bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluación de cambios en uso y cobertura de la tierra a escala de cuenca hidrográfica del río Chone.
Authors: Mendoza Loza Helen Julieth , Chavarría Párraga Jesús , Giler-Ormaza Andy Miguel
Published: March 2021

La investigación permite identificar los cambios desde el año 1992 hasta el 2015, siguiendo la evolución del medio natural y la consecuencia de la acción humana sobre el mismo. El propósito de la evaluación de cambios en uso y cobertura de la tierra a escala de cuenca hidrográfica del Río Chone, a través del tiempo mediante imágenes ESA-CCI-LC que tienen una combinación de datos de teledetección como el MERIS de 300 m, el SPOT -VEGETATION de 1 km, el PROBA -V de 1 km y el AVHRR de 1 km. Se pudo observar que el mayor incremento se dio de la cubierta arbórea de 9,69% con 967 hectáreas en comparación con el periodo anterior (1992).
Niveles de relaxina y calcio en niños y niñas con hiperlaxitud en Cusco y Lima año 2018.
Authors: Yampufé Cornetero José Manuel , Antezana Alzamora Sonia , Najarro Vargas Justina
Published: March 2021

El objetivo del trabajo es Determinar los niveles de relaxina y calcio en niños y niñas con hiperlaxitud en Cusco y Lima 2018 con unidades participantes de 30 niños con hiperlaxitud de Cusco y 30 niños con hiperlaxitud de Lima. Se evaluan los niveles de relaxina y calcio en una muestra de sangre de los niños con hiperlaxitud de Cusco y Lima, y para el análisis estadístico, se usa el SPSS 22 y el programa Microsoft Excel. Como resultados se plantea que estadísticamente no existe correlación significativa entre los niveles -0.4 de los valores de relaxina y calcio en niños con hiperlaxitud de Cusco y Lima.
La inversión económica en categorías menores y su impacto en el rendimiento del futbol peruano en competiciones internacionales.
Authors: Chumpitaz Díaz José Francisco , Raiza Chumpitaz Diaz Graciela Helena , Aguilar Neira Claudia Emili
Published: March 2021

La poca inversión en la preparación de las categorías menores por parte de los administradores es una de las causas de que el futbol peruano presentara un bajo rendimiento en los torneos internacionales durante los años 2015 y 2016 y repercusiones económicas negativas. El objetivo general fue determinar cómo la inversión económica en la preparación de las categorías menores influye en el rendimiento del futbol peruano en competiciones internacionales. En este sentido, la presente investigación (de carácter no exploratoria y de tipo correlacional) tiene como unidad de análisis el club de la primera división de la Federación Peruana de Futbol de donde se seleccionó una muestra asociada a las divisiones menores de cuatro clubs de Lima Metropolitana.
Los intentos de armenización de Nakhchivan por la Rusia zarista.
Authors: Aliyev Zamin
Published: March 2021

Los armenios intentaron establecer un estado después de la consolidación en los territorios donde fueron trasladados por Rusia. Los armenios se ocupan de la existencia de un "estado armenio" artificial en el siglo IV; sin embargo, tal estado no existió en la historia, tal vez fue como un organismo local de autoadministración. Aunque el tratado de Turkmenchai, en el que la Rusia victoriosa instó al derrotado estado de Gajar a firmar en la primera mitad del siglo XIX, fue considerado una oportunidad para los armenios, más tarde provocó la instigación de los conflictos nacionales en el sur del Cáucaso. Los armenios se establecieron en Irevan, Kharabakh y Nakhchivan, que eran partes integrales de la antigua tierra turca, Azerbaiyán. Sobre la base de los hechos históricos, es posible señalar que las regiones de Irevan, Kharabakh y Nakhchivan eran partes de los términos geográficos de Azerbaiyán.
Can Manage The Security And Online Reputation In Sexting And Cyberbullying?
Authors: Bălan Sorina Mihaela
Published: March 2021

One of the most wonderful inventions is the internet. Analyzing the advantages and disadvantages of this fantastic world, we believe that we must turn our attention to the sexual implications of cyberbullying. In introduction can find the specific terminology, like: cyberbullying, harassment, cyberstalking, denigration, outing and trickery and sexting. Next part present same research in the topics, same case study from specific literature. How can manage the security and online reputation? – the answers can guided the rider. Education in prevention of Sexting and cyberbullying indicate also advices for parents, made reference at parental control recommendations and ten specific messages to share with adolescents in formal or informal. In this moment we can say that is difficult to managing the security and online reputation in sexting and cyberbullying but is a major provocation.
IoT Enabled Cluster Based Energy Aware Routing Protocol In WSN
Authors: R Steffi
Published: March 2021

