bluuebunny/crossref_metadata_2025 huggingface dataset:
Prediction of the critical conditions for dynamic recrystallization in metals
Authors: Gottstein G. , Brünger E. , Frommert M. , Goerdeler M. , Zeng M.
Published: February 2022

Engineering approaches to model dynamic recrystallization (DRX) explicitly assume the existence of a critical strain for DRX. Since the strain is not a state variable of crystal plasticity, however, there is no critical strain, rather there are critical conditions for microstructural instability. It was proposed recently that these critical conditions can be expressed in terms of a point of inflection on the θ(σ) curve, where σ is the flow stress and θ is the hardening rate. A theoretical framework is presented to predict these critical conditions on the basis of a dislocation work hardening model. Once tuned to a specific hardening curve the model allows to predict the onset of DRX for different temperatures and strain rates, and, in principle, for changing materials chemistry.
Thermodynamic assessment of the Pd–Zr system
Authors: Du Zhenmin
Published: February 2022

The Pd–Zr system has been critically assessed by means of the CALPHAD technique. The solution phases (liquid, body-centered cubic (Zr), face-centered cubic (Pd) and hexagonal close-packed (Zr)) were modeled with the Redlich – Kister equation. The intermetallic compounds Pd3Zr and γPdZr, which have a homogeneity range, were treated as the formulae (Pd, Zr)3(Pd, Zr) and (Pd, Va)(Pd, Zr) by a two-sublattice model with Pd and Zr or Pd and vacancies, denoted Va, on the first sublattice, Pd and Zr on the second one, respectively. Both compounds Pd2Zr and PdZr2 having a tetragonal MoSi2-type structure were treated as one phase with the formula PdZr(Pd, Zr) by a three-sublattice model with Pd on the first sublattice, Zr on the second, and Pd and Zr on the third one, respectively. The others were treated as stoichiometric compounds. A set of self-consistent thermodynamic parameters of the Pd–Zr system was obtained.
The rhetorical neuroscience of style: On the primacy of style elements during literary discourse processing
Authors: Burke Michael
Published: February 2022

Much work has been conducted in the social psychological sciences both modelling and predicting how the storage and retrieval of images and words in the mind operate (e.g. Baddeley 1974, 2000, Damasio 1999, Barsalou 1999). The focus has largely been on the interactions between short-term and long-term regions of memory. Such studies have also on occasion been complemented by behavioural experiments. More recently, a growing body of work has started to emerge from the biological cognitive neurosciences which looks at these same processes with the aid of scanning technologies (e.g. Dehaene 2003, 2009, Ledoux 1998, Eichenbaum 2011). The questions that will be considered in this paper are can these scientific findings be extended to aesthetic objects that are studied in the humanities, and in particular to the style of literary texts, and also can the way literary style figures operate shed light on how the mind and brain might function.
High data-rate two-three inputs all-optical AND gate based on FWM in highly nonlinear fiber
Authors: Sabbar Adnan , Abdulnabi Saif Hasan , Fakhruldeen Hassan Falah
Published: February 2022

In this paper, two-and-three channel all-optical AND logic gates based on four-wave mixing in a highly nonlinear fiber for 120 Gbps on–off keying signals were designed, simulated, and investigated. Simulation results show low bit error rate and consequently fairly high Q-factor at the receiving end in both two and three inputs AND gates, as well as the logic operation, is confirmed by the open eye diagrams with moderate power penalties for both designs.
A 7-year-old boy with central diabetes insipidus presenting with thickened pituitary stalk and anti-rabphilin-3A antibody positivity
Authors: Morota Kazutaka , Tadokoro Hiroaki , Sawano Kentaro , Watanabe Kenichi , Iwata Naoko , Fujisawa Haruki , Suzuki Atsushi , Sugimura Yoshihisa , Nagasaki Keisuke
Published: February 2022

Objectives

A highly invasive pathological diagnosis is necessary to differentiate central diabetes insipidus (CDI) with a thickened pituitary stalk. Lymphocytic infundibulo-hypophysitis (LIH) due to autoimmune involvement of the pituitary stalk is a differentiating disease, and anti-rabphilin-3A antibody (Rab3A-Ab) positivity was recently reported.

Case presentation

A 7-year-old boy was diagnosed with CDI after having polyuria for two months. He showed growth hormone deficiency with reduced growth rate. Brain magnetic resonance imaging (MRI) revealed a thickened pituitary stalk. The placental alkaline phosphatase level of the cerebrospinal fluid, tumor marker for germ cell tumors, was below the level of sensitivity. No skin or bone findings suggestive of Langerhans cell histiocytosis were detected. Eight months after CDI onset, Rab3A-Ab was positive, and MRI showed shrinking of the thickened pituitary stalk, leading to the diagnosis with LIH.

Conclusions

Rab3A-Ab is a useful adjunctive diagnostic tool for childhood-onset LIH.
The pragmatics of surprise-disapproval questions: An empirical study
Authors: Trotzke Andreas , Czypionka Anna
Published: February 2022

In this paper, we investigate a type of non-canonical question that is not information-seeking, but rather expresses the speaker’s surprise and/or disapproval with respect to the event denoted by the propositional part of the question. Our work is empirically based on claims that have been put forward in the syntactic literature, and our study aims at empirically assessing those theoretical claims about the illocutionary status of surprise-disapproval questions by exploring their pragmatics.
Acute Effects of Anodal Transcranial Direct Current Stimulation in Resistance and Power Exercises: A Brief Review for Coaches and Practitioners
Authors: Lattari Eduardo , Oliveira Bruno Ribeiro Ramalho , Márquez Gonzalo
Published: February 2022

