bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Perception of Library and Information Science (LIS) Professionals about Research Data Management Services in University Libraries of Pakistan
Authors: Ashiq Murtaza , Saleem Qurat Ul Ain , Asim Muhammad 
Published: April 2021

Abstract
Research data management services (RDMS) is considered as an emerging and groundbreaking area for research libraries. A large number of studies focused on researchers’ perspectives of how they perform research data management practices. There are some studies that examine this important area of research from library and information science (LIS) professionals’ context, especially developing countries like Pakistan. Hence, this study addresses the gap and investigate the RDMS training needs, motivational factors, possible hindrances, and key reasons to support RDMS. A survey method was used and a self-developed questionnaire was prepared using Google Docs survey. The questionnaire link was shared with LIS professionals considering purposive sampling technique. The study highlights the main RDMS supporting reasons, needed training areas, best methods to get training, the motivational factors, and possible hindrances while planning and implementing RDMS. This study fills the gap and addresses research data management literature in developing countries’ context, especially Pakistan, and established that RDMS are poorly observed in developing countries and require some drastic steps to be launched and improved. Higher Education Commission/departments, university administrations, and donor agencies take such initiatives that research data should be openly available through repositories and the maximum number of training opportunities should be provided to LIS professionals.
Die Person-Umwelt Hypothese der Situational Action Theory und gewalttätiger Extremismus. Ein Teilprüfungsversuch
Authors: Pauwels Lieven , Hardyns Wim , Klima Noel 
Published: April 2021

Zusammenfassung
Die vorliegende Arbeit untersucht die Wechselwirkungen zwischen der extremistischen Disposition und der Online-Exposition gegenüber extremistischen moralischen Normen auf politisch-religiös motiviertes Gewalthandeln. Während bei der Erklärung der Delinquenz von Jugendlichen ein stabiler Interaktionseffekt zwischen der Disposition zur Kriminalität und der kriminogenen Exposition nachgewiesen wurde, wurde dieser Interaktionseffekt in keiner früheren Studie unter jungen Erwachsenen explizit im Hinblick auf politisch oder religiös motivierte Gewalt untersucht. Diese Studie ergänzt daher die vorhandene Literatur um die Überprüfung einer zentralen Annahme der Situational Action Theory (SAT), nämlich der Person-Umwelt-Hypothese (PEA-Hypothese) im Bereich der politisch und religiös motivierten Gewalt. Der SAT zufolge entsteht gewalttätiger Extremismus, wenn eine zu gewalttätigem Extremismus neigende Person und ein gewalttätig-extremistisches Handlungsumfeld zusammentreffen. Diese Arbeit untersucht die Wechselwirkungen dreier Arten extremistischer Dispositionen (linksextremistische, rechtsextremistische und religiös-extremistische Disposition) mit der Exposition gegenüber gewaltaffin-extremistischer Handlungsumfelder. Zugrunde liegen eine schriftliche Befragung von SchülerInnen und eine Internetumfrage unter jungen Erwachsenen in Belgien. Die Ergebnisse stützen die Hypothese, dass die Wirkung der Disposition von der kumulativen extremistischen Exposition abhängt. Diese Resultate bleiben über spezifische Operationalisierungen der Disposition hinweg stabil. Die Bedeutung der erzielten Befunde für die weitere Forschung wird diskutiert.
Nonlocal Initial Value Problem for Hybrid Generalized Hilfer-type Fractional Implicit Differential Equations
Authors: Salim Abdelkrim , Benchohra Mouffak , Lazreg Jamal Eddine , Nieto Juan J. , Zhou Yong 
Published: April 2021

Abstract
In this paper, we prove some existence results of solutions for a class of nonlocal initial value problem for nonlinear fractional hybrid implicit differential equations under generalized Hilfer fractional derivative. The result is based on a fixed point theorem on Banach algebras. Further, examples are provided to illustrate our results.
Existence results to a ψ- Hilfer neutral fractional evolution equation with infinite delay
Authors: Norouzi Fatemeh , N’guérékata Gaston M. 
Published: April 2021

Abstract
In this paper, we prove the existence and uniqueness of a mild solution to the system of ψ- Hilfer neutral fractional evolution equations with infinite delay
H
𝔻0

