Evolution and significance of unmanned aerial vehicles

Unmanned aerial vehicles (UAVs) are aerial systems controlled remotely or autonomously by astronauts. Massive advancements in electronics and information technology have prompted the popularity and growth of UAVs. As a result of the huge advances made in electronics and information technology, civilian tasks can now be accomplished with UAV in a more effective, efficient, and secure way. Known as a drone, UAVs are developed and operated using a variety of technologies such as machine learning, computer vision, artificial intelligence, and collision avoidance. Having become more affordable and accessible, drone technology has become more popular among civilians. Therefore, this technology is constantly evolving and can be used across a variety of fields. The application of drones makes a huge difference in the most demanding and complex industrial environments such as those in the mining industry, maritime, oil, gas, and seaports. The usage of drones is increasing among industrialists to improve and optimize processes, as well as to enhance operational efficiency in industrial process. This chapter discusses UAVs on a wide range of topics, including evolution and historical perspectives of UAV, taxonomy of UAV, significance of UAV to society and industry, and industrial and academic perspectives on UAV.

Dr H Shaheen Dr h shaheen

Effect of in-vitro differentiated bone marrow mesenchymal stem cells in the treatment of peripheral nerve injury in rats

Peripheral nerves are more prone to damage during trauma. Though nerve grafts are used as an alternative method in treating it, the results are purely ambiguous. One such modern approach to treat peripheral nerve injury is bone marrow differentiated neuronal cells. Our present aim is to study the effect of in-vitro differentiated bone marrow mesenchymal stem cells (BMSCs) in the treatment of peripheral nerve injury in rats. Six weeks old rat weighing 80 gm was used for isolation and culture of BMSCs. The second passage cells were taken for neuronal differentiation. Flow cytometry and immunocytochemistry were performed with Anti goat IgG antibody indirectly conjugated with FITC to express nestin. In vitro differentiated BMSC along with PLGA Scaffold is injected into the site of peripheral nerve injury and the results were studied by ENMG, microdissection, and histopathology. The cells were expressed with Nestin goat polyclonal antibody. At the end of the second week, the rat reveals increased amplitude (8.3 mv) with decreased latency (0.8 ms) of the peripheral nerve. Micro dissection confirms the neuronal continuity of the injured peripheral nerve. Histopathology distinctly exhibit increased myelination and decreased endoneuronal space. In conclusion, neuronal differentiated BMSC, regenerate peripheral nerve injury faster than conventional methods and can be applied as an alternate therapy in peripheral nerve repair.

Mediterranean Journal of Pharmacy and Pharmaceutical Sciences Mediterranean journal of pharmacy and pharmaceutical sciences

Antitussive effect of aerial parts of caesalpinia pulcherrima by sulphur dioxide induced cough in rats

Natural products have played an essential role in treating human diseases for thousands of years. According to WHO, 80% of the world’s population relies on traditional medicines to cure and prevent ailments. Numerous plants have been reported to have antitussive activity. Our present study aimed to evaluate the antitussive effect of aerial parts of ethanolic extract of Caesalpinia pulcherrima (Caesalpiniaceae) at 200 and 400 mg/kg doses in healthy albino rats. Caesalpinia pulcherrima is an ornamental plant, usually 3.7-4.3 m in height, known as Peacock flower and is used traditionally to treat cough, bronchitis and asthma. Cough significantly affects human health and is the most common reason to visit physicians. Cough may be produced due to disease, allergens, pollutants and respiratory infections. Any mechanical or inflammatory change provokes the afferent or sensory nerves in the larynx and tracheobronchial, resulting in a cough. In this study, cough was induced by using the sulphur dioxide induction method. Animals were divided into four groups of 7 animals each, and all the drugs were administered orally. Group I was a control group, while group II was a standard taking Prospane. The extract showed highly significant results at 200 and 400 mg/kg doses compared to the control. So, it proves and supports the traditional use of Caesalpinia pulcherrima to relieve cough.