Because of the unpredictable nature of sensor nodes, propagating sensory data raises significant research challenges in Wireless Sensor Networks (WSNs). Recently, different cluster-based solutions are designed to improve network stability and lifetime. However, most energy-efficient solutions are developed for homogeneous networks and uses only a distance parameter for data communication. Although, some existing solutions are attempted to improve the selection of next-hop based energy factor. Nevertheless, such solutions are unstable and lack reduce data delivery interruption in overloaded links. Our proposed solution aims to develop Reliable Cluster-based Energy-aware Routing (RCER) protocol for heterogeneous WSN which lengthens network lifetime and decreases routing cost. Our proposed RCER protocol makes use of heterogeneity nodes concerning their energy and comprises of two main phases; firstly, the network field is parted in geographical clusters to make the network more energy-efficient and secondly; RCER attempts optimum routing for improving the next-hop selection by considering residual-energy, hop-count and weighted value of Round-Trip Time (RTT) factors. Moreover, RCER restores routing paths and provides network reliability with improved data delivery performance. Simulation results demonstrate significant development of RCER protocol against their competing solutions.
Choreographing Intertextual Stories: Qualitative Inquiry Meets Oral History
Authors: Mulvihill Thalia , Latz Amanda
Published: March 2021

In Oral History for the Qualitative Researcher: Choreographing the Story (2010), Valerie J. Janesick offers readers an engaging conversational exploration of oral history methods using the metaphor of choreography. Janesick weaves together the theoretical and practical dimensions of conducting oral history projects and generously shares valuable examples throughout the text.
Narrative Research Methodology in Mobile Work Research
Authors: Jin Li
Published: March 2021

This book review provides a summary of the content of the book "Mobile Work, Mobile Lives: Cultural Accounts of Lived Experiences" and a critical review of the methodological strengths of the articles included in the book. It also points out one structural weakness of the book. The appropriate readership is recommended as well.
Collecting International Merchant Seafarer Oral Histories: Experiences and Reflections
Authors: Matyók Tom
Published: March 2021

Investigating highly mobile labor populations presents researchers with unique challenges and opportunities. In this paper, I share my experiences and reflections in collecting international merchant seafarers' oral histories and propose to move the dialogue forward regarding the use of hybrid qualitative research practices. Seafarers are constantly moving, at sea and in port, and traditional research methodologies are inadequate in determining the nature of modern-day seafaring. I suggest how qualitative research methods must be flexible enough to accommodate researchers' needs in a chaotic global milieu. Investigators researching highly mobile labor populations, as well as mobile immigrant and refugee communities, can gain insights into the challenges and methods available for meeting those challenges.
A Review of Qualitative Research: Studying How Things Work
Authors: Chorba Kristen
Published: March 2021

Qualitative Research: Studying How Things Work by Robert E. Stake reviews the processes, procedures, concepts, and assumptions of qualitative research in a way that encourages the reader to consider multiple elements of the design, implementation, and reporting of a study. This book is appropriate for a wide range of qualitative and mixed-methods researchers, including those who are just beginning and those who have moved beyond the basics and are working on their own studies. Stake's clear and conversational style makes this book easy to understand and apply to one's own work, but the text will challenge readers to take their reasoning about and understanding of qualitative research beyond an introductory level.
School Counselor and School Psychologist Perceptions of Accountability Policy: Lessons from Virginia
Authors: Ruff Ryan
Published: March 2021

This paper is concerned with the professional efficacy of school counselors and school psychologists that operate under the umbrella of accountability reforms. Research questions addressed counselor and psychologist job roles and responsibilities, as well as their personal perspectives on the impact of accountability reforms on both the classroom context and student socio-emotional development. Interviews were conducted with counselors and psychologists of varying professional experience and school level, with analysis following analytic induction. Results indicate that the efficacy of student support personnel has been negatively impacted by accountability reforms, but schools that maintain a positive culture dedicated to excellence minimize that effect. Additionally, results highlight the unanticipated consequences of accountability on the teacher, student, and counselor/psychologist relationship and emphasize the need to cultivate a nurturing socio-emotional environment for students.
An Exemplar for Teaching and Learning Qualitative Research
Authors: Onwuegbuzie Anthony , Leech Nancy , Slate John , Stark Marcella , Sharma Bipin , Frels Rebecca , Harris Kristin , Combs Julie
Published: March 2021

