bluuebunny/crossref_metadata_2025 huggingface dataset:
Lines of antagonism in the scientific community and the aggravating youth factor
Authors: Gusev A. B. , Yurevich M. A.
Published: September 2024

The work is devoted to the analysis of key attitudes within the scientific community, on which, as expected, the image of the scientific and technological future of Russia directly depends. It has been established that the civilizational self-identification of researchers largely does not coincide with the sentiments of the general public. A cautious and often skeptical attitude towards the mobilization of science, increased emigration sentiments among scientists, primarily young ones, allowed the authors to conclude that the country’s scientific community is in crisis, antagonistically divided by contradictions regarding basic value orientations and management issues. The unifying factor is the need for comfortable working conditions and the demand for science by the state and society.
It was quantitatively determined that only half of the researchers adhere to pro-state sentiments and could potentially be usefully involved in solving scientific and technical problems. The other half of the scientific community becomes at least a group of opponents who have doubts or are undecided regarding the scientific and technological course. The youth wing of science, as it turns out, is largely imbued with cosmopolitanism and therefore does not represent an anti-crisis force. Strengthening the mobilization readiness of the scientific community and resolving its internal conflicts is considered from the point of view of improving the quality of science management, including effective personnel policies.
Thermal protection technologies for solid propellant rocket engines
Authors: Mironov V. V. , Tolkach M. A. , Timarov A. G.
Published: September 2024

The article examines the thermal insulation characteristics of materials used in solid-fuel rocket engines manufactured in the United States, France, Italy, Japan, and other developed nations. The internal surfaces of combustion chambers in these rocket engines are subject to significant stress under thermo-mechanical loading conditions, necessitating specialized protection. The authors identify four categories of reinforced elastomeric materials that most effectively meet stringent requirements. Due to their adaptability, these materials may serve as versatile heat insulators and may be employed in a variety of high-temperature and corrosive surroundings.
The reasons for the low losses of the Don Cossacks in the wars of the Russian Empire
Authors: Matishov G. G. , Venkov A. V.
Published: September 2024

The article describes how in the XVIII–XIX centuries the Don Cossacks acquired the skills of conducting combat operations with minimal losses that were preserved until the beginning of the twentieth century. The number of wounded among the Don Cossack elite was calculated and the nature of the wounds themselves was clarified, the ratio of the minimum combat losses of Cossacks and losses of regular units of the Russian army, sometimes reaching a quarter or even half of the personnel, was obtained during the Swiss campaign of 1799, the Patriotic War of 1812 and the liberation campaign of 1813–1814, as well as during the First World War. It was established which layers of the Don Cossacks suffered the least losses. They turned out to be the children of officers involved in the service in adolescence. The greatest losses from cold steel were borne by the sons of priests who fell out of the Cossack education system in childhood, but reached higher ranks due to their literacy.
КІЛТТІК СӨЗДЕРДІ ШЫҒАРУДА МАШИНАЛЫҚ ЖӘНЕ ТЕРЕҢ ОҚЫТУ ӘДІСТЕРІН ҚОЛДАНУ
Authors: Абибуллаева А.А. , Баймаханова А.С.
Published: September 2024

Интернет технологиясының қарқынды дамуымен және соңғы уақытта жаңалықтар мазмұнының жылдам таралуымен мәтіннен кілттік сөздерді шығару маңыздылығы артып келеді. Осындай қажеттіліктерге байланысты кілттік сөздерді қолдану оқырманға қажетті ақпаратқа оңай және жылдам қол жеткізуге мүмкіндік береді. Кілттік сөзді шығару мәтінді өңдеудегі, табиғи тілді өңдеудегі және ақпаратты іздеудегі маңызды зерттеу бағыты болып табылады. Кілттік сөздің маңыздылығына және оны қолмен белгілеудің қиындығына байланысты, кілттік сөздерді автоматты түрде шығару маңызды нәтижелерді алуға мүмкіндік береді. Табиғи тілді өңдеудің қосалқы тақырыптарының бірі болып табылатын кілттік сөзді шығаруға автоматты индекстеу, автоматты жинақтау, автоматты классификация, автоматты кластерлеу, автоматты сүзгілеу кіреді. Табиғи тілді өңдеу салаларында машиналық оқыту мен терең оқыту тәсілдерінің арқасында жасанды интеллектке негізделген әдістер 2000 жылдардың басында қолданыла бастады. Кілтсөзді шығару үшін ұсынылған көптеген әдістер мен алгоритмдер бар. Бұл әдістерді екі негізгі тақырып бойынша топтастыруға болады: бақыланатын және бақыланбайтын тәсілдер. Қазіргі таңда қазақ тілі үшін машиналық оқыту және терең оқыту әдістері және табиғи тілді өңдеу зерттеулері шектеулі. Қазақ тілін танытатын корпус болмағандықтан, бүгінгі күнге дейін кілттік сөздерді шығару бойынша зерттеулер жоқ. Бұл сала онлайн қазақша контент көлемінің айтарлықтай ұлғаюына және қолданыстағы электрондық құжаттарға қолмен берілген кілт сөздердің сирек болуына байланысты көбірек күш салуды қажет етеді. Бұл зерттеуде кілттік сөздерді шығарудың машиналық оқыту әдістері және терең оқыту әдістері туралы жалпы ақпарат берілген және маңызды зерттеулер қарастырылған.
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Authors: Ramadhani Sarah Ayu , Rahma Sari Senja , Basyar Muslim
Published: September 2024

