Effect of packages types and some treatments on wheat seed during storage

This experiment was conducted at the laboratory of Seed Technology Sakha Agricultural Research Station, Kafr EL-Sheikh, Egypt, during the period between 2018 and 2019 seasons. The aim of this study was to evaluate the effect of packages types and some treatments on wheat seed during storage. The experiment was designed in factorial experiment in completely randomized design with four replicates. The samples were treated with the recommended dose of malathion, recommended rate of phosphine, the powders and extracts of each of (ficus, camphor, clove), the powder of copper nanoparticles and untreated seed as a control treatment. Treated seed were stored in different packages (Jute, Plastic and Polyethylene) for 18 months. The most important results can be summarized as follows: Increasing storage periods of wheat seed up to 18 months significantly affected storage efficacy, vitality and quality of wheat seed. The best results of storage efficacy of wheat recorded when seed stored in polyethylene packages, followed by seed stored in jute packages and lastly stored in plastic packages. Seed treated with copper nanoparticles were the best in germination percentage, electrical conductivity, acidity, protein percentage, carbohydrate percentage, relative density and 1000-seed weight. While treatment with malathion was the best in acidity, relative density, 1000- seed weight and insect infestation percentage. As for phosphine, it was the best in moisture percentage, insect infestation percentage and weight loss percentage. This study recommended that treated seed with copper nanoparticles before storage and stored it in polyethylene packages under the environmental conditions of the experiment in Sakha, Kafr EL-Sheikh, Egypt

Pedigree selection in two Egyptian cotton crosses for some traits

One cycle of direct Pedigree selection was performed with selection intensity 5 % to improve productivity with accepTable fiber quality of the two Egyptian cotton ( G. barbadense L.) cross combinations. Comparing mean performance of F2 with those of F3 generation revealed increased mean values for all traits with advanced generations from F2 to F3, indicating accumulation of increasing alleles. The phenotypic variance for all traits was highly significant through F2 and F3 generations. Heritability estimates in broad sense improved considerably for all traits from F2 to advanced F3 generations. The genotypic correlation between three earliness characters was highly significant negative with most yield traits in F2 pop. I. While genotypic correlation between the previous earliness traits with yield traits in F3 generation was positively non-significant except for lint percentage that was highly significant positive. Genotypic correlation was highly significant positive among most yield and yield component traits in both generations, which helps pedigree selection to achieve high fast genetic advance. The data of the genotypic correlation among studied characters in F2 and F3 generations in population II showed highly significant negative genotypic correlation between earliness traits in F2 generation, changed to highly significant positive in F3 generation after applying pedigree selection. The genotypic correlation between most yield characters and fiber properties showed highly significant positive correlation in population II in both generations. The superior ten families in F3 generation in both populations ranked on high yield, yield components and fiber quality showed higher means than that of F2, F3, better parent and check in most yield character

Pedigree selection in two Egyptian cotton crosses for some traits

One cycle of direct Pedigree selection was performed with selection intensity 5 % to improve productivity with accepTable fiber quality of the two Egyptian cotton ( G. barbadense L.) cross combinations. Comparing mean performance of F2 with those of F3 generation revealed increased mean values for all traits with advanced generations from F2 to F3, indicating accumulation of increasing alleles. The phenotypic variance for all traits was highly significant through F2 and F3 generations. Heritability estimates in broad sense improved considerably for all traits from F2 to advanced F3 generations. The genotypic correlation between three earliness characters was highly significant negative with most yield traits in F2 pop. I. While genotypic correlation between the previous earliness traits with yield traits in F3 generation was positively non-significant except for lint percentage that was highly significant positive. Genotypic correlation was highly significant positive among most yield and yield component traits in both generations, which helps pedigree selection to achieve high fast genetic advance. The data of the genotypic correlation among studied characters in F2 and F3 generations in population II showed highly significant negative genotypic correlation between earliness traits in F2 generation, changed to highly significant positive in F3 generation after applying pedigree selection. The genotypic correlation between most yield characters and fiber properties showed highly significant positive correlation in population II in both generations. The superior ten families in F3 generation in both populations ranked on high yield, yield components and fiber quality showed higher means than that of F2, F3, better parent and check in most yield character