The purpose of this brief review is to provide information about the effects of transcranial direct current stimulation (tDCS) on performance in resistance and power exercises commonly used by the strength and conditioning community. The authors aimed to identify all publications investigating the effects of tDCS on performance with dynamic constant external resistance and power exercises. The performance was analyzed based on the training volume, as the number of repetitions performed in an absolute or relative load (1 RM—%). In addition, the peak power output was also analyzed as a secondary outcome. Based on the eligibility criteria, 13 studies were found. The results showed that applying anodal tDCS on the left dorsolateral prefrontal cortex increased the training volume in exercises commonly used by the strength and conditioning community. However, anodal tDCS does not increase peak power output in upper and lower limbs. A discussion integrating tDCS into the resistance training based on the particular stimulated area was provided. Furthermore, this review provided some practical recommendations for the application of tDCS by coaches and practitioners of strength and conditioning.
Critical heat fluxes during boiling under capillary transport conditions in two-phase thermostabilization systems
Authors: Melnyk R. S. , Kravets V. Yu. , Lipnitsky L. V.
Published: February 2022

The increase in heat generated by electronic components requires a need to expand the range of two-phase heat exchangers for thermal stabilization of the components. The efficiency of the two-phase systems (heat pipes, steam chambers) can be improved by using metal-fiber capillary-porous structures. Experimental studies for the conditions close to the operating conditions of heat pipes and vapor chambers described in known publications are rather incomplete. The aim of this study is to determine the boundary heat fluxes for water boiling on porous structures under capillary soaking, to investigate the influence of saturation pressure and structural parameters on the boundary heat fluxes, and to determine the optimal structural parameters of porous samples, i.e. such parameters that would allow the highest possible values of critical heat fluxes under given conditions.
The authors investigate 0.3 and 0.5 mm thick capillary structure samples made of copper fibers with a diameter of 10 to 50 μm and a porosity range of 65—85%.
The study has found that reducing the saturation pressure from 0.1 to 0.012 MPa leads to a decrease in the boundary heat flux values by 15—40%, depending on the effective pore diameters. The study allowed establishing that the maximum heat flux values are achieved for the samples with an effective pore diameter of 60 to 80 μm. It was also found that for the 0.5 mm thick samples, the boundary heat fluxes are 5—20% higher than for the 0.3 mm thick samples.
The decrease in saturation pressure has been found to lead to a decrease in the range of two-phase heat exchange systems. For a number of samples, the authors have obtained the optimal effective pore diameters ensuring the highest critical heat flux values in the studied range.
Bullous Pemphigoid in Children: Clinical Presentation, Pathology and Management
Authors: Oumeish Faris , Hamad Hamdi , Tukmatchy Hussain , Scully Niall , Al Abadie Mohammed
Published: February 2022

Bullous pemphigoid rarely presents in childhood age group and when it presents it has two age peaks infantile and childhood forms. Key presenting features of childhood BP include subepidermal blistering, eosinophilia and severe itching.The histological features of bullous pemphigoid are the same as those described in adulthood and vary with the age of the lesion.Childhood BP tends to have a generally good prognosis with appropriate therapy Keywords: Bullous Pemphigoid; Autoimmune Disorders; Blistering Diseases
Extracellular vesicles improve embryo cryotolerance by maintaining the tight junction integrity during blastocoel re-expansion
Authors: Sidrat Tabinda , Khan Abdul Aziz , Joo Myeong-Don , Xu Lianguang , El-Sheikh Marwa , Ko Jong-Hyuk , Kong Il-Keun
Published: February 2022

Cryopreservation is a process in which the intact living cells, tissues, or embryos are preserved at subzero temperatures for preservation. The cryopreservation process highly impacts the survival and quality of the in vitro-produced (IVP) embryos. Some studies have highlighted the use of oviduct extracellular vesicles (EVs) to improve the cryotolerance of IVP embryos but the mechanism has not been well studied. The present study unravels the role of in vitro cultured bovine oviduct epithelial cells-derived EVs in improving the re-expansion and hatching potential of thawed blastocysts (BLs). The comparison of cryotolerance between synthetic oviduct fluid (SOF) and SOF + EVs-supplemented day-7 cryopreserved BLs revealed that the embryo’s ability to re-expand critically depends on the intact paracellular sealing which facilitates increased fluid accumulation during cavity expansion after shrinkage. Our results demonstrated that BLs cultured in the SOF + EVs group had remarkably higher re-expansion (67.5 ± 4.2%) and hatching rate (84.8 ± 1.4%) compared to the SOF group (53.4 ± 3.4% and 63.9 ± 0.9%, respectively). Interestingly, EVs-supplemented BLs exhibited greater influence on the expression of core genes involved in trophectoderm (TE) maintenance, formation of tight junction (TJ) assembly, H2O channel proteins (aquaporins), and Na+/K+ ATPase alpha 1. The EVs improved the fluid flux and allowed the transport of H2O into an actively re-expanded cavity in EVs-cultured cryo-survived BLs relative to control BLs. Our findings explored the function of EVs in restoring the TE integrity, improved the cell junctional contacts and H2O movement which helps the blastocoel re-expansion after thawing the cryopreserved BLs.
ПРО ОСОБЛИВОСТІ ДЕФОРМУВАННЯ ТРІЩИНИ МІЖ ДВОМА П’ЄЗОЕЛЕКТРИЧНИМИ МАТЕРІАЛАМИ
Authors: Левченко М. С. , Гергель І. Ю. , Лобода В. В.
Published: February 2022