The mother's role as Madrasatul ūlā is very important to be implemented in order to support the success of a child's education, especially in early childhood moral education. In this modern era, mothers not only play the role of a housewife, quite a few mothers have a dual role, namely as a housewife and a career woman. Mothers who have dual roles must try to manage their time and balance their roles in terms of work and family life. This research aims to determine the role of mothers as Madrasatul Ūlā in moral education in the family. This research is a qualitative research. This type of research is field research or qualitative research. The subjects of this research were mothers who worked outside the home and had children in early aged. The research location is RW 5, Purwoasri Village, Metro Utara. The results of this research show that mothers have carried out their role as Madrasatul ūlā in educating their children's morals at an early age. This role can be seen from the educational process carried out in various ways by mothers in educating children's morals at an early age, namely, educating morals towards Allah SWT, morals towards Rasulullah SAW, parents, themselves and society
Formulation of Complementary Feeding Food Using Pearl Millet and Its Sensory Evaluation
Authors: Shobhita Kumari  , Neetu Singh  , Prashant Sagar
Published: September 2024

Infancy is a period of rapid development. As a result, the energy consumption per kilogram of body weight is higher than in adults. After birth, exclusive breastfeeding is recommended for at least 4-6 months. Supplemental feeding should begin after six months, when the body's needs increase. Supplementary mixes offered on the market and given through various systems are often cereal-based. When millet is used in supplemental feeding foods, it is often ground into a fine powder to make it easier for newborns to consume. Using complementary feeding meals containing millet can help introduce your baby to new textures and flavors while also delivering the nutrients they need for healthy growth and development. However, millets have the same calorific value as grains with higher mineral content. Combining these two-three grain foods improves protein and nutritional density in later food products. Probably because of their high nutritional content, this study evaluates several studies in the literature on the utilization of these crops to generate composite food products. In the majority of underdeveloped countries, complementary foods are made from staple cereals or root crops. As a result, the current study aimed to create a supplementary mix that included pearl millet, mung beans, and pigeon peas. Sensory evaluation was conducted using composite scoring to determine the best accepted supplemental mix.
Integrating Akan traditional art to enhance conceptual understanding in mathematics
Authors: AMOAKO ATTA SETH
Published: September 2024

The purpose of the study was to investigate how the Akan culture promotes conceptual understanding of geometry in senior high schools. The study area was the Ashanti region, which houses a chunk of the Akan people. The targeted population for the study included experienced mathematics teachers and people well-versed in Akan traditional art. Using purposive and snowball sampling methods, ten participants were recruited, including seven experienced mathematics teachers and three craftsmen. Data was collected through interviews to elicit in-depth information from participants using a semi-structured interview guide. The data was analysed using thematic analysis. One major theme and four sub-themes were identified, indicating that to achieve conceptual understanding, teachers make use of learners’ experiences as they build new knowledge, which enables learners to transfer the knowledge to new situations as they apply the knowledge. We therefore conclude that the Akan culture has connections with geometry, and teachers are encouraged to adapt the school geometry to the Akan culture. We also encourage more research in the area of ethnomathematics to widen the scope.
Roadmap of Creating a Bilingual Uzbek-German Electronic Dictionary of Forestry Terms
Authors: Tilovova Gavhar
Published: September 2024

This article examines the significant problem that Uzbek lexicography currently faces, namely the translation of forestry-related terms and lexicons into a bilingual Uzbek-German online dictionary. Naturally, in consideration of the fact that we live in the era of information, the valuable perspectives of scholars regarding online dictionaries are presented, and the disparities between printed and electronic dictionaries are elucidated. Additionally, forestry terms are actively employed in the discourse of experts in this domain, and initially, they are gathered, summarized, and organized into a system, thereby showcasing the ways in which online dictionaries can better serve users compared to their printed counterparts. At the same time, the article provides a general understanding of the four-step process of creating a dictionary, which is intended to meet the demand for online dictionaries of forestry professionals. The matter of developing high-quality and flawless bilingual online dictionaries is explored, and a recommendation is posited that, in the future, dictionaries should be entirely electronic rather than solely online.
Military staff study as a tool for language policy design
Authors: Jarayapun Jitpicha
Published: September 2024

A staff study (SS) is an administrative tool used for decision making which involves data gathering and analysis to determine the proper resolution to an issue. SS is also used in the areas of the military which are mostly assigned with classified information; as a result, resources regarding staff studies are still restricted or available in limited amounts. Furthermore, SS is rational and applicable in interdisciplinary academic fields; especially, in an area of policy design. This article proposes the value of such a study in education policy making through its application in the specific investigation of English testing development in the Royal Thai Navy (RTN). It articulated that a SS shares similar purpose to applied research in language education; yet, it is more focused on applying knowledge to problem solutions and circumstances. Though SS does not prepare to build or extend knowledge and expertise, its principle enacts a logical model guiding all existing context variables into the study. Thus, it can provide a thinking springboard for solving problems in language education. Finally, it can create a possible innovative way to deal with unique problems while further experimental process with the data analysis can justify research in language education.
Gearing towards efficient problem solving
Authors: RODIL MARY SHEENALYN
Published: September 2024

Enhancing students' skills as competent problem solvers is one of the primary educational challenges. For students to succeed, it is essential to determine the elements that best encourage and develop problem-solving abilities. With the help of SEM's strong statistical framework, a model that shows how self-efficacy, grit, utility value, help seeking behavior and executive control interact and contribute to problem solving efficiency was developed. The path analysis, combined with students' explanation, provided strong support for the framework, and among the determinants examined in the study, utility value and executive control, were observed to exert a significant influence on college students' problem solving proficiency. The implication of these findings is that enhancement of students’ higher-order cognitive processes involved in planning, monitoring and regulating cognition and their perceptions of task usefulness should be the main goals of interventions designed to increase problem solving abilities.
Strategic Analysis for Developing Tourism in Toba Regency: A Sustainable Management Approach
Authors: Lubis Muhammad Arif , Siregar Ayu Dhisa Faradiba
Published: September 2024

