bluuebunny/crossref_metadata_2025 huggingface dataset:
A study on normal reference values of echocardiographic chamber dimensions in new born infants from eastern India- a pilot study
Authors: Halder Swapan , Roy Samir , Mukherjee Anindya , Khanra Dibbendhu , Saha Soumyajit , Mandal Manoranjan
Published: May 2021

Introduction: Echocardiography has been an integral part of neonatal
care since the 1990s and application of this technology is increasing
ever since. It is already known that differences in weight, age and race
significantly affect the normal heart dimensions. Therefore,
establishing the normative values for cardiac dimensions among Indian
healthy newborn infants is of paramount importance. In this study we
report the normal reference values of echocardiographic chamber
dimensions of newborn infants from eastern India. Methods: 100 healthy
newborn infants were included in this cross-sectional, observational,
single hospital-based pilot study. A single experienced cardiologist
performed the trans-thoracic echocardiographic studies on the subjects
in supine position in their respective bassinets. No sedation was used.
The parameters were distributed according to body weight and in
percentiles. Results: Subjects were categorized according to their body
weight into three groups: 2-2.4 kg, 2.5-2.9 kg and 3-3.5 kg. Each group
comprises of 7, 50 and 43 newborns respectively. Left ventricular
end-diastolic dimension and left ventricular end-systolic dimension
showed incremental trends across body weight. Conclusion: This study
shows the difference of cardiac dimensions in Indian newborn infants
from western data. This is the first study presenting the normative
reference ranges and percentiles of echocardiographic parameters in
Indian newborn infants which needs confirmation with larger multicenter
studies.
Short rotation willow on the prairie potholes’ degraded marginal riparian lands: a potential land-use practice to manage soil salinity
Authors: Shahariar Shayeb , Soolanayakanahally Raju , Bedard-Haughn Angela
Published: May 2021

Land-use practice shift in the wetland riparian zone can influence
groundwater table (GWT) fluctuations and salts dynamics, potentially
leading to soil salinization. The risk of soil salinization linked with
high water tables could better manage using high growing capacity and
deep-rooted phreatophytic vegetation via ‘biodrainage’ approach. We
evaluated the impacts of short rotation willow (SRW) plantation on soil
and groundwater salinity linked to shallow GWT fluctuations and compared
with adjacent annual crop (AC) and pasture (PA) in a field experiment.
Groundwater salinity (ECgw) along with depth to GWT and soil salinity
(ECsoil at 0-60 cm depth) were measured along transects within each
land-use practice in two prairie pothole region (PPR) wetland sites (A
and B). The variations in ECgw were significant (p < 0.05)
across land-uses; however, inconsistent between sites. The positive
correlation with ECgw, ECsoil, and total dissolved salts (TDS) indicated
higher salinity and salt accumulation with increased depth to GWT in
both sites. The ECsoil varied significantly (p < 0.05) among
land-use practices; however, no consistent land-use patterns were
observed between sites. Throughout the experimentation, site B
consistently exhibited higher ECsoil (two-fold) than site A. Decreasing
inclinations were observed in ECsoil with increasing SRW biomass at both
depths (i.e., 0-30 and 30-60 cm) and vice versa. This study refines our
knowledge of SRW linked potential hydrological alteration and its
implication on salinity, which provides critical context for degraded
marginal riparian wetland soil management in the PPR.
Impact of sustainable land-use management practices on soil carbon sequestration and soil quality in the west coast of India
Authors: Venkatesh Paramesh , SINGH SURENDRA , Mohekar Deepak , Arunachalam Vadivel , Misra Shiva , Jat S , Nath Arun , Kumar Nirmal , Mahajan Gopal , Bhagat Tejasvi
Published: May 2021

The evaluation of sustainable land management practices is imperative
under particular soil type, climate, and cropping sequence following
area-specific best management practices. The alternative land-use system
(ALUS-natural forest, pasture, cashew, areca nut, coconut) on hills and
agricultural land-use system (AGLUS-rice-rice, rice-pulse) in the
coastal plains of west coast India was evaluated in this study. The
present study assessed the impact of sustainable land-use management
practices on different fractions of SOC and soil quality under ALUS and
AGLUS. The total SOC stocks under different land-use systems varied from
14.4 Mg ha−1 in rice–rice rotations to 133.7 Mg ha−1 in cashew and more
than 75% of total SOC stock were found as a passive carbon pool. The
higher lability index, available nutrients, and biochemical properties
were found in ALUS. This variation in the levels of SOC and soil quality
was due to land use and management practices. The results indicated land
use with areca nut (0.8) on the hills and rice–pulses (0.25) rotations
on the coast had maintained soil quality of high order. On upscaling the
different land-use systems by growing cashew, areca nut, coconut,
pasture, and rice-pulses rotations, SOC stocks of Goa can increase from
6.33 Tg at present to 32 Tg. We recommend promoting sustainable
agriculture with ALUS on the hills and with AGLUS on the coastal plains
of Goa for enhancing SOC sequestration and improving soil quality.
Rudimentary Physics with Python: An Application of Python Computer Algebra to Perform Calculus-based Kinematic Analysis
Authors: Ahmann Alexander
Published: May 2021

Python is “an interpreted high-level programming language for
general-purpose programming.” As part of its “general-purpose
programming ,” Python can be applied to solve scientific computing and
numeric problems. This paper, along with its accompanying presentation,
will discuss working out the displacement function from an arbitrary
non-constant acceleration function with a symbolic computing library for
Python known as SymPy.
Glomus tumor of small intestine: case report and review of literature
Authors: Tan Yan , Wang Xinyi , Yang Guifang , Liu Lan , Fang Jun , Chang Ying , Zhao Qiu , Zhang Yafei
Published: May 2021

