bluuebunny/crossref_metadata_2025 huggingface dataset:
Solving the lignin waste crisis: Utilization of lignin to produce value- added antioxidant agents
Authors: Feras Mosleh Almowalad Feras Mosleh Almowalad
Published: January 2022

Lignin is a major component of biomass that is considered a huge energy and carbon reserve. Aside from being the second most abundant polymer in nature, it is a major by- product of pulping, paper and other forestry- based industries with about 70 million tons per year. Due to it being highly biologically recalcitrant, lignin is underutilized and considered a waste product that is solely incinerated for power generation. Establishment of a market for lignin- based, value- added chemicals was a necessity. Because of its renewable nature, availability, and richness in phenolic component, however, it is considered as an attractive alternative for antioxidant activity. In our research, all types of extracted lignin exhibited a value ranging from 2.21 to 11.47 on the AAI assay suggesting high antioxidant activity. Furthermore, special chemical structures such as hydrogen atoms, double bonds between side chain carbons, as well as the presence of methoxyl groups can increase antioxidant activity by 2- 3 folds via means of radical scavenging. Finally, lignin extracted at higher temperature (~95C and greater) exhibited higher ORAC values compared to lignin extracted at lower temperature; ORAC values of 1072.32 to 3119.68 versus 1741.72 to 1745.11, respectively. This paper is going to shed more light on the lignin antioxidant properties, where it stems from, what affects it, as well as future directions and possible interdisciplinary potential improvement.
Simulating NACA Equations Used in Optimizing Wind Turbine Blade Design
Authors: Suzanne Ahmad Radwan Masri, Kheir Eddine Tarsha Kurdi, Ahmad Suzanne Ahmad Radwan Masri, Kheir Eddine Tarsha Kurdi, Ahmad
Published: January 2022

Aerodynamic scientists are interested in geometry definition and possible geometric shapes that would be useful in design. This paper illustrates a simulation of a NACA four digits airfoil blade profile using MATLAB. As airfoil design became more sophisticated, this basic approach has been modified to include additional variables, and suggestions for the chord line length at the root and at the end of the blade. as well as changes in the twisting angle of the blade and its thickness, this helps to reduce the weight of the blade significantly Simulating NACA equations is very useful in obtaining coordinates of airfoil curvature for the whole series of NACA four digits, which is very effective in optimizing blade design. In order to get an optimal operating performance and high efficiency for the airfoil, the blade surface must be smooth and does not suffer any discontinuities or undefined cases, which cause separation of the boundary layer during the airflow, and get as a result great energy losses. Therefore, the conditions for the continuity of the blade was extracted using mathematical analysis, so the air flow does not suffer any interruptions which reduce the efficiency. This enable us to determine the locations of the maximum thickness of the blade sections on the chord along the blade, in addition to specifying conditions for the chord line length at the root and at the end of the blade which keep the blade curvature continuous and doesn’t have any irregular points, which also facilities writing the necessary programs.
Comparison between the different Artificial Neural Network (ANN) accuracy in diagnosis of asthma
Authors: Hanein O. Mohamed Shreif, Basma F. Idris Hanein O. Mohamed Shreif, Basma F. Idris
Published: January 2022

Asthma is a chronic disease that is caused by inflammation of airways. Diagnosis, predication and classification of asthmatic are one of the major attractive areas of research for decades by using different and recent techniques, however the main problem of asthma is misdiagnosis. This paper simplifies and compare between different Artificial Neural Network techniques used to solve this problem by using different algorithms to getting a high level of accuracyin diagnosis, prediction, and classification of asthma like: (data mining algorithms, machine learning algorithms, deep machine learning algorithms), depending and passing through three stages: data acquisition, feature extracting, data classification. According to the comparison of different techniques the high accuracy achieved by ANN was (98.85%), and the low accuracy of it was (80%), despite of the accuracy achieved by Support Vector Machine (SVM) was (86%) when used Mel Frequency Cepstral Coefficient MFCC for feature extraction, while the accuracy was (99.34%) when used Relief for extracting feature. Based in our comparison we recommend that if the researchers used the same techniques they should to return to previous studies it to get high accuracy.
PENINGKATAN HASIL BELAJAR SISWA MENGGUNAKAN MODEL PEMBELAJARAN KOOPERATIF TIPE NUMBERED HEAD TOGETHER
Authors: Hamdani Ibnu Mansyur
Published: January 2022

Pelajaran matematika merupakan pelajaran yang masih dianggap sulit bagi siswa. Hal ini dapat ditinjau dari hasil belajar matematika siswa yang masih rendah. Rendahnya hasil belajar disebabkan oleh pemilihan metode pembelajaran yang kurang tepat. Salah satu cara untuk menanggulangi permasalahan tersebut adalah menggunakan model pembelajaran yang melibatkan peran siswa secara aktif dalam proses belajar mengajar. Model yang mampu melibatkan peran siswa secara aktif adalah model peembelajaran kooperatif, salah satunya adalah tipe Numbered Head Together (NHT). Model dengan tipe NHT mengutamakan adanya kelompok-kelompok dengan anggota yang memiliki tingkat kemampuan yang berbeda-beda. Penelitian ini dilakukan pada siswa kelas VIIIA SMP Kartika XX-2 Wirabuana Makassar. Faktor utama yang menjadi perhatian untuk diselidiki adalah nilai harian siswa, kemampuan siswa, dan hasil tes siswa. Penerapan model NHT dilaksanakan dalam 2 siklus, di mana setiap siklus memiliki 4 tahap. Tahap tersebut adalah perencanaan, aksi, observasi, dan refleksi. Hasil observasi pada siklus 2 menunjukkan perubahan yang positif pada siswa. Perubahan tersebut dilihat dari segi prestasi, interaksi, sikap, dan kemampuan siswa dalam menyelesaikan soal matematika secara individu sebagai dampak positif  terhadap hasil belajar kelompok. Skor rata-rata hasil belajar matematika meningkat, yaitu 82,14 dan berada pada kategori tinggi dengan persentase ketuntasan sebesar 86,48%.
Kinerja Algoritma Optimasi Root-Mean-Square Propagation dan Stochastic Gradient Descent pada Klasifikasi Pneumonia Covid-19 Menggunakan CNN
Authors: Nugroho Budi , Puspaningrum Eva Yulia , Munir M. Syahrul
Published: January 2022