Dr. Salman Ahmed Dr. salman ahmed

A study on work life balance of self employed women entrepreneurs in mangalore city

Increasing presence of women in economic pursuits like entrepreneurship activities is believed to be the result of development policies. This belief ignores the role of socioeconomic factors in the growth and development of women entrepreneurship. Many women entered the world of business and they have become successful entrepreneurs in various business activities. Women entrepreneurs in Dakshina Kannada district have set up business ventures in a range of industries. The study has been conducted to know the extent of problems faced in managing work and life by women entrepreneurs. Majority of the respondents started their business or service to become independent and to meet the financial needs of their family. From the study it has to be found that majority of the women find it difficult to manage their work and family and they are trying to overcome these difficulties by time management and with the help of their family members.

Thara S Shetty Thara s shetty

Effectiveness of differentiated instruction in the reading comprehension level of grade-11 senior high school students

This study determined the effectiveness of Differentiated Instruction in the reading comprehension level of the Grade-11 senior high school students, school year 2016-2017. Specifically, it aims to determine the reading comprehension level of the control and the experimental groups in the pre test and post-test; identify if there is a significant difference in the reading comprehension level of the control and experimental groups in the pre-test and post-test results; and identify the strengths and weaknesses in using Differentiated Instruction. Quasi-experimental method was employed in conducting the study. The respondents were the 150 Grade-11 students of a public high school grouped as control and experimental using Parallel technique. Data sources include pre-test and post-test scores, gain scores, classroom observation form, survey questionnaire, and researcher's reflective notes. The qualitative data were analysed using template analysis style and the basic approach of comprehending, synthesizing, theorizing and re-contextualizing to identify common themes and integrating thematic pieces. Based on the classroom observations, survey and researcher's reflective notes, strengths and weaknesses of Differentiated Instruction were observed. Despite the observed and encountered challenges, the statistical analysis has revealed a significant difference between pre-test and post-test results.

Darrel Ocampo Darrel ocampo

Prevalence of thrombocytopenia during pregnancy among libyan women

Thrombocytopenia is a recurrent hematological disturbance in pregnancy. In pregnant women with thrombocytopenia, the risk of excessive bleeding during or after child-birth is high, particularly when they require a cesarean section, other surgery during pregnancy, labor or in the puerperium period. The objective of this study was to assess the prevalence of thrombocytopenia among pregnant women attending antenatal care service at Tripoli University Hospital, Libya. A cross-sectional analysis was used to determine the prevalence thrombocytopenia in pregnant women attending prenatal care services from July to December, 2020 at Tripoli University Hospital. A structured pretested questionnaire was used to obtain socio-demographic data, nutritional factors, obstetrics and gynecological factors, history and clinical conditions. Venous blood samples were collected for platelet count and other platelet parameters, which determined by using Sysmex automation. A total of 72 participated women; about 40%, 35% and 259% of the participants were in the third, second and first trimester, respectively. The mean number of children that women have was 2, with 2.7% having just one child and 47% having three or more children. This study concluded that the prevalence of thrombocytopenia and mostly with mild form is 8.3% and as being greater among pregnant women living in rural areas. Health care providers should do thrombocytopenia test regularly for every pregnant woman in order to prevent excessive bleeding during pregnancy, especially whom living in rural areas.

Mediterranean Journal of Pharmacy and Pharmaceutical Sciences Mediterranean journal of pharmacy and pharmaceutical sciences

Artificial neural network with crow search algorithm for optimal sizing of photovoltaic system

The need for renewable energy sources in addressing global energy demands is growing, especially in Nigeria where electricity demand often exceeds supply. Solar photovoltaic (PV) systems have become a viable solution, with federal universities in Nigeria, as major electricity consumers, recognizing their potential. However, determining the right size of PV systems for individual faculties within these universities is a complex task. This study attempted to simplify this process by introducing an innovative approach to size PV systems in these faculties. The research method used the Extended Kalman Artificial Neural Network (EKF-ANN) and the Crow Search Algorithm (CSA) to enhance the accuracy of PV system sizing. Data was collected on the study site, load demand, weather conditions, system components, and operational control and systems models to establish sizing criteria. The study focused on the optimal size of a solar PV system at the Faculty of Law building, University of Port-Harcourt, and how to improve its accuracy. The results showed that using global solar insolation parameters, EKF-ANN predicted values for global temperature, flock size, and maximal iteration. This optimized system could generate surplus power for effective grid supply. The study found that the optimal size of the series-connected panels for the Faculty of Law building was 96, 83, 73, and 65 units, with corresponding insolation values ranging from 3.737 to 4.368 kW/m2. It was concluded that the combination of CSA and EKF-ANN in solar PV sizing is suitable for achieving optimal outcomes for energy storage and grid supply. Nonetheless, the study recommended additional investigation into real-time and grid-connected solutions to enhance the proposed approach's effectiveness.