Glomus tumors are exceedingly rare tumors arising from the normal glomus
body. Only a very few cases located in the small intestine were reported
to date. Here, we present a case of glomus tumor of the jejunum in a
30-year-old female patient, and discuss its clinical, imaging, and
pathologic features.
Pre-School Teachers’ Understanding about Children's Self-Directed Learning
Authors:   University of Latvia, Aboltina Liga
Published: May 2021

As society evolves, the need for a paradigm shift from teaching-centred to learning-centred education has become stronger. The learning processes focus on how children learn instead of how teachers teach, and it requires children to take responsibility for their own learning, thus promoting self-affirmation and self-directed learning. Implementation of a competency-based learning approach requires improving transversal skills, including self-directed learning. Unfortunately, preschool teachers lack a common understanding about children's self-directed learning. It is still a habit to set the goal of lessons to provide ready knowledge to lead and control the learning process. Observations in preschool classes show that teachers often do not have sufficient understanding on how to organize and process self-directed learning. In various studies self-directed learning is mainly based on the experience of schools and universities, associating preschools with school practice and researches. Schools and teachers are challenged to promote children’s self-directed learning. The aim of the paper is to identify the understanding of preschool teachers about self-directed learning in preschool and to find out the criteria for self-directed learning. Research methods used was content analysis of scientific literature and sources and survey of teachers. The research results indicate that preschool teachers relatively understand the essence of self-directed learning and determine the need for preschool teachers to promote children's self-directed learning in preschools.
Investigating the Neuroprotective Effect of Oral Omega-3 Fatty Acid Supplementation in Type 1 Diabetes (nPROOFS1): A Randomized Placebo-Controlled Trial
Authors: Britten-Jones Alexis Ceecee , Kamel Jordan T. , Roberts Leslie J. , Braat Sabine , Craig Jennifer P. , MacIsaac Richard J. , Downie Laura E.
Published: May 2021

This randomized, double-masked, placebo-controlled trial evaluated the effects of oral omega-3 (n-3) fatty acid supplementation on peripheral nerves in type 1 diabetes. Participants with type 1 diabetes were assigned (1:1) to n-3 (1,800 mg/day fish oil) or placebo (600 mg/day olive oil) supplements for 180 days. The primary outcome was change from baseline in central corneal nerve fiber length (CNFL) at day 180. Secondary outcomes included change in other corneal nerve parameters, corneal sensitivity, peripheral small and large nerve fiber function, and ocular surface measures. Efficacy was analyzed according to the intention-to-treat principle. Safety assessments included diabetic retinopathy grade and adverse events. Between July 2017 and September 2019, 43 participants received n-3 (n = 21) or placebo (n = 22) supplements. All participants, except for two assigned to placebo, completed the trial. At day 180, the estimated increase in CNFL in the n-3 group, compared with placebo, was 2.70 mm/mm2 (95% CI 1.64, 3.75). The Omega-3 Index increased relative to placebo (3.3% [95% CI 2.4, 4.2]). There were no differences in most small or large nerve fiber functional parameters. Adverse events were similar between groups. In conclusion, we found in this randomized controlled trial that long-chain n-3 supplements impart corneal neuroregenerative effects in type 1 diabetes, indicating a role in modulating peripheral nerve health.
High Burden of Subclinical and Cardiovascular Disease Risk in Adults With Metabolically Healthy Obesity: The Atherosclerosis Risk in Communities (ARIC) Study
Authors: Commodore-Mensah Yvonne , Lazo Mariana , Tang Olive , Echouffo-Tcheugui Justin B. , Ndumele Chiadi E. , Nambi Vijay , Wang Dan , Ballantyne Christie , Selvin Elizabeth
Published: May 2021

OBJECTIVE

It is controversial whether adults who are obese but “metabolically healthy” have cardiovascular disease (CVD) risk comparable with that of normal-weight adults. High-sensitivity cardiac troponin T (hs-cTnT), a biomarker of myocardial damage, is useful in characterizing subclinical CVD. We categorized obesity phenotypes and studied their associations with subclinical and clinical CVD and CVD subtypes, including heart failure (HF).

RESEARCH DESIGN AND METHODS

We conducted cross-sectional and prospective analyses of 9,477 adults in the Atherosclerosis Risk in Communities (ARIC) study. We used the Adult Treatment Panel III criteria and BMI to define obesity phenotypes as follows: metabolically healthy normal weight, metabolically healthy overweight, metabolically healthy obese, metabolically unhealthy normal weight, metabolically unhealthy overweight, and metabolically unhealthy obese.

RESULTS

At baseline (1990–1992), mean age was 56 years, 56% were female, 23% were Black, and 25% had detectable hs-cTnT (≥6 ng/L). Over a median of 17 years of follow-up, there were 2,603 clinical CVD events. Those with the metabolically healthy obese (hazard ratio [HR] 1.38, 95% CI 1.15–1.67), metabolically unhealthy normal weight (HR 1.51, 95% CI 1.30–1.76), metabolically unhealthy overweight (HR 1.60, 95% CI 1.41–1.82), and metabolically unhealthy obese (HR 2.14, 95% CI 1.88–2.44) phenotypes had higher CVD risks in comparison with metabolically healthy normal weight. Detectable hs-cTnT (≥6 ng/L) was associated with higher CVD risk, even among metabolically healthy normal-weight adults. Metabolically healthy obese adults had higher HF risk (HR 1.65, 95% CI 1.30–2.09) in comparison with metabolically healthy normal weight.