αβ;ψ
[x(t) − h(t, xt
)] = A x(t) + f (t, x(t), xt
), t ∈ [0, b], b > 0 and x(t) = ϕ(t), t ∈ (−∞, 0]. We first obtain the Volterra integral equivalent equation and propose the mild solution of the system. Then, we prove the existence and uniqueness of solution by using the Banach contraction mapping principle and the Leray-Schauder alternative theorem.
Women in physics
Authors: Ponce Dawson Silvina 
Published: April 2021

Abstract
The International Union of Pure and Applied Physics (IUPAP) is the scientific union representing identified physics communities from all over the world. It currently has 60 country members and is organized and run by the physics community itself. About to turn one hundred years old, the IUPAP has taken several actions for over 20 years to increase the participation and improve the situation of women physicists. The creation of its Working Group on Women in Physics in 1999 has had an enormous impact on the physics communities giving visibility to a problem that had often gone unnoticed, raising awareness and, most importantly, creating a very active network of women physicists in more countries than IUPAP members. The Working Group has also had a direct impact on the IUPAP’s organization and on the activities it sponsors. In this paper I give a brief account of the actions of the Working Group and of the measures that the IUPAP has taken since 1999 to help reduce the gender gap in physics and in STEM. I then focus on the many activities that it led to in Latin America, the region of origin of three of the five chairs of the Working Group.
A clinicopathological study of peripheral schwannomas
Authors: Majumder Ankur , Ahuja Arvind , Chauhan DS , Paliwal Purnima , Bhardwaj Minakshi 
Published: April 2021

Aim and objective. Schwannomas are benign neoplasms of neural origin with sporadic or syndromic occurence. They are commonly seen in cranial nerves. Peripheral schwannomas occur rarely and may have unique presentations. The aim of this study is to evaluate the clinico-pathological characteristics of peripheral schwannomas.
Methods. A retrospective cross sectional study of peripheral schwannomas excluding head neck region was conducted. The study group consisted of 18 cases which were recorded over a period of seven years. The corresponding data were collected from the archives of the Department of Pathology.
Results. Male to female ratio was 1:1. The average age of the cases was 47 years. The most common site was the upper limbs (55.55%) followed by lower limbs, chest and penis. The lesions mostly presented as painless swellings (62%). Histopathological examination revealed classic features of schwannoma. Secondary changes included cystic degeneration, foam cells, epitheloid cells, hyalinization, microcystic change and collection of plasma cells. All cases were confirmed by positive S100 staining.
Conclusion.Peripheral schwannomas may be missed due to its rarity and atypical presentations. Both clinicians and pathologists should be aware of this common entity at unusual sites for the proper management of the patients. Surgery is usually the treatment of choice.
Medical Device Workarounds in Providing Care for Children With Medical Complexity in the Home
Authors: Barton Hanna J. , Coller Ryan J. , Loganathar Shanmugapriya , Singhe Nawang , Ehlenbach Mary L. , Katz Barbara , Warner Gemma , Kelly Michelle M. , Werner Nicole E. 
Published: April 2021

OBJECTIVES:
Children with medical complexity (CMC) are commonly assisted by medical devices, which family caregivers are responsible for managing and troubleshooting in the home. Optimizing device use by maximizing the benefits and minimizing the complications is a critical goal for CMC but is relatively unexplored. In this study, we sought to identify and describe workarounds families have developed to optimize medical device use for their needs.

METHODS:
We conducted 30 contextual inquiry interviews with families of CMC in homes. Interviews were recorded, transcribed, and analyzed for barriers and workarounds specific to medical device usage through a directed content analysis. We used observation notes and photographs to confirm and elaborate on interview findings.

RESULTS:
We identified 4 barriers to using medical devices in the home: (1) the quantity and type of devices allotted do not meet family needs, (2) the device is not designed to be used in locations families require, (3) device use is physically or organizationally disruptive to the home, and (4) the device is not designed to fit the user. We also identified 11 categories of workarounds to the barriers.

