bluuebunny/crossref_metadata_2025 huggingface dataset:
École : les frontières raciales de l’institution et du corps professionnel
Authors: Dhume Fabrice
Published: September 2021

Les dispositifs mis en place par l’administration scolaire pour lutter contre les discriminations racistes à l’école reposent sur une conception très partielle du racisme et se focalisent sur le comportement et le vécu des élèves à l’exclusion de celui des professionnels de l’éducation. Les personnels de l’Éducation nationale sont pourtant régulièrement confrontés dans le cadre de leur travail à des actes de violence raciste exercés par leurs pairs ou par leurs supérieur·es.
Pédagogie de la résistance : les lycées de Tucson et la lutte pour les Mexican-American studies
Authors: Souyri Émilie
Published: September 2021

Les crispations autour des études postcoloniales et plus largement des enjeux liés à la « race » en éducation en France rendent difficiles des réflexions précises et approfondies sur les pratiques éducatives qui se veulent décoloniales et/ou antiracistes ; de là l’importance d’étudier d’autres contextes. L’article d’Émilie Souyri revient sur les MAC ( Mexican-American Studies ) aux États-Unis, pour montrer la façon dont des programmes intégrant l’histoire et la culture des élèves issu·es de l’immigration et des communautés noires et autochtones peuvent changer le rapport des acteurs à l’École et susciter des débats internes qui visent à davantage d’inclusivité. Toutefois, même dans un tel contexte présentant des résultats positifs et encourageants, les ethnic studies font l’objet d’une diabolisation dans les discours politiques conservateurs et réactionnaires.
Questionner l’altérité et étudier en quoi elle nous transforme
Authors: Palmier Ann
Published: September 2021

Dans cette communication, une enseignante spécialisée opère un retour sur son cursus professionnel en mettant l’accent sur des rencontres d’élèves et des expériences qui ont jalonné son parcours et l’ont amenée à transformer son regard sur les apprenants et la pédagogie. Le propos, basé sur l’explicitation de savoirs d’expérience construits dans une pratique d’enseignement en établissement spécialisé, invite le lecteur à une réflexion sur l’abord de l’altérité en classe et sur les postures et formes de partenariat que l’auteure identifie comme étant nécessaires au développement d’une pédagogie inclusive.
La sociologie d’Émile Durkheim (1858-1917) : des pistes pour l’inclusion
Authors: Sembel Nicolas
Published: September 2021

La rencontre entre une thématique récente comme l’inclusion et un penseur classique comme Durkheim ne va pas de soi, au point de passer pour sans objet ou peu intéressante. Mais une lecture précise et innovante de l’œuvre de Durkheim en éducation ouvre au contraire des pistes stimulantes, notamment par le questionnement par l’inclusion. D’abord pour penser les prémisses enfouies de celle-ci ; ensuite pour alimenter la lecture innovante de Durkheim ; enfin pour revisiter l’histoire du système éducatif français et son universalisme. L’examen du rapport de Durkheim à sa trajectoire scolaire et universitaire (complétée par celui de Bourdieu), offre une lecture ancrée des écrits en sociologie de l’éducation. Ainsi relue, l’Éducation morale de Durkheim est un bréviaire pour un maître qui se révèlerait aujourd’hui acteur de l’inclusion, ouvre vers une sociologie générale de l’éducation, un universalisme et, au final, pose des jalons d’une révolution inclusive.
Asymptotic behavior of supercritical wave equations driven by colored noise on unbounded domains
Authors: Wang Bixiang
Published: September 2021

This paper deals with the asymptotic behavior of the non-autonomous random dynamical systems generated by the wave equations with supercritical nonlinearity driven by colored noise defined on \begin{document}$ \mathbb{R}^n $\end{document} with \begin{document}$ n\le 6 $\end{document}. Based on the uniform Strichartz estimates, we prove the well-posedness of the equation in the natural energy space and define a continuous cocycle associated with the solution operator. We also establish the existence and uniqueness of tempered random attractors of the equation by showing the uniform smallness of the tails of the solutions outside a bounded domain in order to overcome the non-compactness of Sobolev embeddings on unbounded domains.
Comment initier en mathématiques la production d’une notation et ses usages à partir de l’activité des élèves ?
Authors: Quilio Serge , Forest Dominique
Published: September 2021

Nous proposons de décrire, dans des dimensions à la fois langagières et non-langagières, comment un professeur enseigne des mathématiques dans des dispositifs où la production de concepts mathématiques et de notations est réalisée à partir de l’activité des élèves et sous sa direction. Nous rendons compte du début d’un enseignement des fractions au CM2 de l’école primaire et plus précisément de l’invention, par les élèves, d’un moyen de désigner des grandeurs très inférieures à l’unité comme l’épaisseur d’une feuille de papier (très inférieure au millimètre, dont la mesure nécessite déjà une règle à coulisse), la masse d’un clou (très inférieure au gramme, limite de sensibilité de la balance Roberval), la contenance d’un dé à coudre. Nous montrons comment un professeur parvient à constituer avec les élèves le fond commun des faits, des objets et des règles, c’est-à-dire un milieu pour l’étude.
Pensée et langage chez Karl Popper et Lev Vygotski
Authors: Firode Alain
Published: September 2021