CONCLUSIONS

The metabolically healthy obese phenotype was associated with excess burden of clinical CVD, primarily driven by an excess risk of HF. hs-cTnT was useful in stratifying CVD risk across all obesity phenotypes, even among obese individuals who appear otherwise metabolically healthy.
Inverse Dynamics of Bipedal Gait: The Assumption of the Center of Pressure as an Instantaneous Center of Rotation
Authors: CELLEK Fatih , KALAYCIOĞLU Barış
Published: May 2021

In the study, an alternative 7-dof dynamical model that can be used in gait analysis of human, bipedal robots and exoskeleton systems is proposed. The dimensions and kinematic data of the model are specified on the basis of anthropometry and kinematic data of real human gait. The 7-link model consists of the trunk, two thighs, two shanks and two feet links. The movement is examined in the sagittal plane and during the single support phase (SSP). Unlike the rotation about a fixed point, it is assumed that the right foot rotates about the center of pressure (COP). The part between the COP and the tip of the toe is considered to be a passive limb which is horizontally on the ground. The effect of this part on dynamic analysis is neglected. The equations of motions are derived by applying Lagrange equations. Using the kinematic data obtained in clinical gait analysis (CGA) conducted by Winter [1], the net joint torques are calculated and then compared with CGA torque data. As a result of the comparisons, it is seen that the curves are overlapped significantly.
Process control of pulsed laser enhanced metal transfer behavior in CO2 gas shielded welding
Authors: Jia YaZhou , Chen Shujun , Xiao Jun , Huang Wenhao
Published: May 2021

Spot pressure, as an arc repelling force, hinders the metal transfer process and has a negative effect on welding process stability in CO2 gas shielded welding. In addition, the direction of the spot pressure changes uncontrollably with the deflection of the droplet. Therefore, it is particularly critical to provide an additional force to improve droplet transfer characteristics without disturbing the arc stability. To this end, a new approach of the pulsed laser enhanced metal transfer (PLE-MT) process in CO2 gas shielded welding was proposed to control metal transfer behavior. The results demonstrate that: different from the uncontrollable deflection of droplets caused by laser incident on the solid–liquid interface (S-L-I) of the droplet, the irradiation of solid-state welding wire (S-W) can fundamentally solve the droplet deflection problem. The cut droplet can enter into the molten pool smoothly along the axis, and the change of the incident height does not significantly change the droplet's detachment velocity. The droplet’s detachment time at three different laser incident heights (0.5, 1, and 1.5 mm) remained almost unchanged, all of which were about 6–8 ms. When the wire feeding speed is 4 m/min and the voltage is 25 V, after laser irradiation is added, the metal transfer frequency increases from 5 to 25 Hz. The droplet transfer mode changes from SC transfer to spray transfer, and it avoids the short-circuit spatter. However, the metal evaporation mass produced by laser heating liquid droplet or welding wires is about 3.5% of the droplet mass. Under the condition of direct current electrode negative (DCEN), although the melting efficiency of the wire can be effectively improved, the droplet will be repelled until the arc is extinguished, and the stability of the arc will also deteriorate due to the rise of the arc. The irradiation of the pulsed laser can impede the climb of the droplet (cut off the droplet when its size is small before the arc climbs up), promote metal transfer, and improve the stability of the welding process in DCEN. While expanding the process interval of CO2 welding, an efficient spatter-free, low-pollution metal transfer process was obtained under a relatively small current through the PLE-CO2 welding process.
Fronteiras Correspondidas: Moisés Bertoni e Suas Cartas
Authors: Portz Solange da Silva , Gregory Valdir
Published: May 2021

O presente trabalho constitui-se em uma pesquisa em torno de cartas remetidas e recebidas por Moisés Santiago Bertoni. Tem como objetivo lançar olhares sobre o mundo da fronteira trinacional Brasil, Paraguai e Argentina, final do século XIX e início do XX. Estes documentos apresentam acontecimentos e vivências ausentes em outras fontes de consulta. Bertoni, ao longo de sua vida, elaborou uma prática de produção sobre si, que englobou um diversificado conjunto de ações, desde as ligadas à escrita de si, até aquelas chamadas memórias de si. Essa “escrita de si” está sendo entendida dentro de um contexto de relações com seus próprios documentos, pois deixaram aparente o envolvimento que ele mantinha com os registros que produziu e arquivou para a construção de memórias que o colocam em uma posição de centralidade na fronteira. Foram os indícios contidos nas cartas que possibilitaram o relevante estudo não só sobre o personagem Bertoni, mas também sobre suas vivências e o rico legado produzido por ele e suas relações fronteiriças.
Pengembangan Media Pembelajaran Sains Berbasis Prezi untuk Siswa Sekolah Dasar pada Materi Penggolongan Hewan
Authors: Muharni Muharni , Alpusari Mahmud , Putra Zetra Hainul
Published: May 2021