In this article, we outline a course wherein the instructors teach students how to conduct rigorous qualitative research. We discuss the four major distinct, but overlapping, phases of the course: conceptual/theoretical, technical, applied, and emergent scholar. Students write several qualitative reports, called qualitative notebooks, which involve data that they collect (via three different types of interviews), analyze (using nine qualitative analysis techniques via qualitative software), and interpret. Each notebook is edited by the instructors to help them improve the quality of subsequent notebook reports. Finally, we advocate asking students who have previously taken this course to team-teach future courses. We hope that our exemplar for teaching and learning qualitative research will be useful for teachers and students alike.
Idiopathic Inflammatory Myopathies (IIMs)
Authors:   Associate professor of medicine, Faculty of health and medical sciences, University of Western Australia, G11 M Block UWA health, Campus (QF11) Monash, Ekladious Adel
Published: March 2021

Diagnosis of inflammatory myopathy are usually based on clinical examination and histopathology of the muscles and muscle biopsy, usually guided by PET-CT. This is not uncommonly presented by extramacular signs like interstitial lung disease, dysphagia, few skin signs, loss of weight, arteritis, cardiomyopathy, Pulmonary hypertension, respiratory failure, and cancer.
Некоторые аспекты применения новых информационных технологий в лабораторном практикуме по физике
Authors: Бондина М.Е.
Published: March 2021

Рассматриваются вопросы применения в высших учебных заведениях виртуальных лабораторных работ по физике. Их преимущества и недостатки по сравнению с традиционным лабораторным практикумом. Отмечена важность дополнения реального эксперимента виртуальным
К вопросу о подготовке будущих офицеров к воспитательной работе:
аксиологический подход
Authors: Черномазов И.С.
Published: March 2021

Актуализируется одна из ключевых функциональных задач офицерского состава – вос-питание подчиненного личного состава. Проанализирована система воспитательной деятель-ности военных образовательных организаций высшего образования на современном этапе раз-вития Вооруженных сил. Раскрыто понятие системы ценностей субъекта воспитания. Про-анализирована совокупность ценностей будущего офицера с ориентацией на военно-профессиональную деятельность. Представлены группы качеств, характеризующих систему ценностей курсанта военного вуза. Раскрыты особенности формирования системы ценностей будущего офицера, представлен способ диагностики системы ценностей военного специалиста
К вопросу педагогического проектирования технологии профессионального психологического отбора в войсках национальной гвардии РФ
Authors: Краснов И.В.
Published: March 2021

Рассматриваются вопросы профессионального психологического отбора в войсках национальной гвардии РФ на современном этапе. Актуальность исследования обуславливается целым рядом взаимозависимых факторов, которые затрагивают комплекс личностных характеристик военнослужащих
Методологические подходы формирования антикоррупционной позиции младшего начальствующего состава вневедомственной охраны Росгвардии
Authors: Ноздрачёв A.A.
Published: March 2021

Обоснованы методологические подходы, формирования у сотрудников младшего начальствующего состава вневедомственной охраны федеральной службы войск национальной гвардии активной антикоррупционной позиции
WATER STRESS EFFECT ON WHEAT AT DIFFERENT MECHANICAL SEEDING SYSTEMS
Authors: Zaman Rokon
Published: March 2021

Judicial water use, as well as improving water use efficiency in agriculture is new challenge. Conservation tillage, as well as mechanical seeding system, offers various benefits over intensive tillage system. Considering this, the study was conducted to find out the water requirements and appropriate deficit irrigation schedule of wheat on different seeding system. This study consisted of following irrigation treatments, like I1 = Irrigation at CRI stage, I2 = Irrigation at CRI and vegetative stages, I3 = Irrigation at CRI and grain filling stages and I4 = Irrigation at CRI, vegetative and grain filling stages on four mechanical seeding methods, like T1 = Bed planting, T2 = PTOS, T3 = Strip tillage, and T4 = Zero tillage and laid out in a split plot design with three replications. From the result based on the grain yield and water productivity, bed planting (T1) and three levels of irrigation (I4) was found as the best combination for wheat cultivation. Besides, at water scarcity area bed planting (T1), with two irrigation I2 (CRI and vegetative) was the suitable reduce irrigation scheduling for wheat cultivation. In different seeding methods, bed planting was increased yield about 10.58%, followed by PTOS and yield was identical in PTOS and ST. Comparatively, lowest yield was observed in zero. In irrigation treatment, three irrigations (I4) was observed, the best scheduling for wheat on all seeding system and yield was increased 11.98% in I4, followed by I2 and lowest yield was found in I1. The result also revealed that the soil moisture contribution was decreased with increased applied water, as well as number of irrigation.
SOIL PHOSPHORUS DYNAMICS OF SWEET
POTATO-BASED CROPPING SYSTEM IN A RAINFOREST REGION OF NIGERIA
Authors: KAREEM I. , AKINRINDE E. A. , OLADOSU Y. , ABDULMALIQ S. Y. , EIFEDIYI E. K. , ALASINRIN S. Y. , KAREEM S. A.
Published: March 2021

