bluuebunny/crossref_metadata_2025 huggingface dataset:
Numerical Study of Laminar Fluid Flow Around Two Heated Wall-Mounted Perforated Cubes in Tandem Arrangement
Authors: Rostane Brahim , Abboudi Said
Published: March 2022

In this study, the forced convection of a stationary laminar flow over two heated wall-mounted perforated cubes are presented. These two cubes are placed in a tandem arrangement on a flat plate. The equations of continuity, momentum and energy are solved using the finite volume method based on the Rhie and Chow method for velocity-pressure coupling. The influence of the perforation volume of the cubes is studied and compared with the case of obstacles without holes for a constant heat flux subjected to the solid part. The results of mean Nusselt number and drag coefficients are presented at the levels of the two obstacles and the plane plate for different Reynolds numbers and different distances between them. The results showed that the insertion of holes in the cubes improves heat transfer from the diameter D/H=0.62, and this transfer rises with increasing diameter of the perforation of the cubes. The results showed also a decrease in the drag coefficient for the first obstacle with rising volume of the perforation.
Thermal Performance of Spiral Flat Plate Solar Water Collector
Authors: Jawad Sarah Abbas , Rashid Farhan Lafta , Ridha Zeina Ali Abdul
Published: March 2022

Water stream flow is the major factor that affects the performance of a spiral solar water collector, it can be maximize the collector performance by decreasing the water stream flow velocity. The water stream flow was in two spiral tube arrangements of length 15 m, diameter 0.012 m, and number of coils (11). The inner surface of the solar collector was coated with matte black paint with a mixture of nanomaterial (thermal dye with 5% TiN). The experimental rig placed in Babylon - Iraq, at longitude (44.4 E) and latitude (32.4 N) in the best experimental conditions for the province during the month's (2,3,4,5). Also, a simulation program was made to extract the results in the case of a single flow, where the geometry was drawn in the Solid Work program and then entered into the ANSYS program, where the same practical cases were applied. The experimental results were compared with the numerical results which gave a good agreement with an error percent of 11% and 8.8% in the closed and opened system, respectively. The experiment included two parts, the first part: the flow of water in four different levels at case of the closed system (1, 1.5, and 2) L/min. The second part: the flow of water was at the same levels but at case of open system. The results showed that a decrease in the mass flow rate leads to increase in exit temperature and thus increase in the temperature difference between (inlet and outlet). The maximum temperature difference in the closed system was 25.2℃ for a water flow rate of 1 L/min. The maximum temperature difference in the open system was 12.3℃ for the water flow rate of 1 L/min.
Bonding Performance and Thermomechanical Coupling Analysis of Iron Ore Tailings Reinforced Concrete
Authors: Bai Yuhan , Sun Jianheng , Zhang Ruolan
Published: March 2022

After long-term use at high temperatures, the iron ore tailings (IOT) reinforced concrete will suffer from problems like carbonization, corrosion, and durability decline. It is highly practical to analyze the bonding performance and thermomechanical coupling mechanism of IOT reinforced concrete. The relevant literature rarely considers the influence of temperature over the bonding performance of samples, or prepares samples from IOT concrete. There are very limited results on the similarity of the temperature field and mechanical response of reinforced concrete under high temperatures. To solve the problem, this paper constructs a bond slip curve model for the IOT-reinforced concrete interface, and provides a way to plot the mean bond slip curve, before computing the bond stress distribution, as well as local bond stress-relative slip distribution. Next, the authors summarized the thermal parameters of the IOT concrete material, and the high-temperature relationship between thermal stress and thermal strain. Finally, sixteen central pull-out tests were carried out on central pull-out samples by applying strain gages into rebar slots. In this way, the authors obtained the results on the bonding performance and thermomechanical coupling analysis of IOT reinforced concrete.
Three-Dimensional Simulation of Decaying Turbulent Swirling Flow Using Different Turbulence Models
Authors: El-Behery Samy M. , Badawy Gamal H. , Mahfouz Fathi M.
Published: March 2022

This paper presents a numerical study of the turbulent swirling flow in a horizontal tangential inlet tube. The commercial CFD code ANSYS FLUENT 15 was used for solving the set of governing equations using different turbulence models. Eight turbulence models are tested which are, standard k–ε, realizable k–ε, RNG k–ε, SST k–ω, Non-Linear k–ε, v2-f, RSM (Quadratic Pressure-Strain Model), and RSM (Stress-Omega Model). All these turbulence models are available directly in the ANSYS FLUENT except the non-linear k–ε which was implemented in the solver using User Defined Functions (UDF). The numerical predictions are compared with experimental measurements from literature for tangential, axial velocity profiles and Reynolds stresses profiles within the tested tube. The results indicated that the axial velocity is predicted fairly well by the standard k–ε model while the tangential velocity is well predicted by RSM. On the other hand, v2-f model predicts the Reynolds stresses better than the other tested models. The statistical analysis of turbulence model performance showed that, the RSM (Quadratic Pressure-Strain) model gives the best agreement with all data of experiments followed by non-linear k–ε and standard k–ε turbulence models.
Numerical Study of the Temperature Effects on Heat Transfer Coefficient in Mini-Channel Pin-Fin Heat Sink
Authors: Bessanane Nabil , Si-Ameur Mohamed , Rebay Mourad
Published: March 2022