Toba Regency, located in North Sumatra, Indonesia, offers vast potential for tourism development, thanks to its natural beauty, cultural heritage, and historical significance. This study analyzes the strengths, weaknesses, opportunities, and threats (SWOT) related to tourism in Toba Regency, utilizing a sustainable management approach to enhance the region's tourism sector. By conducting a SWOT analysis and evaluating both internal and external factors, the study identifies key strategies for boosting tourism, including improving infrastructure, increasing local community involvement, and promoting the region’s unique cultural and natural attractions at national and international levels. The findings suggest that leveraging Toba Regency's natural and cultural resources, while addressing limitations in infrastructure and community engagement, can significantly enhance its tourism potential. The strategic recommendations provided focus on sustainable practices that will benefit the local economy, preserve cultural and environmental assets, and foster long-term tourism growth.
Synthesis of Carbosilane Dendrimers with an Amine-Containing Shell Using CuAAC
Authors:   Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, ul. Profsoyuznaya 70, Moscow, 117393 Russia, Ardabevskaia S. N. ,   Research Laboratory of New Silicone Materials and Technologies, Tula State Lev Tolstoy Pedagogical University, pr. Lenina 125, Tula, Tula Oblast, 300026 Russia,   Center of National Technological Initiative, Bauman Moscow State Technical University, 2-ya Baumanskaya ul. 5, Moscow, 105005 Russia, Milenin S. A. ,   Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, ul. Profsoyuznaya 70, Moscow, 117393 Russia,   Research Laboratory of New Silicone Materials and Technologies, Tula State Lev Tolstoy Pedagogical University, pr. Lenina 125, Tula, Tula Oblast, 300026 Russia,   Center of National Technological Initiative, Bauman Moscow State Technical University, 2-ya Baumanskaya ul. 5, Moscow, 105005 Russia
Published: September 2024

A new synthetic approach to carbosilane dendrimers bearing amino-containing functional groups in the shell is proposed based on the Cu-catalyzed azide–alkyne cycloaddition. The structures of the resulting compounds are confirmed using 1H, 13C, and 29Si NMR spectroscopy, as well as gel permeation chromatography.
Use of Tetrakis(2-ethoxyethoxy)silane for the Preparation of Ethylalkoxysilanes of a Single Structure by the Organomagnesium Methods
Authors:   Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, ul. Profsoyuznaya 70, Moscow, 117393 Russia, Ardabevskaia S. N. ,   Research Laboratory of New Silicone Materials and Technologies, Tula State Lev Tolstoy Pedagogical University, pr. Lenina 125, Tula, Tula Oblast, 300026 Russia,   Center of National Technological Initiative, Bauman Moscow State Technical University, 2-ya Baumanskaya ul. 5, Moscow, 105005 Russia, Milenin S. A. ,   Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, ul. Profsoyuznaya 70, Moscow, 117393 Russia,   Research Laboratory of New Silicone Materials and Technologies, Tula State Lev Tolstoy Pedagogical University, pr. Lenina 125, Tula, Tula Oblast, 300026 Russia,   Center of National Technological Initiative, Bauman Moscow State Technical University, 2-ya Baumanskaya ul. 5, Moscow, 105005 Russia, Muzafarov A. M. ,   Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, ul. Profsoyuznaya 70, Moscow, 117393 Russia
Published: September 2024

A new method for obtaining individual ethylalkoxysilanes of various types of substitution without using chlorosilanes is proposed based on the reactions of tetrakis(2-ethoxyethoxy)silane with the Grignard reagents. The structures of the compounds obtained are confirmed by NMR spectroscopy and GLC.
DOLARİZASYONUN EKONOMİK DİNAMİKLERE ETKİSİ: TÜRKİYE ÖRNEĞİ
Authors: Hazar Adalet , Babuşcu Şenol , Yalçıner Zeycan
Published: September 2024

Çalışmanın amacı ekonomik ve finansal göstergeler arasındaki uzun dönemli ilişkiyi ortaya koyarak karar vericilere ve piyasa aktörlerine bulgu sunmaktır. Bu kapsamda Türkiye ekonomisinde 2008:12 – 2024:06 arasındaki dönemde dolarizasyon oranı, CDS risk primi, enflasyon oranı, döviz kuru ve faiz oranı arasındaki ilişki Granger nedensellik testi kullanılarak analiz edilmiştir. Analiz sonuçlarına göre tüm değişkenlerden CDS ve faizin diğer değişkenlerdeki hareketliliğe sebep olduğu (sadece neden özelliği bulunduğu), dolarizasyon oranı ile enflasyon oranı ve döviz kuru arasında çift yönlü, döviz kuru ve enflasyon oranı arasında da çift yönlü ve güçlü bir nedensellik ilişkisi bulunmuştur. Diğer bir taraftan, dolarizasyondan hem faiz oranına hem de CDS risk primine doğru olmak üzere tek yönlü nedensellik ilişkisi tespit edilmiştir. Döviz kurundan ise faiz oranına doğru tek yönlü nedensellik ilişkisi olduğu görülmüştür. Elde edilen bulguların başta para politikası belirleyicileri olmak üzere piyasa oyuncularına önemli bilgi sunduğu görülmektedir.
An Investigation of E-Learning Stress, Anxiety, and Depression on ESL Students' Performance at Speaking Skills in the Gulf Region
Authors: Marium Bushra  , Shabina Tabassum  , Abida Bibi Yousaf  , Sabiha Khatoon
Published: September 2024

This paper will investigate the stress of e-learning on ESL students’ mental health and their performance in speaking skill exams. This prolonged pandemic has put people at risk of developing mental illness and physical disease. The mental distress caused by the covid 19 has adversely affected the education sector significantly higher education students. The objective of this research paper will also review the relationship between prolonged exposure to digital learning stress, mental well-being, and student's performance. A cross-sectional descriptive study will be (survey)designed to assess the level of Anxiety, Stress, and depression in graduate students undergoing online classes in KSA. The population of this research will be ESL students studying for a graduate degree at Qasim University KSA and Kuwait University in GULF after the COVID-19 pandemic. A random stratified sample will be collected. The research tool will consist of a questionnaire based on DASS 21. Data will be collected and analyzed by SPSS (version 27). Results will be drawn, and remedial coping strategies will be recommended to help university students cope with the psychological burden affecting their speaking skill performance.
Stump Appendicitis: A Complication of Post Appendectomy
Authors: Maawa Merza Juma  , Tahera Ahmed Fateel  , Rahul Sam Mathew  , Soumya Sunil Nair  , Ali Merza Juma  , Haider Ali , Zainab Khalil Mohamed Al-Saati
Published: September 2024