To guard against soil phosphorus (P) toxicity in tuber production and have optimum tuber yield at lesser cost of P-fertilization, better understanding of the dynamics of phosphorus release in sandy loamy soil is inevitable. Therefore, this work was carried out to investigate the trend of P-release from time of application to its optimum release and its effect on sweet potato growth and tuber production. To achieve this, a 5-week incubation study under laboratory conditions was carried out to study P-release dynamics using different P sources. Similar experiment was conducted on the field using the same P sources and application rate to monitor the influence P-release rate on sweet potato production. Data on number of leaves, vine length, tuber yield, soil extractable phosphorus and phosphorus uptake of the plants were taken. Relationships between P-uptake and tuber yield, number of leaves, vine length were also established. It was found that the trend of phosphorus release was a sigmoid shape. Leaf production and vine length were improved by P-application, while yield was suppressed. It is recommended that P-fertilizer should not be applied to the soil at short intervals to avoid nutrient toxicity.
EFFECTS OF CITRUS ROOTSTOCKS ON SOME PLANT NUTRIENT ELEMENTS ABSORPTION OF GRAFTED CULTIVARS
Authors: RAMEEH V. , RAMZANPOUR M. R. , MATANI R.
Published: March 2021

Citrus rootstocks have prime effects on the size of tree and fruit, quality of fruit and micorhyza dependence, which make difference in their leaf mineral elements concentration in leaf of grafted cultivars on them. A pot factorial experiment with two factors including rootstocks (sour orange, Citrange, Rough Lemon, Citrumelo and Yozo) and grafted cultivars (Thomson Navel, Sanguine, Unshiu Tangerine) was carried out in farm conditions with three replications. The studied traits were concentrations of elements in leaves including nitrogen, phosphorus, potassium, sulfur, magnesium, iron, manganese, zinc and copper. The result of analysis of variance revealed significant mean squares of variety, rootstock and their interaction effects for the elements in leaves. Citrumelo rootstock had mainly effect on nutritional elements in leaves. Unshiu mandarin with Citrumelo rootstock had the most amount of nitrogen and sanguine variety with Citrange rootstock made the highest concentration of phosphorus and potassium in leaves of the grafted cultivar. Significant positive correlation of K with Fe and Zn indicating that all rootstocks with high mean value of K in leaf of grafted cultivar will have high amount of Fe and Zn. Significant positive correlation also detected between N and P of leaf of grafted cultivars in combination with different rootstocks; therefore, most of combinations with high mean value of N had also high mean value of P. Unshiu Tangerine had high variation for P, but Thomson Novel had lowest variation for this mineral element. Due to Significant positive correlation of S with Mg and Mn, most of rootstocks with high amount of S in leaf of grafted cultivar had high mean values of Mg and Mn in their leaf of grafted cultivars.
PARTICIPATION OF RURAL WOMEN IN EXPLOITATION OF NON-TIMBER FOREST PRODUCTS AS A MEANS OF SUSTAINABLE LIVELIHOOD IN SOUTHWESTERN NIGERIA
Authors: BAMIWUYE O. A. , ADISA B. O. , ADELOYE K. A. , FAMAKINWA M.
Published: March 2021

The study examined the participation of rural women in exploitation of non-timber forest products (NTFPs), as a means of sustainable livelihood in Southwestern Nigeria. A number of 320 respondents were interviewed through pre-tested structured interview schedule in the four purposively selected forest reserves using a multistage sampling procedure. Data collected were presented using appropriate descriptive and inferential statistics. The mean age and mean year of experience in NTFPs exploitation were 40.9 ± 11.5 years and16.4±3.4 years, respectively. NTFPs participated by the respondents in the study area were palm fruits, vegetables, snails and fire wood among others. Actor categories identify in the NTFPs business chain were collectors, processors, traders among others. In addition, majority of the respondents show willingness to continue in NTFPs exploitation irrespective of alternative livelihood. The findings revealed that age (t=2.39), number of hours of collection per week (t=3.48), years of experience of NTFPs exploitation (t= -3.88) and external orientation (t=2.20) of respondents significantly contributed to their participation in NTFPs exploitation. The study concludes that participation in NTFPs exploitation by the respondents was moderate. It was recommended that more enlightenment programmes should be organized by relevant stakeholders for the rural women to create awareness on the income generation opportunities that abound in the NTFPs activities.
THE YIELD AND QUALITY PROPERTIES OF CHICKPEA SEEDS (CICER ARIETINUM L.) AFFECTED BY HARVEST TIMES
Authors: GÜRSOY S.
Published: March 2021