У плоскій та просторовій постановках досліджується біматеріальне тіло складене, із двох різнорідних п’єзоелектриків. Вважається, що на межі поділу матеріалів виникла електроізольована тріщина, береги якої вільні від навантажень. Спочатку вважається, що довжина тріщини набагато менша від розмірів тіла, тому останнє розглядається як нескінченно велике. В такій постановці будується аналітичний розв’язок поставленої задачі шляхом її зведення до задачі лінійного спряження. Далі для випадку скінченної області розв’язок будується за допомогою методу скінченних елементів, як для плоского, так і для просторового випадків. Знаходяться поля напружень, розкриття тріщини та стрибки електричного потенціалу при переході через тріщину. Проведено порівняння результатів, отриманих різними методами і встановлено їх добру узгодженість.
ТРАНСФОРМАЦІЯ КІЛЬЦЕВОГО ЗАЗОРУ МІЖ ПІВПРОСТОРОМ І ЖОРСТКОЮ ОСНОВОЮ ПІД ДІЄЮ РОЗПОДІЛЕНИХ ПО КОЛУ СТОКІВ ТЕПЛА
Authors: Микитин М. М. , Мартиняк М. Р. , Середницька Х. І.
Published: February 2022

Досліджено ефект локального кільцевого розшарування між пружним півпростором і жорсткою основою під дією стоків тепла, розподілених по колу і розташованих у півпросторі на деякій відстані від його поверхні. Сформульовану контактну задачу термопружності зведено до сингулярного інтегрального рівняння відносно висоти кільцевого зазору між тілами. На основі отриманого числового розв’язку проаналізовано залежності висоти і ширини зазору та контактного тиску зовні зазору від інтенсивності стоків тепла та радіуса кола, по якому вони розподілені.
Determination of Individual Taxpayer Compliance in Indonesia: A Case Study
Authors: Anggadini Sri Dewi , Surtikanti Surtikanti , Bramasto Ari , Fahrana Egi
Published: February 2022

A citizen is required to comply with this obligation to pay taxes following the provisions of a country's applicable legislation. This study aims to test the impact of tax knowledge, modernize tax administration and taxpayer awareness, and determine which factors have the most significant impact on taxpayer compliance. The study's research method is descriptive and confirmatory analysis with a quantitative approach, with many samples consisting of 100 respondents. The results show that taxpayer compliance in tax settlement is inextricably linked to factors such as Tax Knowledge, Modernization of the Tax Administration System, and Taxpayer Awareness. It is possible to conclude that Tax Knowledge has a significant positive impact on Taxpayer Compliance. The modernization of the tax administration system has a significant positive effect on taxpayer compliance. Taxpayer Awareness has a significant positive impact on tax compliance in Indonesia. It is possible to explain how independent variables influence taxpayer compliance. This research is essential to encourage taxpayers to comply with their obligations by using a behavioral approach and current tax policies, which will increase economic prosperity in Indonesia.
Early grammatical development in Cypriot Greek
Authors: Taxitari Loukia
Published: February 2022

The current study investigates the grammatical development of toddlers acquiring Cypriot Greek as their first language. The MacArthur-Bates Communicative Development Inventory (CDI) was used to collect data from parents of children between 18 and 30 months of age. This is the first large-scale study presenting information on the grammatical development of children in Cyprus, as well as comparisons between grammatical development and other aspects of language development, such as lexical development. The data included information on several grammatical features, such as the formation of plural in nouns, or person in verbs, as well as children's utterance length (MLU3-w) as a measure of morphosyntactic abilities. The analysis showed a significant increase with age in children's grammatical complexity (the number of grammatical features produced by children), length of utterance as well as children's lexicons, with an overall advantage of girls over boys. Additionally, the different grammatical features were shown to develop at different times and pace, with an interesting increase at the end of the second and the beginning of the third year. Overall grammatical development is shown to be ‘piecemeal’, supporting usage-based accounts of morphological development.
Multilingual university students’ perceived English proficiency, intelligibility and participation
Authors: Blake Helen L. , Verdon Sarah , McLeod Sharynne
Published: February 2022

This paper reports on 137 multilingual students enrolled at 14 English-speaking Australian universities who completed a 27-item online survey investigating the relationship between perceived English proficiency, intelligibility, and their academic, social and vocational participation. Open-ended responses described strategies used to enhance spoken English. Participants came from 44 countries and spoke 49 home languages. Self-ratings of English communication skills were significantly affected by age, English experience, number of languages spoken and home language. Participants reported spoken English proficiency impacted participation; however, results highlighted lack of awareness of intelligibility as an essential component of spoken language proficiency. Although environmental factors (e.g. more time using English in conversations) were associated with higher self-ratings of proficiency, participants preferred using individual strategies (e.g. listening/repeating) to support English intelligibility rather than social interactions with native speakers. The results demonstrate the importance of conversation practice in language learning to increase proficiency and confidence, as well as participation.
First person singular subject pronoun expression in Equatoguinean Spanish
Authors: Padilla Lillie
Published: February 2022

The present study examines the linguistic and social factors that affect first person singular subject pronoun expression (SPE) in Equatoguinean Spanish. It also questions whether first person singular SPE in Equatoguinean Spanish supports or contradicts the tenets of the interface hypothesis. The data were analysed with the mixed effect software Rbrul. It consisted of transcriptions of audio recordings of 30 Equatoguinean participants in Malabo. The overt pronoun rate found in these data is 25.1%. The linguistic factors that also influence first person singular SPE are ambiguity, verb class and reference, whereas the social factors are education and speaker. Due to the low ranking of reference, the prediction of the interface hypothesis is supported in this study.
Being in bilingual speech
Authors: Balam Osmer , Couto María del Carmen Parafita , Amanda Chen Mia
Published: February 2022