Pin-fins are frequently used to increase the heat transfer surface and promote turbulent motion, which improves the devices cooling process by enhancing heat dissipation, as in hydrogen fuel cells applications. The application has burst out this last decade and became vital in several industrial devices. The present study is a numerical investigation of flow and heat transfer in rectangular mini-channels (RMC) and pin-fin heatsinks (PFHS). The pin-fins have a diamond shape arranged in segregated disposition (corrugated channel). In order to adequately calculate the heat transfer coefficient within this complex thermal system; several parameters, such as mass flow rate, geometry dimensions, heat flux and reference temperature are extensively examined. The importance in way the reference temperature was calculated was highlighted. A correct estimation of the heat transfer coefficient led to a better optimisation of the cooling process performances. The aim of this study was to elaborate a technique to correctly estimate the temperature difference between the cooler fluid and the heat sink wall, leading to a better approach for heat transfer coefficient estimation. For this purpose, an approach with variable reference temperature (VRT) has been adopted in the calculation of the wall-fluid temperature difference. Flow field and heat transfer are analysed qualitatively (visualisations of sensible zones) and quantitatively (profiles of heat transfer coefficient, heat flux, wall and fluid temperatures...). The numerical procedure has been validated by experimental measurements. The results showed that the proposed approach to calculate the reference temperature leads to a better presentation of the heat transfer coefficient. In addition, new fit function was involved, in particular the variation of the averaged heat transfer coefficient against Reynolds number.
Heat Transfer Analysis of Different Coolant in the Waist Tubes of a Radiator and Performance Prediction Based on Artificial Neural Network
Authors: Liu Yi , Ma Zongpeng , Huang Ying
Published: March 2022

In this study, water, 0.05 Al2O3/water and 0.05 CuO/water nanofluids as a coolant in the waist tubes of a radiator are investigated numerically to evaluate their thermal and flow performance. Results are presented in terms of temperature distribution, heat transfer coefficient for different states. The results indicate that coolant has a significant impact on the heat transfer performance of the radiator, nanofluids increase the heat transfer coefficient. In addition, artificial neural network (ANN) was proposed for temperature difference between inlet and outlet of coolant prediction, ANN shows an extremely high prediction accuracy. The present study can help to understand the heat and flow behaviour of nanofluids in the waist tube.
On William Hasker’s Theodicy, the Doctrine of Continuous Creation and the Nature of Morality
Authors: Łukasiewicz Dariusz
Published: March 2022

In the article, I present the main assumptions of the natural-order theodicy and the free-will theodicy defended by William Hasker. Next, I pose the question of whether Hasker’s theodicies are compatible with the Christian doctrine of continuous creation accepted by Hasker himself. I consider several different ways of how the doctrine of continuous creation can be understood and the difficulties associated with them. Finally, I propose a modified conception of continuous creation and I claim that it is consistent with the main assumptions of William Hasker’s theodicies.
An Actual-Sequence Theology
Authors: Fischer John Martin
Published: March 2022

In this paper I develop a sketch of an overall theology that dispenses with “alternative-possibilities” freedom in favor of “actual-sequence” freedom. I hold that acting freely does not require freedom to do otherwise, and that acting freely is the freedom component of moral responsibility. Employing this analytical apparatus, I show how we can offer various important elements of a theology that employs only the notion of acting freely. I distinguish my approach from the important development of Open Theism by William Hasker. My view about God’s foreknowledge is in-between comprehensive foreknowledge and no foreknowledge (Open Theism).
The Openness of God: Hasker on Eternity and Free Will
Authors: Stump Eleonore
Published: March 2022

The understanding of God’s mode of existence as eternal makes a significant difference to a variety of issues in contemporary philosophy of religion, including, for instance, the apparent incompatibility of divine omniscience with human freedom. But the concept has come under attack in current philosophical discussion as inefficacious to solve the philosophical puzzles for which it seems so promising. Although Boethius in the early 6th century thought that the concept could resolve the apparent incompatibility between divine foreknowledge and human free will, some contemporary philosophers, such as William Hasker, have argued that whatever help the concept of eternity may give with that puzzle is more than vitiated by the religiously pernicious implications of the concept for notions of God’s providence and action in time. In this paper, I will examine and respond to Hasker’s arguments against the doctrine of God’s eternity.
Covid-19 Pandemi Sürecinde Finansal Yatırım Alışkanlıkları ve Davranışsal Finans Eğilimleri
Authors: Köroğlu Çağrı , Gökbulut Kazan Hatice , Temel Eren
Published: March 2022

