bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of shear deformation on grain size and mechanical properties of the forged B4Cp/Al composite
Authors: Gong Dongmei , Xu Feng , Shi Wenchao , Chen An 
Published: September 2023

Abstract
To flake aluminum powder and strengthen the B4Cp/Al composite, pure aluminum powder is natural oxidized and ball milled. The effect of shear deformation on mechanical properties of the forged B4Cp/Al composite with flaked Al are studied. The results show that ball milling can flake the pure aluminum powder, reduce grain size of aluminum, and increase the volume fraction of Al2O3 on the surface of the flaked aluminum. The forging helps to refine the grain size of aluminum. The flow of aluminum matrix is helpful to the uniform distribution of the B4C particles. Shear deformation can refine grain size and also can break the Al2O3 layer, with the increment of strength, hardness, and relative density. After shear deformation, the ultimate tensile strength of the B4Cp/Al composite is 157.0 MPa.
The crystal structure of a cobalt-vanadium-oxido hydrate
Authors: Wu-Hua Chen , Ran Chen , Jin-Xiao Mi , Hua-Feng Wang , Jia-Yu Song 
Published: September 2023

Abstract
H4O14CoV4.4, monolinic, P2/m (no. 10), a = 8.1091(8) Å, b = 3.5128(2) Å, c = 9.7590(9) Å, β = 111.553(11)°, V = 258.55(4) Å3, Z = 1, R

gt
(F) = 0.0401, wR

ref
(F
2) = 0.0922, T = 293(2) K.
Exploration of generalized two-phase free convection magnetohydrodynamic flow of dusty tetra-hybrid Casson nanofluid between parallel microplates
Authors: Khan Dolat , Hussien Mostafa A. , Elsiddieg Awatif M. A. , Lone Showkat Ahmad , Hassan Ahmed M. 
Published: September 2023

Abstract
Dusty Casson fluids and tetra-hybrid nanofluids are complex phenomena that find their extensive uses in engineering and industrial applications. For instance, dusty fluids are used in gas-freezing systems and nuclear power reactors. The main objective of this article is to focus on the characterization of generalized two-phase free convection magnetohydrodynamic flow of dusty tetra-hybrid Casson nanofluid among parallel microplates: dusty Casson fluid and tetra-hybrid nanofluid exhibit free movement and electrical conductivity. The Caputo–Fabrizio fractional derivative recently discovered generalizes the partial differential equations governing the flow. Highly accurate temperature and velocity distributions can be obtained using finite sine Fourier and Laplace transform together. This study examines the relationships between temperature, dust particle velocity, and Casson fluid velocity, along with the effects of magnetic parameter, Grashof number, dusty fluid parameter, Peclet number, Reynold number, and particle mass parameter. The Mathcad-15 software provides Casson, dusty, and temperature profiles graphically. The Nusselt number and skin friction are also examined for the tetra-hybrid nanofluid. The fractional Casson fluid model is more accurate than the classical model in terms of velocity, temperature, heat transfer, and skin friction. Graphical results conclude that the fractional Casson fluid model describes a more realistic aspect of both (fluid and dust particle) velocities and temperature profiles, heat transfer rate, and skin friction than the classical Casson fluid model. Furthermore, the heat transfer rate enhanced from 0 to 39.3111% of the tetra-hybrid nanofluid.
Freiwilliges Engagement in sozialen Organisationen im Hinblick auf die Motive des Engagements, Erleben emotionaler Distanzierung (Cool Down) und Lebenszufriedenheit bei Menschen mit unterschiedlichen Indikatoren der Spiritualität
Authors: Büssing Arndt , Baumann Klaus , Bär-Mennigen Carina 
Published: September 2023