Penelitian ini berkaitan dengan proses klasifikasi Pneumonia Covid-19 (radang paru-paru atau pneumonia yang disebabkan oleh virus corona SARS-CoV-2) dari citra hasil foto rontgen / x-ray paru-paru dengan menggunakan pendekatan pembelajaran mesin. Klasifikasi dilakukan untuk menentukan apakah kondisi paru-paru seseorang mengalami Pneumonia Covid-19, Pneumonia biasa, atau Normal / Sehat. Untuk menghasilkan kinerja klasifikasi yang lebih baik, proses optimasi seringkali digunakan pada tahap pelatihan data. Banyak teknik yang digunakan untuk melakukan optimasi tersebut, diantaranya adalah algoritma Root-Mean-Square Propagation (RMSprop) dan Stochastic Gradient Descent (SGD). Pada penelitian ini, pengujian dilakukan terhadap kedua metode tersebut untuk mengetahui kinerjanya pada klasifikasi Pneumonia Covid-19. Metode klasifikasi menggunakan Convolutional Neural Network (CNN) yang menerapkan 5 layer konvolusi dengan nilai filter 16, 32, 64, 128, dan 256. Proses pelatihan menggunakan 3.900 citra yang terdiri atas 1.300 citra pneumonia covid-19, 1.300 citra pneumonia, dan 1.300 citra normal. Sedangkan proses validasi menggunakan 450 citra dan proses pengujian mengunakan 225 citra. Berdasarkan uji coba yang telah dilakukan, implementasi algoritma optimasi RMSprop menghasilkan akurasi 87,99%, presisi 0,88, recall 0,86, dan f1 score 0,87. Sedangkan implementasi algoritma optimasi SGD menghasilkan akurasi 66,22%, presisi 0,69, recall 0,64, dan f1 score 0,67. Hasil ini memberikan informasi penting bahwa algoritma optimasi RMSprop menghasilkan kinerja yang jauh lebih baik daripada SGD pada klasifikasi Pneumonia Covid-19.
Complex Energies and Transition-Dipoles for the Uracil anion Shape-type Resonances from stabilization curves via Padé
Authors: Bouskila Gal , Landau Arie , Haritan Idan , Moiseyev Nimrod , Bhattacharya Debarati
Published: January 2022

Absorption of slow moving electrons by neutral ground state nucleobases have been known to produce resonance, metastable, states. There are indications that such metastable states may play a key-role in DNA/RNA damage. Therefore, herein, we present an ab-initio, non-Hermitian investigation of the resonance positions and decay rates of the low lying shape-type states of the uracil anion. In addition, we calculate the complex transition dipoles between these resonance states. We employ the resonance via Padé (RVP) method to calculate these complex properties from real stabilization curves by analytical dilation into the complex plane. This method has al-ready been successfully applied to many small molecular systems and herein we present the first application of RVP to a medium-size system. The presented resonance energies are converged with respect to the size of the basis set and compared with previous theoretical works and experimental findings. Complex transition dipoles between the shape-type resonances are computed using the energy-converged basis set. The ability to calculate ab-initio energies and lifetimes of biologically relevant systems opens the door for studying reactions of such systems in which autoionization takes place. While the ability to also calculate their complex transition dipoles open the door for studying photo induced dynamics of such biological molecules.
PROMOTION OF ORGANIC AND SUSTAINABLE AGRICULTURE THROUGH THE USE OF BIO-FERTILIZERS
Authors: Kc Barsha , Pandey Bidhya , Chand Himani , Bhusal Prashamsa , Pandit Sukriti , Khanal Saugat
Published: January 2022

Tamarind (Tamarindus indica) belongs to the family Leguminosae. It is commonly growing in tropical and subtropical regions now and is one of the most important plant resources as cuisine materials. Antioxidative activity of tamarind seeds was investigated. An ethanol extract prepared from the seed coat contained antioxidative activity as measured by the thiocyanate and thiobarbituric acid (TBA) method. Essential oils are highly odorous droplets found in minimal quantities in the flowers, stems, leaves, roots and barks of aromatic plants. They are not recognized as true oils as the vegetable oils, but highly fluid and volatile. Experts recognize an essential oil by its aroma and test the oil characteristics such as vaporization and crystallization point using Differential Scanning Calorimetry (DSC). DSC has emerged as a powerful experimental technique for determining thermodynamic properties of biomacromolecules. Volatile components of tamarind leaves and seed locally grown will be isolated by Microwave Assisted Extraction (MAE). The presence of essential oil as the volatile components will be investigated to determine whether this method is effective or not to extract the oil from tamarind leaves and seed. The parameters that will be measured are the time for the oil droplets formation and the optimum temperature for the extraction of oil. At the end of the extraction, amber color oil was obtained. Results showed that the time for the oil droplets formation increasing with the increasing weight of sample for both tamarind leaves and seed samples. The optimum temperature for the extraction obtained was 125ºC with the yield of 1.2 mL of seed oil. The vaporization and crystallization point of oil are presented in the DSC curve and the specific heat capacity of the oil are calculated.
APPRAISAL OF PER CAPITA CONSUMPTION OF CHARCOAL AND FIREWOOD AS AN ALTERNATIVE ENERGY SOURCES FOR DOMESTIC USAGE IN KEFFI NASARAWA STATE NIGERIA
Authors: Sufiyan Ibrahim , K.D Muhammad , Musa U Umar
Published: January 2022