In the present study, we investigated estar constructions in the Spanish/English code-switching variety of northern Belize, which is well known for its prolific use of hacer bilingual compound verbs in code-switched speech. To this end, we extracted and analysed 364 unilingual Spanish and 158 bilingual estar constructions from naturalistic speech in order (i) to examine the occurrence of estar with predicative adjectives, present participles, and past participles in both unilingual and code-switched discourse; and (ii) to determine how type of bilingualism (emergent versus dynamic) and frequency of use of hacer bilingual compound verbs, influence the naturalistic production of estar constructions. Results revealed that the production of estar with English predicative adjectives and English past participles was favoured in bilingual discourse. Importantly, the use of ‘estar + English past participle’ constructions was favoured by dynamic bilinguals who more frequently employed hacer ‘do’ bilingual compound verbs. Our findings highlight the important role that bilingual competence plays in the naturalistic production of congruent structures in code-switched speech.
Teacher expectations of multilingual students’ achievement
Authors: De Backer Fauve , Vantieghem Wendelien , Van Gorp Koen , Slembrouck Stef , Van Avermaet Piet
Published: February 2022

Assessment is a powerful tool for both teachers and students to get more insight into students’ competences. However, multilingual learners may be underperforming on tests because linguistic barriers hinder them in demonstrating their content knowledge. In this study, we investigate whether multilingual assessment holds the potential to adjust erroneous teacher expectations of multilingual students. We discuss a randomised experiment in which 1,154 students in 5th grade (age 9 to 12) were randomly assigned to one of four test conditions: (1) a bilingual test, (2) a bilingual test with additional read-aloud accommodation in both the language of schooling and home language, (3) read-aloud accommodation in the language of schooling and (4) a control condition without accommodations. Flemish teachers were asked how well they expected their students to perform on a science test. By using chi-square tests, we examine the accuracy of teacher expectations and investigate whether this differs according to students’ linguistic backgrounds and test accommodations. The results suggest that when multilingual students use read-aloud accommodations in their L1, they more often tend to do better than expected by their teachers. Implications for testing culture, test accommodations and teacher expectations are discussed.
Examining validity issues in classifying and exiting English learners through dynamic views of language proficiency
Authors: Turkan Sultan
Published: February 2022

With the growing English learner population, this study identifies issues of fairness around cut score setting practices that impact English learner (EL) classifications and reclassifications in the US context. High-stakes decisions regarding the education of ELs have relied mostly on English language proficiency (ELP) assessments and the ELP-related classifications. The ELP-related classifications are central to ELs’ life cycles in US schooling. These classifications impact decisions as to whom to designate as EL, whom to administer content assessments to, and who benefits from instructional support programmes. This study examines the practices in the US pre-and post- ‘Every Child Succeeds Act’ (ESSA) of 2015 and takes a dynamic multilingualism perspective to discuss what validity evidence is missing in the current classification practices and what could be done to better align the classification practices with the dynamic languaging practices of multilingual learners.
Language assessment frameworks as language policy
Authors: Van Viegen Saskia , Jang Eunice Eunhee
Published: February 2022

Reviewing the development and implementation of the Steps to English Proficiency (STEP) language proficiency assessment framework in Ontario, Canada, this article calls attention to how language proficiency is operationalised in English language proficiency (ELP) standards in ways that may institutionalise hierarchies among home, school and community language practices. Use of these standards for classroom-based language assessment requires teachers to play a defining role, to observe, interpret and make judgements about students’ bi/multilingual language practice. However, STEP was developed and validated based on teacher perceptions of students’ language use, revealing the monolingual ideologies at work in Ontario education. The study concludes by discussing opportunities for teachers to identify, observe and document students’ multilingual practice through teacher-inquiry to align curriculum and assessment policy and practice with the sociolinguistic reality of Ontario’s multilingual classrooms and communities.
Perspectives on the multilingual turn in assessment
Authors: Fox Janna
Published: February 2022

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Perjanjian Iklan di Radio Suara Akbar Surabaya menurut Hukum Islam dan Hukum Positif
Authors: Ikbar Alifia Nisa
Published: February 2022

The data of this research were collected using observation, interview, and literature study techniques. Then analyzed with descriptive techniques in describing the problem of advertising agreements at Radio Suara Akbar Surabaya. After the data obtained were then analyzed using the Islamic Law and Positive Law. The results of this study concluded that the advertising agreement on SAS FM radio Surabaya with the advertiser, namely the Al Falah Social Fund Foundation (YDSF) had no procedural problems, but in practice there was a default by SAS FM radio with the broadcaster's negligence in managing the time. So that, the advertisement cannot be played as agreed, namely at the exact time of the SAS FM radio signal, in addition to an erratic power outage, and an unexpected time transmitter malfunction. The advertising agreement in this case, according to Islamic law, there are conditions that are not fulfilled, so that it is detrimental to the YDSF advertiser whose advertisement is not shown at the right time signal. According to positive law, it also causes losses to the party carrying out the advertisement. So that, the advertiser can claim compensation for both broadcast time and costs. In this case, the aggrieved party is the client by not showing the advertisement as agreed, then SAS FM is required to change the broadcast time outside the existing agreement.
Field monitoring of vertical stress distribution in GRS-IBS with full-height rigid facings
Authors: Zhang J. , Guo W. , Ji M. , Zhao J. , Xu C. , Zheng Y.
Published: February 2022