Zusammenfassung
Viele Menschen engagieren sich freiwillig für andere und kommen in sozialen Bereichen zum Einsatz, die oft physisch und emotional anstrengend und belastend sind. Im vorliegenden Beitrag geht es um das Engagement im sozialen Bereich. Er geht der Frage nach, ob es bei spirituellen, religiösen oder nicht religiösen Menschen Unterschiede in der Motivkonstellation sowie bezüglich der erlebten emotionalen Distanzierung von den begleiteten Personen in Sinne des Cool Down gibt. Hierfür wurde eine anonyme Querschnittsbefragung unter 343 Freiwilligen mittels standardisierter Fragebögen durchgeführt. Das Werte-Motiv steht bei ihnen im Vordergrund, kaum das Wachsen-Motiv. Religiöse und nicht-religiöse Engagierte unterscheiden sich hinsichtlich ihrer Motivationen nicht signifikant, jedoch zeigen sich für das Werte-Motiv deutliche Zusammenhänge mit einem bewussten Umgang mit anderen sowie Compassion und Altruismus, aber auch mit einer Suche nach Einsicht und Weisheit. Die Beweggründe des Engagements sind also bedeutsam, weniger die Religionszugehörigkeit. Das Cool Down-Empfinden korreliert nicht mit Indikatoren der Spiritualität. Für Freiwilligen-Organisationen ist es wichtig, das aktuelle Risikoprofil der Engagierten im Sinne einer emotionalen Überforderung und Distanzierung von den begleiteten Personen zu kennen, um notwendige Unterstützung anbieten zu können. Basierend auf dieser Arbeit können Empfehlungen ausgesprochen werden, die prinzipielle auch für diejenigen gelten, die sich im Kontext des Spiritual Care ehrenamtlich engagieren.
A computational study of the conformational stability, vibrational spectra, and thermochemical properties of 2,6-dichlorobenzamide, 2-(trifluoromethyl)benzamide, 2-(trifluoromethyl)benzoic acid, and 3-chloro-5-(trifluoromethyl)pyridine-2-carboxylic acid
Authors: Espinosa Manrique Wilfred , Badenes María Paula , Tucceri María Eugenia 
Published: September 2023

Abstract
2,6-Dichlorobenzamide (BAM), 2-(trifluoromethyl)benzamide (TBAM), 2-(trifluoromethyl)benzoic acid (TBA), and 3-chloro-5-(trifluoromethyl)pyridine-2-carboxylic acid (PCA) are degradation by-products of fluopicolide and fluopyram fungicides. In this work, a detailed theoretical study of their different molecular, spectroscopic and thermochemical properties was carried out with different formulations of the density functional theory and high-level model chemistries. The mean values of −146.0 ± 6.3, −763.2 ± 6.3, −949.0 ± 6.3, and −919.4 ± 6.3 kJ mol−1 for the standard enthalpies of formation of BAM, TBAM, TBA and PCA, respectively, were derived for the first time at the G3MP2//DFT and G4MP2//DFT levels of theory (DFT = B3LYP, BMK, and B98). Additionally, a good agreement between formation enthalpies derived from isodesmic reaction approach and from Benson’s group additivity method was obtained.
Swelling Potential and Performance Level of Hot Mix Asphalt Containing Not-Hydrated Ladle Furnace Steel Slags as Filler
Authors: Roberto Antonio , Monticelli Riccardo , Roncella Riccardo , Romeo Elena , Tebaldi Gabriele 
Published: September 2023

