bluuebunny/crossref_metadata_2025 huggingface dataset:
EVALUATION OF ORAL IMMUNOTHERAPY IN HAZELNUT ALLERGY: PEDIATRIC EXPERIENCE IN TOULOUSE
Authors: Casanovas Natacha , Gruzelle V. , Broue-Chabbert Anne , Pontcharraud R. , Kamphuis Jasper , Martin-Blondel Audrey , Guilleminault Laurent , michelet marine
Published: May 2023

Background: Oral immunotherapy (OIT) seems to be a promising
treatment for hazelnut allergy but the available data is limited. Our
objective was to evaluate the proportion of patients desensitised after
hazelnut OIT, as well as to evaluate the proportion and type of adverse
events (AEs) occurring during OIT and to identify clinical and
biological factors predictive of OIT success. Methods:
Single-center retrospective study, including pediatrics patients. Oral
food challenge (OFC) was performed before and after OIT. For each
patient, we collected clinical data and the level of hazelnut IgEs f17,
nCor a 9, rCor a 14, at the time of the 2 OFCs. Results: After
12 months of OIT, 52.2% of children were desensitized. Those not
desensitized increased their reactogenic dose by 6-fold. One-third
presented an AE, mostly non-serious. They were significantly more likely
to be desensitized if the levels of hazelnut IgE f17, nCor a 9, and rCor
a 14 were initially low. Predictive thresholds of 16.3 kUA/L for
hazelnut IgE f17 (p=0.0066) and 4.13 kUA/L for rCor a 14 (p=0.0447) were
calculated with an NPV of 85%. Conclusion: Hazelnut OIT is
effective in inducing tolerance in 52.2% of children. Children with
lower specific IgEs (hazelnut f17, nCor a 9 and rCor a 14) were
significantly more likely to achieve desensitization after 12 months of
OIT. Predictive thresholds for f17 and rCor a 14 were defined above
which the risks of failure of OIT are high.
YouTube as a source of patient information on external cephalic version: cross sectional study
Authors: Dijk Merle van , Marel A. van der , Rheenen-Flach Leonie van , Ganzevoort Wessel , Moll Etelka , Scheele Fedde , Velzel J.
Published: May 2023

Objective The objective of this study was to investigate the
available information on YouTube about External Cephalic Version (ECV)
and assess the quality and usefulness. Study design A YouTube
search was performed with five search terms, selecting the first 35
results. A quality assessment scale was developed to quantify the
accuracy of medical information of each video. Main outcome measure was
usefulness score. The videos ware divided into useful, slightly useful
and not useful. Source of upload was divided into five subcategories,
and medical or non-medical. Secondary outcomes included: audience
engagement, misinformation and encouraging or discouraging ECV.
Results 70 videos were analysed, only 14.3% was defined as
useful. Every useful video was uploaded by educational channels or
health care professionals, and 80% was from a medical source. Over half
of the not useful videos were uploaded by childbirth attendants and
vloggers. Childbirth attendants scored highest on audience engagement.
The presence of misinformation was low throughout all groups. Two thirds
of the vloggers encouraged ECV to their viewers. Conclusion A
minor percentage of videos on ECV on YouTube is considered useful.
Vloggers often encouraged their audience to opt for ECV. Groups with a
higher audience engagement, had a lower usefulness score compared to the
groups with a lower audience engagement but a higher usefulness score.
Sources from medically accurate videos should cooperate with sources
with a high audience engagement to contribute to the uptake of ECV by
creating more awareness and a positive attitude and thereby lowering the
chance for a caesarean delivery because of term breech.
Experience From the 2021 Floods in the Netherlands: Household Survey Results on Impacts and Responses
Authors: Endendijk Thijs , Botzen W J Wouter , Moel Hans De , Aerts Jeroen C J H , Duijndam Sem J , Slager Kymo , Kolen Bas , Kok Matthijs
Published: May 2023

Abstract content goes here
Occurrence of ECH waves in Jovian magnetosphere: comparison with Earth and Saturn
Authors: Joseph Jayasri , Jaynes Allison N , Kurth William S , Menietti J D
Published: May 2023

Regions of ECH occurrence in different planetary magnetospheres. Two
distinct regions of ECH waves are present in Saturn and Jupiter. ECH
waves are seen in the equatorial regions outside the high density
plasmasphere / plasma torus and also at intermediate latitude in the
magnetospheres, where plasma is confined in a thin disc near centrifugal
equator.
PIC simulations of overstretched ion-scale current sheets in the magnetotail
Authors: Arnold Harry , Sitnov Mikhail I.
Published: May 2023

Onset of reconnection in the tail requires the current sheet thickness
to be of the order of the ion thermal gyroradius or smaller. However,
existing isotropic plasma models cannot explain the formation of such
thin sheets at distances where the X-lines are typically observed. Here
we reproduce such thin and long sheets in particle-in-cell simulations
using a new model of their equilibria with weakly anisotropic ion
species assuming quasi-adiabatic ion dynamics, which substantially
modifies the current density. It is found that anisotropy/agyrotropy
contributions to the force balance in such equilibria are comparable to
the pressure gradient in spite of weak ion anisotropy. New equilibria
whose current distributions are substantially overstretched compared to
the magnetic field lines are found to be stable in spite of the fact
that they are substantially longer than isotropic sheets with similar
thickness.
Strong Evidence of Heterogeneous Processing on Stratospheric Sulfate Aerosol in the Extrapolar Southern Hemisphere Following the 2022 Hunga Tonga-Hunga Ha'apai Eruption
Authors: Santee Michelle L. , Lambert Alyn , Froidevaux Lucien , Manney Gloria L , Schwartz Michael J. , Millan Luis , Livesey Nathaniel J , Read William G. , Werner Frank , Fuller Ryan A.
Published: May 2023