This paper presents a case study of the first geosynthetic reinforced soil-integrated bridge system (GRS-IBS) with full-height rigid facings in China. Open graded gravel and biaxial geogrid were used for the GRS-IBS. Steel frames and three-dimensional (3D) vegetation nets were used as temporary facing support during construction of the GRS abutments. Full-height rigid facings were cast in place on strip foundations. Field monitoring results of vertical stress distribution for different construction stages and loading conditions are presented and discussed. For both bridge dead load and truck loads, measured incremental vertical stresses under the beam seat increase significantly with increasing elevation, especially for higher applied vertical stress. The calculated incremental vertical soil stresses using the Boussinesq solution are in reasonable agreement with the measured values, while the 2 : 1 stress distribution method overestimates the incremental stresses in the lower section of the abutment. The transferred vertical stresses from bridge load application for the GRS abutment with full-height rigid facing are larger than those for the GRS abutment with modular block facing near the top of the abutment, but are smaller near the bottom.
Budgeting practices of Korean tourist hotels: Comparison of upscale hotels and budget/mid-priced hotels
Authors:   The Tourism Sciences Society Of Korea, Akmaljon Nurulloevich Sohibov , Oh Heung-Chul
Published: February 2022

This study explores Korean tourist hotel budgeting practices and compares budgeting practices of two hotel categories: upscale hotels and budget & mid-priced hotels. Its justification is the lack of research on the related topic. To achieve the purpose of this study, a questionnaire consisting of questions related to budget planning, execution, and control stages was sent to 183 Korean tourist hotels, 78 of which (36 upscale and 42 budget & mid-priced hotels) participated in this survey. To analyze survey responses, frequency analysis, descriptive statistics, and t-tests were employed to determine the similarities and differences in the budgeting practices between the two hotel categories. The results indicated that the budgeting practices of these hotel categories were significantly different from each other. The main differences between the two hotel categories were identified in the practices of budget manual existence, budget period, long-term budget existence and its period, budget execution stage, and budget variation analysis frequency and its examiners.
Evidenzbasierte Arbeitsepidemiologie – warum und wie?
Authors:   Bundesanstalt für Arbeitsschutz und Arbeitsmedizin (BAuA), Berlin, Hegewald Janice , Wegewitz Uta ,   Bundesanstalt für Arbeitsschutz und Arbeitsmedizin (BAuA), Berlin
Published: February 2022

Die evidenzbasierte Medizin ist der Goldstandard für die Bewertung und Beurteilung wissenschaftlicher Erkenntnisse im Gesundheitswesen. Auch in der Arbeitsepidemiologie und -medizin werden evidenzbasierte Methoden eingesetzt, um zum Beispiel eine Grundlage für Empfehlungen, Berufskrankheiten oder für die Ableitung von Grenzwerten zu schaffen. Etablierte Forschungsinstrumente für systematische Reviews müssen jedoch häufig für die Anwendung auf Beobachtungsstudien angepasst werden. Dieser Text gibt eine kurze Einführung, wie eine systematische Übersichtsarbeit durchgeführt wird, was bei der Durchführung von systematischen Übersichten zu arbeitsmedizinischen Themen zu beachten ist und wie systematische Übersichtsarbeiten kritisch zu lesen sind.
Primärforschung in der Arbeitsepidemiologie
Authors:   Lehrstuhl für Arbeitswissenschaft, Bergische Universität Wuppertal, du Prel Jean-Baptist , Schröder Chloé Charlotte ,   Lehrstuhl für Arbeitswissenschaft, Bergische Universität Wuppertal
Published: February 2022

Arbeitsepidemiologische Studien ermöglichen realitätsnahe Untersuchungen gesundheitlicher Risiken durch arbeitsbezogene Expositionen. Ihnen kommt somit ein hoher Stellenwert bei der Festlegung gesundheitsbasierter Grenzwerte zu. Im Zuge des Belastungsstrukturwandels gewinnt arbeitsepidemiologische Forschung durch die Möglichkeit der Abschätzung von Risiken durch nicht-stoffgebundene Arbeitsbelastungen an Bedeutung. Der Beitrag gibt einen Überblick zur arbeitsepidemiologischen Primärforschung.
Заработная плата преподавателей российских вузов и эффективный контракт
Authors: Рудаков Виктор
Published: February 2022

В информационном бюллетене оцениваются динамика, структура и дифференциация заработной платы преподавателей российских вузов по типам вузов, федеральным округам, должностям, статусу занятости, возрастным группам и ряду других параметров. В обзоре также рассматриваются составляющие стимулирующего контракта, распространенность различных видов надбавок, удовлетворенность системой стимулирующих выплат и бюджет времени преподавателей.
Yüksek basınçlı döküm yöntemi ile üretilen Mg-4Sb-2Al alaşımına Ce (Seryum) ilavesinin etkisinin incelenmesi
Authors: KUMRUOĞLU Levent Cenk , İNCE Kübra
Published: February 2022