FXintegrity Publishing Fxintegrity publishing

Relationship between culture and gender inequality in india

This paper throws light on the role played by culture and traditions specifically of Hindu religion in legitimising the subordinate position of women in Indian society. Along with presenting a brief account on the status of women from ancient times to contemporary situation, the sex-gender binary has also been explored. How a child after his birth socialised to behave in a certain way on the basis of his/her sex has been noted. This process of socialisation is based on the age old customs and traditions which are discriminatory in nature. The male child is taught to be strong, dominating and aggressive in nature and henceforth assigned laborious work to do for managing the finances of house. On the other hand, female child is taught to be sensitive, loving and caring and therefore assigned to manage household work, child nurturing and motherhood related responsibilities.

Swati sharma

“screening of semicarbazones as anticonvulsant agents

ABSTRACT- Objective- The principal objective of the present investigation was the preparation of several analogs to further evaluate the binding site hypothesis. Aryl semicarbazides have also been reported to display excellent anticonvulsant activity in mice and rats. Method- In this project, the synthesis of semicarbazone derivatives was carried out. All molecules were synthesized using the common starting material –aniline. In all compounds, an intermediate was first formed by substituted phenyl urea using substituted aniline and potassium cyanate, and then it was hydrolyzed to get substituted phenyl semicarbazide, which was directly coupled with ketones. All the synthesized compounds were biologically screened for their anticonvulsant activity by the MES method. Result- Standard error mean was calculated concerning standard and control drug, Phenytoin sodium (25mg/kg.) and DMSO. The synthesized semicarbazone was characterized by using IR Spectroscopy. One another representative molecule compound was characterized using 1H NMR Spectroscopy. Conclusion- It can be concluded that designed semicarbazones were synthesized and characterized successfully. After synthesis of designed semicarbazones compounds were evaluated for anticonvulsant activity. Finally, two compounds have shown better activity in comparison to the other molecules.

Ajay garg

Obsessive compulsive disorder symptom exacerbation during covid-19 related lockdown managed with homoeopathy: a case report

Background: Obsessive compulsive disorder (OCD) is one of the most personally distressing, and disabling psychiatric condition. COVID 19 pandemic and country wide lockdown are likely to exacerbate the symptoms in diagnosed cases of OCD. Homoeopathy, an established system of medicine with potential relevance to mental health issues has a sparse literature in management of OCD. Objectives: The primary purpose of this case report is to point out the usefulness of Individualized homoeopathic medicine in treatment of OCD. The secondary purpose is to highlight the utility of similimum in the management of exacerbation of psychiatric conditions due to stressful life situations. Methods: A case of OCD reported in Psychiatry out Patient Unit treated by Classical Homoeopathy is presented in this case report. The case was assessed at baseline and follow up visits with Yale Brown Obsessive Compulsive Scale (Y-BOCS). Results: Baseline Y-BOCS score of 24 (Severe OCD) turned gradually to subclinical range of seven within 6 months. Patient had excellent relief for next six months and was functionally well. A comparatively milder exacerbation of symptoms (Y-BOCS-17) during lockdown could be managed effectively with the repetition of similimum resulting in subclinical score of five quickly within a month. Conclusion: Homoeopathic medicine is useful in the management of OCD and also symptom exacerbation due to stressful life events like lockdown.