Bireysel yatırımcıları rasyonel karar almaktan alıkoyan aşırı güven, pişmanlıktan kaçınma gibi eğilimler, özellikle sosyal ve psikolojik etkileri yoğun olan, Covid-19 gibi kriz, istikrarsızlık ve belirsizlik dönemlerinde yatırımcıların yatırım kararlarında etkili olabilmektedir.
Bu araştırmanın amacı, bireysel yatırımcıların Covid-19 pandemisi dönemindeki yatırım davranışsal finans eğilimlerini sosyo-demografik özellikleri ve bazı yatırım alışkanlıkları bağlamında incelemektir. Bu amaç doğrultusunda 384 bireysel yatırımcının yanıtlarına online anket yöntemiyle erişilmiştir.
Analiz sonuçları, yatırımcıların pandemi döneminde belirsizliklerden ve risklerden daha fazla kaçındığı, düşük riskli ve nispeten daha az gelir sağlayan, fakat daha güvenilir görülen yatırım seçeneklerini tercih ettiklerini, çoğunlukla sermayeyi koruma amacında olduklarını göstermiştir. Yatırımcıların genel olarak risk değerlendirme, risk ve belirsizlikten kaçınma, kayıptan kaçınma gibi davranışsal finans eğilimleri öne çıkmıştır. Kadınlar, 56 yaş ve üzerinde bulunanlar, emekliler, ailesiyle beraber yaşayanlar en yüksek riskten ve belirsizlikten kaçınma eğilimi gösteren gruplar olmuşlardır. Ekonomi ve finansla ilgili gelişmeleri, yatırım takibini sıklıkla yapanların, kendisini finansal okuryazar olarak görenlerin ise riskten ve belirsizlikten kaçınma eğilimi düşük olmuştur.
Anahtar Kelimeler: Covid-19, Finansal Yatırım, Davranışsal Finans
JEL Sınıflandırması: D14, G41, G50
Küreselleşme ve Finansal Gelişmenin Gelir Eşitsizliği Üzerindeki Etkisi: Yükselen Piyasa Ekonomilerinden Yeni Kanıtlar
Authors: Pala Fahrettin
Published: March 2022

Çalışmanın amacı, yükselen bir ekonomi için birleşik bir çerçevede küreselleşme ve finansal gelişmenin gelir eşitsizliği üzerindeki birleşik etkilerini ampirik olarak incelemektir. Küreselleşme ve finansal gelişmenin gelir eşitsizliği üzerindeki etkisini incelemek için panel veri analizi yöntemi kullanılmıştır. İlk olarak birimler arasında korelasyonun varlığı, Breusch Pegan (2008) LM testi ve Pesaran, Ullah ve Yamagata (2008) NLM testi ile incelenmiştir. Değişkenlerin durağanlıkları CADF (Crosssectional Augmented Dickey Fuller) Panel Birim Kök testi ile incelenmiştir. Daha sonra Swamy (S) testi ile homojenlik testi uygulanmıştır. Değişkenler arasındaki uzun dönem ilişkisi Gengenbach, Urbain ve Westerlund Panel Eşbütünleşme testi ile analiz edilmiştir. Değişkenler arasındaki nedensellik Dumitrescu-Hurlin nedensellik testi ile katsayıları ise panel regresyon analizi ile incelenmiştir. Panel eşbütünleşme testi sonucunda değişkenler arasında uzun dönemli herhangi bir ilişki tespit edilememiştir. Kısa vadeli ilişkide ise; finansal gelişme ve enflasyondan gelir eşitsizliğine doğru çift yönlü nedensellik ilişkisi olduğu, küreselleşmeden gelir eşitsizliğine doğruda tek yönlü nedensellik ilişkisi olduğu sonucuna varılmıştır. Panel regresyon analiz sonuçlarına göre, küreselleşme ve finansal gelişmenin gelir eşitsizliği üzerindeki etkisinin istatistiki olarak anlamlı ve negatif, enflasyonun ise istatistiki olarak anlamlı ve pozitif yönde etkili olduğu sonucuna varılmıştır.
Anahtar Kelimeler: Küreselleşme, Finansal Gelişme, Gelir Eşitsizliği, Yükselen Piyasa Ekonomisi, Panel Veri Analizi.
JEL Sınıflandırması: C33, D31, F02, G10.
Antropolog wobec innych i wobec siebie. Niektóre problemy etyczne uprawiania antropologii
Authors: Nowicka Ewa
Published: March 2022

Artykuł skupia się na analizie doświadczeń terenowych autorki, koncentrując uwagę na komplikacjach emocjonalnych i aksjologicznych wynikających z długotrwałej współpracy z badanymi, nawiązywaniem więzi osobistych i rodzącym się zaangażowaniem badacza w sprawy badanego społeczeństwa. Autorka sięga do antropologicznej refleksji podejmującej tematy etyczne oraz twórczości Marii Ossowskiej, znajdując w niej fundamentalne inspiracje.
Beyond Case Studies: Expanding the Constructionist Framework for Social Problems Research
Authors: Best Joel
Published: March 2022

Most constructionist analyses of social problems are case studies; these focus attention on the particulars of the case at hand. Analysts have devoted less attention to the ways cases can be connected. This paper presents a typology of such connections, based on five elements: the problem, the frame, the claims-makers, place, and time. The typology identifies ways each of these elements can serve as a basis for connecting different campaigns to construct social problems.
The Inclusion of Women’s Boxing in the Olympic Games: A Qualitative Content Analysis of Gender and Power in Boxing
Authors: Tjønndal Anne
Published: March 2022

This article utilizes Foucault’s theoretical perspective of modern power and constructivist perspectives of gender to examine relations of power and gender in boxing. The aim of this paper is to explore how and in what ways constructions of gender are linked to relations of power in international amateur boxing. Further, what implications the interplay between gender and power might have for female boxers. In order to identify relations of power between men and women in boxing, a series of online texts depicting the process of including women’s boxing in the Olympic Games (2009-2012) is analyzed and discussed. To investigate what implications these gendered power relations might have for female boxers today, AIBA’s recent provisional suspension of the Norwegian Boxing Federation is examined. A content analysis strategy was chosen as my analytical approach (Titscher et al. 2000), where the data material consisted of 67 online texts of which 23 were analyzed in-depth. The analysis of the material illustrates how an attempt to implement feminine outfits for female boxers in the Olympic Games was used as a gender-marking strategy in international boxing. This is further related to power by arguing that AIBA’s need to distinguish female boxers from male boxers was an attempt to make the women adhere to traditional norms of femininity (Hovden 2000; van Ingen and Kovacs 2012). Furthermore, the analysis of the material indicates that men’s boxing is valued as superior to women’s boxing and that these gendered power relations in boxing manifest themselves through their effects on women’s boxing.
Tadeusz Dzierżykray-Rogalski – w siedemdziesiątą rocznicę urodzin
Authors: Drozdowski Zbigniew
Published: March 2022