The simple way to utilized forest resources is to make use of their by-products (firewood and charcoal) in our households. Africa suffered a great deal of energy supply. Nigeria has limited electricity supply in recent years. Gas, kerosene and LNG are exorbitant that poor people cannot afford. The rate of poverty increases especially in a mostly rural community in Nigeria as well as Africa due to bad leadership that common people have no resources to depend on except forest resources where women and children go to bushes. This study assesses the per capita consumption of both the firewood and charcoal daily, weekly, monthly and annually. The rates of consumption determine the usage of fuelwood. The regression analyses were employed to statistically verify the rate of fuelwood consumption. The result indicates that there are high rates of consumption per capita per day (charcoal 0.20kg, firewood 0.09kg), per capita per week charcoal 9.9kg, firewood 4.48kg), per capita per month ( charcoal 181.9kg; firewood 82.5kg) and charcoal 26,937kg firewood 12,042kg). This indicates that people are highly destroying forest daily and alter the natural system of the environment for the sake of fuelwood consumption.
EFFECT OF FOLIAR APPLICATION OF VERMIWASH ON GROWTH AND QUALITY OF BRINJAL
Authors: Yasmin M. , Rahman M.S. , Rahman M.A. , Shikha F.S. , Alam M.K.
Published: January 2022

The experiment was conducted at Regional Agricultural Research Station (RARS), Jamalpur, Bangladesh during the period of 2019-2020 and 2020-2021 to investigate the effect of vermiwash on growth, yield and quality of brinjal and to find out suitable foliar dose of vermiwash for optimizing the yield of brinjal. There were five treatments comprising T1= Chemical fertilizer (CF) + foliar spray of distilled water (control), T2 = CF + foliar spray of 10% vermiwash, T3 = CF + foliar spray of 20% vermiwash, T4 = CF + foliar spray of 30% vermiwash and T5= CF + foliar spray of 40% vermiwash. Results revealed that, vermiwash treated brinjal plants showed better growth and yield parameters than the control plants. The highest average brinjal fruit yield (29.99 t ha-1) was found in T3 treatment i.e., foliar spray of 20% concentration of vermiwash and the lowest (26.35 t ha-1) came from control. On the other hand, nutritional quality (moisture content, TSS, β carotene and nutrient content) were seen to be higher in vermiwash treated treatment compared to control treatment. The study suggests that, 20% concentration of vermiwash could be used as effective foliar spray for eco-friendly and higher yield of brinjal.
AZOLLA: POTENTIAL BIOFERTILIZER FOR INCREASING RICE PRODUCTIVITY, AND GOVERNMENT POLICY FOR IMPLEMENTATION
Authors: Thapa Parbati , Poudel Kabita
Published: January 2022

Rice is the staple food for the significant population of Asia. Due to projected population growth in this region, the demand for this food is also predicted to be increased exponentially soon. Nitrogen (N) plays a dominant role in increasing rice yield as it is the most critical yield-limiting nutrient of rice. Chemical N fertilizers which are a major source in supplying N nutrients to rice, have adverse effects on overall soil and environmental health in the long term. The application of free-floating aquatic fern Azolla as a biofertilizer can be an alternative to improve rice yield without degrading the environment. It provides a natural source of many nutrients, especially N, improves the availability of other nutrients, plays a critical role in weed suppression, enhances soil organic matter, and improves efficiency of the inorganic fertilizers while maintaining the suitable soil pH condition for rice growth, which overall contribute to rice yield increment. Therefore, Azolla application has tremendous potential to improve soil health and boost yield sustainability.
SUGARCANE BAGASSE ADSORPTION EVALUATION AND APPLICATION ON BOD AND COD REMOVAL FROM TEXTILE WASTEWATER TREATMENT
Authors: Abdissa Desalegn , Beyecha Ketema
Published: January 2022

Without properly treated Wastewater released from textile industry contains organic and inorganic pollutants and causes environmental problems. Textile wastewater contains: BOD, COD, toxic heavy metals, organic and inorganic particle matter, colour and etc. The multi-component pollutions needs latest technology treatment. Butch adsorption process is one of the best selective unit operations for such treatment using organic waste material. Sugarcane bagasse was used for this experimental study in butch adsorption process. The variable affects the adsorption process are adsorbent dose changes 0.5 g to 2 g in 200mL sample, pH ranges 3 to 11 and retention time 3 to 7 days. The maximum BOD removed was 85% at 0.5 g, 3days and 8.32 dose, retention time and pH values respectively, and the maximum COD removed was 86% at 1 g, 3 days and 8.24 adsorbent dose, retention time and pH value respectively. Adsorbent dose, pH and retention time are significant factors on the competitive pollutant removal.
HE HARMFUL OF THE HYDROELECTRIC DAMS IN MEKONG RIVER UPSTREAM ON THE ECOSYSTEMS AND LIVELIHOODS IN THE MEKONG DELTA, VIETNAMS
Authors: Le Huy Ba , Le Hung , Nguyen Xuan Hoan
Published: January 2022

