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31 results for “Physical Characterization”
Dataset of 'Complete flow characterization from snapshot PIV, fast probes and physics-informed neural networks'
<p>Dataset of the article 'Complete flow characterization from snapshot PIV, fast probes and physics-informed neural networks' (https://doi.org/10.1016/j.cma.2023.116652). The codes processing data here are on https://github.com/AlvaroMS90/Complete-flow-characterization-from-snapshot-PIV-fast-probes-and-physics-informed-neural-networks.</p> <p>This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement No 949085) and by MCIN/AEI /10.13039/501100011033 and the European Union ‘NextGenerationEU/PRTR’ as part of the grant FJC2020-044342-I.</p>
Dataset for a physical model characterizing visualization of the cervix during pelvic exams
<p>This dataset accompanies our manuscript draft: <em>A physical model for improving visualization of the cervix during pelvic exams: A steppingstone towards reducing disparities in women's health</em>.</p> <p><strong>Manuscript Draft Abstract</strong></p> <p>Pelvic exams are frequently complicated by collapse of the lateral vaginal walls, obstructing the physician’s view of the cervix. A commonly utilized method in the clinical setting, passed down from mentors to trainees, is repurposing either a condom or a glove as a sheath placed over the speculum blades to retract the lateral vaginal walls during the exam. Despite their regular use in clinical practice, little research has been done comparing the relative efficacy of these methods. Better visualization of the cervix can benefit patients by decreasing examination-related discomfort, aiding in cancer screening, and preventing the need to move the examination to the operating room under general anesthesia.</p> <p>This study presents a physical model that simulates vaginal pressure being exerted around a speculum. Using it, we then compare the efficacy of different condom types, glove materials, glove sizes, and methods of application onto the speculum.</p> <p>The results showed that condoms provided minimal lateral wall retraction, while vinyl-material gloves with the speculum placed into the third finger had the best lateral wall retraction. However, the nitrile-material gloves are overall preferred over the vinyl gloves as they provided adequate lateral wall retraction without applying a significant vertical compressive effect on the speculum, and thus had overall better cervical visualization. Glove size had minimal impact.</p> <p>This study serves as a guide for clinicians as they use tools commonly found in a clinical setting to perform difficult pelvic exams. We recommend that clinicians consider the use of a nitrile glove as a sheath around a speculum. Additionally, this study demonstrates proof-of-concept of a physical model that can quantitatively describe different materials on their ability to improve cervical visualization. This model can be used in future research with more speculum and material combinations, including with materials custom-designed materials for this purpose.</p>
The dataset for publication "Characterization of scintillating materials in use for brachytherapy fiber based dosimeters" by S. Commeti, et al., Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2022.
<p>This dataset is related to paper journal paper with DOI: <a href="http://dx.doi.org/10.1016/j.nima.2022.167083">10.1016/j.nima.2022.167083</a>.</p> <p>The dataset contains raw txt file and matlab files on the transmittance and the attenuation of Gadox and YVO specimens. </p> <p>Data files were prepared by agnieszka.gierej@vub.be</p>
Morphological and physical chemical characterization of main agricultural plastics articles used for protected cultivation systems during ageing in fields, and collection practices
<p>This dataset includes data generated upon the implementation of the ST 1.2.1 "Analysis of degradation and fragmentation of AP and transfer of MNP to soil". The activities dealt with the study of degradation and fragmentation from weathering and agricultural practices of conventional and biodegradable AP relevant for transfer of MNP to soil (during both use and end of life). In particular, the experimental data refer to characterization of biodegradable mulch films, pristine (coded M-BIO0) or subjected to photo-oxidative weathering (M-BIO192), as well as the same samples buried in soil for varying time periods, up to 353 days. The folders included contain gel permeation chromatography (GPC) and Matrix-assisted Laser Desorption Ionization (MALDI-TOF) data, which account for the change in film molecular weight upon soil burial. Furthermore, Differential Scanning Calorimetry (DSC) data and Scanning Electron Microscopy (SEM) and Water Contact Angle (WCA) images of some selected samples are also provided. The folder named MS RAW FILES.zip includes all the mass spectrometry raw data.</p>