The January 2022 eruption of Hunga Tonga-Hunga Ha’apai (HT-HH) caused
the largest enhancement in stratospheric aerosol loading in decades and
produced an unprecedented enhancement in stratospheric water vapor,
which led to strong stratospheric cooling that in turn induced changes
in the large-scale circulation. Here we use satellite measurements of
gas-phase constituents together with aerosol extinction to investigate
the extent to which the thick aerosol, excess moisture, and strong
cooling enabled heterogeneous chemical processing. In the southern
tropics, unambiguous signatures of substantial chlorine and nitrogen
repartitioning appear over a broad vertical domain almost immediately
after the eruption, with depletion of N2O5, NOx, and HCl accompanied by
enhancement of HNO3, ClO, and ClONO2. After initially rising steeply,
HNO3 and ClO plateau, maintaining fairly constant abundances for several
months. These patterns are consistent with the saturation of N2O5
hydrolysis, suggesting that this reaction is the primary mechanism for
the observed composition changes. The southern midlatitudes and
subtropics show similar but weaker enhancements in ClO and ClONO2. In
those regions, however, effects of anomalous transport dominate the
evolution of HNO3 and HCl, obscuring the signs of heterogeneous
processing. Perturbations in chlorine species are considerably weaker
than those measured in the southern midlatitude stratosphere following
the Australian New Year’s fires in 2020. The moderate HT-HH-induced
enhancements in reactive chlorine seen throughout the southern middle
and low-latitude stratosphere, far smaller than those in typical winter
polar vortices, do not lead to appreciable chemical ozone loss; rather,
extrapolar lower-stratospheric ozone remains primarily controlled by
dynamical processes.
Improvement of energy properties of lignocellulosic waste by thermochemical conversion into biochar
Authors: Lopicic Zorica , Antanaskovic Anja , Sostaric Tatjana , Adamovic Vladimir , Orlic Marina , Milojkovic Jelena , Milivojevic Milan
Published: May 2023

Peach stones, a valuable agro-industrial by-product available in many countries worldwide, comprise a renewable resource, which can be widely applied for multifunctional purposes. Its important advantages such as high-energy value, low ash content, low price and wide abundance, make peach stones an ideal fuel for energy production, but also for new materials synthesis. Although peach stones exhibit adequate combustion properties, allowing their direct use with minimal physical/chemical treatment, they often need further modification in order to improve their thermal properties, where slow pyrolysis is frequently used. This study aims to provide a practical and effective solution to the revalorization of waste biomass originating from the fruit processing industry, through slow pyrolysis in order to convert this waste into carbonaceous material-biochar. The thermo-chemical conversion of raw biomass resulted in a stable material with excellent fuel properties, with higher mass energy density and grinding ability, providing biochar with properties, in energy sense, similar or even better than a coal. Biochar has a higher fixed carbon content and a higher energy potential than biomass itself, and its application as a biofuel might reduce emissions of greenhouse gases, as it reduces the amount of waste landed and increases the share of energy generated from renewable sources.
Workforce aging and decent work in the era of the digital economy - towards a holistic public policy approach
Authors: Stojkovic-Zlatanovic Sanja , Jovanovic Predrag
Published: May 2023

The aging of populations and the labour force, combined with the process of digitalisation, have a significant impact on labour markets, employment, and labour rights worldwide. Industries and jobs that rely on age-appreciating skills, which improve with age, are positively affected by both aging and digitalisation, since automation compensates for the lower physical abilities of older workers, thereby increasing their productivity. On the other hand, automation threatens physical and routine jobs that require low skills. In this paper, the authors used an empirical approach and inductive method to analyse the simultaneous influence of aging and digitalisation on workforce skills and demand for employees. In the future, governments? efforts to stimulate employment and decent work should include providing high-quality education that prepares the workforce to gain and upgrade creative and social skills. These changes require policy and regulatory interventions to address the issues of skill shifts and the transition towards both digital and green economies, while simultaneously promoting and standing for decent work conditions. This presupposes that businesses introduce and adopt sustainable, dynamic, and inclusive workplace practices. The authors propose the age management mechanism as a human resource tool, as well as its legal counterpart, the age-responsible due diligence approach, for managing the necessary changes.
Perancangan Perangkat Makan Bersama Bertolak dari Tradisi Bajamba Minangkabau Menggunakan Metode Ekstraksi Unsur Visual
Authors: Raisa Shofia  , Aulia Wildan
Published: May 2023

Abstract—Bajamba is one of the communal dining activities in Indonesia from the Minangkabau tradition. The article views that the uniqueness of the Minangkabau Bajamba tradition can be applied to more contemporary tableware sets. This study aims to design a contemporary tableware set using ceramic materials by emphasizing the application of the visual elements of traditional trays and cloth covers of Minangkabau. The number of people, as well as the types and the number of menus in the Bajamba meal, are the main references for the tableware set design. The decision on the dimensions, shape, and concept of the tableware set refers to the Bajamba tradition of dining. This study offers a tableware set design consisting of a tray with a diameter of 50 cm, four small plates, and four plates of curry sauce. The comprehensive prototyping test results show that the process of making a tray requires a plate with a diameter of approximately 55 cm, so it requires a large drying furnace. This design offers its uniqueness inspired by the Bajamba tradition which can provide a different and enjoyable dining experience. In addition, its use can help preserve the Bajamba Minangkabau tradition through the use of tableware sets inspired by this tradition.
Keywords: bajamba, tableware set, communal dining, tradition, minangkabau
 
Abstrak—Bajamba merupakan salah satu tradisi makan bersama di Indonesia yang berasal dari Minangkabau. Artikel ini memandang bahwa keunikan tradisi bajamba Minangkabau dapat diterapkan kepada perancangan perangkat makan bersama yang lebih masa kini. Perancangan ini bertujuan untuk menghasilkan desain set perangkat makan bersama dari bahan keramik dengan menekankan pada terapan unsur visual dulang dan dalamak tradisional Minangkabau. Jumlah kumpul orang, serta jenis dan jumlah menu dalam sajian Bajamba menjadi referensi utama dalam memutuskan desain. Keputusan dimensi, bentuk dan konsep perangkat makan mengacu pada aktivitas makan tradisi bajamba. Perancangan ini menghasilkan satu set perangkat makan bersama yang terdiri dari satu dulang berdiameter 50 cm, empat piring kecil, dan empat piring kuah gulai. Hasil uji coba purwarupa menunjukkan bahwa proses membuat dulang memerlukan plat berdiameter kurang lebih 55 cm sehingga memerlukan tungku pengering yang besar. Desain ini menawarkan keunggulan berupa keunikan tersendiri yang terinspirasi dari tradisi Bajamba yang dapat memberikan pengalaman makan yang berbeda dan menyenangkan. Selain itu, penggunaannya dapat membantu melestarikan tradisi Bajamba Minangkabau melalui penggunaan perangkat makan yang terinspirasi dari tradisi tersebut.
Kata kunci: bajamba, perangkat makan, makan bersama, tradisi, minangkabau
Will future extinctions occur at the same places where the past ones did? A review involving mammals and the IUCN Red List
Authors:   Universidade Federal do Estado do Rio de Janeiro, Drago Matheus C. , Vrcibradic Davor ,   Universidade Federal do Estado do Rio de Janeiro
Published: May 2023