Abstract
Nowadays, the use of carbon-neutral materials is an urgent need because of energy consumption and CO2-emissions concerns. Thus, the use of ladle furnace steel slags (LFSs) is becoming common in asphalt pavement fields. One of the limitations on using LFSs is linked to swelling potential because of the changes in chemical structure due to the hydration of their components. In this study, two different asphalt binders, neat and 3.5 % styrene-butadiene-styrene modified, were mixed with limestone coarse aggregates and two fillers (limestone and LFSs) to analyze the swelling potential and the performance levels of hot mix asphalts containing not-hydrated LFSs as filler. The analysis was conducted performing the SuperPave indirect tensile test protocol at 10°C and by using a 3D-digital image correlation metadata model (3D-DICM) capable of computing the volumetric expansion of materials after four different periods of conditioning in water (24, 48, 168, and 336 h). The results showed no significant differences among the analyzed materials, highlighting that the volumetric expansion is mainly linked to the aggregates’ water absorption. On the other hand, conditioning time seems to affect the deformability of the mixtures, influencing performance level.
A bifunctional kinase–phosphatase module balances mitotic checkpoint strength and kinetochore–microtubule attachment stability
Authors: Corno Andrea , Cordeiro Marilia H , Allan Lindsey A , Lim Qian‐Wei , Harrington Elena , Smith Richard J , Saurin Adrian T 
Published: September 2023

AbstractTwo major mechanisms safeguard genome stability during mitosis: the mitotic checkpoint delays mitosis until all chromosomes have attached to microtubules, and the kinetochore–microtubule error‐correction pathway keeps this attachment process free from errors. We demonstrate here that the optimal strength and dynamics of these processes are set by a kinase–phosphatase pair (PLK1‐PP2A) that engage in negative feedback from adjacent phospho‐binding motifs on the BUB complex. Uncoupling this feedback to skew the balance towards PLK1 produces a strong checkpoint, hypostable microtubule attachments and mitotic delays. Conversely, skewing the balance towards PP2A causes a weak checkpoint, hyperstable microtubule attachments and chromosome segregation errors. These phenotypes are associated with altered BUB complex recruitment to KNL1‐MELT motifs, implicating PLK1‐PP2A in controlling auto‐amplification of MELT phosphorylation. In support, KNL1‐BUB disassembly becomes contingent on PLK1 inhibition when KNL1 is engineered to contain excess MELT motifs. This elevates BUB‐PLK1/PP2A complex levels on metaphase kinetochores, stabilises kinetochore–microtubule attachments, induces chromosome segregation defects and prevents KNL1‐BUB disassembly at anaphase. Together, these data demonstrate how a bifunctional PLK1/PP2A module has evolved together with the MELT motifs to optimise BUB complex dynamics and ensure accurate chromosome segregation.
CryoET shows cofilactin filaments inside the microtubule lumen
Authors: Ventura Santos Camilla , Rogers Stephen L , Carter Andrew P 
Published: September 2023

AbstractCytoplasmic microtubules are tubular polymers that can harbor small proteins or filaments inside their lumen. The identities of these objects and mechanisms for their accumulation have not been conclusively established. Here, we used cryogenic electron tomography of Drosophila S2 cell protrusions and found filaments inside the microtubule lumen, which resemble those reported recently in human HAP1 cells. The frequency of these filaments increased upon inhibition of the sarco/endoplasmic reticulum Ca2+ ATPase with the small molecule drug thapsigargin. Subtomogram averaging showed that the luminal filaments adopt a helical structure reminiscent of cofilin‐bound actin (cofilactin). Consistent with this, we observed cofilin dephosphorylation, an activating modification, in cells under the same conditions that increased luminal filament occurrence. Furthermore, RNA interference knock‐down of cofilin reduced the frequency of luminal filaments with cofilactin morphology. These results suggest that cofilin activation stimulates its accumulation on actin filaments inside the microtubule lumen.
Difluoromethylornithine rebalances aberrant polyamine ratios in Snyder–Robinson syndrome
Authors: Stewart Tracy Murray , Foley Jackson R , Holbert Cassandra E , Khomutov Maxim , Rastkari Noushin , Tao Xianzun , Khomutov Alex R , Zhai R Grace , Casero Robert A 
Published: September 2023