Durant la dernière période de sa carrière Popper a développé une théorie évolutionniste de l’esprit dont les conclusions sont souvent proches des thèses du psychologue soviétique, Lev Vygotski. Les deux auteurs partagent en effet l’idée que le langage et le monde symbolique en général jouent un rôle déterminant dans la formation de l’esprit humain. Ils soulignent tous deux l’importance, dans le processus du développement mental, des interactions entre le psychisme et l’environnement linguistique et culturel. La théorie de Popper, cependant, fait apparaître une idée qui ne se trouve pas chez Vygotski, à savoir la thèse selon laquelle l’univers symbolique (le « monde 3 ») possède une réalité logique autonome, distincte de la réalité physique, psychologique ou sociale. Cette thèse, inconciliable avec le point de vue dialectique et matérialiste de Vygotski, introduit une différence profonde entre ces deux théories de l’esprit. Il s’ensuit que les analyses poppériennes, contrairement à celles de Vygotski, sont difficilement compatibles avec le paradigme constructiviste qui prévaut actuellement dans les recherches en éducation.
Au seuil de la classe, le maître E régule différentes temporalités
Authors: Ponté Pascale , Thomazet Serge , Mérini Corinne
Published: September 2021

En France, de nouveaux textes réorganisent le champ de la prise en charge des difficultés scolaires. Ces évolutions ont justifié une recherche que nous menons depuis trois ans sur le travail des maîtres E (enseignants spécialisés chargés de l’aide pédagogique) et ses vecteurs de transformations. Nous en présentons ici une partie centrée sur la gestion des temporalités. La construction de l’objet et la méthodologie ont été structurées en mobilisant la sociologie des organisations et la psychologie ergonomique, avec lesquelles se conjugue la philosophie. Le travail méthodologique a été mené dans un collectif de recherche. L’analyse des documents professionnels nous a permis de repérer des « points de tension professionnels » que nous avons explorés de manière plus détaillée lors d’entretiens d’autoconfrontation et de confrontations croisés. Nos résultats montrent que les maîtres E sont au seuil de la classe mais au cœur du dispositif de travail collaboratif et développent des stratégies propres pour répondre aux conflits de temporalité générés par les prescriptions.
A importância da checagem de entendimento mútuo em sequências de arranjos para encontros futuros nos atendimentos sociais a pessoas em situação de rua
Authors: Matos Lisboa Carla Mirelle de Oliveira , Ron-Ren Rony
Published: September 2021

À luz das contribuições teórico-metodológicas da Análise da Conversa, este artigo analisa dois episódios de arranjos de encontros futuros entre voluntários/as de uma ONG que presta assistência a pessoas em situação de rua ou vulnerabilidade social e assistidos/as. No primeiro, combinações para retorno à terra natal mostraram-se malsucedidas, mas orientaram modificações de ações dos/as voluntários/as no segundo episódio, bem-sucedido em arranjos para encaminhamento a atendimento psiquiátrico. Os objetivos do artigo são, primeiro, identificar que procedimentos podem contribuir para a não detecção de entendimentos que mais tarde se mostram divergentes e, segundo, discutir contribuições dessa experiência colaborativa nas abordagens de voluntários/as. Os resultados indicam que o uso de perguntas polares por parte dos/as voluntários/as não torna relevante respostas que evidenciem explicitamente o entendimento dos/as assistidos/as sobre os arranjos. Perguntas QU-, por sua vez, oportunizam a demonstração de entendimento das pessoas atendidas e podem ser localmente reparáveis, se necessário. Ademais, os resultados encontrados puderam promover não só o aprimoramento de abordagens sociais prestadas pela ONG como também implicaram entendimento, reflexão e aprimoramento de atendimentos semelhantes futuros.
Palavras-chave: Fala-em-interação; Trabalho Voluntário; Pessoa em Situação de Rua.
"Te:mos o serra cura::do, temos o ni:sa, temos o serpa do:p." Suggesting products to buy, shaping materiality and multisensoriality in shop encounters
Authors: Mondada Lorenza
Published: September 2021

Adopting the perspective of multimodal conversation analysis, the paper shows the methodic organization of an action, making suggestions, achieved by sellers in response to customers’ requests for recommendations in shop encounters, and involving the showing and listing of available products. This focus on a specific sequential environment and institutional ecology, enables an exemplary discussion of how this action is multimodally formatted, embedded in its context, and shaped in relation to objects as discursive referents as well as materialities to be pointed at, looked at, touched and sensed in multiple ways. More generally, this focus enables to address two sets of issues: on the one hand, it elucidates the nexus between action, institutionality and materiality, including the role of multisensoriality in engaging with the qualities of buyable objects. On the other hand, it addresses the nexus between action and referential practices for introducing and presenting new referents, within an interactional perspective locating these grammatical practices and their systematic features within their praxeological context. On the basis of video data recorded in a gourmet shop in Lisbon, Portugal, this double focus targets issues of sensoriality and socialization in food culture, as well as issues of grammar in interaction, casting some light on situated uses of the verb ter for introducing new referents.
 