The hydro-electric of the upstream Mekong (China) has been and will greatly impact on the down-stream areas, in which the Mekong Delta (Viet Nam) is suffering a lot of losses Drought due to water trapped by dams upstream together with Climate Change, Sea Level Rise are present, its impact on Vietnam Mekong Delta and given scenarios for the specialist units to propose. 12 dams in the Chinese division, they accumulate too large water; even causing floods for the people, for many years, causing drought in the downstream, especially the Mekong Delta of Vietnam: drought, lack of water for crops, livestock, for human livelihoods. Alluvium of the river stream is also retained (formerly 160,000,000.00 tons / year, this year, only 80,000,000.00 tons / year, so not only the loss of crop but also erosion of the shoreline and coastline. and saline intrusion, under the impact of climate change is rapidly increasing and very high, in addition, the Sulfate Acidification process also becomes fierce. Characteristics of the ecological system of acid sulfate soil in the Mekong Delta, it contains more than 1.7 million Ha with S content about 1.0-.8%. in normal condition, they are not toxic, but when dry, dehydrated, and air penetrates, they will sulfate acidification very strong, produces highly toxic (Al3+> 3000ppm), kills aquatic organisms and rice, and other agricultural crops. Drought due to water resources by upstream countries, mainly by China, will be increasingly fierce: 6 processes simultaneously occurring in this Ecosystem: 1- Drought, 2: sulfate acidification, 3. Saltwaterization, 4. Lack of alluvium and nutrition, 5- riverbank erosion, sedimentation of estuaries and seaports; and 6 – Coastal landslide (which in the past, accreted to the sea 100m /year, now, in contrast, erosion and sea intrusion 25m/year. Productivity of rice and fisheries has been and will continue to decrease.
CRUSHED CONCRETE AS ADSORPTIVE MATERIAL FOR REMOVAL OF PHOSPHATE IONS FROM AQUEOUS SOLUTIONS
Authors: Genetie Abetu Arega , Befekadu Kebede Adisu
Published: January 2022

The contamination of surface and groundwater with phosphate originating from industrial, agricultural and household wastewater remains a serious environmental issue in low-income countries. Currently, demolished concrete is mainly recycled as aggregate for reconstruction and conventional wastewater treatment systems for removing phosphate are expensive and complex. In this study, we were aiming at testing crushed concrete as an efficient adsorbent for the removal of phosphate from aqueous solutions, obtained from the demolition of construction site. It can reduce pollution and landfill disposal by converting construction waste into valuable products and an alternative solution for phosphate removal. Batch adsorption experiments were conducted using phosphate solutions to examine the adsorption kinetic as well as equilibrium conditions. Results show that the phosphate adsorption of all absorbents follows the adsorption isotherms with a varying phosphate concentration from 3 mg/L to 18 mg/L, and the adsorption isotherms data are fitted well by Langmuir equation as compared with the Freundlich isotherm. The maximum phosphate adsorption (97.67 %) was obtained at a contact time of 120 min, an initial phosphate concentration of 10 mg/L, and a solution pH of 4. The pseudo second-order equation describes the experimental data has good agreement, with a correlation value of R2 = 0.99. The results obtained indicate that the environmentally available crushed concrete have a good adsorptive capacity for phosphate and shall be considered in future studies as test materials for phosphate removal from water in technical-scale experiment.
EFFECTS OF TEMPERATURE AND CHANGING DISINFECTANTS ON STEEL WATER PIPES CORROSION: CASE STUDY OF MASHHAD, IRAN
Authors: Rahimi-Golkhandan Mobin , Danesh Shahnaz , Davoodi Ali
Published: January 2022

Water pipe corrosion inflicts big health problems and financial damages to societies. Temperature, pH, type, and dosage of oxidants, and DO are some of the key factors that affect water pipe corrosion. The aim of this research is to assess the impacts of temperature (15 and 25oC), dosage of potassium permanganate (0, 1 and 2 mg/L) and sodium hypochlorite (0, 0.5 and 1 mg/L) on corrosion of steel pipes. To measure the corrosion of steel specimens, OCP, EIS and potentiodynamic polarization tests were conducted. The results showed a direct relationship between temperature and corrosion rate. A 10-degree raise in the temperature, caused a 25% increase in corrosion current density (CCD). Adding sodium hypochlorite to the solution, decreases CCD by around 50%. Moreover, potassium permanganate proved to have a positive impact on reducing CCD by up to 21%. The results demonstrate that simultaneous usage of NaClO and KMnO4 for water disinfection can have beneficial impact on corrosion of steel pipes. Finally, our analysis suggests that when combined with KMnO4, lower dosage of NaClO significantly increases polarization resistance. The findings of this research highlight the impact of disinfectants on steel water pipes corrosion in different temperatures and supports water infrastructure decision-makers in more effective rehabilitation and maintenance of water pipes. Further, our results inform decision-makers for a more effective infrastructure design and resilience planning to random failures caused by corrosion.
ADSORPTIVE CAPACITY OF COFFEE HUSK IN THE REMOVAL OF CHROMIUM (VI) AND ZINK (II) FROM TANNERY EFFLUENT: KINETICS AND EQUILIBRIUM STUDIES
Authors: Abdissa Desalegn , Abeto Temesgen , Mekonnen Yigezu , Beyene Dejene
Published: January 2022