Physical characterization of agricultural plastic mulching films
<p>The excel file regards the radiometric properties of the source material mulching films. The radiometric tests were carried out at the University of Bari. The mulching films were used for the generation of microplastic test materials. The Italian mulching films were buried at the experimental field at the University of Bari.</p>
Physical and technical characterization of main agricultural plastics articles used for protected cultivation systems
<p>The folder "Thermal and spectroscopic data on the characterization of mulch films.rar" includes differential scanning calorimetry (DSC), thermogravimetry (TG), Fourier-transform infrared spectroscopy (FTIR), and water contact angle (WCA) raw data and images relevant to the characterization of conventional and biodegradable mulch films. 7 mulching films consisting of 3 different conventional linear low-density polyethylene (LLDPE, coded as PE) films and 4 different biodegradable (PBAT-based, coded as BIO) films are analysed.In particular, data regarding M-BIOIT-15-black-0, M-PEIT-15-black-0, M-BIOEL-15-black-0, M-PEEL-15-black-0, M-PEEL-50-transparent-0, M-BIODE-30-black-0 and M-BIOFI-15-black-0 are included.</p>
Dataset of the paper "An Empirical Characterization of Software Bugs in Open-Source Cyber-Physical Systems"
<p><br> #Dataset Package for the paper "An Empirical Characterization of Software Bugs in Open-Source Cyber-Physical Systems"</p> <p><br> Description of the content:</p> <p><br> 1) "1_RQ-CPS-bugs-Taxonomy" folder contains all the main experimental data concerning the issues sampled and analyzed from all the Projects considered in the study,<br> including row-data on the taxonomy validtion steps.<br> <br> - Under "the sub-folder "1_Taxonomy-Raw-data" are reported the row-data concerning the taxonomy validtion steps </p> <p><br> 2) "2_Scripts" contains all scripts used to generate the issue data and sampled issue raw-data in the previous folders: </p> <p><br> - "setup.md" file in the folder describes how to set=up and run the script used for collecting and sampling the issues for the validation steps:<br> <br> - runJSONtoCSV.sh<br> - JSONtoCSV.py<br> - generateListOfAllSamples.py<br> - generateAllSamples.r<br> <br> Under "the sub-folder "1_Scripts/1_Data_Collection":<br> <br> <br> 3) "3_Final Taxonomy" folder contains the final Table representation (also reported in the previous folder) and main figures of the CPSs Bugs Taxonomy.</p>
Figure 6. Caspase 3 in Physical characterization and wound healing properties of Zamzam water
Figure 6. Caspase 3 levels of treatment groups. ***Extremely high significant at p <0.001 when compared to Group 1; **Highly significant lesser at p <0.01 on comparing with Group 2; ns: nonsignificant when compared to group 3 at p <0.05. Group 1: Normal control; Group 2: Disease control (wound without treatment); Group 3: Standard control (treatment with povidoneiodine cream); Group 4: Zamzam water treatment group.
Figure 7. A comparative wound healing study. A1 in Physical characterization and wound healing properties of Zamzam water
Figure 7. A comparative wound healing study. A1: Control animals, dorsal view of wound soon after creating on the 1st day; B1: Dorsal view of the wound after treating with povidone-iodine cream on 3rd day; C1: Dorsal view of the wound after treating with Zamzam water on 3rd day; A2: Control animals, dorsal view of the wound on 6th day; B2: Dorsal view of the wound after treating with povidoneiodine cream on 6th day; C2: Dorsal view of the wound after treating with Zamzam water on 6th day; A3: Control animals, dorsal view of the wound on 12th day; B3: Dorsal view of the wound after treating with povidone-iodine cream on 12th day; C3: dorsal view of the wound after treating with Zamzam water on 12th day.
Figure 2. Serum IL-1 in Physical characterization and wound healing properties of Zamzam water
Figure 2. Serum IL-1β level of treatment groups. *Significantly lesser at p <0.05 on comparing with Group 2; **Highly significant lesser at p <0.01 on comparing with group 2; ns: nonsignificant when compared to Group 3. Group 1: Normal control; Group 2: Disease control (wound without treatment); Group 3: Standard control (treatment with povidone-iodine cream); Group 4: Zamzam water treatment group.