The author presents the scientific output of professor Tadeusz Dzierżykray-Rogalski on his seventieth birth anniversary. The celebrator of the jubilee was for many years a chairman of the Polish Anthropological Society, the editor of the Polish Anthropological Review, a worthy scientist of the Polish Anthropology and organizer of the scientific life.
Charakterystyka serologiczna populacji wsi Wielkie Drogi w pobliżu Krakowa
Authors: Swornowski Piotr
Published: March 2022

Serological characteristic of the population of Wielkie Drogi village near Cracow was made on the material of 83 persons of both sexes. The ABO, Rh(D) and Kell systems were examined. The frequencies of genes and phenotypes were evalusted and then the genetic intervals were computed for the investigated group in relation to other populations from Poland, Ukraine and Moravia.
Gęstość listewek skórnych w polach międzypalcowych dłoni
Authors: Buchwald Wiesław
Published: March 2022

The density of dermal ridges in the interdigital fields of palm was examined on the sample of 200 adult men and 200 adult women. Bilateral and sexual differences were taken into consideration. On stating 3 cathegories of the density of dermal ridges for every sex, the correlation between the density and the total ridge count in the subdigital area of palm was examined.
Zróżnicowanie umieralności mężczyzn i kobiet w wieku produkcyjnym (20-64) w zależności od wykształcenia i stanu cywilnego
Authors: Brajczewski Czesław , Rogucka Elżbieta
Published: March 2022

The data were compiled during the December 1988. Census of Population. It revealed the existence of a clear cut social gradient in mortality. The further down the scale of educational status - the higher the rate of mortality at all ages between 20-64 years. Marital status of the deceased also influenced the level of mortality.
Masa urodzeniowa noworodków z różnych środowisk
Authors: Wojtowicz Ewa
Published: March 2022

The birth weight of 1,210 newborns born in 1993-1994 from ecologically „clean” (Kościerzyna) and ecologically risky regions (Puck) was analyzed. Birth weight is about 70 g lower in the risky than in the „clean” region.
Czy istnieje „profesjonalny” i „nieprofesjonalny” wymiar biografii? Rozważania na kanwie „Opowieści autobiograficznej” Michała Głowińskiego. Refleksja rozpisana na dwa głosy
Authors: Modrzejewska-Świgulska Monika , Bogusławski Marcin Maria
Published: March 2022

In this chapter (containing an analysis of the autobiographical novel “Kręgi obcości” (“Circles of Strangeness”) by Michał Głowiński) the authors put forward and defend a thesis that setting private biography against career biography should be considered an artificial divide. This interpretation has been done by two relatively autonomous voices – one having its roots in philosophy and the other coming from pedagogical ground. The philosophical narration is constructed within socio-hermeneutical ontology framework. Marcin Bogusławski adduces Jean-Paul Sartre’s classification in particular. His reflection is twopart. In the first, ontological one, he reconstructs the most vital threads appearing in Głowiński’s novel, whereas in the ontological part he draws a whole array of concepts (human-reality, beingin-the-situation, project, comprehension, history and body) connected with the functioning and the comprehension of ontological domain. While Bogusławski focuses on a philosophical perspective it is Monika Modrzejewska-Świgulska who refers to the social pedagogy and creativity pedagogy concepts. Moreover, she also refers to the basic assumptions of narrative psychology to take a stance on issues that are her main interest, i.e. she seeks an answer to the question of what biography is and how it can be understood.
Políticas públicas, familias y reunificación en el contexto de la migración venezolana al Perú
Authors: Huaita Alegre Marcela
Published: March 2022

Este capítulo caracteriza desde una perspectiva de género a las familias de los y las jóvenes venezolanas que participaron del estudio, y su posible necesidad de reunificación (parejas, hijos, hijas, madres, padres, etc.). Para ello, la autora revisa la definición de familia como un fenómeno dinámico cuyas formas de organización son diversas y se encuentran al amparo del marco político normativo. De acuerdo con la Constitución peruana de 1993, el Estado protege a la familia y, por tanto, las políticas y el marco normativo deben responder a las necesidades de los diversos tipos de familia. De esta misma forma lo comprende el Tribunal Constitucional (TC) peruano, el mismo que en sendas resoluciones reconoce que los cambios sociales y jurídicos han generado que la estructura familiar tradicional (nuclear) deje de ser el statu quo y, por tanto, que todos los distintos tipos de estructuras familiares que coexisten en la sociedad merecen la protección estatal. Sin embargo, es necesario contrastar los parámetros establecidos en la normatividad relativa a la «reunificación familiar», enmarcada en un sentido restringido de la familia, es decir, aquella basada en un vínculo matrimonial, filiación y convivencia (uniones de hecho estrictas), para ver cuánto concuerda con la composición familiar de la población migrante y refugiada. Teniendo esto presente el objetivo final del capítulo es identificar posibles desajustes en la normatividad, que sirvan como oportunidad de cuestionar sus márgenes de protección, a la luz de una interpretación más amplia y atendiendo a lo establecido por el TC.
​Effect of Bael (Aegle marmelos L.) Pulp Residue on Quality and Storability of Chicken Meatballs from Spent Layers
Authors: Dhara Dhananjoy , Biswas Subhasish , Biswas Olipriya
Published: March 2022