 Keywords: Social Interaction; Shop Encounters; Multimodality and Multisensoriality.
The Effect of Individual Analytical Orientation and Capabilities on Decision Quality and Regret
Authors: Valadares de Oliveira Marcos Paulo , McCormack Kevin P. , Bronzo Marcelo , Trkman Peter
Published: September 2021

Decision makers are exposed to an increasing amount of information. Algorithms can help people make better data-driven decisions. Previous research has focused on both companies’ orientation towards analytics use and the required skills of individual decision makers. However, each individual can make either analytically based or intuitive decisions. We investigated the characteristics that influence the likelihood of making analytical decisions, focusing on both analytical orientation and capabilities of individuals. We conducted a survey using 462 business students as proxies for decision makers and used partial least squares path modeling to show that analytical capabilities and analytical orientation influence each other and affect analytical decision-making, thereby impacting decision quality and decision regret. Our findings suggest that when implementing business analytics solutions, companies should focus on the development not only of technological capabilities and individuals’ skills but also of individuals’ analytical orientation.
Analytical Models to Characterize Trade-Offs Between Technological Upgrading and Innovation
Authors: Liu Cathy Zishang , Chan Youn-Sha
Published: September 2021

We propose two analytical models to characterize the relationship between technological upgrading and innovation in the oil & gas industry. The first one is an “optimization model” which focuses on the trade-offs between profit maximization and environmental compliance cost. The other has been developed based on “predator-prey” model which captures the dynamics of biological systems. Our study contributes to the strategic planning process for sustainable development by providing the insight that optimal allocation process is determined by multiple operational factors, including a firm’s competitive ranking among its industrial competitors, industrial consent on the concurrent rate of return on capital investment, the projected demand of oil & gas in future, and a change in environmental compliance cost. Further, we add to the robustness of the optimal allocation process by providing binding conditions of the set of solutions.
A Patent Analysis on Big Data Projects
Authors: Grander Gustavo , Ferreira da Silva Luciano , Gonzalez Ernesto D. R. Santibanez
Published: September 2021

Studies concerning Big Data patents have been published; however, research investigating Big Data projects is scarce. Therefore, the objective of this study was to conduct an exploratory analysis of a patent database to collect information about the characteristics of registered patents related to Big Data projects. We searched for patents related to Big Data projects in the Espacenet database on January 10, 2021, and identified 109 records.. The textual analysis detected three word classes interpreted as (i) a direction to cloud computing, (ii) optimization of solutions, and (iii) storage and data sharing structures. Our results also revealed emerging technologies such as Blockchain and the Internet of Things, which are utilized in Big Data project solutions. This observation demonstrates the importance that has been given to solutions that facilitate decision-making in an increasingly data-driven context. As a contribution, we understand that this study endorses a group of researchers that has been dedicated to academic research on patent documents.
Extracting Entity Synonymous Relations via Context-Aware Permutation Invariance
Authors: Yan Nan , Huang Subin , Kong Chao
Published: September 2021

Discovering entity synonymous relations is an important work for many entity-based applications. Existing entity synonymous relation extraction approaches are mainly based on lexical patterns or distributional corpus-level statistics, ignoring the context semantics between entities. For example, the contexts around ''apple'' determine whether ''apple'' is a kind of fruit or Apple Inc. In this paper, an entity synonymous relation extraction approach is proposed using context-aware permutation invariance. Specifically, a triplet network is used to obtain the permutation invariance between the entities to learn whether two given entities possess synonymous relation. To track more synonymous features, the relational context semantics and entity representations are integrated into the triplet network, which can improve the performance of extracting entity synonymous relations. The proposed approach is implemented on three real-world datasets. Experimental results demonstrate that the approach performs better than the other compared approaches on entity synonymous relation extraction task.
Quantum Leap on the Way to the Energy Turnaround with Fuel Cells: Super-Thin Films of Graphite Bipolar Plates: Thin, Flexible and Highly Conductive
Authors: Hickmann Thorsten , Derieth Thorsten
Published: September 2021

Efficient bipolar plates are needed to store electricity from renewable energies. Here the focus is concentrating on graphite-compound-Bipolar plates, which are one of the most used components in a Fuel Cell Stack system. Among other things, polypropylene is a suitable matrix material, but other polymer materials such as PPS and PVDF and phenolic resins can also be considered. However, for a correspondingly high conductivity in the fuel cell system, the plastic must be filled with up to more than 80 % graphite. To ensure that the compound is not brittle afterwards and is as easy to process as possible, an impact modify cation was further developed that makes it possible to produce thin films.
Remitting seronegative symmetrical synovitis with pitting edema and polymyalgia-like syndromes following cancer immunotherapy with checkpoint inhibitors: causal link, potential association or else?
Authors: Manzo Ciro
Published: September 2021

Not available.
Factors influencing patients’ choice of clinic at Inanda, KwaZulu-Natal
Authors: Hlongwa Zethembiso C. , Mahomed Saajida
Published: September 2021

Background: In South Africa, patients are meant to attend the clinic close to their place of residence. However, patients often choose which clinic to attend, which results in overcrowding.Aim: This study aimed to investigate the structural and process factors influencing patients’ choice to attend a community health centre (CHC) in KwaZulu-Natal, South Africa.Setting: The study was conducted at the Inanda C Community Health Centre (CHC).Methods: Systematic random sampling was used to select study participants. A structured questionnaire was used to collect socio-demographic data and assess the factors influencing patients’ choice to attend this CHC.Results: There were 400 patients who participated. The commonest structural indicator that patients agreed on as the reason they attend Inanda C CHC was because it has enough medication (126, 73.3%). There was a significant difference in the proportion of patients who agreed that seeing a doctor instead of nurse was a reason for attending this clinic with 118 (68.6%) patients from within the catchment area and 170 (74.6%) from outside the catchment area. The commonest process indicators that patients from within and outside the catchment area agreed on as reasons for attending Inanda C CHC were ‘the doctor or nurse explains my sickness and treatment to me’ and ‘I get good quality of care’.Conclusion: The structural and process indicators that influence patients’ choice of clinic may need to be improved at other clinics in this area in order to decrease the overcrowding at this clinic.
123I-Meta-Iodobenzylguanidine Single-Photon Emission Computerized Tomography/Computerized Tomography Scintigraphy in the Management of Neuroblastoma
Authors: Biassoni Lorenzo , Privitera Laura
Published: September 2021