Figure 1 in Physical characterization and wound healing properties of Zamzam water
Figure 1. Zeta potential analysis of Zamzam water. (A) Before exposure to open-air; (B) After exposure to open-air.
Figure 3. Serum IL-6 in Physical characterization and wound healing properties of Zamzam water
Figure 3. Serum IL-6 level of treatment groups. ***Extremely high significant at p <0.001; **Extremely significant at p <0.01 on comparing with Group 2; ns: nonsignificant when compared to Group 3. Group 1: Normal control; Group 2: Disease control (wound without treatment); Group 3: Standard control (treatment with povidone iodine cream); Group 4: Zamzam water treatment group.
Figure 5. Caspase 9 in Physical characterization and wound healing properties of Zamzam water
Figure 5. Caspase 9 levels of treatment groups. ***Extremely high significant at p <0.001 when compared to Group 1; **Significantly lesser at p <0.01 on comparing with Group 2; ns: nonsignificant on comparing with group 3 at p <0.05. Group 1: Normal control; Group 2: Disease control (wound without treatment); Group 3: Standard control (treatment with povidone-iodine cream); Group 4: Zamzam water treatment group.
Geochemical and physical characterization of lithic raw materials in the Olduvai Basin, Tanzania
<p>The invention and proliferation of stone tool technology in the Early Stone Age (ESA) marks a watershed in human evolution. Patterns of lithic procurement, manufacture, use, and discard have much to tell us about ESA hominin cognition and land use. However, these issues cannot be fully explored outside the context of the physical attributes and spatio-temporal availability of the lithic raw materials themselves. The Olduvai Basin of northern Tanzania, which is home to both a wide variety of potential toolstones and a rich collection of ESA archaeological sites, provides an excellent opportunity to investigate the relationship between lithic technology and raw material characteristics. Here, we examine two attributes of the basin's igneous and metamorphic rocks: spatial location and fracture predictability. A total of 244 geological specimens were analyzed with non-destructive portable XRF (pXRF) to determine the geochemical distinctiveness of five primary and secondary sources, while 110 geological specimens were subjected to Schmidt rebound hardness tests to measure fracture predictability. Element concentrations derived via pXRF show significant differences between sources, and multivariate predictive models classify geological specimens with 75–80% accuracy. The predictive models identify Naibor Soit as the most likely source for a small sample of three lithic artifacts from Bed II, which supports the idea that this inselberg served as a source of toolstone during the early Pleistocene. Clear patterns in fracture predictability exist within and between both sources and rock types. Fine-grained volcanics show high rebound values (associated with high fracture predictability), while finer-grained metamorphics and coarsegrained gneisses show intermediate and low rebound values, respectively. Artifact data from Bed I and II suggest that fracture predictability played a role in raw material selection at some sites, but other attributes like durability, expediency, and nodule size and shape were more significant.</p>
Supporting Data of Bonadonna et al. "Physical Characterization of Long-Lasting Hybrid Eruptions: the Tajogaite Eruption of Cumbre Vieja (La Palma, Canary Islands)"
<p>Data on plume height, volcanic tremor, deposit thinning and lava emissions of Bonadonna et al. "Physical Characterization of Long-Lasting Hybrid Eruptions: the Tajogaite Eruption of Cumbre Vieja (La Palma, Canary Islands)"</p>
Photo-physical characterization of high triplet yield brominated fluoresceins by transient state (TRAST) spectroscopy
<p><strong>This folder contains all raw data underlying the results presented in a manuscript, submitted for publication to <em>Methods and Applications in Fluorescence</em>, and entitled:</strong></p> <p> </p> <p><strong>Photo-physical characterization of high triplet yield brominated fluoresceins by transient state (TRAST) spectroscopy</strong></p> <p> </p> <p><strong>Authored by:</strong></p> <p>Baris Demirbay<sup>a</sup>, Glib Baryshnikov<sup>b</sup>, Martin Haraldsson<sup>c</sup>, Joachim Piguet<sup>a</sup>, Hans Ågren<sup>d</sup>, Jerker Widengren<sup>a,*</sup></p> <p> </p> <p><sup>a</sup>Royal Institute of Technology (KTH), Experimental Biomolecular Physics, Department of Applied Physics, Albanova University Center, SE-106 91, Stockholm, Sweden</p> <p><sup>b</sup>Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-60174, Norrköping, Sweden</p> <p><sup>c</sup>Chemical Biology Consortium Sweden, Science for Life Laboratory, Department of Medical Biochemistry and Biophysics, Karolinska Institute, SE-171 77 Stockholm, Sweden</p> <p><sup>d</sup>Department of Physics and Astronomy, Uppsala University, SE-751 20 Uppsala, Sweden</p> <p> </p> <p>*Corresponding Author:</p> <p> Email: <a href="mailto:jwideng@kth.se">jwideng@kth.se</a>, Phone: +46-8-7907813</p> <p> </p> <p><strong>The data files are grouped into the different techniques used to generate them, and refer to the figures/tables in the manuscript where the extracted results are presented.