This study aims to design and develop Prezi based learning media on animal classification topic. The method used is research and development based on ADDIE model, including analysis, design, develop, implementation, and evaluation. Data were collected through questionnaires. After analyzing curriculum and design Prezi based learning media on animal classification, the research continued into the developmental process. In this step, the media were validated by three experts, namely language, media, and content experts. The results showed Prezi based learning media on animal classification has high validation criteria to be used in learning science in elementary school. Then, Prezi based learning media was tested with 21 third grade students from a private school in Pekanbaru. The results shows that Prezi based learning media have effective in supporting students to learn animal classification, and the students were very motivating and enjoy learning. The implication of this study is that there is high potential for using Prezi based learning media in learning science. Keywords: animal classification, development research,  Prezi-based learning.ABSTRAKPenelitian ini bertujuan untuk merancang dan mengembangkan media pembelajaran berbasis Prezi pada topik klasifikasi hewan. Metode yang digunakan adalah penelitian dan pengembangan berdasarkan model ADDIE, meliputi analisis, perancangan, pengembangan, implementasi, dan evaluasi. Data dikumpulkan melalui kuesioner. Setelah menganalisis kurikulum dan merancang media pembelajaran berbasis Prezi pada klasifikasi hewan, penelitian dilanjutkan ke proses pengembangan. Pada tahap ini media divalidasi oleh tiga orang ahli yaitu ahli bahasa, ahli media, dan ahli isi. Hasil penelitian menunjukkan media pembelajaran berbasis Prezi klasifikasi hewan memiliki kriteria validasi tinggi untuk digunakan dalam pembelajaran IPA di sekolah dasar. Kemudian media pembelajaran berbasis Prezi diujicobakan kepada 21 siswa kelas III sekolah swasta di Pekanbaru. Hasil penelitian menunjukkan bahwa media pembelajaran berbasis Prezi efektif dalam mendukung siswa dalam belajar klasifikasi hewan, dan siswa sangat memotivasi serta menikmati pembelajaran. Implikasi dari penelitian ini adalah tingginya potensi penggunaan media pembelajaran berbasis Prezi dalam pembelajaran IPA.Kata kunci: penelitian pengembangan, pembelajaran berbasis Prezi.
Museumsbesuch zum Abschluss eines Ikonographieseminars. Didaktische Herausforderungen und Ziele
Authors: Fischer Stefan
Published: May 2021

This paper is based on a two-hour seminar on Ancient Near Eastern Iconography with a small group of students, conducted at the Institute for Old Testament Studies and Biblical Archaeology of the Faculty of Protestant Theology in Vienna. The students are familiar with Hebrew, History of Israel and Old Testament Exegesis contents, but have no special knowledge of Ancient Near Eastern Studies. The seminar is a methodological training insofar as it aims at acquiring the ability to read iconographic source material, i.e. to grasp it in its pictorial content and to classify it in terms of cultural history. Quality, material and style can only be criticized marginally. The museum visit should make it possible to apply the acquired skills to the object.
A Lei de Cotas e o acesso à Universidade Federal de Alfenas por estudantes pertencentes a grupos sub-representados
Authors: André Lopes Ronaldo , Gomes da Silva Guilherme Henrique , Batista Ferreira Eric
Published: May 2021

Este artigo apresenta resultados de uma pesquisa que buscou compreender o alcance da Lei de Cotas na Universidade Federal de Alfenas (Unifal-MG), com base na análise de dados de estudantes ingressantes em 2018. Esse alcance foi medido pela taxa de ocupação das vagas destinadas a estudantes público-alvo da Lei de Cotas e por simulações quanto a um possível cenário de como as vagas seriam ocupadas na ausência dessa ação afirmativa. Os resultados mostram que as vagas destinadas a estudantes público-alvo da Lei de Cotas não foram preenchidas em sua totalidade, apresentando menores taxas de ocupação nas categorias reservadas para aqueles egressos da rede pública de ensino autodeclarados pretos, pardos e indígenas. Ademais, as simulações realizadas evidenciam que, sem a Lei de Cotas, estes últimos teriam sido os estudantes menos incluídos nessa universidade em 2018, principalmente aqueles com renda per capita inferior a 1,5 salário mínimo. O estudo reforça a importância da manutenção da Lei de Cotas e aponta para a necessidade de que se desenvolvam ações institucionais para ampliar a abrangência do processo seletivo da instituição para um maior contingente de estudantes autodeclarados pretos, pardos e indígenas.
Aplicación de lixiviados de vermicompost y respuesta agronómica de dos variedades de pimiento
Authors: Alcivar-Llivicura Maria Fernanda , Vera-Rodríguez José Humberto , Arévalo Serrano Omar Juvenal , Arévalo S. Byron David , Pachar O Lorena Elizabeth , Castillo R Charly Bryan , Carlosama M Lisbeth Katherine , Arizabal C. Joan Andrés , Paltán M Noé David
Published: May 2021

El objetivo del presente trabajo fué evaluar el efecto de lixiviados de vermicompost a base de Residuos Vegetales y Gallinaza; Residuos Vegetales y Agroindustriales  y la combinación  de los dos lixiviados, en dosis de 60 y 90 l ha-1 sobre el desarrollo y producción del pimiento. El estudió se efectuó en variedades de pimiento  Marconi y Wonder, en total se establecieron siete tratamientos con tres repeticiones. La mejor respuesta en diámetro del fruto en ambas variedades evaluadas correspondió a los tratamientos de Lixiviado de Residuos Vegetales y Agroindustriales 90 l ha-1y Lixiviado Combinado 90 l ha-1 siendo superiores al control con valores de entre 52 y 15%. Por otro lado, la mayor longitud del fruto fue evidenciada en el tratamiento Lixiviado Combinado 90 l ha-1. En tanto que, la biomasa radicular incrementó en todos los tratamientos donde se aplicó el lixiviado. En la producción, definida por peso del fruto, los tratamientos sobresalientes fueron Lixiviado de Residuos Vegetales y Agroindustriales 90 l ha-1 y Lixiviado Combinado 90 l ha-1. De este modo, podemos concluir que el uso de lixiviados de vermicompost en dosis de 90 l ha-1 representa  una alternativa para potenciar el rendimiento del pimiento. En adición, la combinación de estos dos tipos de lixiviados ejerce un efecto sinérgico sobre la fisiología y producción de este vegetal.
A review of the New Guinea species of Chimarra Stephens (Trichoptera: Philopotamidae)
Authors: Cartwright David
Published: May 2021