Background: Bael contains rich health promoting bioactive compounds such as flavonoids, polyphenols, carotenes, vitamins and organic acid. It has recently gained attention as an alternative to chemical additives. Despite having high nutritional value, the commercial industry does not emphasize it to make value added products and it is still being used only by the unorganized sector. Methods: Bael pulp residue (BPR) powder was incorporated into chicken meatballs from spent layers at the levels of 1% 1.5% and 2% and stored under refrigerated temperature at 4±1oC for 15 days to see the effect of different parameters such as physico-chemical parameters, antimicrobial properties and sensory attributes. Result: Results of this study showed that moisture, crude protein and crude fat percentage decreased, whereas crude fibre increased gradually (p less than 0.05) with the increase concentration of BPR powder in meatballs. Hardness and chewiness decreased significantly (p less than 0.05), whereas gumminess increased significantly (p less than 0.05) with the increase level of BPR powder in meatballs. TBA value decreased significantly (p less than 0.05), whereas DPPH radical scavenging activity increased significantly (p less than 0.05) with the increase concentration of BPR powder. Total plate count and yeast and mould count also decreased significantly (p less than 0.05) compare to control. Sensory parameters such as appearance, flavour and overall increased significantly (p less than 0.05) by inclusion of BPR powder in meatballs. It has also been observed that proximate, texture profile, sensory parameters of treated products were higher the value than control, whereas microbiological parameters and TBA value were lower the value than control with the increase of storage period from 0 to 15 days at 4±1oC.
Nutritional Evaluation of Hydroponic Maize (Zea mays) Grain Sprouts as a Newer Green Feed Resource in Lambs
Authors: Chethan K.P. , Gowda N.K.S. , Prabhu T.M. , Krishnamoorthy P. , Dey Debaprio Kumar , Giridhar K. , Anandan S.
Published: March 2022

Background: Maize (Zea mays) grain sprouts (MGS) can be a potential source of green fodder for ruminants, especially when there is scarcity of land and water. Nutritional value of MGS grown with hydroponic technique was assessed for nutrient utilization, blood biochemical profile, immunity and growth performance in lambs. Methods: The MGS were produced in a polyhouse and harvested on 10th day and subjected to rumen in vitro incubation for gas production (RIVIGP) test to predict metabolisable energy (ME) value. The feeding cum growth trial was conducted for 120 days. Eighteen healthy male lambs of 3-4 months age and comparable body weight were randomly allotted in a complete randomized design to three dietary groups of six in each. The control (T1) group lambs were fed conventional green fodder (CGF), finger millet straw (FMS) and compounded feed mixture (CFM) at 50:10:40 ratio on DM basis, In treatment group two (T2), proportion of CGF and CFM was reduced by 50% and substituted with 45% MGS on DM basis (CGF, FMS, CFM and MGS on total DM basis was in 25:10:20:45 ratio, respectively). In treatment group three (T3), CGF was completely replaced with MGS (80%) and CFM was reduced to 25% of control (CGF, FMS, CFM and MGS on total DM basis was in 0:10:10:80 ratio, respectively). Result: Results indicated that MGS has ME (MJ/kg DM) of 9.70. The average DM intake (g/d/lamb) in T1, T2 and T3 groups was 764, 581 and 398, respectively. The average daily gain (ADG, g) in T1, T2 and T3 groups was 77.3, 48.5 and 20.9, respectively. There was a significant (P less than 0.05) decrease in DMI and ADG with reduced feed efficiency in lambs fed MGS. However, the per cent digestibility of nutrients, blood biochemical profile, immunity and serum minerals in lambs did not differ among the groups. It is concluded that replacement of compounded feed mixture or conventional green fodder with MGS will limit the dry matter intake, net nutrient availability and negatively affect the growth performance in lambs.
​Efficacy of Bioagents against Sclerotinia Rot of Chickpea Incited by Sclerotinia sclerotiorum
Authors: Sheshma M.K. , Kumhar D.R. , Varma Sunaina , Devi Dhanni
Published: March 2022

Background: Sclerotinia sclerotiorum (Lib.) de Barry is a soil-borne plant pathogen, capable of infecting more than 500 host plants worldwide. It is a major pathogen that plays a crucial role in reducing the yield of economically important crops. Sclerotinia rot also known as Stem rot or white mold, caused by Sclerotinia sclerotiorum is a serious disease of chickpea. Methods: The antagonistic potential of four bioagents i.e. Trichoderma harzianum (Th-BKN), Trichoderma viride (Tv-BKN), Pseudomonas fluorescens (Pf-BKN) and Bacillus subtilis (Bs- BKN) were isolated from chickpea rhizospheric soil. The fungal bioagents were tested for their antagonistic potential against the pathogen in vitro by modified dual culture technique on potato dextrose agar (PDA) medium. While bacterial antagonists tested for their antagonistic potential against the pathogen in vitro by paper disc inoculation technique on Nutrient Agar (NA) and Pseudomonas Agar Fluorescens (PAF) media. Each treatment was replicated four times, incubated at 23±10°C, data on the antagonistic activity of different bioagents were recorded and percent inhibition was calculated for each antagonist. Result: The fungal antagonists T. harzianum (Th-BKN) resulted in maximum growth inhibition of the pathogen (70.48%) and bacterial antagonists, Pseudomonas fluorescens (Pf-BKN) (37.56%) was more effective than the Bacillus subtilis (Bs- BKN).
Enhancing students’ understanding of Arabic syntax on high school students in Indonesia
Authors: Safrullah Dendi Yuda , Sari Novita Sekar Arum , Julia J , Ali Enjang Yusup , Widiawati Nani
Published: March 2022