Stump appendicitis is a rare but serious complication that can occur after an appendectomy, characterized by inflammation and infection of the remaining portion of the appendix (1). Patients typically present with symptoms similar to those of appendicitis, such as abdominal pain, fever, and nausea. However, the diagnosis can be challenging because the patient has previously undergone an appendectomy, potentially leading to delays in treatment and increased risk of complications (1). In this case, a 38-year-old male, who had a smooth recovery following a laparoscopic appendectomy 15 years prior presented to the emergency department with worsening abdominal pain. Despite his initial postoperative recovery, he developed stump appendicitis, as confirmed by a CT scan. The condition was managed with antibiotics and a percutaneous drain, leading to significant improvement. He is now scheduled for a completed appendectomy to remove the remaining appendix stump. This case highlights the critical importance of including stump appendicitis in the differential diagnosis for patients with a history of appendectomy who present with acute abdominal pain. Timely diagnosis and intervention are essential to prevent complications and ensure appropriate management.
Breaking Down SCAD: A Deep Dive into Spontaneous Coronary Artery Dissection (SCAD)
Authors: Jalal Dilshaad Mohammed Murad  , Khurram Sarfaraz  , Imman Mohammad IrfanulQadri  , Haider Ali , Naser Mohamad Mansoor  , Layla Al-Mutawa  , Hawra Fawzi Abdulla  , Reem Husain Al-Arab  , Ahmed Taher Ahmed Al-Qayem
Published: September 2024

Spontaneous Coronary Artery Dissection (SCAD) is a rare, non-atherosclerotic cause of acute coronary syndrome, mainly seen in females with non-traditional cardiovascular risk factors. This case report follows a 44-year-old female who experienced a sudden onset of severe chest pain, which was attributed to SCAD following a coronary angiogram. This case emphasizes the importance of recognizing such presentations within the emergency department, particularly regarding differential diagnosis of chest pain following emotional or physical stressors. It also highlights the need for a multidisciplinary approach in terms of proper management with cardiology, emergency medicine, and mental health care to reduce the risk of reoccurrence. This case report aids in underscoring SCAD’s significance as a potential cause of ST Elevation Myocardial Infarction in what is noted as a low-risk population and the critical role of awareness and education in terms of its diagnosis and management.
Foliar application of IAA and GA3 on growth and yield attributes of mungbean (Vigna radiata L. R. Wilczek)
Authors: Nourin Yeashina , Hoque Md Ashabul , Islam Mohammad Mahbub , Labib Litun Ahmed , Dey Swagata
Published: September 2024

A field experiment was conducted to assess the effects of foliar application of Indole acetic acid (IAA) and Gibberellic acid (GA3) on the growth and yield of mungbean (BARI Mung-6) plants. Nine treatments were administered, including various concentrations of IAA and GA3, applied individually and in combination. The experiment followed a randomized complete block design (RCBD) with three replications, data were recorded on growth and yield parameters at 30 days after sowing (DAS) and at harvest. Results indicated that treatment T8 (IAA 50 mg/l + GA3 50 mg/l) significantly enhanced growth and yield attributes. Notably, T8 exhibited the highest values for plant height (57.50 cm), number of leaves per plant (47.33), number of branches per plant (7.67), chlorophyll content (55, SPAD value), shortest duration to 80% flowering (27.33) with 80% pod maturity (55.33), number of pods per plant (37.67), pod length (14.99 cm), number of seeds per pod (13.78), weight of 1000 seeds (54.95 g), seed yield (1.68 t/ha), biological yield (3.52 t/ha), and harvest index (47.73%). Conversely, the untreated control (T0) exhibited the lowest performance across all parameters. Therefore, foliar application of IAA and GA3, particularly at 50 mg/l concentration each, demonstrated significant improvements in growth, yield, and related attributes of mungbean.
Bangladesh J. Bot. 53(3): 459-464, 2024 (September)
Diversity index of argania spinosa l. Skeels plant formation in the algerian western sahara
Authors: Sarra Ghalem , Reda Kechairi , Faiçal Hassani , Imene Abdelli
Published: September 2024

The argan (Argania spinosa) is a xerothermophilous tree, endemic in North-West Africa. In Algeria, it is found as wild in the northwest of the Hamada du Drâa of Tindouf (Algerian Western Sahara), where it is characterized by a great floristic diversity. Several indices were calculated in this study to have a better knowledge on the state of biological diversity of the argan tree ecosystem. It is characterized by a floristic richness composed of 123 taxa belonging to 38 families including the dominance of three major floristic families: Asteraceae, Brassicaceae and Amaranthaceae. Biologically, the study area is dominated by therophytic species. This therophytization is marked by a general invasion of annual species. The diversity index of Shannon-Weaver (4.42) associated with that of Pilou's equitability (0.843) are relatively high, which showed that the flora of the argan forest of Tindouf is highly diverse. The disturbance index is high (76%) which reflects a significant degree of disturbance of the plant formation and also a strong anthropozoic influence.
Bangladesh J. Bot. 53(3): 447-457, 2024 (September)
Assessing the genetic diversity and character association of yield components in litchi (litchi chinensis sonn.)
Authors: Lal Narayan , Kumar Abhay , Pandey Sd
Published: September 2024