The effectiveness of a proposed strategy in teaching mathematics on the development of numerical sense and skills of the twenty-first century for middle school students

هدف البحث إلى تحديد مدى فاعلية استراتيجية مقترحة قائمة على تراكيب كاغان في تدريس الرياضيات على تنمية مهارات الحس العددي ، ومهارات القرن الحادي والعشرين لدى طلاب الصف الأول المتوسط، وتكونت عينة البحث من (70) طالباً من طلاب الصف الأول المتوسط بمدرسة ابن رجب المتوسطة بالعزيزية الشمالية مكة المكرمة، حيث (35) طالباً يمثلون المجموعة التجريبية، (35) طالباً يمثلون المجموعة الضابطة، واستخدم الباحث أداتين تمثلت في اختبار مهارات الحس العددي (الحساب الذهني والتقدير، التحقق من معقولية الإجابة، إدراك الكم المطلق والنسبي للعدد، العلامة المميزة للعدد واستخداماتها)، مقياس مهارات القرن الحادي والعشرين، واستخدم الباحث الأساليب الإحصائية وفق برنامج SPSS v25 ، وأظهرت نتائج البحث أنه توجد فروق ذات دلالة إحصائية عند مستوى دلالة ( 0,01≥ α) بين متوسطي درجات طلاب المجموعتين التجريبية والضابطة في التطبيق البعدي لاختبار مهارات الحس العددي لصالح طلاب المجموعة التجريبية، إضافة إلي أنه توجد فروق ذات دلالة إحصائية عند مستوى دلالة ( 0,01≥ α) بين متوسطي درجات طلاب المجموعتين التجريبية والضابطة في التطبيق البعدي لمقياس مهارات القرن الحادي والعشرين ككل وكل مهارة على حده لصالح طلاب المجموعة التجريبية. . الكلمات المفتاحية: الاستراتيجية، هياكل كاغان، الحس العددي، مهارات القرن الحادي والعشرين.The aim of the research is to determine the effectiveness of a proposed strategy based on Kagan structures in teaching mathematics to develop numerical sense skills, and the skills of the twenty-first century among first-class middle school students. The sample consisted of (70) middle-grade first-grade students at Ibn Rajab middle School in Northern Azizia Makkah Al-Mukarramah, where (35) students representing the experimental group, (35) students representing the control group, and the researcher used two tools represented in testing numerical sense skills (mental calculation and estimation, checking the reasonableness of the answer, realizing the absolute and relative quantity of the number, the distinctive sign of the number and its uses A), 21st century skills scale, and the researcher used statistical methods according to the SPSS v25 program, and the results of the research showed that there are statistically significant differences at the level of significance (α≤0,01) between the mean scores of students of the experimental and control groups in the post-application to test sensory skills Numerical for the benefit of experimental group students, in addition to that there are statistically significant differences at the level of significance (α≤0,01) between the mean scores of students of the experimental groups and the control in the post application of the scale of the twenty-first century skills as a whole and each skill separately for the benefit of the experimental group students. . Key words: Strategy, Kagan structures, Numerical Sense, 21st Century Skills

A proposed program in light of the requirements of the Integrated Science Approach (STEM) to develop the professional and academic performance of secondary school science and mathematics teachers

