Poncyljusz, Jerzy Pryga, Matías Rosas, Krzysztof Rzecki, Jilberto Zamora-Saa, Katarzyna Smelcerz, Karel Smolek, Weronika Stanek, Jarosław Stasielak, Slawomir Stuglik, Jolanta Sulma, Oleksandr Sushchov, Manana Svanidze, Kyle Tam, Arman Tursunov, José-M. Vaquero, Tadeusz Wibig, Krzysztof W. Woźniak

Subject: Physical Sciences, Nuclear And High Energy Physics Keywords: cosmic rays; cosmic ray ensembles; extensive air showers; large scale cosmic ray correlations; CREDO Collaboration

Online: 15 October 2020 (16:13:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.1328.v1

Spectral Properties of Bistatic Radar Signals using the Ray Tracing Technique and a Facet Approach

Mingcheng Zuo, Rukiah S. MiItri, Igor Gai, Gancorrado Brighi, Paolo Tortora

Subject: Physical Sciences, Space Science Keywords: Bistatic Radar; Surface Roughness; Ray Tracing

Online: 21 May 2024 (17:22:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202307.0943.v1

Evaluating Structural Details Influence on Elastic Wave Propagation for Composite Structures via Ray Tracing

Fernando Sanchez Iglesias, Antonio Fernández López

Subject: Engineering, Aerospace Engineering Keywords: SHM; wave propagation; composites; ray tracing

Online: 14 July 2023 (05:34:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202406.1569.v1

Application of Methods Detecting Xenotransplantation-Relevant Viruses for Screening German Slaughterhouse Pigs

Hina Jhelum, Benedikt B. Kaufer, Joachim Denner

Subject: Biology And Life Sciences, Life Sciences Keywords: porcine viruses; xenotransplantation; virus safety; herpes viruses x porcine endogenous retroviruses x latency

Online: 24 June 2024 (12:03:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201807.0542.v1

Effect of Heat Stress on Yield, Monoterpene Content and Antibacterial Activity of Essential Oils of Mentha X Piperita Var. Mitcham and Mentha Arvensis Var. Piperascens

Milad Heydari, Anna Zanfardino, Alireza Taleei, Ali Akbar Shah-NejatBoushehri, Javad Hadian, Viviana Maresca, Sergio Sorbo, Michela Di Napoli, Mario Varcamonti, Adriana Basile, Daniela Rigano

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: Mentha x piperita; Mentha x arvensis; essential oils; heat stress; antibacterial activity; monoterpenes

Online: 27 July 2018 (14:04:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0261.v1

In-Hospital Rehabilitation of Patients with COVID-19: A Retrospective Study with Propensity Score Matching

Sergey M. Konev, Elisaveta S. Koneva, Teimurazi R. Matsonashvili, Ekaterina N. Zhumanova, Danil S. Malyutin, Natalia S. Serova, Evgeny E. Achkasov, Igor V. Semenyakin, Konstantin V. Lyadov, Irina A. Mandel, Andrey I Yaroshetskiy

Subject: Medicine And Pharmacology, Clinical Medicine Keywords: COVID-19; early rehabilitation; computed tomography; physical exercises; chest massage in an electrostatic field.

Online: 5 June 2023 (08:06:38 CEST)

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Preprint REVIEW | doi:10.20944/preprints202101.0575.v1

Feasibility Assessment of Wearable Respiratory Monitors for Ambulatory Inhalation Topography

Shehan Jayasekera, Edward Hensel, Risa Robinson

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: wearable respiratory monitors; smart garment; lung volume; respiratory inductance plethysmography; chest expansion; inhalation topography

Online: 27 January 2021 (21:27:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.1235.v1

Microplastic Contamination in Commercial Insect Meal: A Valid Analytical Method to Detect It

Simona Rimoldi, Jessica Ponti, Andrea Valsesia, Giulio Saroglia, Rita La Spina, Francesco Fumagalli, Genciana Terova

Subject: Biology And Life Sciences, Animal Science, Veterinary Science And Zoology Keywords: Aquaculture; Insect meal; Microplastics (MP); Nanoplastics (NP); Aquafeed; Raman microscopy; Transmission Electron Microscopy (TEM); Scanning Electron Microscope (SEM); Energy-dispersive X-ray spectroscopy (EDX); Fourier transform infrared (FTIR).