Descriptions are provided for males of 58 philopotamid species in the Trichoptera (caddisfly) genus Chimarra Stephens. Among these are 49 new species from New Guinea (Papua New Guinea and the Indonesian province of Papua/ West Papua, including nearby islands): 41 new species from Papua New Guinea, seven from West Papua and one found in both (C. bifida sp. nov.). The new species are: Chimarra absida sp. nov., C. aliceae sp. nov., C. antap sp. nov., C. bicornis sp. nov., C. bicuspidus sp. nov., C. bifida sp. nov., C. bintang sp. nov., C. cavata sp. nov., C. clava sp. nov., C. cristata sp. nov., C. damma sp. nov., C. denticulata sp. nov., C. ediana sp. nov., C. erecta sp. nov., C. espelandae sp. nov., C. harpes sp. nov., C. huonana sp. nov., C. ismayi sp. nov., C. jari sp. nov., C. johansoni sp. nov., C. karamui sp. nov., C. kebarana sp. nov., C. kewabi sp. nov., C. kuka sp. nov., C. laensis sp. nov., C. lalokiana sp. nov., C. lindyae sp. nov., C. maai sp. nov., C. mendiana sp. nov., C. milneana sp. nov., C. missim sp. nov., C. morobensis sp. nov., C. newguineana sp. nov., C. olahi sp. nov., C. pertica sp. nov., C. pindua sp. nov., C. projectura sp. nov., C. sappela sp. nov., C. sepikana sp. nov., C. simbuensis sp. nov., C. stella sp. nov., C. supia sp. nov., C. toliana sp. nov., C. trigona sp. nov., C. ukarumpana sp. nov., C. unidentata sp. nov., C. verticas sp. nov., C. wara sp. nov. and C. wauana sp. nov. Only one described species(C. cyclopica Kimmins, 1962) is shared by the two adjoining countries. Speciesseparation is based almost entirely on male genitalic characteristics. TheC. papuana species group (after Mey, 2006; Oláh, 2014) is reaffirmed; its key features being inferior appendages with the sub-terminal or terminal process elongate and an elongate ventral process on segment IX. All 58 species treated here are endemic to New Guinea, except for C. biramosa, which was originally recorded from the nearby Solomon Islands (Kimmins, 1957).
STEM VE EĞİTİMDE KULLANIMINA YÖNELİK YAPILAN LİSANSÜSTÜ ÇALIŞMALARIN İNCELENMESİ
Authors: CEYLAN Satı
Published: May 2021

Bu çalışmanın amacı, 2013-2020 yılları arasında Türkiye’de STEM ve eğitimde kullanımına yönelik yapılan lisansüstü tezleri inceleyerek alan eğitimi hakkında genel yönelimleri belirlemektir. Çalışmada nitel araştırma yaklaşımlarından doküman incelemesi yöntemi kullanılmıştır. Çalışma kapsamında incelenen 150 araştırmaya YÖK Ulusal Tez Merkezi’nden “STEM” anahtar kelimesi kullanılarak ulaşılmıştır. Tespit edilen lisansüstü tezlerin betimsel içerik analizi Sözbilir ve Kutu (2008) tarafından geliştirilmiş olan “Makale Sınıflama Formu” yardımıyla yapılmıştır. Çalışmalar tür, tamamlanma yılı, yazar cinsiyeti, örneklem profili, örneklem büyüklüğü, alan, üniversite, araştırma deseni, araştırma yöntemi, veri toplama araçları ve veri analiz yöntemleri açısından değerlendirilmiştir. Çalışmanın güvenirliğini sağlamak amacıyla tekrar kodlama güvenirliği hesaplanmış ve veriler frekanslara dayalı olarak tablolar halinde sunulmuş ve yorumlanmıştır. Çalışma bulgularına göre, incelenen lisansüstü tezlerin büyük bir bölümünün 2019 yılında Gazi Üniversitesi’nde kadın araştırmacılar tarafından STEM’in fen bilimleri eğitiminde kullanımının ortaokul öğrencilerinin başarı, beceri, problem çözme, yaratıcılık, muhakeme, bilişsel düşünme kalıcılığa etkisini incelemek üzere çoğunlukla yüksek lisans düzeyinde, karma desende gerçekleştirilmiştir. Elde edilen veriler çoğunlukla likert tipi anket/ölçekler ve başarı testleriyle toplanmış ve betimsel analiz yöntemleri ile analiz edildiği tespit edilmiştir.
OKUL ÖNCESİ ÖĞRETMENLERİNİN PEDAGOJİK İNANÇLARININ ÖZ-YETERLİK VE ELEŞTİREL DÜŞÜNME AÇISINDAN İNCELENMESİ
Authors: ARSLAN Aykut , KUTLUCA Ali Yiğit
Published: May 2021