Eighty-five mammal species are classified worldwide as Extinct on the IUCN Red List. In this study, we aimed to assess to which Orders these species belong, when they became extinct and the factors that led to their extinction. We also compared the factors that threatened the survival of these species with the ones that are currently threatening the species classified as Critically Endangered, as well as the areas where the extinct species could be originally found with the areas where Critically Endangered species are currently found. Our review was conducted using the advanced search tool of the IUCN Red List database (Taxonomy, Red List Category, Threats and Land Regions filters). Rodentia was the mammal Order with the highest number of Extinct species, whereas Primates was the Order with the greatest proportion of Critically Endangered ones. The last two (19th and 20th) centuries were the periods in which the greatest number of species was lost. We found remarkable differences between the factors threatening species survival and between countries with the highest number of Extinct species and the ones that contain a greater number of Critically Endangered species. The threat category responsible for most of the extinctions overall was «Invasive and other problematic species, genes and diseases». Nonetheless, factors associated with habitat loss and degradation seem to have become more important nowadays and, in addition, some «new» factors, such as «Energy production and mining», «Human intrusions and disturbance», «Pollution», and «Transportation and service corridors», which have not had much relevance for past extinctions, now appear as important threats to Critically Endangered species. Australia was the country that has lost the most mammal species (n = 26), followed by Haiti (n = 9), the Dominican Republic (n = 8), and Cuba (n = 6). On the other hand, when we evaluated the amount of species classified as Critically Endangered, Madagascar (n = 33), Mexico (n = 27), and Indonesia (n = 26) are the countries that concentrate the highest number of them. Thus, future extinctions are unlikely to occur in the same places as in the past because the human society's relationship with the environment has changed over time: human population has grown, habitat loss has become the predominant threat to many species and new threat factors have emerged.
SINIF ÖĞRETMENLERİNİN MATEMATİĞE İLİŞKİN İNANÇLARININ BELİRLENMESİ
Authors: GÜLLÜ Hasan , AKÇAY Ahmet Oğuz
Published: May 2023

Bu araştırma, sınıf öğretmenlerinin farklı değişkenler bakımından matematiğe ilişkin inançlarını tespit etmeyi amaçlamaktadır. Bu hedef doğrultusunda nicel araştırma yöntemlerinden tarama deseni tercih edilmiştir. Araştırmanın örneklemini Türkiye’nin farklı bölgelerinde görev yapan 316 sınıf öğretmeni oluşturmaktadır. Araştırma verileri Purnomo (2017) tarafından geliştirilen ve Güllü ile Akçay (2021) tarafından Türkçeye uyarlanan “Sınıf Öğretmenlerinin Matematiğe İlişkin İnançları Ölçeği” aracılığıyla elde edilmiştir. Elde edilen veriler SPSS (Sosyal Bilimler için İstatistik Programı) programı ile analiz edilmiştir. Bu doğrultuda normallik testi, bağımsız örneklem t testi, tek yönlü varyans analizi (ANOVA) ve basit doğrusal regresyon analizi gerçekleştirilmiştir. Uygulanan analizler neticesinde sınıf öğretmenlerinin matematiğe ilişkin inançlarının çağdaş düzeyde olduğu belirlenmiştir. Cinsiyet ve okutulan sınıf kademesinin sınıf öğretmenlerinin matematiksel inançları üzerinde anlamlı farklılık oluşturmadığı, görev yeri ve yaş değişkenlerinin ise sınıf öğretmenlerinin matematikte öğrenmeyi değerlendirmeye ilişkin inançları üzerinde anlamlı farklılık oluşturduğu tespit edilmiştir. Ayrıca sınıf öğretmenlerinin matematiğin doğasına yönelik inançlarının onların matematik öğretimi ve matematikte öğrenmeyi değerlendirmeye ilişkin inançları üzerinde pozitif yönde orta düzeyde etkili olduğu saptanmıştır.
MATEMATIK EĞITIMI LISANSÜSTÜ ARAŞTIRMALARDAN YANSIMALAR
Authors: ALA Aslı Merve , SAFA Süleyman , KANBOLAT Oben
Published: May 2023

ÖZ: Araştırmanın amacı, matematik eğitimi alanında Türkiye’de yayımlanan lisansüstü tez çalışmalarının genel eğilimini betimlemek için gerçekleştirilmiştir. Ulusal tez merkezi veri tabanı aracılığıyla matematik eğitimi anabilim dalında eğitim konulu 102 adet lisansüstü tez yayımlanma yılına, türlerüne, yöntemsel özelliklerine ve anahtar kelimelerine göre betimsel içerik analizi yapılmıştır.