Understanding the concept of Arabic syntax is a learning problem faced by the students. For that reason, this study aims to improve students' understanding of Arabic syntax. This study employed action research design by presenting six critical-reflective steps in efforts to improve students' understanding of Arabic syntax at a junior high school in West Java, Indonesia. Data were collected using interviews, observations, surveys, oral and written tests. The findings revealed that the understanding of Arabic syntax for first-year high school students regarding noun, verb, particle and sentence material improved well. This study confirms that through a series of critical-reflective steps, the students' understanding of the concept of Arabic syntax can be improved.

 

Keywords: Arabic Syntax, Arabic Learning, Non-native Speaker, Foreign Language
Academic procrastination and cyberloafing behavior: A case study of students in Indonesia
Authors: Margaretha Meily , Saragih Susanti , Mariana Ana , Simatupang Kristin Monica
Published: March 2022

Internet is a tool widely used by students to advance online and offline learning, especially during the Coronavirus disease-19 (COVID-19) pandemic. However, overdependence on internet use in the learning process may negatively affect the academic progress of students. Some students delay submitting academic assignments without tangible reasons. Students often use the internet for activities unrelated to academics. This study aimed to investigate the relationship between cyberloafing behavior and academic procrastination of Indonesian students during Covid-19 pandemic. The effect of self-regulated learning in explaining the relationship between cyberloafing behavior and academic procrastination was also discussed. This study used a descriptive study. The data collection technique was the survey method with the help of questionnaires. Sample size for this research was 732 students drawn from both the state and private universities in Indonesia. The results of the study showed that cyberloafing significantly affects students’ academic procrastination. Moreover, the relationship between these two variables was moderated by self-regulated learning. This research is expected to provide input to all parties involved in the student learning process and help develop information technology integration in the learning process.

 

Keywords: academic, internet, cyberloafing, procrastination, regulation, technology
Laboratory work assessment with QR code lab manual for engineering science course among Polytechnic students
Authors: Normawati Abdul Rahman , Hisyamsani Idris , Mohd Matore Mohd Effendi Ewan
Published: March 2022

The development of a QR code as a barcode label contains information about the item to which it is attached. However, information on QR code development in engineering science laboratories is still limited. The aim of this research is to design the QR code lab manual for laboratory work in polytechnics engineering science course. In addition, the students’ views in construct of easiness of use, usefulness and enjoyment using the QR code are also investigated. The QR code lab manual involved seven steps of development under the engagement theory in teaching and learning. Learning materials are embedded into the QR code within 1 sheet of an A4 size card. A total of 64 students were chosen using purposive sampling. Data from survey questionnaires revealed that the respondents have a high level for all the constructs. It has been suggested that students perceived the QR code lab manual developed as a useful tool that is easier to use in the future. This QR code lab manual allows educators to connect the traditional teaching style and provide students with a more genuine and unforgettable educational experiences. Future studies should consider a different experiment with the new design for QR codes with additional constructs and a variety of perspectives.             

 

Keywords: QR code, laboratory work, assessment, lab manual, polytechnic.
Pedagogical foundations of teaching ethnocultural units in the education system
Authors: Alua Nazarbekova , Gulnara Abdrahman , Gulnur Issabekova , Tursynay Abdykadyrova , Raigul Rakhmetova
Published: March 2022

In recent years, there has been an increased interest of scientists and practicing teachers in the ideological origins of ethnic education. The purpose of the study is to create a theoretically grounded and experimentally tested pedagogical system of ethnocultural adaptation of students in the process of teaching the Kazakh language. A survey of different contingents of students studying in different cities was carried out. Subsequently, an experimental training of the pedagogical system of ethnocultural adaptation was carried out. The participants included 224 students. The collected data were analyzed using percentages and content analysis. The results of the study showed that the pedagogical system of ethnocultural adaptation is based on the principles of cultural conformity, anthropocentrism, integration, and differentiation. Also, at the ascertaining stage of the experiment, there is no statistically significant difference between the students from the CG and the EG.

 

Keywords: Education system; ethnocultural; foundations of teaching; pedagogical;  units.
Developing the Jordanian schools' administrations within the concept of the mutual psychological contract between school principals and teachers
Authors: Ababneh Saleh Ahmad Amin
Published: March 2022

This study explored the development of the Jordanian schools' administrations within the concept of the mutual psychological contract between school principals and teachers. The study employed the descriptive developmental approach. Two scales were developed, the scale of the school’s commitment to the psychological contract with teachers, which consisted of (30) items, and the scale of teachers’ commitment to the psychological contract with the school, which consisted of (22) items. The sample of the study consisted of (431) teachers and (117) principals at the end of the academic year 2020/2021. The results revealed that the degree of commitment among school principals to the psychological contract with teachers was average. The differences were statistically significant in favor of the teachers with long experience, and the differences were not significant for the rest of the variables. The results of the study also indicated that the degree of teachers’ commitment to the psychological contract with school principals was average. The differences were statistically significant in favor of school principals with short experiences. Mechanisms for developing school administration in Jordan were suggested, and several recommendations were made.