Bu araştırmanın temel amacı; okul öncesi öğretmenlerinin öğretme-öğrenmeye yönelik pedagojik inançların öz-yeterlik ve eleştirel düşünme becerileri açısından incelenmektir. Bununla birlikte okul öncesi öğretmenlerinin eleştirel düşünme becerileri, pedagojik ve öz-yeterlik inançlarının kıdem, yaş ve eğitim düzeyi değişkenlerine göre anlamlı farklılık gösterip göstermediği incelenmiştir. Sakarya ili Adapazarı, Arifiye, Erenler ve Serdivan ilçelerinde MEB’e bağlı okullarda görev 272 okul öncesi öğretmenin katıldığı ve ilişkisel tarama modelin de gerçekleştirilmiştir. Araştırmada okul öncesi öğretmenlerinin bilgilerini toplamak için “Pedagojik İnanç Sistemleri Ölçeği, Eleştirel Düşünme Tutum Ölçeği ve Öğretmen Öz-Yeterlik Ölçeği” kullanılmıştır. Ölçekler yardımıyla toplanan verilerin analizi SPSS 22 yardımıyla çözümlenmiştir. Bu araştırmadaki problem sorularını yanıtlamak için, betimsel istatistikler yapılmıştır. Araştırmanın sonucuna göre okul öncesi öğretmenlerinin pedagojik ve öz-yeterlik inançlarının yüksek olduğu, eleştirel düşünme tutumlarının ortalamanın üzerinde olduğu sonucuna ulaşılmış, okul öncesi öğretmenlerinin eleştirel düşünme tutumları ve öz-yeterlik inançlarının, pedagojik inanç ile orta düzeyde ve anlamlı bir ilişkisi olduğu sonucuna ulaşılmıştır. Buna ek olarak ilgili bağımsız değişkenlerin birlikte, okul öncesi öğretmenlerinin pedagojik inanç düzeyi üzerindeki toplam varyansın yaklaşık %35’ini açıkladığı sonucuna ulaşılmıştır
ÜSTÜN YETENEKLİLERDE YARATICILIK ÜZERİNE BİR BİBLİOMETRİK ARAŞTIRMA
Authors: YURTÇU Meltem , GÜZELLER Cem , ERDEM GÜRLEN Eda
Published: May 2021

Bu çalışmada yaratıcılık ve üstün yetenek kavramlarını içeren makaleler sosyal ağ analizi ile incelenmiştir. Bu makalalerin daha çok hangi zaman aralığında yapıldığı ve hangi makalelerin bu zaman aralıklarında önemli bir etkiye sahip olduğu araştırılmıştır. Ortak atıf analizini ve doküman analizini gerçekleştirmek için CiteSpace programı kullnılmıştır. Araştırma sonucunda, atıflar arasındaki ilişkiye göre, üstün yetenek ve yaratıcılık kavramlarıı içeren en çok atıf alan ve önemli makaleler sunulmuştur. Veri tabanında yer alan önemli makaleler arasıda Türkiye de yapılmış olan makaleleri de görmek mümkündür. CiteSpace gibi sosyal ağ profilini yansıtan programların yardımıyla, çalışma konusu belirlenebilir, literatürdeki eksiklikler veya boşluklar hakkında güncel bilgiler elde edilebilir.
Teaching efficacy of U.S. Air Force enlisted professional military educators during the COVID-19 pandemic
Authors: Keys Jason
Published: May 2021

Due to the COVID-19 pandemic, U.S. Air Force Enlisted Professional Military Education (EPME) was forced to deliver traditionally in-person leadership development interventions in an online, instructor-facilitated format for the first time in the history of the programme. Despite the absence of training to teach in online learning environments, hundreds of instructors within 80 schoolhouses were charged with embracing this pedagogic shift to continue developing enlisted leaders during a global pandemic. This study examined the sense of self-efficacy of 129 instructors across all levels of U.S. Air Force EPME by utilising a 32-item self-efficacy measurement instrument. This study has implications for enlisted and officer professional military education leaders interested in training and developing faculty to teach in online learning environments. Overall, instructors felt confident in their abilities to teach online, despite pre-service training having focussed solely on in-person instruction. Results indicated a positive relationship between higher senses of self-efficacy and years of instructors’ experience. Instructors who worked with an instructional support specialist showed a significantly higher sense of self-efficacy than instructors who did not. Future studies should aim to integrate multiple perspectives of the efficacy of U.S. Air Force EPME instructors, such as those from students, administrators and colleagues.
Delineating and Interpreting the Gold Veins Within Bida and Zungeru Area, Niger State Nigeria, Using Aeromagnetic and Radiometric Data
Authors: Aliyu Shakirat Bukola , Adetona Abbass. Adebayo , Adewuyi Rafiu Abdulwaheed , Jude Ejepu , Adewumi Taiwo
Published: May 2021

Both Airborne Magnetic and Radiometric datasets were employed to interpret the geology and geological structures that serve as host to gold and associated minerals within the Bida and Zungeru, Niger State, Nigeria. An area of 55 by 110km2, contained within the cretaceous sediments of Bida Basin and the meta-sediments of Zungeru-sarkin-pawa schist belt. Data interpretation involve the application of a mathematical algorithm for data enhancing such as, Reduce to the Equator, Analytical signal, First Vertical Derivative, and Centre for Exploration Targeting (CET) to the magnetic data, and Ternary imaging to the radiometric data, with a sole aim of mapping geological structures such as faults fracture folds joints and geological boundaries and possible gold mineralization veins that arise from hydrothermally altered zones. Two major geological units inhibit the study area, the cretaceous sediment, and the meta-sediments, major feature identifies within the Cretaceous sediment are the folds majority of which are located within the contacts. The result of the 1VD display is the vivid picture of the observed structural features such as faults fractures folds’ contacts labeled F1 to F8 both within the high region of magnetic susceptibility (in red) and low regions (in blue) geology contacts (yellow), folds (bold yellow) all across the field. Prominently at the North-Western corner of the study area are sets of linear structure that trend NE-SW, located within the contacts between the mylonites and the amphibolites and the belt-type meta-sediments located around Katakwo, Gindei, Kwange, Gabas and Akusu villages. Equallyworth mentioning are sets of lineament (in blue) trend E-W all across the mid-region of the study area, precisely at the Eastern corner within and below the Federal University of Technology Minna around Kata-eregi, Sabon-Dagan, Kakaki down Minkwoigi, Sunbwagi, Kakagi, Sabon dagga, and Bobo-shiri towns, where the majority of volcanic activities must have been recorded. The airborne radiometric show mobilization of the immobile thorium Th, concentration, and this also indicated hydrothermally altered zones. The increase in potassium concentration and decrease in K/Th relation observed from radiometric interpretation are very pinpointing of hydrothermal activities within the study area. The gold mineralisations are found within this vein and in the adjacent, highly deformed host rock located below the Federal University of Technology Minna Campus. The deformation seems to comprise principally of pebbly schist, amphibolites along fine-grained and magnetite.
Interfering Embodiment Effects on Chinese “Transfer Verbs”
Authors: Wang Huili , Li Linxi , Yan Xiaoli , de Vega Manuel
Published: May 2021