CONCLUSIONS:
Families face many barriers in using medical devices to care for CMC. Our findings offer rich narrative and photographic data revealing the ways in which caregivers work around these barriers. Future researchers should explore the downstream effects of these ubiquitous, necessary workarounds on CMC outcomes toward developing interventions that optimize device use for families.
Differences in the standardization of medicinal products based on extracts of chondroitin sulfate
Authors: Gromova O. A. , Torshin I. Yu. , Zaychik B. Ts. , Shikh E. V. , Ruzhitskiy A. O. , Galustyan A. N. , Sardaryan I. S. , Sarvilina I. V. 
Published: April 2021

Objective: a comparative analysis of 6 different chondroprotectors for injection, containing chondroitin sulfate (CS) based on natural extracts.Material and methods. Five samples were studied for each CS extract. The preparations were compared on the basis of profiles of trace element composition, sulfur content, chromatographic analysis and test for total protein. In each sample, the concentration of 72 elements was determined, then averaging was performed and the variances of the content of each element were calculated. To assess the content of the protein fraction, a modified Lowry method with bicincholic acid was used. Chromatographic profiles of the studied CS extracts were measured to estimate the molecular weight distribution.Results. The studied samples differ significantly from each other in the total and individual content of sulfur, toxic and conditionally toxic microelements. According to the analysis of sulfur and trace elements, a cluster of more standardized CS extracts was identified. It was shown that the assessments of the pharmaceutical quality of the studied extracts made by the elemental profile, correspond to the assessments of the quality by the degree of proteins elimination and by the molecular weight characteristics of CS extracts. In particular, the highest total content of toxic elements was found for CS-6 (14.87±1.81 μg/l) and CS-2 (9.20±1.12 μg/l), and the lowest – for CS-4 (1.46±0.23 μg/l), CS-3 (1.92±0.33 μg/l) and CS-1 (2.98±0.25 μg/l). The highest content of protein impurities was also found in CS-6 (9.62 mg/ml) and CS-2 (6.64 mg/ml), and the lowest – in CS-1 (2.87 mg/ml). At the same time, the highest amount of sulfur was found CS-1 (6400 mg/kg) and much less – for CS-2 (370 mg/kg) and CS-6 (100 mg/kg). Significant amounts of the high-molecular fraction of CS (1–40 kDa) were found only in CS-1, and only trace amounts of high-molecular CS forms were present in CS-2 and CS-6.Conclusion. The highest content of cholesterol and sulfur and, at the same time, the lowest content of toxic microelements and proteins were distinguished by the extract obtained from the trachea of a bovine.
Tebang Pilih Mengubah Keanekaragaman Semut Tanah Hutan di Kalimantan Timur, Indonesia
Authors: Budiaman Ahmad , Haneda Noor Farikhah , Nurahma Laela 
Published: April 2021

This study assesses the short-term effects of selective cutting on the diversity of ground ants (Hymenoptera: Formicidae) in the secondary rainforest. Ground ants were collected using a pitfall trap in a circular sample plot of 0.5 ha. A total of nine sample plots were randomly placed in a 98-ha cutting compartment. Fifteen pitfall traps were planted in each circular plot. A total of 135 pitfall traps were established in the cutting compartment. The average cutting intensity of 8 trees/haas applied in the cutting compartment. Insect sampling and measurement of environmental factors were carried before cutting and two days after cutting. In this study, the abundance, diversity, species richness, and evenness index of ground ants before cutting compared to after cutting. The results of this study indicated that the short-term impact of selective cutting on ground ants was varied. Selective cutting may increase or decrease the abundance and morphospecies composition of ground ants. The abundance of forager and ground-dwelling omnivores increased after selective cutting, whereas for the predator, scavenger, and seed disperser ants were decreased after selective cutting. Keywords: biodiversity, forest conservation, ground ant, selective cutting
Reading and its relationships among attitude, motivation, and comprehension achievement in upper secondary school students
Authors: Tisa Fatimah , Sofendi Sofendi , Eryansyah Eryansyah 
Published: April 2021