Keywords: psychological contract, school administration development, school principals, school teachers, education in Jordan.
Celebrate Birth: Experiencing Profound Joy on the Other Side of Fear: My Unexpected Journey Through Pregnancy and Childbirth
Authors: Leonard Elizabeth
Published: March 2022

The author shares her story of moving beyond fear of childbirth, preparing for the birth of her baby, and the profound experience of giving birth. She shares the details of her preparation and education from childbirth classes, and the support she received from her nurse (her angel) and her husband (her steadfast star). It is a story of overcoming fear, working intensely during labor, leaning on a chosen support team and savoring the joy of finally giving birth to her son.
Gambaran Kesehatan Gigi Mulut dan Jumlah Streptococcus Sp pada Anak Sindroma Down di Kecamatan Patrang dan Sumbersari Jember
Authors: Subiantoro Fairuz , Prihatiningrum Berlian , Probosari Niken
Published: March 2022

Down syndrome is a disorder that causes distinctive physical and mental disorders, causing a slower learning process than normal people. One of the consequences of these physical and mental limitations is the magnitude of dental and oral health problems. To check the state of oral hygiene, DMF-T and OHI-S examinations can be done. In addition, the presence of caries causes, such as Streptococcus sp can be a state of oral hygiene. This study aimed to examine the description of dental and oral health and the effect of the number of Streptococcus sp bacteria in saliva on the incidence of caries in children with Down syndrome at SLB Negeri Patrang, SLB C Taman Pendidikan and Asuhan (TPA) Sumbersari and SLB C Bintoro Regency. Jember. This study was a descriptive study with cross sectional design. This study was held at SLB Negeri Patrang, SLB C Bintoro, and SLB C TPA Sumbersari. This study showed there were differences to the caries incidence and dental hygiene of Down syndrome’s children at SLB Negeri Patrang, SLB C Bintoro, SLB C TPA Sumbersari. Besided it, there were significant differences between the DMF-T index and the colonies of Streptococcus sp, while there was no significant difference of oral hygiene down syndrome children in SLB Negeri Patrang, SLB C Bintoro, SLB C TPA Sumbersari. Briefly, this study showed that the number of Streptococcus sp colonies not frequently correlated to caries incidence and oral hygiene.
Prakiraan Usia Gigi Menggunakan Standar Blenkin (Modifikasi Metode Demirjian) pada Anak Penderita Down Syndrome
Authors: Apriyono Dwi Kartika
Published: March 2022

Age has an important role in the forensic identification process. Age estimation need to be done accurately in determining a person's age. The use of the Blenkin standard as a method of age estimation to the Javanese population produces accurate results. Chronological age estimation can be known through the dental age which is largely controlled by genetic factors. One of the genetic disorders that is associated as one of the causes of delayed development and eruption of teeth is Down Syndrome. The manifestation of Down syndrome in children's teeth is the delay in the timing and sequence of tooth eruption. The purpose of this study was to assess dental age estimates using the Blenkin standard (modified Demirjian method) in children with Down syndrome. This study is a cross-sectional study using children with Down Syndrome as research subjects, aged 10-16 years and willing to sign an informed consent for further panoramic x-rays. The results of the panoramic X-ray are then assessed using the Blenkin Standard for age estimation. The results showed that the dental age was different from the chronological age, which was 2.8 years for the sample of boys with Down Syndrome and 0.72 years for the sample of girls with Down Syndrome.
Laporan Kasus: Penatalaksanaan Gingivitis Gravidarum pada Ibu Hamil di RSGM Universitas Jenderal Soedirman
Authors: Satrio Rinawati , Pramudyanaswari Puspaningdyah
Published: March 2022

Gingivitis gravidarum is a pathological process that occurs during pregnancy on the supporting tissues of the teeth where there is gingival enlargement which causes discomfort due to increased estrogen and progesterone hormones. The etiology of gingival gravidarum originates from plaque in the oral cavity triggered by systemic factors such as hormones in pregnancy that cause inflammation and enlargement of the gingiva. The purpose of this case report is to find out about the management of gingivitis gravidarum that occurs in pregnant women. A 23-year-old female patient came with complaints of swelling of the anterior upper and lower gingival regions. These complaints have increased since entering the fourth week of pregnancy and spontaneous bleeding gums when brushing teeth. Intraoral examination revealed gingival swelling in the maxillary anterior region and mandibular interdental area extending to the gingival margin. Bleeding on probing showed positive results, while the O'leary score showed 28.28% and OHI-s showed 2.9 results. The treatment that will be carried out is USS scaling and patient education to always maintain oral hygiene. Gingivitis gravidarum often occurs in the area of the interdental gingival margin, which looks red and swollen. Periodontal treatment in pregnant women is more focused on controlling periodontal disease and eliminating the causative factors and treatments such as scaling can be carried out, while periodontal surgical treatment for pregnant women such as gingivectomy should be postponed until the delivery period is complete.
The first record of the peacock fly Callopistromyia annulipes Macquart, 1855 (Diptera: Ulidiidae) in Croatia revealed by social media
Authors:   University of Zagreb, Faculty of Science, Department of Biology, Rooseveltov trg 6, HR-10000 Zagreb, Croatia, Kasalo Niko , Topić Martina ,   University of Zagreb, Faculty of Science, Department of Biology, Rooseveltov trg 6, HR-10000 Zagreb, Croatia, Tarandek Anita ,   University of Zagreb, Faculty of Science, Department of Biology, Rooseveltov trg 6, HR-10000 Zagreb, Croatia
Published: March 2022