Online: 20 March 2024 (14:11:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints202105.0480.v1

A Biophysical Insight of Camptothecin Biodistribution: Towards a Molecular Understanding of Its Pharmacokinetic Issues

Andreia Almeida, Eduarda Fernandes, Bruno Sarmento, Marlene Lúcio

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: camptothecin; drug distribution; drug-membrane interaction; biophysical profiling; biomimetic models; partition coefficient; ADMET/PK prediction; small and wide-angle X-ray diffraction; fluorescence spectroscopy; human serum albumin (HSA)

Online: 20 May 2021 (10:52:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202408.1585.v1

Surface and Mineral Changes of Primary Enamel After Laser Diode Irradiation and Application of Remineralization Agents: A Comparative In Vitro Study

Mihaela-Valentina Cîrdei, Mădălin-Marius Margan, Roxana Margan, Alexandra Ban-Cucerzan, Ion Petre, Iosif Hulka, Razvan Mihai Horhat, Darinca Carmen Todea

Subject: Medicine And Pharmacology, Dentistry And Oral Surgery Keywords: low light laser therapy; DIAGNOdent; diode laser; fluoride varnish; casein phosphopeptide-amorphous calcium phosphate; energy dispersive X-ray spectroscopy (EDX); solubility of dental primary enamel; scanning electron microscope (SEM)

Online: 22 August 2024 (02:54:50 CEST)

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Aim: The purpose of this study is to evaluate the remineralization potential of primary teeth enamel after being exposed to different laser diode therapy. Methods: Ninety-six vestibular primary teeth enamel samples were divided into eight groups (n=12) with varying treatments: control (G1), CPP-ACP-fluoride varnish (G2), diode lasers at 980 nm (G3), 808 nm (G4), 450 nm (G5), 980 nm + CPP-ACP-fluoride varnish (G6), 808 nm + CPP-ACP-fluoride varnish (G7), and 450 nm + CPP-ACP-fluoride varnish (G8). Each sample was assessed using DIAGNOdent® at baseline, post-treatment, and post-pH cycle re-mineralization. SEM imaging was performed before and after treatment and following the pH cycle. Results: The results indicated that the 980 nm and 808 nm diode lasers, both alone and in combination with CPP-ACP-fluoride varnish, either maintained or increased the calcium (Ca) weight percentage (Wt%) in the enamel. The 980 nm diode laser combined with CPP-ACP-fluoride varnish (G6) showed a significant increase in Ca Wt%, suggesting a strong remineralization effect. Similarly, the 808 nm diode laser alone (G4) also promoted a substantial increase in Ca Wt%. In contrast, the 450 nm diode laser, whether applied alone or in combination with CPP-ACP-fluoride varnish, resulted in a lower Ca Wt% and an increase in phosphorus (P) Wt%. Most groups, except for the CPP-ACP-fluoride varnish alone (G2), demonstrated an increase in P Wt%, indicating a complex interaction between laser therapy and enamel remineralization. Conclusions: The combined use of laser therapy with CPP-ACP-fluoride varnish significantly enhanced the remineralization of temporary teeth enamel. The 980 nm diode laser + CPP-ACP-fluoride varnish showed the most pronounced improvement in remineralization, while the 808 nm diode laser alone also effectively increased calcium solubility. These findings suggest that higher wavelength diode lasers, particularly when combined with remineralizing agents, can effectively enhance the mineral content of primary teeth and promote enamel remineralization.

Preprint ARTICLE | doi:10.20944/preprints202202.0227.v1

On the Ray-Wavefront Duality

Antonio Diaz-Cano, Francisco Gonzalez-Gascon, Luis Sanchez-Soto

Subject: Physical Sciences, Optics And Photonics Keywords: geometrical optics; ray equation; eikonal equation; wavefronts

Online: 18 February 2022 (09:02:06 CET)

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Preprint ARTICLE | doi:10.20944/preprints202405.2119.v1

Circadian Rhythm and Sleep Analyses in a Fruit Fly Model of Fragile X Syndrome Using a Video-Based Automated Behavioral Research System

Sara MILOJEVIC, Arijit Ghosh, Vedrana Makevic, Maja STOJKOVIC, Maria CAPOVILLA, Dejan B. Budimirovic, Dragana Protic

Subject: Biology And Life Sciences, Behavioral Sciences Keywords: Drosophila melanogaster model of fragile X syndrome; FMR1 gene; Fragile X syndrome; Circadian rhythm; Sleep.