Harvesting of chickpea (Cicer arietinum L.) seeds at right time of maturity is one of the important issues because pod dropping and shattering is a major problem during harvest. Also, the physical properties of chickpea seeds can be affected by harvest time. For this purpose, a field experiment was carried out to examine the effects of harvest times after physiological maturity on the seed yield per plant and the seed quality properties in chickpea production. The treatments used in the experiment consisted of five harvest times, which chickpea pods were harvested at physiological maturity (H1) and 5, 10, 15, and 20 days after physiological maturity (H2, H3, H4 and H5, respectively). The physiological maturity time (R7) was considered as the stage that leaves start to yellow and 50% of pods are yellow. Moisture content, dimension properties, hundred seed weight, true density, bulk density and porosity and seed yield per plant was determined in the study. The results showed that all measured variables were affected by harvest time. The true density and porosity increased with delayed harvest time. But, the other measured variables decreased when harvest was delayed.
ADAPTIBILITY PERFORMANCES OF CHICKPEA (CICER ARIETINUM L.) GENOTYPES UNDER DIFFERENT ENVIRONMENTS FOR STABILITY OF QUANTITATIVE TRAITS
Authors: AZAM M. G. , HOSSAIN M. A. , HOSSAIN J. , HOSSAIN M. A. , ALI M. O.
Published: March 2021

The evaluation and computation of yield stability of a genotype over environments is a critical component of a certain breeding program. The present study was intended to screen 11 advance chickpea (Cicer arietinum L.) genotypes and one check for genotype × environment interaction (G × E) at six locations with varying micro and macro climatic conditions for yield correlated phenotypic characters. A number of 11 advanced genotypes of chickpea and one check variety were assessed for their adaptability at six different locations of Bangladesh. The randomized complete block design (RCBD) with three replications was chosen to experiment. The means were used to compute Additive Main Effects and Multiplicative Interaction (AMMI) analysis of variance, followed by regression analysis to measure × E. The regression analysis showed significant genotype × environment interaction for all the phenotypic characters. The mean values of days to flowering, days to maturity, plant height, number of pods per plant and seed yield were highly significant for linear, as well as non-linear components of G × E. Chickpea yield was significantly (p< 0.01) affected by genotypes, the environments and G × E interaction, indicating that the varieties and the test environments were diverse. G × E was further partitioned by principal component axes. The first two principal components cumulatively explained 86.59% of the total variation, of which 53.34% and 33.25% were contributed by IPCA1 and IPCA2, respectively. The AMMI stability value discriminated genotypes G2 (BCX 09010-9), G3 (BCX 09010-2) and G8 (BCX 01008-4) the stable genotypes. The investigated genotypes exhibited varying adaptability in different environments. Genotypes G3 (BCX 09010-9) and G9 (BCX 01008-3) were stable genotypes with high yield over a wide range of environments are promising candidate chickpea varieties.
CONSIDERING SOIL WATER CONTENT, NUTRIENTS MOVEMENT, PHENOLOGY AND PLANT GROWTH WITH REFERENCE TO DEVELOPMENT OF FUNCTIONAL FOODS IN A LYSIMETER STUDY
Authors: SHAHRAJABIAN M. H. , KHOSHKHARAM M. , SOLEYMANI A. , SUN W. , CHENG Q.
Published: March 2021

Lysimeter is equipped with mechanisms for weighing by load cells enable automated measurements, and the signals resulting from weight changes in the system due to evaporation that are generally recorded in a data acquisition system. According to methods of measuring water content, lysimeters may be divided into weighing lysimeter and non-weighing lysimeter. The weighing lysimeters provide scientists the basic information for research related to evapotranspiration, and they are commonly divided into two types, continuous weighing and intermittent weighing. Weighing lysimeters have been used to quantify precipitation (P) not only in the form of rain or snow, but also dew, fog and rime, and also to determine actual evapotranspiration (ET). Compared to laboratory experiments, out-door lysimeter studies have advantages, like being closer to field environment conditions, it is possible to grow plants and therefore to study the fate of chemicals in soil/plant systems, transformations and leaching. The limitations are costy, which depend on design, variable experimental conditions, such as environmental/ climatic parameters, which are normally not controlled, the soil spatial variability is normally less, they are not suitable for every plant species and even every soil type. The objective of lysimeter is defining the crop coefficient (Kc), which used to convert ETr into equivalent crop evapotranpiration (ETc) values, and determing agronomical characteristics of crops, which are planted in the field of lysimeter. The duration of a lysimeter study is determined by the objective of the study, but for different crops, it should normally be at least two years. Weighing lysimeters using load cells have the advantage of measuring the water balance in the soil over a short time and with good accuracy. Precipitation should be recorded daily at the lysimeter site. All weather data like air temperature, solar radiation, humidity and potential evporation should be obtained onsite, and the frequency and time of measurements should be at least daily.
AGROCHEMICAL EVOLUTION OF THE CHERNOZEMIC SOIL IN THE SUPERFICIAL HORIZON BY DIFFERENTIATED NITROGEN FERTILIZATION
Authors: JIPA ADINA PETRUȚA , MURARIU DANELA
Published: March 2021