Yapılan analizler neticesinde, matematik eğitimi anabilim dalında eğitim konulu ilk tezin 2003 yılında yayımlanan bir doktora tezi olduğu; yıllar içerisinde yayımlanan tezlerin büyük oranda yüksek lisans tezi olduğu tespit edilmiştir. Bunun yanında tezlerde tercih edilen araştırma yaklaşımlarına göre dağılımlar incelendiğinde, yüksek lisans ve doktora tezlerinin her ikisinde de nitel yaklaşımın çoğunlukla tercih edildiği; tezlerde tercih edilen araştırma deseni bağlamında ise deneysel desenin tercih edildiği görülmüştür. Matematik eğitiminde yayımlanan tezlerde en fazla araştırma yaklaşımına dair anahtar kelimelerin kullanıldığı ve bunu sırasıyla öğrenme alanı, genel, bilişsel beceriler, yöntemle ilgili nadiren de ölçme ve değerlendirme, matematiksel dil, duyuşsal beceriler, etnomatematik, matematik okuryazarlığı ve öğretmen yetiştirmeye dair anahtar kelimelerin kullanıldığı ifade edilebilir. Araştırma kapsamında incelenen bazı tezlerde araştırma yaklaşımı, deseni, çalışma grubu türü, büyüklüğü ve veri toplama aracına ilişkin bilgiye rastlanılmamıştır. Tezlerde özellikle yöntem bölümünde olan eksiklikler okuyucunun araştırma sürecini tam anlamıyla zihninde tasavvur etmesi zorlaşmaktadır. Bu bağlamda tez yazarlarının araştırmalarını raporlaştırırken bu hususlarda dikkatli olması önerilmektedir.
MÜZİK EĞİTİMİ ANA BİLİM DALLARINDA KULLANILAN KLARNET METOTLARA İLİŞKİN ÖĞRETİM ELEMANI GÖRÜŞLERİ
Authors: DAMAR Ali Taha , ŞENOL SAKİN Ajda
Published: May 2023

Çalgı eğitiminde metot kullanımı kelime anlamıyla da desteklenecek ölçüde eğitim yönteminin, yolunun belirleyicisi olduğu için çok önemlidir. Klarnet metotları incelendiğinde Türkiye’de kullanılan metotların neredeyse tamamının yabancı kaynaklar olduğu ve Türk müziği ögelerine yönelik içeriğin yer almadığı görülmektedir. Araştırma ile müzik eğitimi ana bilim dalı klarnet öğretim elemanlarına sorular yönelterek klarnet metotları hakkında fikirleri ve bu metotlarda Türk müziği ögelerinin eksikliğine yönelik görüşlerinin belirlenmesi amaçlanmaktadır. Bu amaç doğrultusunda müzik eğitimi ana bilim dallarında görev yapan 7 klarnet öğretim elemanı ile görüşmeler yapılmıştır. Elde edilen veriler içerik analizi yöntemiyle çözümlenmiştir. Verilerin çözümlenmesi sonucunda katılımcıların klarnet metotlarından beklentileri, kullandıkları klarnet metotları, metotların öğrencilerin seviyelerine göre tercihlerini etkileyip etkilemediği, kullandıkları mevcut metotların içerikleri ve müzikal gelişime katkısı, eser seslendirmeye katkısı ve eksikliklerine yönelik görüşlerine yönelik tema ve kodlar oluşturulmuştur. Araştırma sonucunda klarnet öğretim elamanlarının klarnet dersinde kullanılan metotları ve içeriklerini yeterli bulsalar da metotlarda si bemol klarnete yönelik Türk müziği ezgileri, makamları, ritimleri ve çağdaş Türk müziği eserlerinden pasajlar içeren bir metot olmamasını büyük bir eksiklik olarak gördükleri sonucuna varılmıştır.
ÖĞRETMEN ADAYLARININ GÖZÜYLE ÖĞRETİM ELEMANLARININ ÖĞRETİM YETERLİKLERİ
Authors: ŞAHİN Ümran
Published: May 2023

Bu çalışmanın amacı öğretmen adaylarının algılarına göre öğretim elemanlarının öğretim yeterliklerini ortaya koymaktır. Araştırmada nicel araştırma yöntemlerinden tarama deseni kullanılmıştır. Araştırmanın örneklemini Türkiye’de Ege Bölgesinde bulunan bir üniversitenin eğitim fakültesinde sınıf öğretmenliği ve okul öncesi öğretmenliği bölümlerinde öğrenim gören 4.sınıf öğrenciler oluşturmaktadır. Araştırmanın verileri Doğanay, A., Uyar, Yeşilpınar, M., Dinçer, S., Karaçoban, F. (2021)’nın geliştirdiği “öğretim elemanlarının öğretim yeterliklerini değerlendirme” ölçeği aracılığı ile toplanmıştır. Verilerin analizinde parametrik testlerden yararlanılmıştır. Araştırmanın sonuçlarına göre öğretim elemanlarının öğretim yeterlik düzeyleri “nadiren” aralığında çıkmıştır. Alt boyutlarda ise öğrenci merkezli ve öğretim boyutu (ara sıra aralığı) dışındakilerde genel sonuçla aynı (nadiren aralığı) çıkmıştır. Öğretime hazırlık ve etkili sunum boyutlarında öğretmen adayları öğretim elemanlarını nadiren yeterli görmektedir. Öğretmen adaylarının cinsiyetlerinin öğretim elemanlarının öğretim yeterliklerine ilişkin genel algılarında erkek öğretmen adaylarının lehine anlamlı bir farklılık görülmektedir. Alt boyutlarda baktığımızda ise sınıf içi-dışı iletişim ile öğretime hazırlık boyutlarında erkek öğretmen adaylar lehine anlamlı farklılıklar vardır. Öğretmen adaylarının öğretim elemanı yeterliklerine ilişkin algıları bulundukları bölüm değişkenine göre incelendiğinde etkili sunum boyutu dışındaki tüm boyutlarda ve toplamda sınıf öğretmenlerinin lehinedir anlamlı bir farklılığa rastlanmıştır
MATEMATİKSEL GÜVEN ÖLÇEĞİNİN GELİŞTİRİLMESİ: GEÇERLİK VE GÜVENİRLİK ÇALIŞMASI
Authors: ÖZTÜRK Mesut , ADA Kübra , ALBAYRAK Mustafa
Published: May 2023