Dr deepthi gilla

Standardization of artificial diet for the mass rearing of helicoverpa armigera

Experiment was carried out to standardize the artificial diet for mass rearing of Helicoverpa armigera (Hübner) under laboratory conditions. The average length and breadth of egg was 0.51±0.06 mm, 0.46±0.37 mm and 0.52±0.03 mm, 0.48±0.62 on artificial and natural diet. The average length and breadth of first, second, third, fourth and fifth instar larvae was 1.40±0.09 mm, 0.46±0.02 mm and 1.42±0.01 mm, 0.47±0.16 mm and 4.03±0.22 mm, 0.66±0.07 mm and 4.31±0.01 mm, 0.89±0.25 mm and 8.19±0.36 mm, 1.57±0.63 mm, and 10.29±0.72 mm, 1.87±0.91 mm and 18.70±0.44 mm, 2.78±0.040 mm and 20.15±0.03 mm, 3.17±0.55 mm and 26.01±0.19 mm, 4.09±0.39 mm and 27.32±0.027 mm, 5.88±0.69 mm, respectively with the average duration of 2.69±0.32 and 2.54±0.29, 3.77±0.65 and 3.79±0.11, 3.88±0.49 and 3.72±1.23, 5.35±0.55 and 5.72±0.91 and 6.61±0.008, 6.46±1.07 days, respectively on artificial as well as on natural diet. The average length and breadth of adult male and female was 18.01±0.48 mm and 35.09±1.25 mm, 18.51±1.04 mm and 38.11±1.37 mm, 19.00±0.18 mm and 19.10±0.49 mm, 37.75±1.27 mm and 41.23±1.69 mm, respectively. The average pre-oviposition, oviposition and post-oviposition period was 2.52±0.86 and 2.76±0.84 days, 4.93±0.78 and 5.08±0.90 days and 0.65±0.49 and 0.79±0.93 days, respectively. The total life cycle of male and female was 40.50±2.29 and 41.81±1.89 days and 42.59±1.77 and 43.80±1.93 days.

DR. BABU LAL JAT Dr. babu lal jat

Hematological and histological effect of fractionated neem leaf extract in healthy wistar rats

Introduction: In recent years, the growing research towards new drugs has been targeted on plant-based drugs, and Neem (Azadirachta indica) is one of the plants that have been extensively researched for its diverse medicinal properties. The study aimed to determine the effects of neem on the hematological parameters (total white blood cells, neutrophil, monocyte and eosinophil counts) and histology of some organs of rats. Methods: Fifteen healthy male Wister rats divided into control (Nm0) and experimental groups (Nm11 and Nm22). Control group 1 (Nm0) was given 100mg/200g body weight of normal saline orally twice daily; experimental group 2 (Nm11), 100mg/200g body weight neem extract twice daily for 11 days and experimental group 3 (Nm22), 100mg/200g neem leaf extract twice daily for 22 days. Total number of white blood cells (WBC), lymphocytes, neutrophils, monocytes and eosinophils, packed cell volumes (PCV) and histological changes in the spleen, liver and kidneys were evaluated. Results: There were no significant differences in mean values of the hematological parameters (total WBC; PCV; neutrophils, lymphocytes, monocytes and eosinophils). We observed the central vacuolation and accumulation of lymphocytes in the spleen, hypertrophy of the central vein in the liver and shrinking of the glomeruli and accumulation of the lymphocytes in the kidney using hematoxylin and eosin staining following prolonged administration of neem extract (Nm22). Conclusion: Prolonged administration of neem affected the histology of some organs of the rats more than the hematological parameters

Emmanuel umegbolu

Library knowledge: the nigerian student perspective

This paper examines Nigerian students’ perception or approach to libraries. It cuts across the primary, secondary and tertiary institutions. The reason for the laxity in library real time usage is the primary driving force that led to the research. The research method adopted for this study was longitudinal method to get the right place of the actual issues without official cover-ups where necessary. Secondary data were also used to buttress the position of the research. The population approached for the longitudinal method was randomly picked at the different levels of schools. Parents were also in place at some point to drive home the true intent they have about their children and the use of libraries. Findings revealed that seeming laxity of both undergraduate and graduate students’ perception and attitude about the library is primarily because of the lacuna in their other levels of education before coming to the university. This served as a useful yard stick for the researchers developing workable recommendations that in their opinion will be of immense help to solving it. Index Terms— Library Knowledge, Nigerian Student, Primary School Library, Secondary School Library, Tertiary Library.