Soil fertility, upon which plant growth and hence crop yield and quality depend, embraces its content of plant food (nutrients), its organic matter content, its structure, its ability to supply water and its depth. Excessive use of fertilizers with nitrogen products of ion nitric accumulation in the soil (temporary) and in plants, which disturbs the balance of photosynthesis, causes the appearance of necrosis and burns on leaves, severe intoxication and even death by asphyxiation phenomena and cyanosis at ruminants, children and old people. One of the ways of soil pollution through agricultural technology is over-fertilization and, in particular, the administration of high doses of nitrogen fertilizers. Excess of nitrogen fertilizers, as well as their empirical application, have negative effects on harvest quality. The main aim of this study was to determine the effect of five nitrogen levels and different type of fertilizers on the agrochemical evolution of the chernozemic soil in the superficial horizon. Field experiments were conducted at the Agricultural Research and Development Station (ARDS) Suceava, Romania, in two growing seasons (2017 and 2018) with five nitrogen levels (80 kg/ha, 120 kg/ha, 160 kg/ha, 200 kg/ha and 240 kg/ha) and two type of nitrogen fertilizers (ammonium nitrate and urea).
SEED GERMINATION AND SEEDLING ESTABLISHMENT OF CHERIMOYA
(ANNONA CHERIMOLA MILL.) AT DIFFERENT TEMPERATURES
Authors: KHELOUFI A. , MANSOURI L. M. , KHETTACHE H.
Published: March 2021

Cherimoya (Annona cherimola Mill.) has an exceptional flavor and aroma, which makes it a fruit with great potential. However, little is known about its propagation by seeds. According to the scientific literature, the germination of cherimoya seeds is affected much more by external conditions than by internal conditions. Germination of cherimoya variety ‘Concha Lisa’ were tested for germination at constant temperatures of 25, 30, 40°C, and at room temperature, varying from 20-25°C, coupled with total darkness. Seeds were sown in Petri dishes (0.8% agar water), for 25 days of incubation. The kinetics of germination was determined according to five closely related parameters, viz. final germination percentage (FGP), mean germination time (MGT), coefficient of velocity of germination (CVG), time to 50% germination (T50) and seedling length (SL). The temperature of 30°C was found optimally suitable with 70.8% FGP, 17.5 days MGT and 3.91 cm SL, while the room temperature of 20-25°C slightly improved germination with only 25% FGP. Furthermore, significant decrease in FGP and SL was observed at 25°C and 40°C of temperature in comparison to 30°C. The analysis also revealed that cherimoya seed germination, day 10-15 after seed sowing is suitable for final counts. An overview on the emergence of cherimoya seedlings, during a 12-week period in pots is presented.
RICE FARMERS’ PERCEPTION AND KNOWLEDGE OF INTEGRATED RICE AND FISH FARMING IN SELECTED LOCAL GOVERNMENT AREAS OF KWARA STATE
Authors: OLABODE Deborah , OMOTESHO Kemi , OLABANJI Oluwafemi , OGUNLADE Israel , ADEBISI Oluwatosin
Published: March 2021