Neuroblastoma is the most common pediatric extracranial solid tumor. High-risk neuroblastoma is the most frequent presentation with an overall survival of approximately 50%. 123I-meta-iodobenzylguanidine (123I-mIBG) scintigraphy in the assessment of the primary tumor and its metastases at diagnosis and after chemotherapy is a cornerstone imaging modality. In particular, the bulk of skeletal metastatic disease evaluated with 123I-mIBG at diagnosis and the following chemotherapy has a prognostic value. Currently, single-photon emission computerized tomography/computerised tomography (SPECT/CT) is considered a fundamental part of 123I-mIBG scintigraphy. 123I-mIBG SPECT/CT is a highly specific and sensitive imaging biomarker and it has been the basis of all existing neuroblastoma trials requiring molecular imaging. The introduction of SPECT/CT has shown not only the heterogeneity of the mIBG uptake within the primary tumor but also the presence of completely mIBG nonavid metastatic lesions with mIBG-avid primary neuroblastomas. It is currently possible to semi-quantitatively assess tracer uptake with standardized uptake value, which allows a more precise evaluation of the tracer avidity and can help monitor chemotherapy response. The patchy mIBG uptake has consequences from a theranostic perspective and may partly explain the failure of some neuroblastomas to respond to 131I-mIBG molecular radiotherapy. Various positron emission tomography tracers, targeting different aspects of neuroblastoma cell biology, are being tested as possible alternatives to 123I-mIBG.
Development of a Peri-renal Urinoma in a Follow-up Patient with History Posttraumatic Peri-nephric Hematoma
Authors: Singh Tejesh Pratap , Sharma Anshul , Jaiswal Himanshu , Sethi R. S.
Published: September 2021

A 7-year-old male with a history of blunt trauma to the abdomen and diagnosis of perinephric hematoma in contrast-enhanced computed tomography (CT) presented with increasing peri-nephric collection (after ~1.5 months) in the serial ultrasound examinations. The patient was referred to the department of nuclear medicine for the assessment of this collection as well as renal function. In 99mTc-diethylenetriamine pentaacetate renal scintigraphy, progressively increasing radiotracer activity was noted inferolaterally to the left kidney, separated from the same by a photopenic area. Single-photon emission computed tomography/CT revealed a peri-nephric urinoma in relation to the previously diagnosed hematoma at the lower pole; which was communicating with the pelvi-calyceal system (PCS). Not only did the renal scintigraphy aid in the diagnosis of urinoma but it was also able to show that it was communicating freely with the PCS and that the rest of the renal parenchyma was functioning adequately. This multi-faceted assessment in a single investigation allowed clinicians to opt for the conservative management despite the increasing size of urinoma in the early follow-up.
A Rare Case of TENIS Presenting with SVC Thrombus - Highlighting the Role of PET-CT scan
Authors: Gadepalli Tejonath , Abubacker Zakir Ali , Bikkina Pratyusha , Pasupula Madhu Vijay
Published: September 2021

Thyroglobulin-elevated negative iodine scan (TENIS) syndrome represents a significant diagnostic and therapeutic challenge. Highly sensitive imaging modalities are required to help in the localization of disease, treatment planning, and prognostication. When compared to other imaging modalities, F-18 fluorodeoxyglucose positron-emission tomography–computed tomography has superior sensitivity and specificity in localizing the disease in this subset of patients. Tumor thrombus of thyroid cancer extending into the great vein is a very rare occurrence and management criteria have not been well established yet. We present a case of TENIS syndrome with tumor thrombus in the superior vena cava.
Can 18Fluoro-deoxy-glukose-Positron Emission Tomography/Computed Tomography be a Useful for Decision of Elective Surgery in Thoracic Aortic Aneurysm
Authors: Simsek Fikri Selcuk , Cayir Mustafa Cagdas , Arslan Muhammet , Yuksel Dogangun
Published: September 2021

Thoracic aortic aneurysm (TAA) should be treated before the complications with prophylactic surgery. However, important number of ruptures have been occurred below the cut-off size for surgery. In addition, in some cases, who in the cut-off value limit, decision of surgery may sometimes be difficult. 18Fluoro-deoxy-glukose positron emission tomography/computed tomography (18FDG-PET/CT) may useful such situations. We present a case that, TAA in 18FDG-PET/CT in a patient with larynx carcinoma. He had a TAA with near the cut-off value and increased metabolic activity in baseline imaging. After 3 months, SUVmax value increased and elective surgery was performed. We think that aneurysms may be another pathology that 18FDG-PET/CT potentially be useful apart from imaging malignant diseases.
Automated Radiosynthesis, Quality Control, and Biodistribution of Ga-68 Pentixafor
Authors: Watts Ankit , Chutani Surbhi , Arora Diksha , Madivanane Vasanth , Thakur Samiksha , Kamboj Monika , Singh Baljinder
Published: September 2021

Background:

Chemokine receptor CXCR4 is overexpressed in more than 27 different human tumors that make it a promising target in oncology. Ga-68 Pentixafor is the most promising positron emission tomography tracer for imaging CXCR4 receptors; hence, the present study was carried out to optimize the radiosynthesis of Ga-68-Pentixafor using fully automated method and the quality control (QC) checks were performed before being used as a clinical product. We also studied the normal biodistribution pattern of Ga-68-pentixafor intended for the use in variety of malignancies.