Yapılan araştırmalar matematiksel güveni yüksek olan öğrencilerin genelde matematikte, özelde ise problem çözmede daha başarılı olabileceğini vurgulamıştır. Bu nedenle matematiksel güveni incelemeye yönelik yapılacak araştırmalar önemli görülmektedir. Ancak alan yazın incelendiğinde matematiksel güvene yönelik yapılan çalışmaların uluslararası alan yazında son yıllarda yoğunlaşmaya başladığı, bu yoğunluğun ise ulusal alan yazına yeterince yansımadığı belirlenmiştir. Bu durumun nedeni matematiksel güvene yönelik yapılan araştırmalarda daha çok nicel yöntemler kullanılmasına karşın ulusal alan yazında öğrencilerin matematiksel güvenlerini ölçebilecek nicel ölçme araçlarının bulunmaması olabilir. Bu nedenle ortaokul öğrencileri için matematiksel güven ölçeğinin geliştirilmesinin amaçlandığı bu çalışmada, geliştirilecek olan matematiksel güven ölçeğinin alan yazına katkı sağlaması ve araştırmalar için öncü olması beklenmektedir. Araştırmada nicel araştırma desenlerinden tarama modeli kullanılmıştır. Çalışmada iki aşamalı örneklem seçimi yapılmıştır. İlkinde 359 ortaokul öğrencisi katılmış ve bu öğrencilerden elde edilen verilerle ölçeğin yapısını belirlemek üzere açımlayıcı faktör analizi yapılmıştır. İkincisinde 145 ortaokul öğrencisi katılmış ve elde edilen verilere doğrulayıcı faktör analizi uygulanarak ölçeğin yapısının doğrulaması yapılmıştır. Çalışmanın sonucunda ortaokul öğrencilerinin matematiksel güven düzeylerini belirleyebilecek 10 maddeden oluşan geçerli ve güvenilir bir ölçme aracı geliştirilmiştir.
COVID 19 SALGIN DÖNEMİNDE SINIF ÖĞRETMENLERİNİN ÇEVRİM İÇİ DERSLERDE KARŞILAŞTIKLARI ZORLUKLARA İLİŞKİN GÖRÜŞLERİ
Authors: ARSLAN Yasemin , GÖK Bilge
Published: May 2023

Covid 19 virüsünün hayatımıza girmesi birçok alanda değişikliklere sebep olmuştur. Hastalığın bulaş riskini azaltmak, salgının yayılmasını önlemek için eğitim alanında da bir takım önlemler alınmıştır. Ülkemizde vakaların görülmesi ile okullar uzaktan eğitime geçiş yapmıştır. Pandemi öncesi uzaktan eğitim sürecini deneyimlemeyen öğretmenler bu sürece hazırlıksız yakalanmışlardır. Uzaktan eğitimin uzantısı olarak çevrim içi dersler öğretmen ve öğrencilerin hayatına girmiştir. Bu çalışmanın amacı, sınıf öğretmenlerinin çevrim içi ders sürecinde yaşadıkları zorluklara ilişkin görüşlerinin incelenmesidir. Nitel araştırma yöntemlerinden durum çalışması yönteminin kullanıldığı çalışmanın katılımcı grubunu Doğu Anadolu Bölgesi’nde yer alan bir ilde görev yapan 16 sınıf öğretmeni oluşturmaktadır. Veriler yarı yapılandırılmış görüşme formu kullanılarak toplanmıştır. Toplanan veriler içerik analizine tabi tutulmuştur. Araştırma sonuçlarına göre, öğretmenler çoğunlukla öğrencilerin teknolojik araçlara erişiminin olmamasından dolayı sıkıntı yaşadıklarını ve elektrik kesintisi, internet hızı gibi alt yapıdan kaynaklı sorunların çevrim içi derslerini etkilediğini dile getirmişlerdir. Velilerin öğrencilere uygun ders ortamı oluşturamadıkları ve çevrim içi ders veriminin düştüğü, öğretmenlerin ölçme ve değerlendirmenin nasıl yapılacağı konusunda bilgi sahibi olmadıkları ulaşılan sonuçlar arasındadır.
ERGENLERİN KİŞİLİK ÖZELLİKLERİNİN SALDIRGANLIK DÜZEYLERİ ÜZERİNDEKİ YORDAYICI ETKİSİ
Authors: KAYA Zöhre , DONAT BACIOĞLU Seda
Published: May 2023

Bu araştırmada, ergenlerin kişilik özelliklerinin saldırganlık düzeyleri üzerindeki yordayıcı etkisini incelemek amaçlanmıştır. Araştırmaya, farklı lise türlerinde öğrenim görmekte olan toplam 1235 ergen katılmıştır. Araştırmanın verilerinin toplanmasında, ergenlerin kişilik özelliklerini belirlemek üzere Hızlı Büyük Beşli Kişilik Testi (HBBKT), saldırganlık düzeylerini ölçmek üzere Saldırganlık Ölçeği (SÖ) kullanılmıştır. Araştırma yöntemi olarak değişkenler arasındaki ilişkiler, ilişkisel tarama modeli ile incelenmiştir. Araştırmadan elde edilen verilerin analizinde ise, korelasyon analizi ile çoklu regresyon analizi kullanılmıştır. Araştırmadan elde edilen bulgulara göre ergenlerin kişilik özellikleri ile saldırganlık ve saldırganlığın alt boyutları olan fiziksel, sözel, düşmanlık, öfke arasında anlamlı ilişkiler bulunmuştur. Uyumluluk, sorumluluk ve duygusal denge kişilik özellikleri saldırganlık ile negatif ilişkilidir. Dışadönüklük ise saldırganlık ile pozitif ilişkilidir. Son olarak yapılan regresyon analizinde ergenlerin uyumluluk, sorumluluk, duygusal denge ve dışadönüklük kişilik özelliklerinin saldırganlığı anlamlı düzeyde yordadığı görülmüştür. Kişilik özelliklerini incelemek saldırgan davranışların kaynağını tahmin etmede önemli bulunsa da gelecek araştırmalarda mizaç, karakter ve değer gibi değişkenlerin de incelenmesi önerilmektedir. Bireysel faktörlerin saldırgan davranışlara etkisini bilmek, saldırganlığı önlemede, ruh sağlığında sunulan önleyici hizmetlere ışık tutacaktır
Horse serum or equine platelet lysate increases total vascular endothelial growth factor A concentrations and correlates with vascular growth in an equine facial arterial ring assay
Authors: Mora-Pereira Mariano , Boone Lindsey , Naskou Maria , Wooldridge Anne
Published: May 2023

OBJECTIVE

To evaluate ex vivo angiogenesis of equine arterial rings in response to various growth media.