Eighteen litchi genotypes were evaluated in this study for genetic advancement, heritability, variability, and association studies. The genotype ‘CHL-4’ exhibited maximum fruit weight (28.12 g), aril weight (14.00 g), aril thickness (9.65 mm) and seed weight (4.86 g). Fruit length (10.70 and 10.46%), panicle width (10.61 and 10.37%), and panicle length (15.75 and 15.45%) all had substantial phenotypic and genotypic coefficients of variation. All the metrics, with the exception of fruit diameter, aril thickness, seed weight, and number of fruits/panicle, showed higher heritability estimations with substantial genetic advances. In addition to being negatively correlated with fruit weight, aril weight, seed weight and pulp thickness, yield also showed a strong positive correlation with the number of fruits/panicle and aril percentage. Path analysis made the impact of different components on yield very evident. The maximum positive direct effect on yield at genotypic level was through fruit weight (10.120) followed by seed weight (4.070), panicle length (1.550), panicle girth (1.170) and negative direct effect via aril weight (-0.12.860) followed by panicle width  (-11.830), fruit length (-6.290). In order to select a diverse parent for a subsequent breeding effort, cluster analysis assists in classifying comparable objects into appropriate categories. Therefore, the goal of the study was to confirm the genetic variability across genotypes of litchi and identify prospective features for the selection of genotypes that are superior.
Bangladesh J. Bot. 53(3): 465-473, 2024 (September)
In vitro and in vivo pharmacological evaluation of polygonum persicaria l.
Authors: Siddiq Md Mahfuj Alam , Akter Jeasmin , Kuddus Md Ruhul , Rashid Mohammad A
Published: September 2024

The present study was designed to investigate the in vitro antioxidant, cytotoxic, anthelmintic and in vivo analgesic, anti-diarrheal, hypoglycemic and CNS anti-depressant properties of different solvent fractions of methanol extract of leaf and flower of Polygonum persicaria L., a notable medicinal plant in Bangladesh. The crude methanol extracts were partitioned separately to petroleum-ether, carbon tetrachloride, chloroform and aqueous fractions. In DPPH scavenging assay for antioxidant test, the aqueous fraction of flower extract showed maximum antioxidant activity with IC50 of 0.60 μg/ml. Most of the fractions revealed prominent lethality (LC50) against brine shrimp nauplii. The test samples also exhibited dose-dependent anthelmintic activity against Pheretima posthuma. The leaf extract and flower extract (200-and 400 mg/kg b.w.) can decrease the painful sensation in mice. Leaf extracts and flower extracts displayed 57.69 and 50% reduction of diarrhea induced by castor oil in mice, respectively. The plant samples exhibited hypoglycemic effect and CNS anti-depressant effect in mice. Based on the possibility of bioactivity, the plant can be thoroughly examined to determine its potential efficacy and to support its traditional uses.
Bangladesh J. Bot. 53(3): 475-485, 2024 (September)
Effects of ethyl methanesulfonate on growth and yield parameters of wheat and tolerance to imazamox
Authors: Bayhan Merve , Özkan Remzi , Albayrak Önder , Akinci Cuma , Yildirim Mehmet
Published: September 2024

In the present study objective bread wheat (Triticum aestivum L.) and durum wheat (Triticum durum Desf.) lines resistant to Imazamox herbicides and effective lethal ethyl methanesulfonate (EMS) doses for plants. During first year (2019/2020), 1000 seeds of bread wheat and durum wheat treated with 11 different EMS doses were sown under field and greenhouse conditions. During second year (2020/2021), M1 (first generation) cereal seeds were grown as M2 (second generation) in field experiments. Herbicide with Imazamox active ingredient at 125 ml da-1 was applied to the approximately 15 cm tall plants in the M2 generation. In bread and durum wheat lines, emergent plants were observed up to a dose of 60mM EMS. The effective EMS doses for the wheat species were determined as 80 mM for bread wheat and 50 mM for durum wheat.
Bangladesh J. Bot. 53(3): 487-493, 2024 (September)
Morpho-molecular characterization of fungi associated with seeds of hybrid rice varieties in bangladesh
Authors: Liza Sangida Akter , Shamsi Shamim , Noman Md Abdullah Al
Published: September 2024

Rice, as the dominant crop in Bangladesh, is vulnerable to various fungal pathogens. Many of these pathogens infect the seeds, which can later transmit diseases and serve as an efficient means for spreading seed-borne pathogens over long distances. In this study, seven hybrid rice varieties, specifically BRRI Hybrid Dhan 101 through BRRI Hybrid Dhan 107, were collected from the Bangladesh Rice Research Institute (BRRI) to detect and identify seed-borne fungi using both morphological and molecular techniques. Fourteen fungal species were isolated from the selected rice varieties using “Tissue planting method” and “Blotter method”, of which 4 fungal isolates were identified by molecular techniques. Molecular characterization of the isolates was conducted based on the sequence information of internal transcribed spacer (ITS) regions. The sequences obtained using the ITS1 and ITS4 primers were compared with those in the NCBI GenBank using BLAST analysis. Hybrid rice is comparatively more advantageous than inbreed rice because of its high yield, shorter plant life, and higher assimilation translocation. Therefore, it is crucial to identify and manage the pathogenic fungi associated with the seeds to ensure good seed quality, which can contribute to improving the economy of Bangladesh.
Bangladesh J. Bot. 53(3): 511-518, 2024 (September)
Impact of conservation tillage practices in rice-blackgram cropping system
Authors: Subrahmaniyan K , Parthipan T , Rajavel M , Veeramani P
Published: September 2024