Materials and Methods:

We optimized the automated radio-synthesis of Ga-68 Pentixafor under good manufacturing practice conditions. A total of 62 productions were carried out in a span of 4 years. Extensive QC tests were performed to check for potency, identity, efficacy, and stability of the tracer. Biodistribution of Ga-68 Pentixafor was investigated in a healthy volunteer to determine normal range of standardized uptake valuemaximum (SUVmax) values in various organs.

Results:

The radiotracer was prepared successfully in 57/62 productions with radiochemical purity of >99%. Mean radiolabelling efficiency of 73.1% ± 7.7% (n = 57) was obtained with synthesis time approximatively of 34 min. The radiolabeled complex showed no signs of dissociation up to 4 h at the room temperature. Ga-68 Pentixafor upon incubation with human serum was found to be stable at 37°C for 4 h. The highest normal organ uptake was seen in urinary bladder (SUVmean = 146.0), spleen (SUVmean = 6.80) followed by kidneys (SUVmean = 4.99).

Conclusion:

Using the automated radiosynthesis, Ga-68 Pentixafor exhibited good radiolabelling efficiency with excellent in vitro and in vivo stability and favorable biodistribution showing clinical applicability of the tracer.
18F-fluorodeoxyglucose Positron Emission Tomography/Computed Tomography in Postsurgical and Postprocedural Setting in Thorax and Abdominopelvic Malignancies
Authors: Agrawal Archi , Prakash Anjali , Choudhury Sayak , MV Manikandan , Jain Yash , Purandare Nilendu , Puranik Ameya , Shah Sneha , Rangarajan Venkatesh
Published: September 2021

This pictorial essay depicts normal appearances, complications and residual or recurrent disease on fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) studies in the postsurgical and postprocedural setting, other than head and neck malignancy. Reading and reporting FDG PET/CT in this scenario is daunting due to the multiple confounding false positives seen during this period. This article which is the second part in this series will familiarize the readers with the normal appearance and pitfalls seen in FDG PET/CT studies in thoracic and abdominopelvic malignancies during the postoperative and postprocedural period so as to avoid misinterpretations.
Physiologic Testicular Uptake of 18-F Fluorodeoxyglucose in the Indian Population
Authors: Parida Girish Kumar , Muthu Gopal Sonai , Suman Akchata , Kumar Abhishek , Mitra Sujata
Published: September 2021

Objective:

The objective of the study is to assess the physiologic uptake of testes in patients undergoing 18F-fluoro-2-deoxyglucose (FDG) position emission tomography/computed tomography (PET/CT) scans for various malignancies other than testicular malignancy.

Materials and Methods:

The testicular uptake of 18F-FDG expressed as the standardized uptake value (T) was measured on PET/CT images in 320 men with no known testicular pathology from July 2019 to March 2020 at Tata Main Hospital, Jamshedpur. The ratio of maximum standardized uptake value (SUVmax) of the testis (T) to SUVmax of muscle (M) T/M ratio and to SUVmax of the liver (L) T/L ratio was calculated using SUVmax of right adductor muscle and liver, respectively. Testicular volume was calculated with the measurements taken from the axial, coronal, and sagittal slices of CT images. The correlation of testicular uptake with age, blood serum glucose level, and testicular volume was also analyzed.

Results:

The mean age of 320 men was 57 ± 15 years (range: 10–94) and the mean blood glucose level was 107.7 ± 23.5 mg/dl (range: 64–175). Mean testicular SUVmax in 320 men was 2.48 ± 0.80 (range: 0.67–5.5). The mean testicular volume of 640 testes of 320 men was 18.80 ± 4.83 cm3 (range: 3.85–33.56 cm3). The mean values of (T/M) and (T/L) ratios in the studied population were 3.64 ± 1.21 (range: 1.08–5.58) and 0.97 ± 0.251 (range: 0.34–1.88), respectively. The laterality index (L − R/(L + R) ×2) in 320 men was 0.074 ± 0.050 (0.000–0.308). There was a minimal negative correlation between testicular SUVmax and age (r = −0.136, P = 0.15). Mild negative correlation was noted between T/M ratio and age (r = −0.291, P < 0.0001) and between T/L ratio and age (r = −0.182, P = 0.001) in the studied population.

Conclusion:

The physiological testicular FDG uptake (SUVmax) of testes was 2.48 ± 0.80 (0.67–5.5) among the Indian population in this study, which has a mild negative correlation with age.
Installation and Optimization of 68Ga Synthesis Module for Clinical Use
Authors: Tayal Sachin , Ali Abbas , Kumar Vikrant , Jha Ashish Kumar , Gandhi Arun
Published: September 2021

Introduction:

With advent of gallium-labeling somatostatin analogs and its evaluation under positron emission tomography–computed tomography, there has been a tremendous surge in its application. Gallium 68 can be made available either from onsite cyclotron production or in the form of ready-to-use 68Ge/68Ga generators. Wherein setting up and running of cyclotron amounts to huge investment and dedicated team, the 68Ge/68Ga generator has proved to be a better option and viable project. Moreover, due to long half-life of 68Ge, i.e. 271 days, it enables the usage of generator for several months. The preparation of gallium-labeled peptides is much simpler in comparison to 18F radiochemistry, but the radiation exposure has always been an area of concern owing to high-energy annihilation photon of 511 keV.