AbstractSnyder–Robinson syndrome (SRS) results from mutations in spermine synthase (SMS), which converts the polyamine spermidine into spermine. Affecting primarily males, common manifestations of SRS include intellectual disability, osteoporosis, hypotonia, and seizures. Symptom management is the only treatment. Reduced SMS activity causes spermidine accumulation while spermine levels are reduced. The resulting exaggerated spermidine:spermine ratio is a biochemical hallmark of SRS that tends to correlate with symptom severity. Our studies aim to pharmacologically manipulate polyamine metabolism to correct this imbalance as a therapeutic strategy for SRS. Here we report the repurposing of 2‐difluoromethylornithine (DFMO), an FDA‐approved inhibitor of polyamine biosynthesis, in rebalancing spermidine:spermine ratios in SRS patient cells. Mechanistic in vitro studies demonstrate that, while reducing spermidine biosynthesis, DFMO also stimulates the conversion of spermidine into spermine in hypomorphic SMS cells and induces uptake of exogenous spermine, altogether reducing the aberrant ratios. In a Drosophila SRS model characterized by reduced lifespan, DFMO improves longevity. As nearly all SRS patient mutations are hypomorphic, these studies form a strong foundation for translational studies with significant therapeutic potential.
Survey Kemampuan Gerak Dasar Siswa Siswi Kelas Atas Sekolah Dasar Negeri Sambirejo 2 Kecamatan Plupuh Kabupaten Sragen
Authors: Pamungkas Dimas Dwi , Rustiadi Tri 
Published: September 2023

Penelitian ini merupakan penelitian deskriptif kuantitatif dengan menggunakan metode survei dengan teknik pengumpulan data. Populasi dalam penelitian ini adalah siswa SMA di SDN Sambirejo 2 Kecamatan Plupuh Kabupaten Sragen dengan kategori sebanyak 45 orang. Instrumen dan teknik pengumpulan data dalam penelitian ini menggunakan tes Shuttle Run 4 x 10 meter, tes lempar tangkap bola jarak 1 meter ke dinding, Tes Keseimbangan Posisi Berdiri Bangau, tes sprint 30 meter. Teknik analisis data menggunakan analisis deskriptif yang dinyatakan dalam bentuk persentase kemampuan gerak dasar siswa kelas atas di SDN Sambirejo 2 Kecamatan Plupuh Kabupaten Sragen. Hasil penelitian menunjukkan bahwa kemampuan motorik dasar siswa kelas atas di SD Negeri Sambirejo 2 Kecamatan Plupuh Kabupaten Sragen secara rinci sebagai berikut, sebanyak 4 orang (9%) berada pada kategori sangat tinggi, 11 orang (24%) berada pada kategori sangat tinggi. kategori tinggi, 17 orang (38%) kategori sedang, 9 orang (20%) kategori rendah, 4 orang (9%) kategori sangat rendah. Saran dalam penelitian ini adalah bagi siswa yang kemampuan motorik dasarnya masih kurang, melakukan aktivitas fisik secara terus menerus. Bagi guru agar lebih memperhatikan faktor-faktor yang mempengaruhi kemampuan gerak dasar. Bagi peneliti selanjutnya dapat dilakukan penelitian dengan populasi dan sampel yang lebih luas.

This research was quantitative descriptive study using a survey method with data collection techniques. Population in this study were high school students at Sambirejo 2 Elementary School, Plupuh District, Sragen Regency with a category of 45 people. Instruments and data collection techniques in this study used a 4 x 10 meter Shuttle Run test, a throw and catch ball test at a distance of 1 meters against a wall, Stork Stand Position Balance Test, 30 meter sprint test. The data analysis technique used descriptive analysis which was expressed in the form of the percentage of basic movement abilities of upper class students at Sambirejo 2 Elementary School, Plupuh District, Sragen Regency. Results showed that basic motor abilities of upper class students at SD Negeri Sambirejo 2, Plupuh District, Sragen Regency in detail as follows, as many as 4 people (9%) were in the very high category, 11 people (24%) were in the high category, 17 people ( 38 %) in the medium category, 9 people (20%) in the low category, 4 people (9%) in the very low category. Suggestions in this study was that for students whose basic motor abilities are lacking, do physical activity continuously. For teachers to pay more attention to the factors that affect basic movement abilities. For further researchers, research can be carried out with a wider population and sample.
Survei Kondisi Sarana Dan Prasarana Pembelajaran Pendidikan Jasmani Sekolah Dasar Negeri di Kecamatan Kajoran Kabupaten Magelang Tahun 2022
Authors: Al Amjad Muhammad Dzikri , Qoriah Anirotul 
Published: September 2023