This research aims to explore the processing of embodied meaning during the comprehension of Chinese transfer verbs which is different from the typical structure of transfer verbs in English and other Indo-European languages. An Action-sentence Compatibility Effect (ACE) paradigm was used, in which participants were asked to read sentences describing a transfer verb either away from (At the court, a player throws tennis ball to opposite side) or toward themselves (At the court, a player throws tennis ball to my side). Following the transfer verb, a visual motion cue appeared on the screen after one of the three stimulus onset asychrony (SOA), prompting participants to move their hand either away from or toward themselves by pressing a button. The results showed that under short SOAs (cue presented 100 ms or 200 ms after the verb onset), interference occurred in the matching conditions. After larger delaying of the cue (350 ms), facilitation emerged in matching conditions. The results reflect special features in describing motion events by using Chinese transfer verbs, providing evidence that the comprehension of transfer-verb sentences in Mandarin activates the sensory-motor systems of our body, either interfering or facilitating a motor response performed in parallel.
La Françafrique est-elle chose du passé? La joute française au Sahel: implications et désillusions
Authors: Soucy Charles
Published: May 2021

The French army is entrenching itself in the sahel region since 2014, claiming a near victory over the multitude of armed groups operating in the region. The french implication relies heavily on special operation units waging a movement war against the so-called "terror groups". But what are the true natures of those groups? Such armed groups are actually far from being the archetype of international Jihadist organisations that the french government claims they are fighting. Paris Meanwhile, by fighting in those countries is actually entrenching itself geographically for its own geopolitical gains rather than pursuing humanistic goals. By supporting unrepresentative governments and relying on heavy military presence in the Sahel, the French governemnt is actually helping recruitment among those armed groups and is uncontiously helping their creations.
Group 4: Gendering Wicca: The Sexualization of the Modern Witch
Authors: Bisson Chelsea , Funnell-Kononuk Emma , Hurley Samantha , Kerrick Andrew , Minken Melissa , Pockett Morgan
Published: May 2021

Wicca is often perceived as a sexually perverse cult. Its focus on human sexuality is frequently misattributed to an obsession with sex and unsafe practices. In Western culture particularly, Wicca has a negative connotation attached to the figure of the witch. Scholars have argued that one of the motivations behind the historical persecution of women as witches has been to control female sexual power, including reproductive labour. Today, the association between the figure of the and illicit female sexuality continues to be played out in media and even Halloween costumes. Contrary to these misconceptions, Wiccans view sexuality as a component of their celebration of life and fertility. Sexuality is not taken lightly; in fact it is understood as something sacred. Sexuality is used to understand the interconnectedness of all beings and to harness power. This paper explores the Wiccan practices known as The Great Rite and Skyclad, to explain how Wiccan beliefs and practices about sexuality are important components of their religiosity.
6. Effect of Erk vs. PI3 Kinase Activation by the Middle Tumour Antigen of Polyoma Virus Upon Gap Junctional, Intercellular Communication of Cultured Cells
Authors: Greer Samantha
Published: May 2021

Gap junctions are protein channels that permit the passage of small molecules and ions between adjacent cells. Gap junctional permeability is thought to lead to decreased cellular proliferation. In fact, a number of oncogenes, such as the middle tumour antigen of polyoma virus (mT), are known to interrupt gap junctional, intercellular communication (GJIC). The Ras/Raf/Mek/Erk and phosphoinositide 3‐kinase (PI3 kinase)/Akt signalling pathways, two commonly studied pathways in malignancy, are both activated by mT, and are both required for complete transformation by mT. This study is the first to investigate the effects of Erk vs. PI3 kinase activation by mT on GJIC in cultured cells. To this effect, two mT mutants,impaired in their ability to activate either the Erk or PI3 kinase pathway, were expressed through retroviral infection in rat liver epithelial T51B cells which have extensive GJIC. A novel in situ electroporation technique was used to quantitate the degree of GJIC in T51B cells expressing each mT mutant. The results showed that the Erk‐activating mutant exhibited the interrupted GJIC that is characteristic of mT expression, while the PI3 kinase‐activating mutant displayed levels of GJIC comparable to those observed in wild‐type T51B cells. This suggests that Erk activation by mT is sufficient to suppress GJIC, while PI3 kinase activation, despite its contribution to neoplastic transformation, is unable to interrupt GJIC. Given the importance of GJIC in cellular proliferation, apoptosis and differentiation, identifying the pathways affecting gap junctional permeability may yield novel targets for cancer therapy.
Theory and HIV/AIDS: Investigating Disability Theory as a New Conceptual Framework for HIV and AIDS-Related Stigma
Authors: Wyman-McCarthy Tim
Published: May 2021