 هدفت الدراسة الحالية إلى التعرف على فاعلية برنامج مقترح لتطوير الأداء المهني والأكاديمي لدى معلمي العلوم والرياضيات في ضوء مدخل التكامل بين العلوم والتكنولوجيا والهندسة والرياضيات(STEM)، وذلك من خلال إعداد قائمة بمتطلبات بناء برنامج مقترح لمعلمي العلوم والرياضيات في ضوء تعليم (STEM)، ومن ثم بناء البرنامج المقترح القائم على هذه المتطلبات، واستخدم الباحثان المنهج الوصفي التحليلي لوصف وتحليل البحوث والدراسات ذات الصلة بمشكلة الدراسة وإعداد التصور المقترح للبرنامج التدريبي، وتوصلت الدراسة إلى قائمة بمتطلبات التنمية المهنية والأكاديمية لدى معلمي العلوم والرياضيات في ضوء (STEM) مقسمة إلى أربع محاور أساسية، وتم في ضوء هذه المتطلبات بناء تصور مقترح للبرنامج، وتطبيق البرنامج من خلال بطاقة ملاحظة لمعرفة مدى فاعليته، وتوصلت الدراسة إلى وجود فروق ذات دلالة إحصائية عند مستوي ( 0.01≥ α) بين متوسطي درجات معلمي العلوم والرياضيات في التطبيقين البعدي والقبلي لبطاقة ملاحظة الأداء المهني والأكاديمي لمجموعة عينة الدراسة لصالح التطبيق البعدي. Abstract:The current study aimed to identify the effectiveness of a proposed program to develop the professional and academic performance of science and mathematics teachers in the light of the entrance to the integration between science, technology, engineering and mathematics (STEM), by preparing a list of requirements for building a proposed program for science and mathematics teachers in the light of STEM education, and from Then building the proposed program based on these requirements, and the researchers used the descriptive analytical approach to describe and analyze research and studies related to the study problem and prepare the proposed concept for the training program, and the study reached a list of professional and academic development requirements for science and mathematics teachers in the light of (STEM) divided into four main axes In light of these requirements, a proposed conceptualization of the program was built, and the program was implemented through a note card to know its effectiveness, and the study found that there are statistically significant differences at the level of (0.01≥ α) between the average scores of science and mathematics teachers in the post and pre-implementation applications of the professional performance note card And the academic of the study sample group in favor of the post application

Synthesis, Characterization, and Antiproliferative Activity of Cu²⁺, V(IV)O²⁺, Co²⁺, Mn²⁺, and Ni²⁺ Complexes with 3-(2-(4-Methoxyphenylcarbamothioyl)Hydrazinyl)-3-OXO-<i>N</i>-(Thiazol-2-yl)Propanamide against Human Breast Adenocarcinoma Cells

<div><p></p><p>3-(2-(4-methoxyphenylcarbamothioyl)hydrazinyl)-3-oxo-N-(thiazol-2-yl)propan-amide (H₄L) has been synthesized and its structure has been confirmed by elemental analysis, IR, mass, and ¹H and ¹³C NMR spectroscopy. This ligand has been used to synthesize complexes with Cu²⁺, V(IV)O²⁺, Co²⁺, Mn²⁺, and Ni²⁺. The structures of these complexes have been verified by elemental analyses, molar conductivities, magnetic measurements as well as UV–VIS, IR, ¹H-NMR spectroscopy. The IR spectra showed that H₄L acts as a uni-negative tetradentate or bidentate ligand. The molar conductance measurements proved that all complexes are nonelectrolytes except complexes <b>2</b> and <b>3</b>. Moreover, the metal complexes geometrical arrangements were square planar, tetrahedral, square-pyramidal, or octahedral. The structures are consistent with the IR, UV–VIS, ESR, as well as conductivity measurements. The antiproliferative activity of the synthesized complexes against human breast adenocarcinoma MCF-7 cell line showed exploited potent to moderate growth inhibitory activity, in particular complex <b>4</b> which exhibited superior potency to the reference drug cisplatin. The antitumor activity of these compounds was accompanied by significant increase in the activity of superoxide dismutase with concomitant decrease in the activities of catalase and glutathione peroxidase and reduced glutathione level. The overproduction of free radicals allowed reactive oxygen species-mediated tumor cells death.</p></div