</strong></p> <p> </p> <p><strong>ABSTRACT</strong></p> <p>Photo-induced dark transient states of fluorophores can pose a problem in fluorescence spectroscopy, but their typically long lifetimes can also make them highly environment sensitive. This opens for exploiting these states as microenvironmental read-out parameters in bio-molecular spectroscopy and imaging, and to explore fluorophores with prominent dark-state formation yields to be used in such studies. In this work, we analyzed the singlet-triplet transitions of fluorescein by transient state (TRAST) spectroscopy and compared them with those of three synthesized carboxy-fluorescein derivatives, with one, two or four bromines linked to the anthracence backbone. By this bromination, a prominent internal heavy atom (IHA) enhancement of the intersystem crossing (ISC) rates was found, and a corresponding external heavy atom (EHA) enhancement upon adding potassium iodide (KI) into the fluorophore solutions. Notably, increased KI concentrations still resulted in lowered triplet state buildup in the brominated fluorophores, due to the relatively lower increase induced in the ISC, than in the triplet decay. Moreover, KI had an antioxidative effect on the fluorophores, resulting in an overall fluorescence enhancement of the brominated fluorophores. The mechanisms behind the prominent IHA effect were further investigated by density functional theory calculations, which suggest that the ISC likely takes place to a higher triplet state, followed by relaxation to the lowest triplet state.</p> <p>By TRAST measurements, performed under biologically relevant conditions and analyzing how the average fluorescence intensity of fluorescent molecules varies with a systematically varied excitation modulation, dark state transitions within very high triplet yield (>90%) fluorophores can be directly analyzed, as well as IHA and EHA effects. These measurements, not possible by other techniques such as fluorescence correlation spectroscopy, opens for bio-sensing applications based on high triplet yield fluorophores, and for characterization of high triplet yield photodynamic therapy agents, and how they are influenced by IHA and EHA effects. </p>
Adolescence is characterized by more sedentary behavior and less physical activity even among highly active forager-farmers
<p>Over 80% of adolescents worldwide are insufficiently active, posing massive public health and economic challenges. Declining physical activity (PA) and sex differences in PA consistently accompany transitions from childhood to adulthood in post-industrialized populations and are often attributed to psychosocial and environmental factors. An overarching evolutionary theoretical framework and data from pre-industrialized populations are lacking. This cross-sectional study tests hypotheses from life history theory, that adolescent PA is inversely related to age, but this association is mediated by Tanner stage, reflecting higher and sex-specific energetic demands for growth and reproductive maturation. Detailed measures of PA and pubertal maturation are assessed among Tsimane forager-farmers (age: 7–22 yrs.; 50% female, n=110). Most Tsimane sampled (71%) meet World Health Organization PA guidelines (≥60 minutes/day of moderate-to-vigorous PA). Like post-industrialized populations, sex differences and inverse age-activity associations were observed. Tanner stage significantly mediated age-activity associations. Adolescence presents difficulties to PA engagement that warrant further consideration in PA intervention approaches to improve public health.</p>
Formulation, Phytochemical Characterization, and Clinical Assessment of a Novel Natural Supplement Targeting Body Composition in Physically Active Individuals
ClinicalTrials.gov study NCT07038135. IPD Sharing: YES. Countries: 1. Publications: 2.
Adolescence is characterized by more sedentary behavior and less physical activity even among highly active forager-farmers
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Geochemical and physical characterization of lithic raw materials in the Olduvai Basin, Tanzania
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