Field experiments were conducted with two tillage practices in rice (Puddled and Non- puddled) during rainy season and three seed priming methods (Bio- seed priming with Rhizobium, hydropriming and no seed priming) and two foliar spray (2% DAP and 2% urea) during post rainy seasons in blackgram. The results indicated that the soil penetration resistance was found to be lesser in the soils of non-puddled tillage. The rice yield reduction due to NPTR was non-significant (less than 3 per cent). However, the soil penetration resistance was higher with the soils of blackgram sown as succeeding crop in the PTR. The blackgram yield obtained under NPTR was 10.6 per cent higher than PTR system. Bio seed priming with Rhizobium increased the yield by 26.0 per cent over no seed priming. The study indicated that NPTR showed a positive impact on the yield in the rice-blackgram relay cropping system.
Bangladesh J. Bot. 53(3): 519-525, 2024 (September)
Growth and yield of direct seeded rice as influenced by irrigation levels and varieties
Authors: Sambegowda Sathisha Govinakere , Mavarkar Narayana Shivarudrappa
Published: September 2024

The combined influence of agronomic, environmental and genetic variables results in better crop yield. Among these components, an appropriate irrigation system and varietal choice are crucial. With this background, a field experiment with a split-plot layout was planned during the summer period of 2020 at the Agriculture and Horticultural Research Station, Bhavikere, Karnataka, India, to examine the effects of four different irrigation levels (0.75, 1.00, 1.25 and 1.50 IW/CPE ratio) in the main plot and four different varieties (Local variety, Jyothi, MAS 946-1 and MAS-26) in the subplots on growth and yield performance under direct seeded rice condition. Results of the experiment revealed that among four different levels of irrigation, scheduling irrigation at 1.50 IW/CPE ratio recorded higher growth and yield parameters at harvest viz., plant height (82.76 cm), number of tillers per plant (13.29), leaf area index (2.66), total dry matter accumulation (73.36 g/plant), number of panicle per plant (10.35), panicle length (21.59 cm), number of filled grains per panicle (90.4), grain yield (5569 kg/ha) and straw yield (7514 kg/ha). While, among the varieties used for the study, MAS 946-1 recorded the higher growth and yield parameters at harvest (64.19 cm, 13.96, 2.45, 73.34 g/plant, 10.96, 21.25 cm, 84.3, 5743 kg/ha and 7288 kg/ha, respectively). Hence, scheduling irrigation at 1.50 IW/CPE ratio and use of MAS 946-1 variety demonstrated superior performance, making it most appropriate for maximising higher production under direct seeded rice condition.
Bangladesh J. Bot. 53(3): 527-533, 2024 (September)
In silico analysis and functional validation of sinf-yc genes in foxtail millet setaria italica (l.)
Authors: Qi Dongmei , Shi Shenkui , Wang Yufang , Zhang Renliang , Li Shuo , Huang Yifan , Wang Chunfang
Published: September 2024

Nuclear transcription factor YCs (NF-YCs) are universally involved in plant development and abiotic stress response. As a typical C4 crop, foxtail millet has significant research value for studies of functional genes and mechanisms of plant stress resistance. To further investigate the correlation between the structure and function of the SiNF-YC genes in foxtail millet (Setaria italica), bioinformatic analysis of the SiNF-YCs on the subcellular localization, physicochemical properties, and cis acting elements were performed in this study. The results showed that a total of 12 SiNF-YC subfamily genes that distributed on chromosomes 1-9 were identified from the foxtail millet genome, which encoding 129-469 amino acids. The subcellular localization prediction results showed that the proteins encoded by this gene subfamily are mainly located in the nucleus, with a few being extracellular secreted. The multiple cis-elements related to drought resistance and light response are contained in the gene promoter region. Through haplotype analysis on the phenotypes of drought treated and heading dates that from five different regions, obvious haplotypes were identified except for SiNF-YC8 and SiNF-YC14. At last, drought regulation related gene SiNF-YC5 and heading date regulation related gene SiNF-YC10 were selected to explore superior gene haplotypes, laying a foundation for further exploring the functional genes involved in drought resistance and development within this gene family.
Bangladesh j. Bot. 53(3): 535-543, 2024 (September)
Evaluation of grain yields of selected bread wheat (triticum aestivum l.) Varieties in changing climatic conditions using different analytical models
Authors: Karaman Mehmet
Published: September 2024

In the present study were determined the variety or varieties with high grain yield and stability despite changing climatic conditions, and also to include these varieties as genetic material in parent lists in breeding programs. The additive main effect and multiplicative interaction (AMMI) analysis results the effects of cultivars (C), environments (E) and cultivar x environment interaction (CEI) were found to be important over grain yield at p≤0.01 level. Also, showed that grain yield performance of bread wheats were greatly affected firstly by the environment (70.42%), secondly from the interaction (7.29%), the least by variety (6.79%). The polygon graph obtained by genotype, genotype x environment (GGE) biplot analysis showed that two separate mega environments were formed, Nurkent variety was the best for first mega-environment, while Pehlivan variety for the second mega environment. GGE biplot determined that the ideal environment for bread wheat was environment 9 (E9) and the ideal genotype was Nurkent. Due to the visual presentation of AMMI and GGE biplot graphs, analysis results showed that these two models can be used to visually identify the best genotypes.
Bangladesh J. Bot. 53(3): 545-554, 2024 (September)
Quantitative analysis of bioactive compounds in five black tea sortiments of the romanian market
Authors: Popoviciu Dan Răzvan , Bădin Mihaela Valentina
Published: September 2024

Five black tea types, Assam, Darjeeling, Earl Grey, English Breakfast and Oolong were tested for their chlorophyll, carotenoid, flavonoid, total phenolic content and essential oil content. English Breakfast had the highest chlorophyll content (834 mg/kg) and Earl Grey, the highest carotenoid content (360 mg/kg). Total phenolic content was the highest in Darjeeling (an average of 40,874 mg/kg ), while flavonoids, specifically, reached the highest concentrations in Oolong (498 mg/kg). Total essential oils were maximum in Assam tea blend (4,600 mg/kg). Tea pH values ranged between 6.13-6.66.
Bangladesh J. Bot. 53(3): 555-560, 2024 (September)
Allelopathic effects of leaves extract of parthenium hysterophorus l. On seed germination of three Rice varieties
Authors: Bhowmick Prottasha , Alam Mohammad Ashraful , Kamal Liza , Rahaman M Azizar , Ahmed Ashfaque
Published: September 2024