ANIMALS

Facial arteries were dissected from 11 horses post-euthanasia. Equine platelet lysate (ePL) was harvested from 6 horses.

PROCEDURES

Arteries were exposed to endothelial growth media (EGM) + horse serum (HS) for first sprout (FS), vascular regression (VR), and (basement membrane matrix [Matrigel]) lysis (ML) evaluation. Additional rings supplemented with (1) EGM, (2) EGM + EDTA, (3) endothelial basal media (EBM), (4) EBM + HS, or (5) EBM + human VEGF were compared for vascular network area (VNA) and maximum network growth (MNG). Additional rings exposed to EGM + ePL at 10-(10xePL), 5-(5xePL), or 2-fold (2xePL) increases from baseline platelet concentration, EGM + HS, EGM + platelet-poor plasma (PPP), EBM + PPP and EBM were analyzed for branch number, density, VNA, and VEGF-A concentration from days 0–3.

RESULTS

Arteries demonstrated sprouting in Matrigel supplemented with EBM alone. EGM + HS exposure resulted in no differences in FS (P = .3934), VR (P = .0607), or ML (P = .2364) between horses. VNA in EGM + HS was greater than EBM (P = .0015). MNG was greater in EGM + HS, EBM + HS, and EBM + hVEGF compared with EBM (P = .0001). ePL treatment did not have an overall significant angiogenic effect compared with supplementation with HS, PPP, or EBM alone; however, VEGF-A concentrations were higher for EGM + 10xePL, EGM + 5xePL, and EGM-HS compared with EBM and positively correlated with VNA (P = .0243).

CLINICAL RELEVANCE

Equine arterial rings serve as an ex vivo model for angiogenesis but have a high degree of variability. HS, PPP, or ePL support vascular growth, and HS and ePL may stimulate the secretion and be sources of VEGF-A.
Application development on Brassica species in aquaculture – a review
Authors: Vijayaram Srirengaraj , Razafindralambo Hary , Sun Yun-Zhang , Ghafarifarsani Hamed , Hoseinifar Seyed Hossein , Raeeszadeh Mahdieh , Doan Hien Van
Published: May 2023

Brassicaceae family are traditional, medicinal and nutritional value plants. Brassicaceae family produces valuable components to provide different types of beneficial effects for humans and animals such as anti-oxidant, antimicrobial, anticancer, anti-scurvy, anti-inflammatory, anti-hyperglycemic, anti-tumor, anti-diabetes, anti-stomach diseases, and anti-cardiac. This review mainly focuses to observe Brassicaceae family response in aquatic animals and provides some information collected from literature analysis regarding the development of aquaculture applications like Brassicaceae family plants used as a supplement to enhance nutritional value, replacement of fish meal, antimicrobial activity against pathogens, immunomodulatory effects, antioxidant, and growth activity of aquatic animals. This literature review analysis is helpful to enlighten for future research and development on the application in the aquaculture sector.
Evaluation of Distillers Dried Grains With Solubles in Aquafeeds – A Review
Authors: Ragab Sherine , Hoseinifar Seyed Hossein , Doan Hien Van , El-Haroun Ehab
Published: May 2023

The aquafeed industry faces many challenges, including reducing the cost of feed by reducing the quantity of fish meal and soybean meal and researching to replace them with other ingredients lower in cost. Furthermore, new low-cost feeds must improve growth and feed utilization while also ensuring fish health. During the past few decades, researchers have shown one of the low-cost and with appropriate nutritional value alternative protein sources to replace fish meal (FM) or soybean meal (SBM) is dried distillers grains with solubles (DDGS). Recently, the production of grain-based ethanol as a fuel additive has been increasing as the demand for biofuel has increased, and lessening dependency on fossil fuels has resulted in a dramatic rise in the amount of grains used for ethanol. DDGS are the primary co-product of dry-grind fuel ethanol plants. DDGS has the advantages of having high protein, fat, phosphorus, yield, and low cost. These valuable particles attributed to DDGS have raised controversy amongst feed nutritionists as to how they can proficiently replace fish meal or soybean meal. It has been discovered that DDGS can be replaced with fish meal or soybean meal without affecting growth. Therefore, the present review discusses the effects of dietary DDGS application in the fish feed formulation, the best dietary presence, the possible advantages in fish health, nutrient retention, and the economic benefits of DDGS application in aquafeeds.
Effects of dietary Lactobacillus helveticus ATC 15009 on growth performance, hematology parameters, innate immune responses, and the antioxidant status of rainbow trout (Oncorhynchus mykiss) under high rearing density
Authors: Jasim Saade Abdalkareem , Altalbawy Farag M.A. , Alameri Ameer A. , Ramírez-Coronel Andrés Alexis , Obaid Rasha Fadhel , Al-Hamdani Mais Mazin , Kadhim Abed J. , Zabibah Rahman S. , Alzahrani Hayat Ali , Farsani Sadegh Ghafari , Dadras Mahnaz
Published: May 2023