Emmanuel Musa Emmanuel musa

The future of pharmacy in libya

One must accept the complexity of modern society as a multifaceted influence which will direct the future of all social organizations. Technology has brought the people of the world into almost instant communication. Biomedical science has conquered most infectious, acute diseases and has provided several medicines for a successful maintenance therapy of chronic diseases. The life style of some people as smoking and drug addiction remain a strong factor to their achievement of health goals of the good life. Universally, economic inflation and international business have created an economic interdependence among nations and dealing of the economic problems of one country must take into account this interdependence. When one views the future within this technologic-social-economic framework, he has difficulty sorting out certain directing influences that may shape the future of pharmacy practice in Libya. Currently, the duties, functions and roles undertaken by pharmacists in Libya range from those limited to traditional dispensing duties to highly clinically oriented roles [1]. In this regard, the Libyan health service providers request for the expanded roles of pharmacists in the society. Many of them ask for a number of clinical and patient-oriented functions as oncology, patient counseling, chronic care, hypertension, pediatric, diabetes, psychiatric, cardiology and others. They also question for protocols, standing orders and procedures for pharmacist management of drug therapy and provide information to use as a basis for initiation of clinically oriented services. The treatment of chronic diseases will be refined and drug therapy in many instances will be improved through the application of pharmacokinetic principles and improved methods of monitoring. There is no doubt that pharmacy practice has made clear steps in its own professionalization in hospitals during the past years. With an increase in the number of pharmacists practicing in hospitals and drug stores has come other changes in pharmacy manpower. Technicians and assistant pharmacists now perform many of the routine tasks in drug distribution under pharmacist's supervision. The latter, therefore, is available to participate in clinical programs in inpatient areas and in outpatient clinics. The practice of technicians and assistant pharmacists both in and out of hospitals remains a controversial issue in Libya (absence of a clear national medical policy). Many pharmacists in Libya who provide services hold Bachelor degree in Pharmacy or Pharmaceutical Sciences or Doctor of Pharmacy (Pharm D) or have completed a short or long term diploma training in teaching hospitals or postgraduate academics. Some hold appointments in other health professions institutions. Libyan Association for Pharmacists (LAP) and Libyan Medical Board are currently planning for a program in clinical pharmacy in different clinical branches. Nevertheless, professional pharmacy personnel must be upgraded in the future in both educational background and competence if continued professionalization is to be achieved [2]. The future will see continued stratification of professional personnel according to specialized functions in management and clinical and other professional; services particularly in large hospitals. The scope of the educational function of pharmacy will expand and become an increasingly important activity in the future in Libya. Some hospitals will maintain health education facilities as part of their physical plant. Others will participate in the program of area health education centers. Pharmacy's responsibility in this effort will require not only an increased commitment, but likewise, increased capability and capacity to provide educational services.

Mediterranean Journal of Pharmacy and Pharmaceutical Sciences Mediterranean journal of pharmacy and pharmaceutical sciences

Adaptive speed controller for micro gas turbine systems using evolutionary search based on genetic algorithms

Micro Gas Turbines (MGTs) are compact power generation systems that offer several advantages such as highpower density, low emissions, and fuel flexibility. They are commonly used in remote areas where grid connectivity is limited or unreliable. However, MGTs suffer from inherent instability issues due to their small size and high rotational speeds. These instabilities can lead to irregular speed responses, affecting the overall performance and reliability of the system. To address these concerns, the researchers utilized a genetic algorithm (GA)-based approach and conducted sensitivity studies to analyze the iteration parameter of the GA and its impact on the speed response of the MGTs. To evaluate the performance of the developed solution, they employed the Mean Step of Absolute Speed Error (MSASE) evaluation metric and compared the outcomes of the proposed strategy with a baseline Proportional Integral (PI)-only solution. The results demonstrated that the proposed solution surpassed the baseline approach by delivering a superior error response. Similarly, the findings suggested that the optimal iteration parameter setting for the GA was a maximum of 30 compared to 20 and 10 consequently lessening the settling time from 140s to 60s. Accordingly, the researchers concluded that optimizing the GA's iteration parameter could lead to enhanced stability in the speed response of the MGT units. Subsequently, this can bolster the power generation capacities of the units, highlighting the potential for enhanced efficiency and stability in MGT operations. As a final recommendation, the study advised practitioners working with MGTs to adopt the proposed GA-based speed control strategy to optimize the overall performance and reliability of these units.