This study investigates the allelopathic effects of Parthenium hysterophorus L. leaf and root extracts on the germination and growth of three rice varieties (Hira dhan, BRRI dhan-28, and BRRI dhan-29) in Bangladesh. Leaf and root extracts of P. hysterophorus were prepared at different concentrations and applied to rice seeds in a controlled environment. Results showed that low concentrations of the extracts inhibited seed germination and growth, with significant differences among rice varieties (p < 0.05). Hira dhan exhibited the most sensitivity, with germination rates as low as 42.86% under high extract concentrations. In contrast, BRRI dhan-29 showed a stimulatory effect, particularly at low concentrations. The shoot and root lengths of Hira dhan and BRRI dhan-29 were significantly inhibited at higher concentrations, while BRRI dhan-28 demonstrated growth stimulation. The fresh and dry weights of roots and shoots varied significantly among the varieties with the greatest inhibitory effect observed in BRRI dhan-29. These findings align with previous studies, suggesting that allelochemicals in P. hysterophorus, such as parthenin and phenolic acids, play a critical role in inhibiting rice growth. The study emphasizes the need for further research on allelopathic interactions and suggests that controlling P. hysterophorus at the crop emergence stage could mitigate its suppressive effects on rice growth.
Bangladesh J. Bot. 53(3): 411-421, 2024 (September)
Nitrite scavenging activities and reducing power capacities of ethanolic extracts of some fruits and vegetables
Authors: Can Kubra , Sacan Ozlem , Yanardag Refiye
Published: September 2024

The use of fruits and vegetables for therapeutic purposes has been continuing for centuries. Now-a-days, fruits and vegetables are increasingly used as alternative medicines. The antioxidant activities of some fruits and vegetables used in the present study were determined by nitrite scavenging and reduction power experiments. Antioxidant capacity increased with increasing concentration. The highest nitrite scavenging activity and inhibitory power were observed in garlic extract. The least nitrite scavenging activity and reducing power were found in white grape and kiwi extracts. It was concluded that garlic extract which had the highest nitrite scavenging capacity and reducing power may be an appropriate additive in drugs and other pharmaceuticals intended for medical purposes.
Bangladesh J. Bot. 53(3): 619-625, 2024 (September)
Liderliğin Ortaya Çıkışını Anlamak: Sosyal Kimlik ve Psikososyal Gelişime Odaklanan Yaklaşımların İncelenmesi
Authors: Külhancı Ömer , Akfirat Serap
Published: September 2024

Bu derleme, çocukluk döneminde liderliğin ortaya çıkışını ve gelişimini, özellikle benlik ve sosyal kimlik oluşumunun psiko-sosyal gelişimle olan etkileşimine odaklanarak eleştirel bir şekilde incelemektedir. Liderlik, genellikle müstakil bir beceri olarak görülse de bu bakış açısı sosyal ve psikolojik faktörlerin önemli etkilerini dikkate almamaktadır. Bu derlemede, dört gelişimsel yaklaşımın, Gelişimsel Gruplararası Kuramının, Sosyal Kimlik Gelişim Kuramının, Sosyal Akıl Yürütme Gelişim Modelinin ve Gelişimsel Öznel Grup Dinamikleri Modelinin, çocuklarda liderlik gelişimine ilişkin kuramsal açıklamaları ve araştırma bulguları sunulmaktadır. Bu yaklaşımların sosyal kimlik gelişim süreçlerinin sonuçları olarak liderlik motivasyonlarının ve davranışlarının ortaya çıktığı örüntüleri aydınlatmadaki rolü eleştirel bir şekilde değerlendirilmektedir. Bu kuramların ortak noktaları, grup süreçleri içerisinde ortaya çıkan liderliğin, olumlu benlik motivasyonuna dayandığı, gerçekliği anlama arayışı ile kavrayabilme becerisine ve sosyal çevreden bilgi toplama kapasitesine sahip olmayı gerektirdiğini öne sürmeleridir.
Dikkat Eksikliği/Hiperaktivite Bozukluğunu İçeren İnterdisipliner Eğitim Programının Öğretmenler ve Akademisyenler Üzerine Etkisi
Authors: İnce Gonca , Yıldırım Nurcan
Published: September 2024

Bu çalışma, Dikkat Eksikliği/Hiperaktivite Bozukluğu (DEHB)’nu içeren interdisipliner eğitim programının (IEP) öğretmenler ve akademisyenler üzerine etkisini belirlemek amacıyla yapılmıştır. Çalışmada, karma yöntemlerden müdahale deseni kullanılmıştır. Müdahale deseninde; nicel kısımda tek gruplu ön/son test deneysel bir yöntem ve nitel kısımda ise tematik analiz yapılmıştır. Çalışmaya, Adana İl Milli Eğitim Müdürlüğü’nde görev yapan 19 öğretmen ve farklı üniversitelerden 12 akademisyen toplam 31kişi gönüllü olarak katılmıştır. Katılımcılar için, DEHB hakkında 20 seanslık bir IEP hazırlanmıştır. IEP, farklı disiplinlerde görev yapan, 14 öğretim elemanı tarafından çevrimiçi (TEAMS) sunulmuştur. Katılımcılara DEHB hakkında çoktan seçmeli 20 sorudan oluşan bir bilgi değerlendirme anketi eğitim öncesi/sonrası yapılmıştır. İstatistiksel değerlendirmelerde; nicel kısımda Wilcoxon testi ve nitel kısımda ise tematik analiz kullanılmıştır. Hem akademisyenlerin(p=0.03), hem de öğretmenlerin(p=0.001) eğitim sonrası DEHB hakkındaki bilgi birikimleri anlamlı bir şekilde geliştiği tespit edilmiştir. Ayrıca, katılımcıların DEHB olan öğrencilerine bakış açılarının geliştiği ifade edilmiştir. Adana İli’nde kesitsel olarak yapılan bu IEP’nin, tüm Türkiye genelinde öğretmenlere/akademisyenlere verilmesinin uygun olabileceği önerilmektedir.
Dijital Çağda Öğretmenlerin Tele-Hiçleme Davranışlarına Yönelik Görüşleri
Authors: Aydın Merve , Çetin Münevver
Published: September 2024