This study aimed to evaluate the effects of dietary probiotic supplementation of Lactobacillus helveticus on growth, digestive enzymes, and hematological, biochemical, immune, and antioxidant parameters, as well as intestinal microbiota of rainbow trout (Oncorhynchus mykiss). Fish (35.46±0.9 g) were fed with different levels of dietary L. helveticus: control, 1 × 106, 1 × 107, 1 × 108, and 1 × 109 at high stocking density (80 kg m−3) for 60 days. Results indicated that growth performance significantly improved in probiotic supplemented fish (P<0.05). Digestive enzyme parameters revealed that supplementation could significantly increase amylase, protease, and lipase (P<0.05). The treated groups showed significant improvements in serum immune parameters including lysozyme (LYZ), alternative complement (ACH50), respiratory burst activity (RBA), and myeloperoxidase (MPO) (P<0.05). Total protein (TP), albumin (ALB), and globulin (GLO) increased in fish fed experimental diets (P<0.05). Lactate dehydrogenase (LDH) activity was significantly lower in fish fed dietary additives (P<0.05) while white blood cells (WBC), lymphocytes, neutrophils, hematocrit (Hct), red blood cells (RBC) were significantly enhanced (P<0.05). Fish fed with supplemented diets showed significantly enhanced antioxidant status, catalase (CAT) and superoxide dismutase (SOD). Malondialdehyde (MDA) content was significantly lower in fish fed dietary additives (P<0.05). Lactic acid bacteria (LAB) in the treatment groups were significantly increased (P<0.05). In conclusion, dietary supplementation of L. helveticus reduced detrimental effects of high stocking density on growth performance and immune response. It appears that L. helveticus can be recommended as a beneficial probiotic feed additive for rainbow trout.
Dietary Effect of S-Methylmethionine Sulfonium Chloride on Growth, Serum Biochemical Parameters, Body Composition, and Expression of Some Related Genes in Oreochromis niloticus
Authors: Gewida Ahmed G.A. , Abouzed Tarek Kamal , Abdelghany Mohamed F. , Khames Doaa K. , Zayed Mohamed M. , Elsawy Hanan B. , AbdEl-Kader Marwa F. , Naiel Mohammed A.E.
Published: May 2023

The main objective of the current trial was to investigate the impacts of tilapia diets supplemented with S-methylmethionine sulfonium chloride (MMSC) on the growth performance, feed efficiency, body analysis, blood biochemistry and regulation of myostatin (MSTN) and insulin-like growth factor-1 (IGF-1) genes of nile tilapia (Oreochromis niloticus). The experimental fish (n=180) weighing 22.4±0.17 g were allocated randomly into three equal groups in triplicate as follows; the control group received an un-supplemented diet; the other two groups received two different levels of MMSC (0.2 and 0.4 g/kg) for eight weeks. The obtained findings demonstrated that tilapia diets enriched with small dosages of MMSC considerably (P<0.05) enhanced all assessed growth performance and feed efficiency indicators when compared with the control group. When compared to the control group, tilapia meals supplemented with 0.2 g MMSC significantly (P<0.05 or 0.01) raised blood protein profile, particularly total protein and globulin levels. Contrarily, blood creatinine levels were significantly (P<0.01) reduced in the group of tilapia fed diets containing MMSC (0.2 or 0.4 g/kg) compared to the group without receiving any supplementation. Whereas, fish body analysis showed higher significant increases in crude protein and ether extract levels (P<0.01) as well as reduced ash content (P<0.05) in the fish group that received lower MMSC doses in comparison to other treated and control groups. In addition, MMSC dietary supplementation significantly downregulated the expression of MSTN and upregulated IGF-1 mRNA expression compared with the control group. Additionally, both dosages of MMSC supplementation modestly enhanced the intestinal villus histomorphometric score indices with observed tall, thick, and various broad tips in comparison to the control group. In conclusion, it could be recommended that fish diets supplemented with 0.2 g MMSC per kg diet may promote the growth and general health status of Nile Tilapia.
Remote Sensing Image Object Detection Method Based On Improved YOLOv3
Authors: Lu Zhiyuan , Liu Bailin
Published: May 2023

In order to solve the problem that irregular targets and dense targets are difficult to be detected in optical remote sensing images, this paper improved the YOLOV3 model Firstly, in order to further combine the feature information of different scales, the PaNet structure is introduced into the FPN part of the original YOLOv3, and the obtained effective feature layer is continued to be extracted for a round of feature. The feature is not only up-sampled to achieve feature fusion, but also down-sampled again to achieve enhanced feature fusion SimOTA method is introduced to dynamically match positive samples and set different positive sample numbers for different targets, which not only improves the speed of the algorithm, but also reduces the extra hyperparameters Experimental verification using richer DOIR data sets shows that the detection ability of the improved algorithm is significantly improved. Compared with the original YOLOv3, its mAP improves by 15.1 points, among which the detection accuracy of dense small targets is improved the most.
One Novel Soft-Starting Control Strategy for Induction Motor Based on Space Voltage Vectors
Authors: Xie Shihong , Liang Rongmao , Liang Li , Yang Zhihao , Gao Xin
Published: May 2023

This study presents a novel control strategy of discrete variable frequency (DVF) based on space voltage vectors for a three-phase induction motor (IM) soft-starting. The proposed strategy is developed in four steps. First, conducting states of the three-phase thyristor circuits are analysed, and the formation mechanism of space voltage vectors is also demonstrated. Then, DVF control strategy of IM based on hexagon flux linkage loci is expounded categorically, which contains frequency f/7 control, frequency f/4 control, frequency f/3 control and ramp voltage control. Next, under two-phase stationary coordinate system, stator flux equation of IM is derived, and the decrease in stator flux when zero-vector voltage working is calculated accurately. In the end, an experimental system of IM based on three-phase thyristor circuits is constructed, and the experimental results are dealt with and compared with the usual ramp voltage technique. The study results show that IM driven by the proposed strategy can steadily operate at the preset discrete frequency, and the effective value of starting current of IM can be decreased by nineteen percent. The experimental results verify the conclusions.
Simulation of a Power Skiving Gear Cutting Process
Authors: Hrytsay Ihor , Stupnytskyy Vadym , Slipchuk Andrii
Published: May 2023

The results of the computer simulation of the cutting process of gears by the power skiving method are presented. Following the kinematics of the process, a method for generating 3D geometric models of undeformed sheared layers were developed, and their parameters were analyzed. The influence of tool geometry and technological parameters on cutting conditions is investigated. The simulation results and calculation of the tangential force and torque on the tool axis and their influence on the error due to angular elastic deformation of the tool are given.
Study of Interaction Water with Epoxy Resin – Impact on Mechanical Properties of Glass/Epoxy Laminate
Authors: Popardovská Eva , Popardovský Vladimír , Danko Ján
Published: May 2023