Tannery wastewater is the most challenging due to the complex toxic pollutants it releases into the environment. Similarly, coffee husk from coffee processing operations pollutes the environment. The use of coffee husk to remove hexavalent chromium (VI) and Zink (II)from tannery wastewater solves pollution problems due to untreated tannery wastewater and coffee husk. A batch adsorption process was conducted to determine chromium (VI) and Zink (II)adsorptive capacity of waste coffee husk to treat tannery wastewater. The effects of adsorbent dose (0.2-2.4 g/L), contact time (20- 60 min), agitation speed (50-250 rpm), and pH value (2-8) on the adsorptive capacity of coffee husk on the removal of hexavalent chromium (VI) & zinc (II) from tannery wastewater were studied. Using 2.4 g/L adsorbent dose, 250 rpm agitation speed, 60 min contact time, and pH value of 2, a maximum Cr(VI) removal capacity of coffee husk was 83%. The maximum Zn(II) removal capacity of coffee husk was found to be 79% at an adsorbent dose of 2.4 g/L, 60 min contact time, pH 7, and agitation speed of 250 rpm. Therefore, it can be concluded that coffee husk achieved significant removal of hexavalent chromium (VI) and zinc (II) from tannery wastewater.
OPTIMIZATION AND CHARACTERIZATION OF CALCINATED CHICKEN EGG SHELL DOPED TITANIUM DIOXIDE PHOTOCATALYST BASED NANOPARTICLES FOR WASTEWATER TREATMENT
Authors: Mekonnen Bayisa Yigezu , Aga Bullo Tafere , Seid Bultum Mohammed
Published: January 2022

In recent decades, research concerning and knowledge about the external benefits of renewable raw materials have intensified the efforts for investigating the major sources, causes, and effects of wastewater from solid waste and industries or households. In this study bio-matter and low-cost photocatalyst was prepared for photodegradation on the removal of methylene blue from wastewater treatment, and characterized by Fourier-transform infrared (FTIR) spectroscopy, UV-spectrometer, and X-ray diffractometer (XRD). The effects of initial concentration of methylene blue, amount of dopant, and degradation time were investigated on the percentage degradation of methylene blue using the calcinated eggshell doped titanium dioxide nanoparticle catalysts. At sufficient contact time and low initial concentration, the increment in dopant dose from 0.5 to 2.5 g/l results in an increment of methylene blue degradation efficiency, from 52.5 % to 95.8%. It was shown that a calcinating eggshell doped titanium dioxide photocatalyst method for wastewater treatment is a promising option for the degradation of methylene blue from industrial wastewater under the stated condition.
سياسات التعاوُن الرقمي بين الأجهزة الأمنيَّة العربيَّة
Authors: Elbably Amar
Published: January 2022

يُسهِم‭ ‬التعاوُن‭ ‬الأمني‭ ‬الرقمي‭ ‬بين‭ ‬الدول‭ ‬إسهامًا‭ ‬كبيرًا‭ ‬في‭ ‬انحسار‭ ‬الجرائم‭ ‬المُنظَّمة‭ ‬والقضاء‭ ‬عليها،‭ ‬وبخاصَّةٍ‭ ‬الجرائم‭ ‬الإرهابيَّة،‭ ‬وهو‭ ‬ما‭ ‬يتطلَّب‭ ‬ضرورة‭ ‬تفاعُل‭ ‬الدول‭ ‬فيما‭ ‬بينها،‭ ‬وزيادة‭ ‬الجهود‭ ‬في‭ ‬سبيل‭ ‬تشجيع‭ ‬هذا‭ ‬التعاوُن‭ ‬وتفعيله،‭ ‬بإيجاد‭ ‬وسائل‭ ‬تعاونيَّة‭ ‬في‭ ‬المسائل‭ ‬الأمنيَّة‭ ‬الكفيلة‭ ‬بالوقاية‭ ‬من‭ ‬الجريمة‭ ‬وتَتَبُّع‭ ‬مرتكبيها‭ ‬حالَ‭ ‬وقوعها‭ ‬باستخدام‭ ‬شبكات‭ ‬مُؤَمَّنَة‭ ‬تسمح‭ ‬بنقل‭ ‬البيانات‭ ‬والمعلومات‭ ‬والتطبيقات‭ ‬بين‭ ‬الأجهزة‭ ‬المعنيَّة‭ ‬بأجهزة‭ ‬الشرطة‭ ‬العربيَّة،‭ ‬واستخدام‭ ‬التقنيات‭ ‬المُؤَمَّنَة‭ ‬والسريعة‭ ‬التي‭ ‬تسمح‭ ‬بالتبادُل‭ ‬الرقمي‭ ‬للأجهزة‭ ‬الشرطيَّة،‭ ‬ما‭ ‬يحقِّق‭ ‬منع‭ ‬وقوع‭ ‬الجرائم‭ ‬والكشف‭ ‬عنها،‭ ‬وملاحقة‭ ‬المخطَّطات‭ ‬الإجراميَّة‭ ‬والإرهابيَّة‭ ‬بجميع‭ ‬أشكالها‭ ‬واستباق‭ ‬المعلومات‭ ‬بما‭ ‬يحافظ‭ ‬على‭ ‬الأمن‭ ‬الوطني‭ ‬للدول‭ ‬العربيَّة‭.‬
«DiPoly» (Diffraction Analysis of Polymers) — программное обеспечение для диагностики биополимеров по порошковым дифракционным данным
Authors: Яценко Д.А.
Published: January 2022

«DiPoly» — новое программное обеспечение, реализующее основные дифракционные методы для структурной характеризации биополимеров. Программа общедоступная, обладает дружественным интерфейсом и позволяет обрабатывать экспериментальные порошковые рентгеновские дифрактограммы полимерных образцов биомассы различного происхождения. Для определения размеров областей когерентного рассеяния используется формула Селякова—Шеррера, а для оценки степени кристалличности — комплексный подход на основе методов Сегала, декомпозиции и Ле Бэйла. Программное обеспечение может быть использовано для постановки стандартизированных методик структурной диагностики как при проведении научных исследований в области синтеза, так и для контроля производства.
Влияние полиморфизма на люминесцентные свойства комплексов нитрата серебра(I) с 2-амино-5-фенилпиразином
Authors: Малахова Ю.А. , Сухих Т.С. , Рахманова М.И. , Виноградова К.А.
Published: January 2022