In spite of the numerous advantages associated with integrated rice and fish farming, deliberate adoption of this technique is still insignificant. This study examined rice farmers’ perception and knowledge of integrated rice and fish farming practice in Kwara State. A three-stage sampling procedure was used to select 149 rice farmers, while data was obtained through the use of a well-structured structured interview schedule. Data were analysed using descriptive statistics and the Pearson’s Product Moment Correlation (PPMC). The results show that 81.9% of the respondents were male with mean age of 38 years and an average of 14 years farming experience. Given the average mean score of 3.04 respondents had a positive perception of integrated rice and fish farming, while 63.8% of the respondents had moderate knowledge. Farmers’ identified high cost of irrigation materials (M.S.=2.59), poaching (M.S.=2.59), flooding (M.S.= 2.55) as major constraints to the practice of integrated rice and fish farming. Farmers’ perception had a significant relationship with knowledge of integrated rice and fish farming at p<0.05 level. Also, farmers’ age (r=0.300, p<0.000), level of education (r=0.287, p<0.000), farming experience (r=0.220, p<0.007), membership of cooperative society (r=0.176, p<0.032) and extension contact (r=0.204, p<0.013) had significant relationship with the knowledge level. The study concluded that the rice farmers had moderate knowledge and positive perception of integrated rice and fish farming. There is a need to provide incentives, such as irrigation facilities to farmers and provision of adequate training on integrated rice and fish farming in order to fully maximize the potentials therein.
RURAL HOUSEHOLDS’ PERCEPTION OF VITAMIN A BIOFORTIFIED CASSAVA AND ITS PRODUCTS: IMPLICATIONS FOR FOOD SECURITY
Authors: ALABI Dorcas Lola , ARIBIFO Damilola Leah , OLUYEMI Oluwatomiwo Elizabeth
Published: March 2021

The paper examined the perception of rural households about vitamin A biofortified cassava and its products in Osun State, Nigeria. Multistage sampling procedure was used to select 50 households’ members. Quantitative data were collected on the respondents’ personal and socio-economic characteristics, their awareness on vitamin A biofortified cassava, their perception about the crop and its products, as well as the constraints affecting its acceptability in the study area. Data were described using frequency counts, percentages, means and standard deviation and inferential statistics, like Pearson Product Moment Correlation and Chi-square analyses. Results showed that the respondents had a mean age of 52.62 ± 14.30, while 82% of them were married. 74% of the respondents had heard of Vitamin A bio fortified cassava, 64% had seen it while 44% had planted it with 54% having positive perception towards the crop and its products. Poor transport facilities (mean = 3.16) and difficulties in getting planting materials (mean = 2.36) ranked highest among the constraints affecting acceptability of the crop in the study area. There exist significant association between the respondents’ marital status and their perception about vitamin A biofortified cassava. It was concluded that majority of the respondents have positive perception towards vitamin A biofortified cassava and its products. It was recommended that extension personnel should create more awareness about the nutritional value of the crop and its products to enhance better food security status among rural households.
DOES CREDIT ACCESS IMPROVE ADOPTION INTENSITY OF IMPROVED MAIZE SEED VARIETIES?
Authors: KEHINDE Ayodeji Damilola
Published: March 2021

This study investigated the effect of credit access on the adoption intensity of improved maize varieties in Osun State. A number of 150 maize farmers were selected through a multistage sampling procedure from using a structured questionnaire. Descriptive statistics, adoption index, and Tobit regression model were used to analyse the data collected. The results showed that Majority of maize farmers were over 40 years (52.6%), male (87%), and married (87%). The result also showed that majority of the farmers did not adopt improved maize varieties (55%) in the state. Swan 1 improved variety was majorly adopted (87.1%), while DMR-ESR-W variety was less adopted (62.9%) in the State. Just a few of maize farmers had access to credit in the State (20%). The mean adoption intensity in the State was observed to 62%. Based on adoption intensity of improved maize varieties, adopters were classified as partial adopters (65%) and full adopters (35%). Tobit regression estimates showed that credit access, household size, secondary occupation, years of education and extension contact have significant effect on the adoption intensity of improved maize varieties. In accordance with the findings, we therefore recommend that microfinance institutions should look attentively at scaling up their credit services to enhancing adoption intensity of improved maize varieties.
SUSTAINABLE MANAGEMENT OF MANGO NUTRITION FOR BETTER YIELD AND QUALITY
Authors: KHAN Muhammad , AHMED Niaz
Published: March 2021

Optimum supply of macro and micronutrients is of critical importance in improving the yield and quality of horticultural crops. Alike, the quality and yield of mango plants significantly increase by balanced application and uptake of macro and micronutrients. However, soil type and characteristics are important factors that directly influence the bio-availability of these nutrients to the plants. In addition, variability in climate has an impact on mango yield in the current scenario. Many scientists have found that mango cultivation in saline soils is a major obstacle to achieving the desired yield and improving quality. Overdose of fertilization is the major factor for the development of saline soils, furthermore, rise in climate temperatures is also a major factor. Therefore, to overcome this problem, nutrient management and the use of balanced fertilizer are the important factors to be controlled. Thus, this review focuses on the performance and importance of essential macro and micronutrients to improve the yield and quality of mango fruits. To understand the effective use of macro and micronutrients, the positive and negative impacts of the nutrients are explained. It is suggested that analyzing the soil, mango fruits, and mango plant leaves for their nutrient status can be useful to formulate fertilization strategies for higher fruit production and quality. Research and development, along with agricultural extension, should focus more on introducing genetically effective mango varieties to improve nutrient and water utilization efficiency.
Effects of Dietary Isoleucine Levels on the Growth Performance, Feed Utilization, and Serum Biochemical Indices of Juvenile Golden Pompano, Trachinotus ovatus
Authors: Huang Zhong , Lin Hei-Zhao , Peng Jing-Shu , Tan Xiao-Hong , Zhou Wen-Chuan , Zhou Chuan-Peng , Lei Mei-Hua
Published: March 2021