Materials and Methods:

In this study, we share our experience of self-installation of 68Ge/68Ga generator during lockdown and the various steps involved in installation of fully automated peptide-labeling system in customized mini hot cell module, synthesis steps, and quality control steps of gallium-based radiopharmaceutical.

Results:

The installation was successfully completed with online assistance during the pandemic situation. The average elution yield met company specification (>80%), and 68Ga-labeled peptides were prepared with high radiochemical purity (>95%). The overall exposure in single batch of production and quality control never exceeded 3 μSv as shielding was well-taken care of with customized mini hot cell.

Conclusion:

With the described experience and validation process, one can easily think of making an installation at his/her center and cater to the needs of society with a new radiopharmaceutical.
Proliferative Capacity of Retinal Progenitor Cells in Human Fetal Retina
Authors: Mane Prakash , Sabnis Anjali Satyen
Published: September 2021

Introduction:

Retina is an innermost, delicate, and photosensitive layer of the eyeball, which is composed of 10 layers and 8 specialized cells which are involved in paramount function of the body like vision. Retinal neurogenesis commences from the layers of optic cup, which forms from optic vesicle. Progenitor cells are the tissue-specific cells which give rise to all different types of retinal cells. Progenitor cells in fetal retina proliferate at specific time during development of retina. Knowledge of the highest proliferative capacity interval of progenitor cells will be valuable for transplantation.

Material and Methods:

Twenty-eight fetuses of spontaneous abortions of 13th–40th week were collected from MGM Hospital after ethical and scientific approval of the institute. After fixation of fetuses, eyeballs were extracted and fixed in buffer solution. Sections were taken and the retina was treated with Ki-67 immunohistochemistry marker to observe proliferative capacity of retinal progenitor cells (RPCs). Seven groups (A to G) of 4 weeks were made and observations of each group were noted.

Results:

It was observed that the highest proliferative capacity of RPCs was in B group (17–20 weeks) and the highest proliferative capacity of RPCs was maximum at 19th week of gestation.

Discussion and Conclusion:

Characteristics of progenitor cells in retina are well studied. Their highest proliferation period can be utilized to make the procedure of transplantation more refined.
Anophthalmic Cyclopia with Proboscis, Acardia, Amelia, Sirenomelia – Case Report
Authors: Markose Bini , Shastri Deepti , Rajesh B. , Koshy Jinu Merlin
Published: September 2021

True or primary anophthalmic cyclopia is an extremely rare and severe malformation of eye. It is the apparent absence of eyeball in a median orbit and it results from failure of the optic vesicle (optic primordial) to form from the cerebral or prosencephalic vesicles. Proboscis is a skin-covered median tubular appendage above the anophthalmic median orbit. It results from the defective development of the olfactory placodes. Sirenomelia, or mermaid syndrome, is a rare abnormality characterized by complete or incomplete fusion of lower limbs. Acardiacus is a fatal complication of monozygotic twin pregnancy. The acardiacus maintains its circulation through the heart of its normal twin reversed arterial perfusion mate. This manuscript reports on a severely malformed monozygotic stillborn twin with anophthalmic cyclopia, proboscis, acardia, absence of upper limb, sirenomelia, and aprosencephaly; agenesis of diaphragm, respiratory system, genitourinary system, lymphatic system, endocrine system, and external genitalia; and intestinal atresia, liver atresia, vascular atresia, hypoplastic skeletal system, and muscular system. In general, in all these fetal abnormalities, there are various degrees of malformation causing group of groups of anomalies. Probable cause of these anomalies is discussed.
Three-Dimensional Evaluation of Maxillary Sinuses in the Turkmen Population, North Of Iran
Authors: Mollaali Arash , Gharib Mohammad Hadi , Ghorbani Jahangir , Golalipour Mohammad Jafar
Published: September 2021

Introduction:

Understanding the variation in the size and shape of the paranasal sinuses in detail is a clinically relevant matter for sinusitis patients. This study was performed to determine the right and left maxillary sinus dimensions by computed tomographic (CT) scan based on gender in the Turkmen ethnic groups in Gorgan, northern Iran.

Material and Methods:

In this descriptive-analytical study, 100 Turkmen subjects (50 males and 50 females) aged 18–45 were measured with 2 mm and 3 mm slices in the coronal and Axial Planes by the CT scanner SOMATOM Emotion of the multi-slice from the SIEMENS model and using the “Syngo software Siemens.”

Results:

Maximum width, height, and volume of right and left maxillary sinuses in the Turkmen ethnic group were more in males than females (P < 0.05). In the right maxillary sinus; the mean maximum of width in males and females was 29.6 ± 4.91 mm and 26.53 ± 5.26 mm, respectively (P < 0.05). The mean maximum height in males and females was 40.5 ± 4.27 mm and 38.16 ± 5.96 mm, respectively (P < 0.05). In the left maxillary sinus, the mean maximum width in males and females was 29.61 ± 4.31 mm and 26.79 ± 5 mm, respectively (P < 0.05). The mean maximum height in males and females was 40.46 ± 4.55 mm and 38.03 ± 5.4 mm, respectively (P < 0.05). Discussion and

Conclusion:

Understanding the dimensions of the maxillary sinuses helps for better diagnosis and treatment of patients with maxillary sinuses diseases.
Particle Matter Index and Fuel Wall-wetting Relations on Stochastic Pre-ignition
Authors: Boronat Colomer Vicente , Splitter Derek , Neupane Sneha , Partridge William
Published: September 2021

This work explores the effect of the particle matter index (PMI) and aromatic content on fuel wall impingement associated with stochastic pre-ignition (SPI). Statically significant measurements of SPI rates are directly coupled with laser induced florescence (LIF) measurements of fuel dilution from spray-linear impingement. Literature suggests that PMI is could be correlated with the number of SPI events, but the root cause(s) of PMI and SPI are directly causational or are a predicator of SPI. Three fuels have been used in this study with 3 different PMI and two different aromatic contents. The fuels are direct injected at two different injection timings, an earlier injection timing which initially targets the piston crown, 310°CA bTDC, and a later injection timing that the liner, 220°CA bTDC start of injection timings (SOI) respectively. The earlier 310 SOI injection increases soot, whereas the later 220°CA SOI targets the liner and increases wall-wetting. The findings of this work highlight that the SPI activity has a weak correlation with the soot promoted by the combustion process and increased PMI. However, SPI activity shows a strong dependency with high levels of oil dilution and aromatic content, suggesting that PMI might be an indicator of fuel chemistry conducive to SPI and the soot from increased PMI fuels is not a strong source of SPI relative to fuel wall wetting.1
Study Visits as a Method of Professional Motivation Formation in Future Choreographers
Authors: Tereshenko N. V. , Medvid T. A. , Grek V. A. , Lugovenko T. H.
Published: September 2021

The article presents the results of the studying the effect of the study visits method on the formation of professional motivation in second-year students majoring in specialty 024 "Choreography". Group balancing was performed by random selection according to age, gender and levels of choreographic training. The experiment was conducted in accordance with the pattern "Before-after with the control group". The study visits method of famous choreographers was used to conduct master classes with students of the experimental group. Rean's technique (adapted by the author) is used to diagnose the students' level of professional motivation. Pearson's coefficient and χ2 - Pearson's criterion were used to calculate the relationships between factor and result features, as well as to define the statistical significance of the data obtained. The study visits' motivational potential in the course of training future choreographers is revealed: in the experimental group in comparison with the control group there was a significant increase in motivation. The correlation between the growth of motivation and the increase of the level of the students' choreographic training is revealed. The analysis of students' essays was carried out, which established the content of students' motivational intentions for future professional activity. The role of transgression as a phenomenon of shaping the choreography students' motivation under the influence of encounters with artists is brought forward, which should be subject to further research.
CNC Kumaş Kesim Makinesindeki Krank-Biyel Mekanizmasının Kinematik Analizi ve Kesici Bağlantı Uzunluklarının Performansa Etkisi
Authors: ATAKÖK Gürcan , BALCİ Sezgin
Published: September 2021

Krank - biyel mekanizmaları, kullanım alanı çok geniş olan bir hareket mekanizmasıdır ve basit, kullanışlı olması dolayısıyla çok katlı materyalleri kesme makinelerinde oldukça tercih edilmektedir. Bu mekanizmaya dayanan kesme sistemlerinde, kesme hızını arttıran parametrelerden biri olan krank uzunluğu değişiminin sisteme olan etkilerini görmek için Matlab / Simulink ile simülasyon gerçekleştirilmiştir. Ayrıca çok katlı serilmiş materyalleri kesmek için kullanılan kesme makinesinin kesici mekanizmasının kinematiği incelenmiş, hareketi analiz edilmiştir. Krank-biyel uzuvlarının optimum boyutları, karmaşık sayıların kullanılarak çıkarıldığı denklemlere göre belirlenmiştir. Çıkarılan boyutlar ve hareket denklemleri, Matlab / Simulink ile modellenerek karakteristik eğriler elde edilmiştir. Yapılan analizler sonucunda, çok katlı serilmiş materyalleri kesme makinesi için uygun krank - biyel kol uzunluğu bulunmuştur.
Assessment of the extent of possible damage by mudfl ows to the Verkhne-Chegemskoye rural settlement (Chegem River basin, Central Caucasus)
Authors: Шерхов А.Х. , Гергокова З.Ж.
Published: September 2021

Рассматриваются вопросы обеспечения безопасности территорий горных поселений и объектов инфраструктуры в условиях изменения в результате потепления климата гляциальной обстановки в верховьях селеносных рек. Представлены результаты проведенного исследования, которые показывают, что селевые риски и опасности в сложившейся обстановке не только останутся актуальными в обозримом будущем, но и, по всей вероятности, возрастут.

The issues of ensuring the security of the territories of mountain settlements and infrastructure facilities, in the conditions of changes, as a result of climate warming, of the glacial situation in the upper reaches of mudfl ow rivers are considered. The results of the conducted research are presented, which show that mudfl ow risks and dangers in the current situation will not only remain relevant in the foreseeable future, but also, in all probability, will increase.
Industrial stones of the Northern Caucasus: (marble, decorative limestone)
Authors: Газеев В.М. , Герасимов В.Ю. , Гурбанов А.Г. , Гурбанова О.А.
Published: September 2021

На основании изучения геологических отчетов и публикаций охарактеризованы поделочные камни Северного Кавказа осадочного и метаморфогенного происхождения. Приведено краткое геологическое описание наиболее типичных месторождений мрамора и декоративного известняка. Рассмотрены возраст образования и цветовая палитра камней этого типа. Определены территории и геологические разрезы, благоприятные для их поисков

Based Based on the study of geological reports and publications, the ornamental stones of the North Caucasus of sedimentary and metamorphogenic origin are characterized. A brief geological description of the most typical deposits of marble and decorative limestone is given. The age of formation and the color palette of stones of this type are considered. The territories and geological sections favorable for their search are determined
The Adaydon Necropolis is a monument of the Late Bronze – Early Iron Era in the Zaramag highland basin of the Greater Caucasus
Authors: Чшиев В.Т.
Published: September 2021

В статье рассматриваются материалы Адайдонского некрополя кобанской археологической культуры, расположенного в высокогорной части РСО-А, в Зарамагской межгорной котловине: особенности погребального обряда данного памятника, датировка, инвентарь, планиграфия.