Реакция между AgNO3 и 2-амино-5-фенилпиразином (L) при мольном соотношении Ag:L = 1.5:1 (время синтеза 3—4 ч) в ацетонитрильном растворе приводит к образованию комплекса [AgL2NO3] (1). По данным рентгеноструктурного анализа к каждому атому серебра координированы две молекулы L атомом N1 пиразинового цикла и один анион NO3–. Полиморф 2 получен по реакции между AgNO3 и L при мольном соотношении 1:2 и при коротком времени синтеза (3—30 мин). Комплекс 2 состоит из двух фрагментов ([AgL2]+ и [AgL2(NO3)2]–), в которых атомы серебра имеют разное координационное окружение — почти линейное и искаженно-тетраэдрическое соответственно. В спектрах фотолюминесценции комплексов в твердом состоянии наблюдаются две полосы эмиссии, проявляющиеся при облучении светом с разными длинами волн: при возбуждении в диапазоне 300—400 нм оба комплекса демонстрируют голубую эмиссию (λмакс = 445 нм для 1, λмакс = 430 нм для 2), при λвозб = 440—500 нм наблюдается зеленая эмиссия (λвозб = 545 нм для 1, λмакс = 545 нм для 2). Обе полосы характеризуются биэкспоненциальными кинетиками затухания с наносекундными и микросекундными компонентами времен жизни возбужденных состояний.
Developing Teacher Education Performance Assessment through Teaching E-portfolios and Pre-service/In-service EFL Teachers’ Self-reflection
Authors:   Islamic Azad University, Qaemshahr Branch, Qaemshahr, Iran, Nafari Fatemeh , Ahmadian Mehrshad ,   Islamic Azad University, Qaemshahr Branch, Qaemshahr, Iran, Fakhri Ebrahim ,   Islamic Azad University, Qaemshahr Branch, Qaemshahr, Iran
Published: January 2022

A portfolio is a document describing skills, experience, interests or knowledge of an individual. Recently, the conventional paper-based portfolio has been no longer able to keep pace and therefore, some researchers have suggested e-portfolios overcome this weakness. It is rare to find research on e-portfolio for managing certification of professional competence. Considering that developing an Education Teacher Performance Assessment (edTPA) teaching e-portfolio helps teachers to become more reflective in their teaching, the present study tried to merge this issue by exploring the effects of developing edTPA teaching e-portfolios on pre-service and in-service teachers’ self-reflection in a teacher preparation program in the Iranian EFL context. The researchers employed a sequential explanatory mixed methods approach. A self-reflection survey was administered to 100 EFL pre�service and in-service teachers. The participants developed edTPA teaching portfolios with three specific types of tasks (planning, instruction, and assessment) in their classrooms. After the teaching classroom, a self-reflection survey was administered as a posttest. Then six of the participants were surveyed using a follow-up interview. The results of the study showed that there was a significant improvement in the EFL teachers’ self-reflection in both groups through developing three types of edTPA and underlying five factors of reflection in their teaching. Research on edTPA as a tool measures teacher readiness and reflection. Further research efforts should focus on edTPA performance, teacher evaluation and student performance to add to the professional discourse on teacher preparation, teacher quality, and policy making.
Students’ Mathematics Achievements: A Comparison between Pre- and Post-COVID-19 Pandemic
Authors:   University of Primorska, Koper, Slovenia, Doz Daniel
Published: January 2022

The COVID-19 pandemic represented a shift from face-to-face to online and distance learning. Teaching methods and assessing strategies changed, as well as grading standards. The focus of this paper is to address the differences between pre- and post-COVID-19 pandemic mathematics grades and, in particular, to investigate the possible differences between mid-term and end-term grades in Italy. To this end, 231 Italian middle and high school students’ grades were analysed. Using the Wilcoxon rank test (a non-parametric statistical test) the results showed a statistically significant difference in pre- and post-COVID-19 quarantine grades. End-of-year grades were higher than those before the COVID-19 confinement. Furthermore, the results indicated that more than half of the students in the sample achieved a higher grade at the end of the school year. Gender differences in mathematics grades were examined, since the literature about gender gap in mathematics achievement is not coherent about whether boys outperform girls or vice versa. Statistically significant differences at the end of the first semester were reported, in favour of female students although gender differences were not detected at the end of the school year. The findings suggest that greater caution should be paid in interpreting students’ grades pre- and post-COVID-19 confinement, since it cannot be excluded that such students’ achievements are inflated. Excessively high students’ grades that do not represent their actual knowledge and competencies could give educators and legislators misleading and even false information about the quality of distance learning and students’ knowledge.
Developing the Metalinguistic Competence of Engineering Students
Authors:   Kazan National Research Technological University, Kazan, Russia, Bogoudinova Roza , Tsareva Ekaterina ,   Kazan National Research Technological University, Kazan, Russia
Published: January 2022

The paper discusses the socio-communicative function of the engineer’s foreign language training in which content is based on materials relating to the latest global technological advances and understanding of the essence of production culture in different countries. It discusses the structure and content of foreign language training taking into account the potential of multilingualism, technical communication and metalinguistic competence. Foreign language training contributes to the formation of linguistic, communicative and metacognitive skills. It sets out the modern international requirements in an engineering university, identifies the contradictions and features of pedagogical forms, methods and tools, and sets out the content and structure of multilingualism, technical communication and metalinguistic competence. A methodology for the implementation of foreign language training in combination with multilingualism, technical communication and metalinguistic competence is proposed and proved through the realization of group international study trips. Here, the students showed an understanding of technologies in foreign languages and a metalinguistic awareness focusing on the cultural traditions of the region and local features of production. The article argues for a conscious approach to deeper linguistic knowledge, cultures of different countries and technologies with advanced language and communications requirements in the field of science and technology, combining linguistic and engineering thinking in the human mind for a more complete understanding of the essence and content of engineering education.
Exploratory Analysis of Entrepreneurship Education in the Jamshoro Public Universities: A Descriptive Study
Authors: Solangi Aasma , Pitafi Adnan
Published: January 2022