Online: 31 May 2024 (10:47:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0065.v1

Using Tandem-X Science Phase Observations to Extract Glacial Topography

Sang-Hoon Hong, Shimon Wdowinski, Falk Amelung, Hyun-Cheol Kim, Joong-Sun Won, Sang-Wan Kim

Subject: Environmental And Earth Sciences, Environmental Science Keywords: TanDEM-X; digital elevation model; TanDEM-X Science Phase; radar interferometry; Petermann Glacier; ambiguity height

Online: 3 October 2018 (17:21:00 CEST)

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Space-based Interferometric Synthetic Aperture Radar (InSAR) applications have been widely used to monitor the cryosphere over past decades. Because of temporal decorrelation, interferometric coherence often severely degrades on fast moving glaciers. In addition, higher sensitivity ambiguity occurs in large baseline configurations, which are needed for extracting topographic information over low relief areas such as the surface of a glacier. TerraSAR-X add-on for Digital Elevation Measurement (TanDEM-X) observations, which overcome the temporal decorrelation because of their simultaneous measurements by two satellite constellations, have used a short baseline sufficient for generation of excellent digital elevation models in most locations around the world. However, it remains difficult to estimate detailed topographic characteristics over low slope glacier surfaces because of the relatively less sensitive height ambiguity from the small baselines. In this study, we used the TanDEM-X pursuit monostatic mode with large baseline formation following a scientific phase timeline to develop highly sensitive topographic elevation models of the Petermann Glacier of Northwest Greenland. As expected, coherent interferometric phases (> 0.8) were well maintained over the glaciers despite their fast movement thanks to the nearly simultaneous TanDEM‐X measurements. The height ambiguity, which defined as the altitude difference correspondent to phase change of flattened interferogram, of the dataset was 10.63 m, which is favorable for extracting topography in a low relief region. We validated the TanDEM‐X derived glacial topography by comparing it to the SAR/Interferometric radar altimeter observations acquired by CryoSat‐2 and the IceBridge Airborne Topographic Mapper laser altimeter measurements. Both observations showed very good correlation within a few meters of the offsets (‐12.5 – ‐3.1 m) with respect to the derived glacial topography. Because of highly sensitive ambiguity, we could successfully extract detailed geomorphological features on the glaciers. Routine TanDEM-X observations will be very useful to better understand the dynamics of glacial movements and topographic change.

Preprint REVIEW | doi:10.20944/preprints202211.0542.v1

Lobe X of the Cerebellum: A Natural Neuro-resistant Region

Carlos Hernández-Pérez, Eduardo Weruaga, David Díaz

Subject: Biology And Life Sciences, Anatomy And Physiology Keywords: Cerebellum; lobe X; neurodegeneration; neuro-resistance

Online: 29 November 2022 (08:41:51 CET)

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Preprint REVIEW | doi:10.20944/preprints202203.0139.v1

CD15 and CD15s in The Anticancer Therapy

Wojciech Szlasa, Karol Wilk, Klaudia Knecht-Gurwin, Adam Gurwin, Anita Froń, Natalia Sauer, Jolanta Saczko, Tomasz Szydełko, Julita Kulbacka, Bartosz Małkiewicz

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: CD15; Lewis X; Lex; Cancer; Therapy

Online: 10 March 2022 (04:15:33 CET)

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Preprint ARTICLE | doi:10.20944/preprints202409.2355.v1

Existence of Two Solutions for $(p(x), Q(x))$-Laplacian

Rahmani Mostafa, Belhadj Karim, Zerouali Abdellah, Lakhdi Abdessamad

Subject: Computer Science And Mathematics, Computational Mathematics Keywords: Ekeland's variational principle; Elliptic equations; $(p(x); q(x))$-Laplacian; Mountain pass theorem; Steklov eigenvalue problem

Online: 30 September 2024 (05:35:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202409.1597.v1

New Tests on Lorentz Invariance Violation Using Energy-Resolved Polarimetry of Gamma-Ray Bursts

Jun-Jie Wei

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: gamma-ray bursts; astroparticle physics; gravitation; quantum gravity

Online: 20 September 2024 (07:10:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0687.v1

Comparative Analysis of Volatile Compounds of Gamma-Irradiated Mutants of Rose (Rosa hybrida)

Jaihyunk Ryu, Dong-Gun Kim, Jung Min Kim, Jae Il Lyu, Yeong Deuk Jo, Si-Yong Kang, Jin-Baek Kim, Sang Hoon Kim

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: Gamma-ray, Mutant, Rose, Volatile compounds, GC-MS

Online: 29 July 2020 (09:46:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1335.v1

Understanding the Interactions between Soft Segments in Polyurethanes: Structural Synergies in Blends of Polyester and Polycarbonate Diol Polyols