Bu çalışmada Mg-4Sb-2Al alaşımına, ağırlıkça % 0,5, 1, 2 oranlarında Ce (seryum) elementi ilavesinin etkisi incelenmiştir. Döküm prosesi olarak yüksek basınçlı kokil kalıba döküm yöntemi kullanılmıştır. Üretilmesi planlanan ürünler direk olarak çekme ve darbe numunesi şeklinde üretilmiştir ve çekme numuneleri yarı endüstriyel pilot ölçekli numuneleri temsil etmektedir. Üretilen numunelerin mekanik özelliklerini tespit etmek için çekme deneyleri, sertlik deneyleri, metalurjik ilişkiyi tespit etmek için ise metalografik inceleme, SEM ve XRD incelemeleri yapılmıştır. İlave edilen Ce oranına bağlı olarak mekanik özellikler artmıştır. Bu sonuçlara göre Mg3Sb2, Mg12Ce, CeSb ve Mg fazlarının varlığı tespit edilmiştir. İlave edilen Ce oranının artmasına bağlı olarak yeni bir faz olan CeSb fazının şiddeti artmıştır. CeSb ve Mg3Sb3 intermetalik fazlarının tane sınırlarında biriktiği anlaşılmıştır. Tane sınırlarında çubuğumsu bir şekilde birikim gösteren bu yapılar, dislokasyon hareketini engellemek ve ince taneli bir yapı oluşturmak sureti ile çekme mukavemetini ve sertlik değerlerini artırmıştır. Çekme mukavemeti değerleri %0,5 Ce, %1 Ce, %2 Ce ilave edilen alaşımlar için sırası ile 145-148 MPa, 164-168 MPa, 163-167 MPa aralığında, uzama yüzdeleri ise sırası ile %12, %13 ve %16 olarak tespit edilmiştir. Ce ilavesi ile sertlik değeri 48 BHN’den 54 BHNe’ye artmıştır.
GLİAL TÜMÖR TEDAVİSİNDE TAMAMLAYICI HEDEF TEDAVİ: PROSTAT SPESİFİK MEMBRAN ANTİJEN (PSMA)
Authors: OĞUZOĞLU Ali Serdar , ŞENOL Nilgün , YASAN Hasan , YÜCEER Ramazan Oğuz , GAZELOĞLU Cengiz , ÇİRİŞ İbrahim Metin
Published: February 2022

Amaç

Gliomalar farklı dereceleri ile en sık karşılaşılan primer

beyin tümörleridir. Özellikle yüksek dereceli olanlarda

tümör anjiogenezi hem ana komponenetlerden biri,

hem de prognoz açısından değerli bir belirleyicidir.

Bu çalışmada, farklı hedef tedavileri belirleyebilmek

için immunohistokimyasal metod ile glial tümörlerde

prostat spesifik membran antijeni (PSMA) salınımını

değerlendirmeyi amaçladık.

Gereç ve Yöntem

Derece II (n=22), Derece III (n=19) ve Derece IV

(n=52) glial tümörlü 93 hastadan alınan örneklerde

PSMA antikorları immunohistokimyasal metod ile incelendi.

Tümör dokusundaki PSMA boyanma yoğunluğu

ve tümör epitelleri incelendi. Tümör epitelinde

tümör ve tümör-dışı dokuda PSMA salınımına göre

vasküler salınım ve yoğunluk skoru analiz edildi.

Bulgular

Yüksek dereceli gliomalarda, vasküler PSMA boyanma

yüzdesi ve vasküler yoğunluk skoru düşük derecelilere

göre anlamlı olarak daha yüksek (p
El lideratge del professorat en el procés d’ensenyament i aprenentatge
Authors: Sánchez-González Jessica
Published: February 2022

Aquest estudi pretén identificar quin estil d’ensenyament, un de més autoritari o un de més adaptatiu, s’ajusta més a la demanda d’un model educatiu competencial. Encara més, busca comprovar si tots els centres educatius de Catalunya s’han adaptat al nou model de currículum per competències, i conèixer quina és la predisposició docent davant aquest canvi, comparant-la amb la percepció de l’alumnat. En la recollida d’informació i posterior anàlisi de dades s’han utilitzat tant mètodes quantitatius com qualitatius. D’una banda, s’ha passat un qüestionari a tots els centres educatius de Catalunya, per mitjà del qual s’ha obtingut una mostra de 676 docents de diferents especialitats i etapes educatives, així com de centres de diverses titularitats. D’altra banda, s’ha passat un altre qüestionari al col·lectiu d’estudiants, a una mostra de 251 participants. Alhora, s’ha entrevistat Ignasi Duch Gavaldà, coordinador de Serveis Educatius i Formació Permanent al Departament d’Educació. Els resultats de l’estudi assenyalen que no hi ha un model establert de com és el treball per competències i que el lideratge educatiu no es pot entendre des de l’exclusivitat, sinó que cal adaptar-lo al context i a les necessitats educatives del grup o centre.
Efecte de l’ús de la plataforma Google Classroom en el rendiment acadèmic en l'assignatura de Geografia i Història de 3r d'ESO
Authors: Guillén Villar Abraham
Published: February 2022

En aquesta recerca quantitativa s’ha estudiat si l’aplicació Google Classroom pot ajudar els alumnes a assolir una millora significativa en el rendiment acadèmic. Hi han participat 44 alumnes de 3r d’ESO de l’Institut Ramon Barbat de Vila-seca, dividits en dos grups. Un grup feia servir aquest recurs, mentre que l’altre actuava com a grup control. Tots dos grups van fer dos exàmens iguals; un abans d’iniciar les sessions didàctiques (pretest) i l’altre un cop finalitzades les sis sessions (posttest). La unitat didàctica aplicada va ser la mateixa per als dos grups, així com la quantitat de sessions. Les activitats foren les mateixes, amb algunes variacions en l’aplicació degut a la naturalesa del recurs en estudi. Per determinar si hi ha diferències significatives en el resultat final (posttest) s’ha utilitzat el test estadístic ANCOVA, emprant el resultat del pretest com a covariable. No s’han detectat diferències significatives entre els dos grups amb relació al posttest, fet que indica que el recurs Google Classroom no ha aportat cap millora significativa en l’aprenentatge. En canvi, sí que s’han vist diferències significatives entre els dos grups amb relació als coneixements previs, després d’analitzar-ho amb un test ANOVA multifactorial. També s’ha observat que tots dos grups han millorat els coneixements significativament després de fer la unitat didàctica. Per comparar les qualificacions del pretest i del posttest en cada grup s’ha fet servir un test t-Student de dades aparellades.
ANALISIS STRATEGI PENGEMBANGAN BISNIS PADA SOERABI PA’IS BANDUNG
Authors: Haris Wulandari Dini , Priatini Woro , Ryana Herry
Published: February 2022