The purpose of this study is to explore entrepreneurship education courses offered by public universities of the Jamshoro higher education institutions (HEIs). It examines the scope and the existing status of entrepreneurship in the Jamshoro public universities. Data were based on secondary data taken from official websites, prospectus, departmental reports and universities’ policy documents of the public universities of the Jamshoro Higher, included three public universities by examining their curricula and exploring the status of entrepreneurship of the selected sample from these universities. The results of this study indicated the public universities of the Jamshoro higher education city, just one core course on entrepreneurship was offered to some departments. Furthermore entrepreneurship programs were extremely rare. As a result, this research may encourage policymakers and universities to develop an effective and appropriate syllabus to fill the gap in existing curriculum of not only entrepreneurship but other courses as well.
Kecernaan Nutrien dan Status Fisiologis Domba Akhir Kebuntingan dengan Ransum Flushing Minyak Sawit dan Minyak Lemuru
Authors: Khotijah Lilis , Yasin M , Diapari Didid , Fassah Dilla Mareistia
Published: January 2022

The objective of this study was to evaluate nutrient digestibility and physiological status of local sheep at late pregnancy fed with flushing diet containing palm oil, lemuru oil, and their combination. In this research, the livestock used were 12 female local sheep at late pregnancy with an average body weight of 43.58 ± 5.57 kg were placed in metabolic cages. This study used a randomized block design (RBD) with 4 treatments and 3 block replications. The treatments were P1 = control ration (30% grass + 70% concentrate), P2 = control ration + 6% palm oil supplementation, P3 = control ration + 3% lemuru oil and 3% palm oil supplementation, P4 = control ration + 6% lemuru oil supplementation. The feed consumption, nutrient digestibility, and physiological status were measured in this study. The data obtained were analyzed using ANOVA. Means values differences were analyzed using Duncan test. The results showed that the addition of palm oil and lemuru oil to the concentrate diet increased (p<0.05) crude fat consumption, dry matter digestibility, and crude fat digestibility, but decreased (p<0.05) Nitrogen free extract consumption. Addition of palm oil and lemuru oil on the concentrate diet had no significant effect on dry matter consumption, crude protein consumption, crude fiber consumption, crude protein digestibility, crude fiber digestibility, Nitrogen free extract digestibility, and TDN value. The treatments did not affect significantly  on physiological status. It can be concluded that the use of 6% palm oil in the ration can increase crude fat consumption and crude fat digestibility in pregnant ewes.

Key words:        digestibility, ewes, flushing, oil, physiological status
Produksi Dan Kualitas Jerami Padi Sumber Hijauan Pakan Dengan Waktu Panen Dan Dosis Pupuk Berbeda
Authors: Syafiyullah Radian , Kumalasari N R , Abdullah L
Published: January 2022

This study was  aimed to analyze the fertilizer  dosage and harvest age in Ciherang rice varieties to increase the rice straw production and quality. This study used a block randomized design with 3 x 4  blocks divided based on harvest age H1 = 114 days, H2 = 118 days and H3 = 122 days.  The treatment was fertilizer dose level which consists of 4 levels, namely: P0 (control) = Urea 55 g+SP-36 5 g+KCl 6 g, P1= Urea 63,25 g+SP-36 5 g+KCl 6 g, P2= Urea 71,50 g+SP-36 5 g+KCl 6 g dan P3= Urea 79,75 g+SP-36 5 g+KCl 6 g. The variables observed were straw production, grain production, filled grain production, empty grain production, crude protein (CP), crude fiber (CF), Acid Detergent Fiber (ADF) and Neutral Detergent Fiber (NDF). Data were analyzed using analysis of variance  followed by Duncan's Multiple Range Test. The results showed that P3 was significantly (p< 0.05) the highest  among fertilizer dose level treatments on the  straw production (27.63 tons  ha-1), filled grain production (5.52 tons ha-1), and reduced empty grain (0.15 tons  ha-1). The Quality of rice straw were CP 7.49%, CF 20.35%, ADF 55.03 %). While at harvest age, H1 was significantly (p< 0.05) the highest  among harvest ages treatments on the variables of straw production 28.18%, empty grain production 0.21 tons  ha-1) and NDF 69.11%. It can be concluded that the best fertilizer  dosage was an addition of urea by 45% with harvesting  age of 114 days. Key words:        fertilizer, harvest age, production, quality, rice straw
Pemanfaatan Limbah Batang Pisang Menjadi Kompos
Authors: Meilani Sophia Shanti , Susyani Noveria Eka
Published: January 2022