Yuliet Paez-Amieva, José Miguel Martín-Martínez

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: polyester polyol; polycarbonate diol polyol; polyols blends; van der Waals interactions; Infra-red spectroscopy; differential scanning calorimetry; thermal gravimetric analysis; contact angle; X-ray photoelectron spectroscopy; plate-plate rheology; self-adhesion

Online: 20 October 2023 (11:37:20 CEST)

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Preprint REVIEW | doi:10.20944/preprints202309.1372.v1

Harnessing Oleanolic Acid as A Modulator of Metabolic Nuclear Receptors

Mohamed O. Radwan, Sultan F. Kadasah, Salha M. Aljubiri, Abdulmajeed F. Alrefaei, Mahmoud H. El-Maghrabey, Mohamed A. El Hamd, Hiroshi Tateishi, Masami Otsuka, Mikako Fujita

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: oleanolic acid; nuclear receptors; metabolic disorders; NASH; farnesoid X receptor; liver X receptor; peroxisome-proliferator activated receptors

Online: 21 September 2023 (03:12:08 CEST)

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Preprint REVIEW | doi:10.20944/preprints202302.0177.v1

The Role of Inflammation in the Cellular and Molecular Mechanisms of Cardiopulmonary Complications of Sickle Cell Disease

Oluwabukola T Gbotosho, Jahnavi Gollamudi, Hyacinth I Hyacinth

Subject: Medicine And Pharmacology, Pathology And Pathobiology Keywords: Sickle cell disease; cardiopulmonary complications; inflammation; acute chest syndrome; cardiac hypertrophy; cardiac fibrosis; diastolic dysfunction; pulmonary hypertension

Online: 10 February 2023 (03:13:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints202303.0420.v7

A Common Approach to Three Open Problems in Number Theory

Apoloniusz Tyszka

Subject: Computer Science And Mathematics, Algebra And Number Theory Keywords: Brocard's problem; Brocard-Ramanujan equation x!+1=y^2; composite Fermat numbers; composite numbers of the form 2^(2^n)+1; Erd\"os' equation x(x+1)=y!

Online: 18 May 2023 (08:25:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202407.0915.v1

Screening and Characterization of DNA Aptamers for the Anti-Klebsiella pneumoniae Omp X Protein by the SELEX Method

Zhenxing Fan, Baihai Huang, Lei He, Yuting Lai, Yunwang Zhao, Meng Wang, Baolin Li, Shiqi Liao

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Omp X; DNA aptamers; Klebsiella pneumoniae; SELEX

Online: 11 July 2024 (04:52:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202405.1413.v1

Generation X and Boutique Hotels: An Exploratory Study

Tammie J Kaufman, Jessica Hoeschen

Subject: Business, Economics And Management, Other Keywords: Boutique Hotels; Generation X; Culinary Traveler; Marketing

Online: 21 May 2024 (16:14:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0268.v1

Covers of Finitely Generated Acts over Monoids

Xiaoqin Zhang, Tingting Zhao

Subject: Computer Science And Mathematics, Algebra And Number Theory Keywords: cover; coproduct; finitely generated; $\mathcal{X}$-precover

Online: 3 April 2024 (08:28:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.1844.v1

Normalized Clinical Severity Scores Reveal a Correlation between X Chromosome Inactivation and Disease Severity in Rett Syndrome

Jonathan K. Merritt, Xiaolan Fang, Raymond C. Caylor, Steven A. Skinner, Michael J. Friez, Alan K. Percy, Jeffrey L. Neul

Subject: Medicine And Pharmacology, Neuroscience And Neurology Keywords: Rett Syndrome, X Chromosome Inactivation, longitudinal modeling

Online: 29 March 2024 (10:27:34 CET)

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Preprint REVIEW | doi:10.20944/preprints202309.2077.v1

Illuminating Dersimelagon: A Novel Agent in the Treatment of Erythropoietic Protoporphyria and X-Linked Protoporphyria

Katelyn E Madigan, Sean R Rudnick, Matthew A Agnew, Numra Urooj, Herbert L Bonkovsky

Subject: Medicine And Pharmacology, Gastroenterology And Hepatology Keywords: Erythropoietic Protoporphyria; X-linked protoporphyria, oral, dersimelagon

Online: 29 September 2023 (05:48:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202010.0389.v1

The TanDEM-X Change DEM: the New Temporal DEM of the TanDEM-X Mission

Marie Lachaise, Markus Bachmann, Thomas Fritz, Martin Huber, Barbara Schweißhelm, Birgit Wessel

Subject: Engineering, Automotive Engineering Keywords: TanDEM-X Mission; Change DEM; delta-phase

Online: 19 October 2020 (14:53:16 CEST)

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