The title of Paula Treichler’s 1999 book, How to Have Theory in an Epidemic, raises an important question: is it possible, moral, or even useful to approach theoretically an event as real and as devastating as the HIV and AIDS epidemic in South Africa? This presentation will investigate the way in which existing attempts to theorize HIV and AIDS-related stigma have been seen as inadequate, and how the newly emerging strand of critical theory known as ‘disability studies’ may provide a particularly useful vocabulary by which to discuss the stigmatization of those living with HIV or AIDS. This line of inquiry leads to a number of further questions: What is the relationship between disease and disability? Is it fair to approach an issue as complicated as HIV and AIDS-related stigma through one theoretical lens, or is an interdisciplinary approach linking Health Studies, Queer Theory, Postcolonial Theory, and Disability Theory necessary? And finally, what are the useful implications of linking Disability Theory with the study of HIV and AIDS-related stigma? The presentation will approach these questions by placing into relationship critical work from anthropology, disability studies, health studies as well as creative work in the form of Siphiwo Mahala’s 2007 novel When a Man Cries.
A Study of Gas-Exchange Variability in the Hepatopulmonary Syndrome
Authors: Nayyar Dhruv
Published: May 2021

The hepatopulmonary syndrome (HPS) is a rare condition defined as the triad of cirrhosis, intrapulmonary vascular dilatations (IPVDs), and abnormal gas-exchange. Recently, there has been controversy in the scientific literature regarding the criterion for abnormal gas-exchange that should be used in this syndromic definition. Although current expert recommendations call for an alveolar-arterial oxygen gradient cutoff of >20 mm Hg (a low threshold cutoff), other authors have suggested higher threshold cutoffs. In our clinical experience, we have noted significant variability in the alveolar-arterial oxygen gradient over time among patients with possible HPS. Our objectives were to characterize and formally describe this variability in order to propose a new, more stable diagnostic cutoff. We analyzed longitudinal gas-exchange data over five years from 58 patients who were referred to the Toronto HPS Clinic. Each patient had an average of 4.19 visits on file. Using the expert recommended cutoffs, we found that 20.69% of patients fluctuate above or below the threshold for abnormal gas-exchange despite stability of clinical symptoms. Using a stricter two-visit partial pressure of arterial oxygen cutoff of <80mm Hg, no patients fluctuate above or below the cutoff. The stricter cutoff also has stronger correlations with clinical indicators of disease progress and severity. The currently recommended cutoffs for abnormal gas-exchange in HPS patients may not be the best threshold to establish a stable diagnosis and distinguish patients with respect to disease progress and severity.
“Graphics, Social Movements, and the Race to Eradicate Abortion: Why America Will Take Gold”
Authors: Kurzawa Zuza
Published: May 2021

Skeletal figures of Holocaust victims, wounds and scars of the enslaved, blackened lungs of the smoker; powerful images convey powerful narratives. Over the past century, media has become increasingly pervasive. For social movements, this tool played a key role in achieving mass societal change. Looking to mimic a lasting paradigm shift, pro-life groups have realized that images are the catalyst for change. Ignoring the normative element of abortion, it is important to acknowledge two common goals shared by the pro-life and pro-choice communities. First, both desire to help women. Second, both want to reduce the number of abortions. The obvious disconnect, is the means under which both goals are met. However, over the past decade, the efforts of various ‘Centres for Bio-Ethical Reform’ have shown that one of the most effective methods in achieving both goals has been through graphic image campaigns. It will be argued that in order to help couples make informed decisions, and reduce the number of abortions, images of human development and abortion must be readily available to couples in crisis pregnancy. Using the findings and testimonies from the Centre for Bio-Ethical Reform Florida 2011 mission, it can be demonstrated that convictions about abortion change in face of graphic imagery. Because it does not overtly challenge current legislation, but instead decreases the number of abortions, it ought to be honoured by both parties. Under the protection of the first amendment, pro-life groups in America can freely share these images to encourage discussion. In Canada, ‘freedom of speech’ and ‘freedom of expression’ are often compromised in the face of adversity; conclusively the pro-life message is often silenced. Thus, by virtue of being able to share the reality of the procedure, Americans are leading in the race to eventually eradicate the perceived necessity of abortion.
Sustainable Water Filters for the Developing World: A Focus on Cholera
Authors: Krentz Andrew , Magowan Ryan , Millington Liane
Published: May 2021

The goal of this project is to design a point-of-use water filtration device constructed from locally available geological materials, which is capable of filtering out Vibrio cholerae bacteria. Vibrio cholerae occurs naturally in tropical seawater, as well as in human waste. It is a water-borne pathogen, and thus human populations are especially vulnerable during and after natural crises such as floods, tsunamis and earthquakes. The basic filtration unit uses readily available supplies including pop bottles, fabric (such as that from a T-shirt), and a geologic material, such as sand, clay or zeolites. Tests utilizing yeast as a surrogate for Vibrio cholerae are currently ongoing.
Ready, Set, Go: Increasing Awareness of the Social Benefits of Being Active Among People with Spinal Cord Injury
Authors: Crowson Julie
Published: May 2021

Previous research has shown that presenting yourself as an “exerciser” through participation in physical activity (PA) can help alleviate stigma associated with having a disability. The purpose of this study is to explore whether brief messages emphasizing the social benefits of PA affect intentions to engage in PA among people with spinal cord injury (SCI). Ninety inactive adults with SCI will respond to a baseline questionnaire and will receive a message promoting the social benefits of PA over the telephone. In a two-week follow-up interview, affective and instrumental attitudes, intentions, and stigma consciousness will be measured. Data is currently being collected and preliminary results will be presented. It is hypothesized that messages promoting social benefits of PA will lead to more positive attitudes and increased intentions to engage in PA.