Reading is essential in every subject. Reading also has a relationship with the students' achievement. This study is aimed to investigate whether or not there is (1) a significant correlation between reading attitude and reading comprehension achievement, (2) a significant correlation between reading motivation and reading comprehension achievement, (3) a significant correlation between reading attitude and reading motivation, and (4) any correlation between predictor variables and the criterion variable. The study was a correlational study with Pearson-product moment correlation. The sample of this study were 95 eleventh graders of upper secondary school. Cluster random sampling technique is used in this study. Questionnaires of reading attitude, reading motivation, and reading comprehension tests are given. The questionnaire result reveals that the reading attitude was negative, and reading motivation is medium. Furthermore, the results show that reading attitude and reading comprehension has a significant correlation. Reading motivation and reading comprehension also has a significant correlation. The roles of students, parents and teachers must work suitably in order to construct the positive reading atmosphere, thus they could achieve the better achievement in reading even for all subjects.
HIGHLIGHTS:

The supports from family in motivating the children to be a good reader could build the positive attitude toward reading.
Reading motivation can lead to the improvement in language learning performance.
The learners who tend to read simple English texts can be said as the learners who were lacking English reading experiences.
Functionnectome: a framework to analyse the contribution of brain circuits to fMRI
Authors: de Schotten Michel Thiebaut , Nozais Victor , Forkel Stephanie , Foulon Chris , Petit Laurent 
Published: April 2021

Abstract
In recent years, the field of functional neuroimaging has moved away from a pure localisationist approach of isolated functional brain regions to a more integrated view of these regions within functional networks. However, the methods used to investigate functional networks rely on local signals in grey matter and are limited in identifying anatomical circuitries supporting the interaction between brain regions. Mapping the brain circuits mediating the functional signal between brain regions would propel our understanding of the brain’s functional signatures and dysfunctions. We developed a novel method to unravel the relationship between brain circuits and functions: The Functionnectome. The Functionnectome combines the functional signal from fMRI with white matter circuits’ anatomy to unlock and chart the first maps of functional white matter. To showcase this new method’s versatility, we provide the first functional white matter maps revealing the joint contribution of connected areas to motor, working memory, and language functions. The Functionnectome comes with an open-source companion software and opens new avenues into studying functional networks by applying the method to already existing dataset and beyond task fMRI.
Cu(II) and Cd(II) Removal from Aqueous Solution with LDH@GO-NH2 and LDH@GO-SH: Kinetics and Probable Mechanism
Authors: Liao Wei , Bao Di , Li Huiqiang , Yang Ping 
Published: April 2021

Abstract
Two novel adsorbents of thiol- and amino-functionalized GO grafted onto LDH (LDH@GO-NH2 and LDH@GO-SH) were synthesized and contrasted for adsorption properties for Cu(II) and Cd(II). Characterization experiments illustrated that thiol group (-SH) and amino group (-NH2) were existed onto LDH@GO-NH2 and LDH@GO-SH. Adsorption isotherm results showed that the adsorption processes were satisfactorily fitted by both Langmuir and Freundlich models. The maximum adsorption capacity of Cd(II) on LDH@GO-SH at 308 K was 102.77 mg/g, which was about triple that of LDH@GO-NH2. The enhancement in adsorption capacity was due to the cooperative effect of LDH and GO-SH. The kinetic experimental data for LDH@GO-NH2 and LDH@GO-SH were found to be in good agreement with pseudo-second-order model. The thermodynamic parameters calculated from the temperature dependent adsorption isotherms indicated that the adsorption was a spontaneous and endothermic process. The possible adsorption mechanisms comprising formation of precipitation, isomorphic substitution of Mg(II), and formation of complexation with amino-groups and thiol-groups were proposed. Desorption experiments put into evidence that the LDH@GO-NH2 and LDH@GO-SH may be promising suitable candidates for the remediation of metal ions from aqueous solutions in real work in the near future.
Risk Factors for Perioperative Blood Transfusion in Patients Undergoing Hysterectomy for Benign Disease in a Teaching Institution
Authors: Saad-Naguib Michael , Ulker Ashley , Timmons Douglas , Grady Mary , Lederer Madeline , Carugno Jose 
Published: April 2021