In Europe Callopistromyia annulipes Macquart, 1855 is an alien species. It was introduced from North America in 2007 and has spread to more than ten European countries. The spread of the species has been observed since 2007 and the trend isstill continuing, the species having recently been found in Croatia. Using social networks such as Facebook and iNaturalist, we can spot the spread of alien species to new areas, learn more about their ecology and speculate on the direction of potential expansion. Citizen science is an excellent tool for obtaining new knowledge, but as of today, its potentials are greatly underutilized.
La complicidad empresarial en crímenes internacionales a la luz del Estatuto de Roma (a propósito del Caso Lafarge)
Authors: Coteño Muñoz Alejandro
Published: March 2022

Al hilo de la reciente imputación por la justicia francesa de la multinacional Lafarge y tres de sus directivos por, entre otros delitos, complicidad en crímenes de guerra y contra la humanidad al haber negociado con DAESH, se estudia la complicidad en crímenes internacionales a la luz del Estatuto de Roma. Aunque no se reconoce la responsabilidad penal de las personas jurídicas ante la Corte Penal Internacional, mediante este análisis se pretende realizar una primera fundamentación de la complicidad de estas empresas al negociar, con el único objetivo de continuar su normal producción, con distintos grupos en cuyo seno se cometen estos crímenes internacionales ya que esta práctica resulta ser un lugar común en cualquier conflicto armado.
Effectiveness of Multicultural Problem-Based Learning Models in Improving Social Attitudes and Critical Thinking Skills of Elementary School Students in Thematic Instruction
Authors: Qondias Dimas , Lasmawan Wayan , Dantes Nyoman , Arnyana Ida Bagus Putu
Published: March 2022

This study aims to analyze the effectiveness of multicultural problem-based learning models to improve social attitudes and critical thinking skills of elementary school students in thematic learning. This study employs a quasi-experimental approach with a posttest-only control group design. There are 165 students in the sample of the study. The data collection method used is a questionnaire on social attitudes and an achievement test on critical thinking ability. The post-test data are analyzed using descriptive and inferential statistics. The analysis covers the mean score, standard deviation and variance while the inferential statistical analysis utilizes the MANOVA test. The results of the analysis show that the multicultural problem-based learning model is effective in improving students’ social attitudes and critical thinking skills. Therefore, this learning model is recommended as an innovative learning model.
Síndrome de Guillain Barré relacionados a infección por SARS – CoV 2 en Lima, Perú. Reporte de casos
Authors: Miraval-Márquez Fiorella Karina , Vera-Chaupijulca Sharon Mashiel , Sánchez Sanguinetti Martin Diego , Lazo-Velásquez Juan Carlos , Castillo Kohatsu Guillermo , Bujaico-Ascona María Elizabeth , Romero Ortiz Reynaldo , Huertas Sánchez Lourdes Milagros
Published: March 2022

La COVID -19 afecta predominantemente el sistema respiratorio, pero también se ha descrito compromiso extrapulmonar, incluido la afectación del sistema nervioso.  Se describen los casos de dos pacientes con infección por SARS –CoV-2 que desarrollaron el síndrome de Guillain Barré.
Microcirugía mínimamente invasiva para aneurisma de la arteria comunicante anterior: abordaje supraorbitario lateral más angiografía con fluoresceína intraoperatoria
Authors: Salazar Campos Cristian , Gaitán Cabellos Miguel
Published: March 2022

Los aneurismas de la arteria comunicante anterior son complejos y requieren de tratamiento endovascular o microquirúrgico según sus características. El uso de enfoques mínimamente invasivos en microcirugía continúa evolucionando. Presentamos el caso de un paciente de 34 años con un aneurisma cerebral no roto de AcoA de cuello ancho, con escala de Glasgow de 15 puntos. Se realizó un abordaje supraorbitario lateral más “clipaje” total del aneurisma usando angio fluoresceína intraoperatoria. Se logró el objetivo con seguridad y eficacia; al mismo tiempo se optimizó el tiempo quirúrgico y hospitalario, maximizando la comodidad del paciente, estética y reanudación a sus actividades tempranas.
Biomarcadores tomográficos en el edema macular diabético
Authors: Barriga-Salaverry Guillermo
Published: March 2022

El edema macular diabético (EMD) es la primera causa de disminución de la visión entre los pacientes diabéticos. Puede empezar en cualquiera de las etapas de la retinopatía diabética y estar asociada a comorbilidades que pueden afectar varios sistemas del organismo. Muchas veces el paciente diabético con edema macular necesita un manejo multidisciplinario por el que recibe atención inicial de especialistas no oftalmólogos. Existe evidencia que respalda que el diagnóstico precoz y el tratamiento oportuno del EMD puede minimizar la pérdida visual permanente. Los especialistas no oftalmólogos que atienden pacientes diabéticos pueden contribuir a detectar precozmente el EMD que pudiera tener su paciente para recibir la atención oftalmológica correspondiente. El propósito de esta revisión es proveer a la comunidad médica de información sobre la contribución de la tomografía de coherencia óptica en el diagnóstico del EMD y cómo reconocer los biomarcadores tomográficos que permitan pronosticar el resultado visual de su tratamiento.