Soerabi Pa’is is one of a surabi shop in Bandung city that has been established since August 18th, 2006. Soerabi Pa’is experiences reduction of selling volume so that makes the importance of strategic formulation at Soerabi Pa’is. The purpose of this research are: (1) to know the factors of internal stategic such as strength and weakness that owned by Soerabi Pa’is, (2) to know the factors external strategic such as opportunity and threat for Soerabi Pa’is, (3) to know the alternative of bussiness development strategic that can be applied based on analysis SWOT result, and (4) to know the order of strategic alternative priority that can be applied at Soerabi Pa’is. The analysis result shows, there are seven alternative strategics that can be applied by Soerabi Pa’is, with expanding market share as the main strategic with the highest score 7,44.ABSTRAKSoerabi Pa’is adalah salah satu kedai surabi di kota Bandung yang telah berdiri sejak tanggal 18 Agustus 2006. Soerabi Pa’is mengalami penurunan volume penjualan, hal tersebut membuat pentingnya perumusan strategi yang tepat pada Soerabi Pa’is. Tujuan dilakukannya penelitian ini adalah: (1) mengetahui faktor-faktor strategis internal yang merupakan kekuatan dan kelemahan yang dimiliki Soerabi Pa’is, (2) mengetahui faktor-faktor strategis eksternal yang merupakan peluang dan ancaman bagi Soerabi Pa’is, (3) mengetahui alternatif strategi pengembangan bisnis yang dapat diterapkan Soerabi Pa’is berdasarkan hasil analisis SWOT, dan (4) mengetahui urutan prioritas alternatif strategi yang dapat diterapkan Soerabi Pa’is. Hasil analisis menunjukkan terdapat tujuh alternatif strategi yang dapat diterapkan Soerabi Pa’is dengan strategi utama yaitu memperluas pangsa pasar dengan skor tertinggi 7,44.
Menaklukan Dunia Kerja melalui Pendidikan Profesi Guru Bahasa Inggris
Authors: Lestari Fegy , Mukhidin M.
Published: February 2022

Tuntutan dunia kerja yang semakin membuat msyarakat memutar otak, agar dapat mewujudkan mimpinya. Perkembangan globalisasi yang menghadirkan Masyarakat Ekonomi Asean (MEA) ditengah-tengah masyarakat yang menyebabkan persaingan bebas disegala sektor dan tidak luput di sektor pendidikan. Indonesia merupakan negara ASEAN, yang berarti harus mempersiapkan masyarakat dengan kemampuan dan keterampilan dalam bersaing di dunia kerja. Selain itu, juga harus mempersiapkan pendidik (guru) lokal memiliki profesionalisme yang tinggi yang dapat bersaing dengan tenaga asing. Salah satu upaya pemerintah adalah menciptakan program pendidikan profesi guru (PPG) di sektor pendidikan. Memiliki guru yang berkualitas adalah harapan setiap masyarakat agar dapat menciptakan lulusan-lulusan yang berkualitas yang mampu bersaing baik secara nasional maupun internasional. Salah satu PPG yang dapat menjembatani dengan dunia internasional adalah PPG bahasa Inggris, dimana lulusan-lulusan yangberkualitas dapat mengaplikasikan kemampuan berbahasa Inggris dapat lahir dari seorang guru yang memiliki kompetensi berbahasa Inggris dengan baik dan benar.Kata Kunci: Tuntutan dunia kerja; MEA; PPG; Guru dan Lulusan yang berkualitas AbstractThe demands of the world of work are increasingly making people rack their brains, in order to realize their dreams. The development of globalization that presents the Asean Economic Community (MEA) in the midst of society that causes free competition in all sectors and does not escape the education sector. Indonesia is an ASEAN country, which means it must prepare people with the ability and skills to compete in the world of work. In addition, it must also prepare local educators (teachers) to have high professionalism who can compete with foreign workers. One of the government's efforts is to create a teacher professional education (PPG) program in the education sector. Having quality teachers is the hope of every society in order to create quality graduates who are able to compete both nationally and internationally. One of the PPGs that can bridge the international community is the English PPG, where quality graduates who can apply English language skills can be born from a teacher who has good and correct English competence.
Evaluasi Implementasi KTSP pada Aspek Kompetensi Pengelolaan Pembelajaran di SMK
Authors: Untung Sunarto Halim
Published: February 2022