This research was motivated by the unknown conditions and conditions of physical education learning facilities and infrastructure in public elementary schools in Kajoran District, Magelang Regency. The purpose of this study is to determine the condition and existence of Physical Education learning facilities and infrastructure in elementary schools in Kajoran District, Magelang Regency.
The research method used is a survey with a quantitative descriptive approach. The research location is in Magelang Regency with a research target of 10 elementary schools in Kajoran District, Magelang Regency. The data collection technique uses the quota sampling technique. The instruments used used observations, interviews with principals and physical education teachers, observation sheets and documentation. Data collection includes the number of tools, the number of tools, the number of facilities, the condition of the tools, the condition of the tools and the condition of the facilities. The analysis used is percentage by classifying the types of data obtained from observation sheets and grouped.
Based on the results of research on the condition and existence of Physical Education learning tools in Elementary Schools, Kajoran District, Magelang Regency, from 10 schools, there is 1 school that is included in the excellent category with a percentage of 10%, namely SDN Mangunrejo. Then there are 2 schools in the good category with a percentage of 20% including SDN Sutopati 1 and SDN Sukomulyo. Then there are 3 schools in the medium category with a percentage of 30% including SDN Ngargosari, SDN Ngendrosari, SDN Sidorejo. And there are 4 schools in the less category with a percentage of 40% including SDN Bambusari, SDN Banjaragung, SDN Lesanpuro, SDN Kuwaderan 1.
The conclusion in this study is that the facilities and infrastructure in elementary schools in Kajoran District, Magelang Regency, many schools are still in the category of lacking. The advice given by the researcher is so that the Magelang Regency government pays more attention to the facilities and infrastructure in the Kajoran District Elementary School and also physical education teachers can maintain and modify the facilities and infrastructure in the school.
Synthesis, crystal and energy structure of the Ag8SnS6 crystal
Authors: Semkiv I.V. , Ilchuk H.A. , Kashuba N.Y. , Kordan V.M. , Kashuba A.I. 
Published: September 2023

The Ag8SnS6 crystal was synthesized by directly melting a high-purity stoichiometric mixture of elementary Ag, Sn, and S in a sealed quartz ampoule. This argyrodite crystallizes in the orthorhombic structure (Pna21 space group (No. 33)) at room temperature. The theoretical first-principle calculations of the electronic band structure and density of states of a αʹʹ-Ag8SnS6 crystal are estimated by the generalized gradient approximation (GGA) and local density approximation (LDA). A Perdew–Burke–Ernzerhof functional (PBE) and (PBEsol) were utilized for GGA calculation. All calculated parameters correlate well with known experimental data. Based on the electronic band structure, the effective mass of electrons and holes was calculated. The anisotropic behavior of electronic band structure is discussed.
Identificación y Evaluación de Estudiantes con Necesidades Educativas Especiales en Inglaterra
Authors: Hegarty Seamus 
Published: September 2023