The aim of the article is to study the influence of the water content in the epoxy resin on the mechanical properties of the result laminate. The mechanism of resin contamination by air humidity is considered. The NIR spectrometry method was chosen to monitor the water content in the resin. The mechanical strength parameters of the laminate created from clean and water-contaminated resin were determined on the base of simulation and real tensile tests.
DECODING INDIA’S POPULAR CULTURE. THE ROMANIAN WOMEN VIEWERS’ GAZE
Authors: MARINESCU Valentina , RODIDEAL Anda Anca , MARINACHE Ramona
Published: May 2023

Our article starts from the assumption that the ingredients of success in the case of the Indian cultural products are based on their “cultural value”. India’s value of cultural products is multidimensional and it does not strictly reside at the language level known by the public or by just part of it. Our analysis shows that the success of India’s popular culture is based on the perception of Romanian audiences of them as a cultural “mix” between the “local” (that is, Indian) elements and the appeal at a set of “global” (universal) values. More precisely, in the case of Romanian audiences for India’s cultural products (TV series) there was a validation of theories regarding the cultural hybrid motivations involved in media consumption, theories about the importance of cultural proximity in the consumption of popular culture’s products and theories emphasizing globalism and of these cultural products, making them desirable and wanted world-wide.
THE BENGALI LANGUAGE, FROM INDIA TO ROMANIA
Authors: MUŞAT-COMAN Carmen
Published: May 2023

This article aims to bring to light a brief history of the study of the Bengali language in Romania, useful to those who focus on the presence of Indian languages in our country. At the same time, it presents the works translated from Bengali, mainly from Rabindranath Tagore, and the work of the teacher, translator, writer, exegete of Eminescu’s work, Amita Bhose.
From the Editors
Authors: Balci Tamer , Miller Christopher
Published: May 2023

We embarked on a journey nearly eight years ago in fall 2015 at a time predatory journals were slowly littering the academic landscape. Between the predatory journals publishing nearly anything for which authors were willing to pay their hefty publication fees and conditional open-access journals charging exorbitant fees to authors to make an article open-access, relatively fewer journals follow a fully open-access and no-fee policy. Because of this rare quality, DOAJ (Directory of Open Access Journals) listed NETSOL in its coveted Diamond Journals list.
Pengaruh Variasi Bentuk Adsorben Karbon Aktif dan Scale-up Kolom Terhadap Kinerja Adsorpsi CO2 Dalam Biogas
Authors: Suprianti Yanti , Pangestu Yoga Rahmat , Iriani Purwadi
Published: May 2023

Biogas as a renewable energy source is now starting to be considered as an alternative energy to replace BBM and CNG. Biogas from cow dung generally has a concentration of 50-70% CH4 as a substance that can be used as fuel, accompanied by 25-50% CO2, 0.3-3% N2, 1-5% H2, and H2S. The presence of accompanying substances, especially CO2, which has no calorific value (cannot be burned), can reduce the overall calorific value of biogas. One way to separate the CO2 gas is by adsorption. However, at a small column capacity, the adsorbent is often saturated quickly after being operated for a certain time. One way to get around this is to make the adsorbent into a more compact form, such as pellets. By combining granular and pellet activated carbon, this study wanted to identify the effect of variations to produce the best biogas composition and compare its performance when scaled up. The results showed that mixture A (70% granular activated carbon and 30% pellet) produced the best biogas, namely 83.1% in the initial column and 89.3% in the scale up column, with CO2 impurities removed and a small amount of other gases. The absorption performance in the form of adsorption effectiveness showed that each variation showed 100% effectiveness. The breakthrough curve shows that mixture C (30% granular activated carbon and 70% pellet) gave the highest resistance for 7 minutes on the initial column and 10 minutes on the scale up column. The volume of biogas that was adsorbed, the volume of biogas/column height, and the total amount of remove solute were best indicated by mixture A with 72 Liters, 180 Liters/m, and 8,208 Liters in the initial column, and 159 Liters, 212 Liters/m, respectively. and 21,942 Liters in the scale up column. Scale up has a significant impact on the performance of mixed C adsorbent with an increase in the volume of biogas that is adsorbed by 2.75x, the volume/height of the column increases by 1.47x, and the total of remove solute by 3.29x.

Keywords: adsorption, adsorbent, granular activated carbon, pellet, scale up
Analisis Fatigue Failure Pada Shaft Propeller Sebagai Instrumen Utama Penggerak Kapal
Authors: Al Adaby Irhami , Putri Lintang Larasati Adi , . Sarmilah , Dhiaulhaq Syafrie Muliarastu , Amalia Yasmina
Published: May 2023

Kegagalan struktur kapal laut menunjukkan bahwa persentase kegagalan yang signifikan disebabkan oleh desain yang tidak memadai karena kurangnya pertimbangan operasional, evaluasi elemen struktur yang tidak lengkap, dan metode perhitungan yang salah. Maka dari itu dilakukan analisa kelelahan pada shaft guna meminimalisir kecelakaan mengingat shaft bekerja sepanjang berjalannya kapal. Bahan yang digunakan dalam analisa adalah baja tahan karat austenitik atau baja kromium-nikel dengan kandungan nikel diatas 8%. Pengamatan dilaksanakan melalui metode pendekatan kepustakaan terhadap berbagai literatur terkait Analisis Fatigue Failure pada Shaft Propeller sebagai Instrumen Utama Penggerak Kapal. Getaran aksial dari sistem propulsi dapat menyebabkan getaran paksa. Kerusakan akibat getaran torsional dan aksial paling sering menyebabkan gurat, deformasi, dan patah. Hal terburuk yang akan terjadi dalam proses kegagalan shaft adalah fracture akibat pembebanan secara kontinyu dan diikuti dengan kemunculan crack pada permukaan shaft dan akhirnya shaft tidak dapat menahan tegangan yang dialami hingga mengalami fracture menjadi dua bagian atau lebih. Korosi pada stainless steel khususnya pada instrumen penggerak kapal juga memungkinkan untuk terjadi stress corrosion cracking.Untuk mengurangi efek korosi pada fatigue failure pada sebuah shaft, maka dapat dilakukan perlindungan katodik atau coating sebagai usaha memperlambat laju korosi yang terjadi.