Kurikulum senantiasa direvisi untuk mewujudkan kurikulum yang sesuai dengan tuntutan dan kebutuhan masyarakat, guna mengantisipasi perkembangan jaman, serta memberikan guideline atau acuan bagi penyelenggaraan pembelajaran di satuan pendidikan. Kurikulum Tingkat Satuan Pendidikan (KTSP) dikembangkan sesuai dengan satuan pendidikan, potensi daerah/karakteristik daerah, sosial budaya masyarakat setempat, dan peserta didik. KTSP akan membuat guru semakin kreatif, karena mereka dituntut harus merencanakan sendiri materi pelajarannya untuk mencapai kompetensi yang telah ditetapkan. Pada pelaksanaannya masih timbul hambatan pelaksanaan KTSP di sekolah pada unsur guru. Implementasi KTSP masih diwarnai minimnya sosialisasi dan persiapan guru. Timbul pertanyaan bagaimana mungkin KTSP berhasil diterapkan di sekolah jika para guru masih belum memahami konsep, substansi, dan mekanisme pelaksanaan KTSP. Jika masalah ini dibiarkan maka akan sia-sia apa yang telah dilakukan oleh pemerintah dan penentu kebijakan pendidikan, sehingga dalam konteks ini perlu dipahami bahwa pentingnya sebuah kesiapan yang harus dimiliki guru. Permasalahan di atas, diteliti melalui evaluasi implementasi KTSP pada aspek Kompetensi pengelolaan pembelajaran menggunakan model perbandingan antara standar evaluasi dengan hasil observasi (standard vs observ). Subjek penelitian adalah guru Mata Diklat Teknik Gambar Mesin di SMKN 2 Bandung. Instrument penelitian berupa: observasi, wawancara dan studi dokumentasi yang perangkatnya di jadment oleh ahlinya. Hasil penelitian menunjukkan bahwa Rencana pelaksanaan pembelajaran (RPP) yang dibuat kelompok guru dibandingkan dengan rambu-rambu petunjuk penyusunan RPP yang terdapat pada dokumen KTSP, diperoleh ketercapaian 33% dibandigkan standar aspek perencanaan pembelajaran menurut KTSP di SMK. Pelaksanaan pembelajaran diperoleh ketercapaian 52,371%. Sedangkan  Pengelolaan pembelajaran secara utuh diperoleh ketercapaian 60,17.5%.
One-Dimensional Model of Heat and Mass Transfer in Closed-Type Cryogenic Gasifiers
Authors:   Military Scientific Educational Center of Military-Air Forces «N. E. Zhukovsky and Ju. A. Gagarin Military-Air Academy», Borodkin Stanislav V. , Bataronov Igor L. ,   Voronezh State Technical University, Ivanov Alexey V. ,   Military Scientific Educational Center of Military-Air Forces «N. E. Zhukovsky and Ju. A. Gagarin Military-Air Academy», Ryazhskikh Victor I. ,   Voronezh State Technical University
Published: February 2022

A one-dimensional energy transfer equation is formulated in terms of the average mass temperature of a supercritical fluid (SCF), determined by the average mass enthalpy of the flow. The kinetic equation for the heat flow of heat exchange between the SCF and the coolant is used in the form of the Newton-Richman law in the flows of liquid media and thermal resistances for a multilayer heat exchanger tube, taking into account the possibility of icing of the tube from the coolant side. The thickness of the icing layer is found in a self-consistent way when solving the model equations, similar to the Stefan problem. For the proposed model, the thermophysical conditions of heat exchange in the SCF and the coolant are analyzed and the criteria equations for calculating the heat transfer coefficients in the coolant and the environment are selected. The model was tested in various heat exchange schemes
Research of Influence of Substitution of Renewable Energy Sources as a Part of the Scheme of Supply of Own Needs of Small and Micro-HPPS
Authors:   Sayano-Shushensky Branch of Siberian Federal University, Achitaev Andrei A. , Zhidkov Aleksey A. ,   Novosibirsk State Technical University, Naumkin Nikolay S. ,   Sayano-Shushensky Branch of Siberian Federal University
Published: February 2022

One of the directions of modern development of renewable energy technologies in Russia is associated with the expansion of their application as part of the own needs of power plants. This article examines the study of the connection of renewable energy sources (RES) as part of the own needs of micro--hydroelectric power plants. The analysis of possibility of power supply of own needs of micro-HPP by wind power installation with use of the frequency Converter for the purposes of regulation of tension of own needs of station was carried out. The first part of the article is devoted to the analysis of publications on the current problem of the use of small and micro--hydroelectric power plants, as well as the description of the purpose and objectives of the study. The second section of the article presents mathematical models describing the connection of the wind turbine with a frequency Converter to work together with consumers of the station's own needs, for which the function of voltage regulation in the network is supposed to be performed. The law was formulated and an algorithm was constructed for the operation of the wind turbine with a load as part of the station's own needs. Note that this algorithm assumes continuous operation of the wind turbine without switching it according to the scheme of automatic reserve input, which leads to an increase in the installed capacity utilization factor. In the third part of the article the oscillograms of transient processes in the mode with and without wind turbines are considered. The short-circuit mode on the load and the influence of the wind turbine on the value of the recharge current are also considered. And in conclusion, the main conclusions on this work are formulated
Optimization of the Cascade Code Parameters by the Criterion of the Boundary Value of the Interference Band and the Selection of the Decoding Algorithm
Authors:   Military Academy named after Marshal of the Soviet Union Georgiy Zhukov, Zhironkin Sergey B.
Published: February 2022

A coherent data transmission channel with pseudo-random tuning of the operating frequency (FH) is considered, a concatenated code based on an ensemble of orthogonal signals and a Reed-Solomon code, with various reception-decoding algorithms under conditions of simultaneous action on the channel of two interference – a barrage and a FH concentrated in a part of the band. The estimates of the boundary value of the part of the FH band covered by the interference, the characteristics of the optimal concatenated code, are obtained, and also the receive-decoding algorithm is selected, in which the boundary value of the part of the band covered by the interference takes the maximum value in a given interference environment
Investigation of the Directional Characteristics of the Antenna of the Satellite Earth Station Using the Spiral Scanning Method
Authors:   Siberian Federal University, Gladyshev Andrey B.
Published: February 2022

Results of earth station antenna experimental studies of satellite communication were shown. This antenna looks like two-mirror construction designed by Cassegrain circuit with parabolic reflector, which diameter is 1.2 m. This results made with help of spherical scanner by spiral scanning method. Antenna directional patterns were constructed. Deviation reasons of the measured directional characteristics from the calculated ones were analyzed