Este documento describe el sistema utilizado en la actualidad en Inglaterra para identificar y evaluar alumnos con necesidades educativas especiales. (En el resto del Reino Unido se implementan enfoques bastante parecidos pero los instrumentos legales y regulatorios son distintos, así como existen variaciones en el lenguaje usado y algunos detalles prácticos). Los documentos clave de referencia son el Code of Practice (DfES, 2001a) o Manual de Buenas Prácticas promulgado por el Departamento de Educación y Competencias (Department for Education and Skills) en 2001 y el SEN* Toolkit (DfES, 2001b), o caja de herramientas para necesidades educativas especiales, asociado con el anterior manual. Este trabajo empieza definiendo tres conceptos asociados, es decir, las necesidades educativas especiales, las dificultades de aprendizaje y la entrega de educación especial. Luego, establece los principios fundamentales que constituyen la base de la práctica de identificar y evaluar, y enumera sus factores clave de éxito. La sección principal del artículo describe el mecanismo que existe para identificar y evaluar a alumnos con necesidades educativas especiales y brindarles el apoyo que requieren. La última sección hace referencia al tema del financiamiento y los procedimientos mediante el cual los recursos son asignados a las escuelas para facilitar la entrega de educación especial. Descriptores: necesidades educativas especiales, dificultades del aprendizaje, manual de buenas prácticas. Identification and Evaluation of Students with Special Educational Needs in EnglandThis document describes the system currently used in England to identify and evaluate students with special educational needs. (Although similar perspectives are implemented in the rest of the United Kingdom the legal and regulatory instruments are different and there are variations in language and some practical details). The key reference documents are the Code of Practice (DfES, 2001a) or Good Practice Guide enacted by the Department for Education and Skills in 2001 and the SEN* Toolkit (DfES, 2001b), or the tool kit for special educational needs related to the above mentioned guide.This article begins by defining three related concepts; special educational needs, learning difficulties and the provision of special needs education. It then establishes the fundamental principles that constitute the basis for identifying and evaluating, and lists their key success factors. The main section of this article describes the current mechanism used to identify and evaluate students with special educational needs in order to provide the support they require. The last section refers to financing issues and the procedures used to assign resources to schools in order to facilitate the provision of special needs education. Keywords: Special educational needs, identification and evaluation, Good Practice Guide
Assessment of Plasma N-Terminal Pro-Brain Natriuretic Peptide and CRP in Patients with Severe Sepsis, Septic Shock and Acute Heart Failure
Authors: Rahman Mona Mansour Abd El , Abdelhamid Yasser Mohamed , Ishak Marianne Fathy , Hadad Kareem Essam Elden , Shalaan Mohamed Shalaan Ibrahim 
Published: September 2023

Background: Increased plasma levels of brain natriuretic peptide (BNP) have been identified as predictors of cardiac dysfunction and prognosis in congestive heart failure and ischemic heart disease. In severe sepsis patients, however, no information is available yet about the prognostic value of natriuretic peptides in Egyptian patients. Aim: The aim of the present work is to study the relationship between amino-terminal pro-BNP, C-reactive protein in one hand and the severity of organ dysfunction and mortality on admission in the other in patient with severe sepsis and septic shock.Patients and methods: This study population consisted of ninety patients aged >18 years, who were admitted to the internal medicine department ICU, Kasr El-Aini Hospitals, Cairo University and enrolled within 24 hours of admission to the ICU with severe sepsis, patients with septic shock, patients with acute decompensated heart failure and patients who developed severe sepsis while in the ICU. The patients were divided to 3 groups, Group I (septic shock), group II (severe sepsis) and group III (heart failure). Plasma N-Terminal Pro-Brain Natriuretic Peptide and CRP were measured.Results: There was higher CRP level in group I (69.56 ± 38.01) compared to group II (41.70 ± 25.34) with a significant p value (0.002). There was higher level of NTproBNP in group I (2809.73 ± 2362.32 pg/ml) compared to group II (2595.13 1968.39 pg/ml) and group III (789.37 ± 348.01pg/ml) with a statistically significant p valueConclusion: NT-pro BNP values are increased in severe sepsis and septic shock. Values are significantly higher in non survivors than survivors. Elevated concentrations of serum CRP on admission are indicators of an increased risk of severe sepsis, septic shock and death.