FXintegrity Publishing Fxintegrity publishing

Implementasi model pembelajaran take and give pada mata pelajaran ips kelas v di mi ar-rahim arjasa

This research is the result of research that describes the implementation of the Take and Give learning model in the fifth grade social studies subject at MI Ar-Rahim, Arjasa, Jember. The learning process includes 3 stages, namely the planning, implementation, and evaluation stages. This research aims to answer. Based on the background described above, the formulation of the problems in this study are: 1. How is the preparation in implementing the Take and learning model for class V social studies subjects at MI Ar-Rahim, Arjasa District, Jember Regency? 2. What is the process of implementing the Take and Give learning model for the fifth grade social studies subject at MI Ar-Rahim, Arjasa District, Jember Regency? 3. How is the evaluation in implementing the Take and Give learning model for the fifth grade social studies subject at MI Ar-Rahim, Arjasa District, Jember Regency? The research method used is descriptive qualitative with data collection techniques using observation, interviews and documentation. The data sources in this study were the Principal, Teachers and Grade V Students of Class V Social Studies at MI Ar-Rahim, and other supporting documents. The results of this study indicate: 1. The implementation of the Take and Give learning model in the preparation stage has fulfilled all preparations well. 2. The process of implementing learning in class makes the learning atmosphere fun and students become more active. 3. At the evaluation stage all students have reached the assessment criteria in 3 aspects of the assessment, namely attitudes, knowledge and skills Penelitian ini adalah hasil penelitian yang menggambarkan tentang implementasi model pembelajaran Take and Give pada mata pelajaran IPS kelas V di MI Ar-Rahim Kecamatan Arjasa Kabupaten Jember. Proses pembelajaran tersebut meliputi 3 tahap, yaitu tahap perencanaan, pelaksanaan, dan evaluasi. Adapun penelitian ini bertujuan untuk menjawab Berdasarkan latar belakang yang telah dipaparkan di atas, maka rumusan masalah dalam penelitian ini adalah: 1. Bagaimana persiapan dalam mengimplementasikan model pembelajaran Take and mata pelajaran IPS kelas V di MI Ar-Rahim Kecamatan Arjasa Kabupaten Jember? 2. Bagaimana proses dalam implementasi model pembelajaran Take and Givemata pelajaran IPS kelas V di MI Ar-Rahim Kecamatan Arjasa Kabupaten Jember? 3. Bagaimana evaluasi dalam mengimplementasikan model pembelajaran Take and Givemata pelajaran IPS kelas V di MI Ar-Rahim Kecamatan Arjasa Kabupaten Jember? Metode penelitian yang digunakan adalah kualitatif deskriptif dengan teknik pengumpulan data menggunakan observasi, wawancara dan dokumentasi. Adapun sumber data dalam penelitian ini adalah Kepala Sekolah, Guru dan Peserta didik kelas V mata pelajaran IPS kelas V di MI Ar-Rahim, dan dokumen penunjang lainnya. Hasil penelitian inimenunjukkan: 1. Implementasi model pembelajaran Take and Give pada tahap persiapan sudah memenuhi segala persiapan dengan baik. 2. Proses pelaksanaan pembelajaran dikelas membuat suasana belajar menjadi menyenangkan dan peserta didik menjadi lebih aktif. 3. Pada tahap evaluasi semua peserta didik telah mencapai kriteria penilaian dalam 3 aspek penilaian yaitu sikap, pengetahuan dan keterampilan.

EDUCARE: Journal of Primary Education Educare: journal of primary education

An improved scheme for organizing ecommercebased websites using semantic web mining

In the running of the Internet world, Ecommerce industry has its own benchmark in terms of its rapid growth and has made itself an established sector that is indispensable for every industry to trade and do transactions online. As the world is rushing in a rapid manner, India is slogging in the improvisation of the online market, leading to the lack of customized needs of the customers. Bigger companies are trying to put in a different strategic approach taking that into consideration an approach of blended emining along with ecommerce has been devised. It would be a design of the semanticand neuralbased page ranking algorithm [2]. This tool upon launching would be a welldefined approach for ecommerce website ranking [1]. It would also facilitate the customers to find the relevant websites on the top of the page during their search for any particular product orbusiness. It would be further customized with all the relevant comparison of the other websites in terms of the product quality and price.