Abstract
Purpose: The purpose is to identify risk factors for perioperative blood transfusion in patients undergoing hysterectomy for benign disease. Methods: This study is a retrospective chart review including all the patients who underwent hysterectomy for benign disease between January 1st 2018 and December 31st 2019. Patients who received perioperative blood transfusion were identified and compared to those who did not. The following risk factors for blood transfusion were analyzed: route of hysterectomy, BMI, presence of adhesions, history of cesarean section, uterine weight. Descriptive statistics was used to analyze the data. Results: A total of 517 patients were identified and included in the study. Forty-seven patients (9.09 %) received a perioperative blood transfusion. The abdominal hysterectomy route (TAH) was a significant risk factor for receiving blood transfusion (p=0.012). Other identified risk factors for blood transfusion included: Body mass index above 33.0 (p=0.002), and uterine weight (p=0.002). There was no association between the presence of pelvic adhesions (p=0.91) or a personal history of cesarean section (p=0.89) and receiving perioperative blood transfusion. When analyzing only the patients who underwent TLH, the presence of pelvic adhesion was found as a risk factor for perioperative blood transfusion (p=0.024) Conclusion: The abdominal hysterectomy route, the presence of a large uterus, and obesity are risk factors for receiving a blood transfusion. Early identification of the patient at risk of requiring perioperative blood transfusion provides better patient counseling and surgical preparation.
Viral-eukaryotic gene exchange drives infection mode and cellular evolution
Authors: Irwin Nicholas , Pittis Alexandros , Richards Thomas , Keeling Patrick 
Published: April 2021

Abstract
Gene exchange between viruses and their hosts acts as a key facilitator of horizontal gene transfer and is thought to be a major driver of evolutionary change 1–3. Our understanding of this process comes primarily from bacteria and phage co-evolution4, but the mode and functional significance of gene transfers between eukaryotes and their viruses remains more anecdotal. Here we show that viral-eukaryotic gene exchange can define infection strategies and has recurrently influenced eukaryotic evolution. Using a systematic, phylogenetically-informed approach, we characterized viral-eukaryotic gene exchange across diverse taxa, identifying thousands of transfers, and revealing their frequency, taxonomic distribution, and projected functions, across the eukaryotic tree of life. Eukaryote-derived viral genes revealed common viral host-manipulation strategies, including the key cellular pathways and compartments targeted during infection, identifying potential targets for broad-spectrum host-targeted antiviral therapeutics. Furthermore, viral-derived eukaryotic genes exposed a recurring role for viral glycosyltransferases in the diversification of eukaryotic morphology, as viral-derived genes have impacted the evolution of structures as diverse as algal cell walls, trypanosome mitochondria, and animal tissues. These findings illuminate the nature of viral-eukaryotic gene exchange and its impact on the biology of viruses and their eukaryotic hosts, providing novel perspectives for understanding viral infection mechanisms and revealing the influence of viruses on eukaryotic evolution.
Gas Permeability Change with Deformation and Cracking of a Sandstone under Triaxial Compression
Authors: LIN Yuan-Jian , LIU Jiang-Feng , CHEN Tao , MA Shi-Jia , WANG Pei-Lin , BAI Hai-Bo 
Published: April 2021

Abstract

In this paper, a THMC multi-field coupling triaxial cell was used to systematically study the evolution of gas permeability and the deformation characteristics of sandstone. The effects of confining pressure, axial pressure and air pressure on gas permeability characteristics were fully considered in the test. The gas permeability of sandstone decreases with increasing confining pressure. When the confining pressure is low, the variation of gas permeability is greater than the variation of gas permeability at high confining pressure. The gas injection pressure has a significant effect on the gas permeability evolution of sandstone. As the gas injection pressure increases, the gas permeability of sandstone tends to decrease. At the same confining pressure, the gas permeability of the sample during the unloading path is less than the gas permeability of the sample in the loading path. When axial pressure is applied, the axial stress has a significant influence on the permeability evolution of sandstone. When the axial pressure is less than 30 MPa, the gas permeability of the sandstone increases as the axial pressure increases. At axial pressures greater than 30 MPa, the permeability decreases as the axial pressure increases. Finally, the micro-pore/fracture structure of the sample after the gas permeability test was observed using 3D X-ray CT imaging.