Bu çalışmada dijital çağda Y ve Z kuşağı öğretmenlerinin tele-hiçleme davranışlarına yönelik görüşlerinin incelenmesi amaçlanmaktadır. Araştırma fenomenoloji deseni ile yürütülmüştür. Araştırmanın çalışma grubunu 12 öğretmen oluşturmaktadır. Araştırma verileri yüz yüze görüşme yoluyla yarı yapılandırılmış görüşme formu üzerinden toplanmıştır. Araştırmaya katılan Z kuşağı öğretmenleri akıllı telefona hayatı kolaylaştıran cihaz şeklinde anlam yüklerken; Y kuşağı öğretmenleri ise akıllı telefona hızlı iletişimi ve bilgiye erişmeyi sağlayan cihaz şeklinde anlam yüklemektedir. Araştırmaya katılan öğretmenlerden Z kuşağı öğretmenlerinin çoğu tele-hiçleme davranışlarının öğrenci üzerindeki etkilerini iletişimin bozulması şeklinde ifade ederken; Y kuşağı öğretmenlerinin çoğu ise değersizlik hissi şeklinde bildirmektedir. Katılımcılar tele-hiçleme davranışlarının iş ortamındaki ilişkileri üzerindeki etkilerini iletişim problemleri, ilişkileri güçlendirememe, değersizlik hissi ve olumsuz konuşmalardan uzak durmayı sağlama olarak belirtmektedir. Katılımcılar tele-hiçleme davranışları ile süre kısıtlaması koyma, farklı uyaranlar arama, telefonu sessiz moda alma, kendi ile anlaşma yapma, ana odaklanma, günlük planlama yapma ve göz teması kurmaya çalışma yolları ile başa çıkmaya çalışmaktadır.
2018 İngilizce Dersi 8. Sınıf Öğretim Programının CIPP Modeli Kullanılarak Değerlendirilmesi
Authors: Kerimoğlu Esra , Eminoğlu Küçüktepe Seval
Published: September 2024

Bu araştırmada, Stufflebeam’in CIPP (Bağlam, Girdi, Süreç ve Ürün) değerlendirme modeli kullanılarak 2018 yılında uygulamaya konan 8. sınıf İngilizce dersi öğretim programının (İDÖP-8) değerlendirilmesi amaçlanmıştır. Araştırmada yakınsayan paralel desen kullanılmıştır. Nicel kısımda, 373 İngilizce öğretmeninin görüşleri program değerlendirme anketi ile toplanmıştır. Nitel kısımda ise ankete katılan öğretmenler arasından 12’siyle yarı yapılandırılmış görüşmeler yapılmıştır. Araştırma sonuçlarına göre, bağlam değerlendirme boyutu kapsamında öğretmenlerin genel olarak programın kazanımlarına yönelik olumlu görüş bildirirken fiziksel koşullar nedeniyle Türkiye’nin farklı bölgelerinde programın uygulanabilir olmadığını düşünmektedirler. Girdi değerlendirme boyutunda, ders kitaplarının yetersiz olduğu, öğrencilerin hazır bulunuşluklarının ise kısmen yeterli olduğu tespit edilmiştir. Öğretmenler, programın uygulanması için kendilerini yeterli görmektedirler. Süreç değerlendirme boyutunda, öğrenci merkezli öğretim yöntemlerinin kısmen kullanıldığı ancak sınıf mevcutlarının kalabalıklığının programın uygulanmasını engellediği sonucuna ulaşılmıştır. Ürün değerlendirme boyutunda ise dönem içindeki sınavların dört beceriyi eşit olarak ölçmediği ancak öğrencilerin yıl sonunda dil bilgisi açısından ilerleme kaydettiği görüşü belirtilmiştir.
Tüsterî Tefsiri’nin İhmal Edilen Yönü: Sünnet Vurgusu ve Bid‘at Karşıtlığı
Authors: Türcan Saliha
Published: September 2024

Tüsterî’nin Tefsîru’l-Kur’âni’l-‘azîm adlı eseri literatürde işârî tefsir geleneğinin ilk temsilcisi olarak bilinmektedir. Bununla birlikte ayetlerin batınî yorumlarını içeren bu eserde kendinden önceki dönemlerde ve kendi döneminde gündem olan fikrî tartışmaların yansımalarını bulmak mümkündür. Tüsterî’nin ayetleri izahında dönemin temel tartışma konusunu teşkil eden sünnet-bid‘at meselesi oldukça bariz bir şekilde yer almıştır. O, ayetlere ilişkin izahlarında sık sık sünnete vurgu yapmakta ve bid‘at karşısındaki katı tutumunu dışa vurmaktadır. İtikâdî açıdan ehl-i sünnet çizgisinde olması onun tarafını belirlemede etkili olmakla birlikte bu tavrının çok daha ileri kişisel bir hassasiyete dayandığı da anlaşılmaktadır. Zira onun sünnete ittibayı bu derece vurgulayan ve bid‘ati küfre yaklaştıran tavrına literatürdeki diğer tefsirlerde rastlanmamıştır. Onun sünnet, bid‘at ve genel olarak ehl-i bid‘atle ilgili görüşleri çoğunlukla ehl-i hadisin görüşleriyle örtüşmektedir. Tüsterî’nin tefsirinde kullandığı sünnet, bid‘at, cemaat gibi kavramlarla, kavramsallaşma sürecindeki ehl-i sünnete kendi ölçülerince katkı sunduğu söylenebilir.