Dr H Shaheen Dr h shaheen

Online assessment of primary students’ cognitive, psychomotor, and affective domains: practices from urban and rural primary schools in indonesia

This study intends to describe assessment strategies for young students' online learning. The participants in this descriptive qualitative study were 15 primary school principals and 35 teachers teaching Years 4 and 5 in urban and rural schools on the island of Lombok, West Nusa Tenggara Province, who volunteered their participation after undergoing comparable procedures. Using operational concepts of assessment of learning for online learning, class observation, and interview were organized. The content and structure validity of the measures were evaluated in accordance with the developmental periods of young learners. The findings showed that the teachers assessed the primary students' cognitive, psychomotor, and affective domains interactively during the online class meetings, in their portfolio, and through attitude direct observation. Several assessment strategies were advocated to circumvent the shortcomings of online learning. A criterion-referenced evaluation was used to conduct the analysis. The theoretical implications of the findings suggest that the various assessment procedures adopted have decreased the negative washback of online exams; however, further research is required to determine the consistency of the outcomes of online tests with other types of evaluation.

Darrel Ocampo Darrel ocampo

Dr gedam kamalakar cv

Dr. G. Kamalakar, Pursuing Post-Doctoral Fellow ICSSR, Research Assistant, ICSSR Major Research Project, Department of History, Dr. B.R. Ambedkar Open University. with a Ph.D in Political Science. He is awarded Doctorate by the Osmania University, Hyderabad, for the thesis on “WTO and GATS: Implication for the Indian Higher Education”. He is the recipient of RGNF Fellowship from the UGC and Pre-Doctoral Fellowship from OUCIP. He worked as a guest faculty at City College, Hyderabad and as a Counselor at Ambedkar Open University. He has written 3 books and edited 4 books and also published research articles in 17 UGC care list Journals. He also reviewed 11 Books and published them in UGC care list journals and sage publications. He received 7 awards including Amazing Grace Award, Pride India Award, Dr.B.R. Ambedkar Excellency Award, International Research Excellence Award, Dr. A.P.J. Abdul Kalam Life Time Achievement National Award, National best Teacher Award and Vidya Bharati Award. He presented research papers in more than 24 International, National Conferences and seminars. He has published thematic research papers in 13 National and 30 International Level Peer Reviewed / Refereed Research Journals He is also the Assistant Editor to an International journal and a Member of Editorial board & Reviewer for National and International journals published from 20 countries like USA, Turkey, Syria, UK, Pakistan, China etc. and has membership in 4 various associations.

Dr Gedam Kamalakar Dr gedam kamalakar

Surface modification of anhydrous borax with stearic acid by wet coating method

The wet coating of anhydrous borax powders with stearic acid (SA) to reverse their inherent hydrophilic surface properties was investigated. The coating procedure was based on the results from a previous study that revealed that the stearic acid solution (2 wt. % SA) mixed for 60 minute at 750 rpm on the magnetic stirrer was sufficient for the surface modification of anhydrous borax. For the experiments, stearic acid powders were first dissolved in water at 80 °C. The mixture obtained by adding anhydrous borax powders to this solution was vigorously mixed on a magnetic stirrer to initiation and completion the surface modification. Each of these solutions was then filtered using a filter paper to separate the undissolved particles, and the residue on paper was dried at 50 °C for 48 h until constant weighing was obtained. Wettability has been accepted as a key parameter for success in wet coating treatment. This parameter gained via the experimental characterization technique was used for an evaluation of the powder properties. The degree of wettability of anhydrous borax powders was measured and compared both after their surfaces were coated with stearic acid and after they were treated with water for a certain period of time in an aqueous environment. The stearic acid coating made the powder hydrophobic and this property was highly preserved after washing.

Journal of Characterization Journal of characterization

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