The article considers the materials of the Adaydon necropolis of the Koban archaeological culture, located in the high-mountainous part of the RNO-A in the Zaramag inter
FROM THE HISTORY OF ETHNOGRAPHIC OSSETIAN STUDIES: SAVELIY (GAGUDZ) KARGINOV
Authors: Гостиева Л.К.
Published: September 2021

В статье освещаются малоизвестные вехи биографии, трагическая судьба и деятельность С.Г. Каргинова в области этнографического осетиноведения. Проанализированы информативные этнографические статьи и очерки, опубликованные героем статьи в периодической печати Кавказа в конце ХIX – начале XX в. Рассмотрены его фольклорные материалы, публицистические очерки. Показан вклад, который внес С.Г. Каргинов в изучение этнографии осетин

The article highlights little-known milestones in his biography, the tragic fate and activities of S.G. Karginov in the fi eld of ethnographic Ossetian studies. Informative ethnographic articles and essays published by the hero of the article in the periodicals of the Caucasus in the late 19th - early 20th centuries are analyzed. Considered his folklore materials, publicistic essays. The contribution made by S.G. Karginov in the study of the ethnography of the Ossetians.
Evaluación de la percepción del liderazgo de los trabajadores en una institución educativa según la norma ISO 9001:2015
Authors: Sotelo Asef Jesús Gullermo , Figueroa González Ernesto Giovani , Figueroa González Ernesto Giovani
Published: September 2021

El objetivo de la presente investigación es evaluar la percepción de la variable liderazgo y tres de sus dimensiones en una institución educativa. Para ella se elaboró un instrumento de medición para recabar la información requerida. Es un estudio no experimental, transversal, cuantitativo, de tipo descriptivo y correlacional. Se realizó el análisis de confiabilidad del instrumento mediante el coeficiente alfa de Cronbrach, donde se obtuvo un valor de .954, así mismo se hace un procesamiento de los datos basado en el coeficiente de correlación de Pearson y Spearman para identificar las correlaciones de la variable y sus dimensiones (liderazgo y compromiso, política y roles, responsabilidades y autoridades en la organización), existiendo correlación positiva entre ellos.

Abstract

The objective of this research is to evaluate the perception of the leadership variable and three of its dimensions in an educational institution. For this purpose, a measurement instrument was developed to collect the required information. It is a non-experimental, cross-sectional, quantitative, descriptive and correlational study. The reliability analysis of the instrument was carried out by means of Cronbrach's alpha coefficient, where a value of .954 was obtained, and the data was processed based on Pearson and Spearman's correlation coefficient to identify the correlations of the variable and its dimensions (leadership and commitment, policy and roles, responsibilities and authorities in the organization), with a positive correlation between them.
A Critical Review on Ashvattha Leaves (Ficus Religiosa Linn.): An Ayurvedic Perspective and Current Practice
Authors: Ashish Kumar Gupta  , Shalini Gupta  , Charu Bansal
Published: September 2021

Ficus religiosa is large deciduous tree also known as the Bodhi vraksha, often planted near temples or religious places. In Indian subcontinent it is also said that this is the mythical 'World Tree' or the 'Tree of Life'. Through the ancient times it is widely being used to treatment of various diseases like constipation, dysentery, skin diseases, heart diseases, snakebite. But this knowledge still scattered and unelaborated. Various pharmacological studies have been done to explore the chemical constitution of different parts of Ashvattha. They found campestrol, stigmasterol, isofucosterol, α-amyrin, lupeol and different kind of Amino acids etc especially in leaf. various Ayurvedic texts describe about Ashvattha with their aspect. Ashvattha kept in Ayurvedic classics in different Ganas/ Mahakashyas /Vargas like Kaidav Nighantu kept in Ausadhi Varga Madanpal Nighantu-Vatadi Varga, Raj Nighantu- Amrutadi Varga etc. Numbers of Ayurvedic studies are available to explore different properties of Ashvattha. It has Guru, Ruksha, Seet, Kashya properties, Sita, Pitta-Kaphahara, Vranaropak property. It is also important constituent of various Ayurvedic preparations like Shankha Vati, Chandraprabha Vati, Kaminivindravan Rasa. Recent research also shows Hypoglycemic activity, Hypolipidemic activity, anti-microbial and anti-viral activities, wound healing activity, anti- oxidant, anti-convulsant activity, immunomodulatory activity, anti-ulcer activity, anti-cancer activity, anti-inflammatory and analgesic activities, anti-asthmatic activity, anti-acetylcholinestrase activity. These details are available in scattered way in different places. In this review article maximum possible information reviewed and collectively presented in concise form. This may be helps full to explore the holistic approach of the Ashvattha.