Limbah organik sering menjadi permasalahan di setiap kota di Indonesia karena kuantitasnya yang terus bertambah sementara lahan tempat pembuangan akhir semakin terbatas. Sebagian besar limbah organik, yang sebetulnya berpotensi diolah menjadi kompos, langsung dibuang ke tempat pembuangan akhir. Hal tersebut juga terjadi di kota Bekasi. Limbah batang pisang yang merupakan limbah organik menimbulkan masalah karena berat dan volumenya yang besar. Pengomposan merupakan salah satu alternatif untuk mengolah limbah organik. Limbah batang pisang mengandung Karbon, Nitrogen, Fosfor, dan Kalium yang merupakan unsur penting dalam pengomposan. Penelitian ini dilakukan untuk mengetahui potensi pengolahan limbah batang pisang menjadi kompos. Proses pengomposan limbah batang pisang dilakukan selama 25 hari. Selama proses pengomposan, temperatur mengalami kenaikan hingga 45 oC. Hasil akhir menunjukkan kompos yang dihasilkan mengandung C-organik, fosfor, dan kadar air yang sesuai dengn persyaratan SNI 19-7030-2004.  Kompos batang pisang juga mengandung Kalium dan Mangan meskipun konsentrasinya masih belum memenuhi persyaratan. Pengomposan limbah batang pisang memberikan dua keuntungan yaitu mengurangi jumlah limbah organik dan menghasilkan produk yang dapat dimanfaatkan sebagai pupuk. Kompos batang pisang mengandung nutrien yang bermanfaat untuk meningkatkan produktivitas tanaman.
Genetic Analysis on Yield and Yield Components Traits in the Segregating Populations of Blackgram[Vigna mungo (L.) Hepper]
Authors:   1National Pulses Research Center, Tamil Nadu Agricultural University, Vamban-622303,, N Manivannan ,   2Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore - 641003, N Ganapathy ,   4Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore - 641003, K Iyanar ,   3Department of Millets, Tamil Nadu Agricultural University, Coimbatore - 641003., G Karthikeyan ,   Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore - 641003
Published: January 2022

The magnitude of variability and association among various traits in F2 populations of three crosses viz., MDU 1 x TU68, VBN6 x TU68, and VBN8 x TU68 of blackgram were studied. The experiment was conducted at the National Pulses Research Centre, Vamban, during Rabi 2019. The genotypic coefficient of variability was lower than the values of phenotypic coefficient of variability, which revealed the influence of the environment in deciding the expression of these populations.The traits viz., plant height, number of branches per plant, number of clusters per plant, number of pods per plant, and seed yield per plant has recorded high heritability and high genetic advance as per cent of mean for the majority of the crosses. It indicated that these traits were less influenced by the environment and possessed with high magnitude of genetic variability. Association studies revealed that the traits viz., number of clusters per plant, and number of pods per plant in all the three crosses recorded significant and positive association with seed yield per plant. Hence, based on the present investigation, it can be concluded that the number of clusters per plant and number of pods per plant should be given due importance in framing the selection indices for seed yield improvement in blackgram. However, separate selection indices are required for each population as the association of traits differs among populations.
Assessment of GeneticVariability and Character Association in Yield Related Traits and Yellow Vein Mosaic Virus Disease Resistance in Okra (Abelmoschus esculentus L. Moench)
Authors:   Department of Vegetable Science, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India, VR Gurve , R Swarna Priya ,   Department of Vegetable Science, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India, L Pugalendhi ,   2Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India., G Karthikeyan ,   3Department of Plant Pathology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India, R Gnanam ,   4Department of Plant Molecular Biology and Bioinformatics, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India., R Kalaiyarasi ,   5Department of Genetics and Plant Breeding, Centre for Plant Breeding and Genetic, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India.
Published: January 2022

Okra is India’s most widely grown tropical and subtropical vegetable crop. Despite widespread cultivation, crop yield and productivity remain subpar. Yellow vein mosaic virus (YVMV) disease is a serious threat to Indian okra production, causing yield losses ranging from 17.09 to 96.49 per cent. In this context, the present study was aimed to assess the variability and character association of 74 elite germplasm accessions for thirteen quantitative and quality traits. High phenotypic and genotypic coefficient of variation (PCV and GCV) were observed among all evaluated traits except fruit diameter, which showed a moderate PCV and GCV. All traits had high heritability and high genetic advance, implying that the heritability was most likely due to additive gene effects. Direct selection of these traits would be advantageous for okra improvement, especially in developing a YVMV resistant genotype. Fruit yield per plant exhibited a significant and positive genotypic as well as phenotypic correlation with fruit weight, fruit length, peroxidase activity, polyphenol activity, fruit diameter, total phenolic content and plant height, whereas node at which the first flower appeared and YVMV were negatively correlated to fruit yield per plant. Correlation studies indicated YVMV resistance towards high total phenolic content, polyphenol oxidase, and peroxidase. The high positive direct effects on fruit yield per plant were observed for fruit weight followed by number of fruit per plant and total phenolic content. This study revealed that simultaneous selection of these traits can help in increasing yield and YVMV resistance.
Laboratoř neuropsychologie Neurologické kliniky 1. LF UK
Authors: Bezdíček Ondřej , Nikolai Tomáš
Published: January 2022

The Laboratory of Neuropsychology (LN)—Jiří Diamant Neuropsychological Laboratory—is a generic base for research and teaching of clinical and experimental neuropsychology in close connection with clinical neuroscience research and postgraduate studies in neuroscience and medical psychology and psychopathology at the Department of Neurology. The LN provides medical services and participates in teaching and research as required by the Head of the Dept. of Neurology. The LN is a base for collaboration with external departments, especially in the areas of clinical and medical psychology, health psychology, brain imaging, neurosurgery, and psychopharmacology. The research program of the LN is mainly devoted to the neuropsychology of neurodegenerative diseases and the development of neuropsychological tools for the assessment of neuropsychiatric disorders.
Léčba smyslem: Základy a aplikace logoterapie
Authors: Janda Tadeáš
Published: January 2022

The book consists of edited lectures Frankl delivered as a visiting professor to students at Southern Methodist University in Dallas, Texas, during the summer semester of 1966. It is the third publication by Viktor Emil Frankl (1905–1997) to appear in the Classics series published by Czech publisher Portal.