A 56-day growth trial was conducted to determine the isoleucine requirement of juvenile Trachinotus ovatus. Six diets with different concentrations of L-isoleucine (13.2, 15.7, 18.2, 20.7, 23.2 and 25.7g/kg dry diet, defined as diet Ile-1, diet Ile-2, diet Ile-3, diet Ile-4, diet Ile-5 and diet Ile-6, respectively) were formulated to contain 430g/kg crude protein with fish meal, soybean meal, peanut meal, and pre-coated crystalline amino acids. Each diet was randomly assigned to triplicate treatments of 20 fish (initial body weight 6.36±0.03g) in seawater floating net cages. Results indicated that weight gain increased with increasing isoleucine concentrations up to 18.2g/kg, whereas diets containing higher isoleucine concentration reduced the growth performance significantly (P<0.05). The highest muscle protein content, protein efficiency ratio, body protein deposition, viscerasomatic index, hepatosomatic index, and lowest feed conversion ratio, serum AST activities were also found in 18.2g/kg dietary isoleucine treatment (P<0.05). The highest lipid content of whole fish was found in 15.7g/kg dietary isoleucine treatment (P<0.05). Survival rates in treatments Ile-5 and Ile-6 were significantly lower (P<0.05) than those in other treatments. Results of polynomial regression based on weight gain, feed conversion ratio, protein efficiency ratio and body protein deposition indicated that the optimal dietary isoleucine requirement for Trachinotus ovatus reared in seawater floating netcages was 17.39-17.50g/kg isoleucine of dry diet, correspondingly 40.4440.70g/kg of dietary protein.
PERCEPCIÓN DE LA SUSCEPTIBILIDAD SOCIAL ANTE EL CAMBIO CLIMÁTICO EN LA CIUDAD DE PORTOVIEJO
Authors: Guillén Meza Sandy Alexandra , Cárdenas Baque Daniel Alejandro , Mendoza Loor Javier Andrés , Loor Vélez Junior Julio , Lucio Villacreces Luis Fernando
Published: March 2021

La afectación y adaptación al cambio climático es un fenómeno que agudiza los problemas sociales ya existentes. Por ello en el presente estudio se analizó e identifico la percepción de la susceptibilidad  social ante el cambio climático en el cantón Portoviejo de la provincia de Manabí, Ecuador. La evaluación de la percepción se analizó a través de componentes sociales, económicos y ecológicos. Se realizó un estudio cuantitativo, descriptivo y analítico basado en encuestas vía online para recabar información sobre la susceptibilidad por servicios básicos, susceptibilidad por ingresos económicos y susceptibilidad por vivienda. Los resultados arrojaron que la susceptibilidad  dio como consecuencia que la población en general se verá afectada por este fenómeno y que el mayor impacto recaerá sobre las familias que son de escasos recursos económicos por la poca capacidad de adaptación y de conocimiento hacia este fenómeno.
EFECTOS DE LA CONTAMINACION PROVOCADA POR LA INDUSTRIA ATUNERA EN EL SECTOR LOS ESTEROS DE LA CIUDAD DE MANTA
Authors: López Alcívar Gina Fernanda , Cevallos Marcillo Génesis , Menéndez Mero Stefany Yuletzy , Vásquez Sánchez Luis Ricardo
Published: March 2021

La ciudad de Manta cuenta con una ubicación geográfica privilegiada que la convierte en el principal puerto atunero, por lo cual el desarrollo está ligado a la actividad pesquera que realizan sus habitantes. La presente investigación, tiene el objetivo de determinar el impacto de la contaminación provocada por una industria atunera que está ubicada en la zona céntrica de Manta y que a su vez tiene una alta densidad de población en sus alrededores. La metodología utilizada fue exploratoria, cuantitativa y cualitativa, centrándose inicialmente en la investigación bibliográfica, levantamiento de una encuesta y tratamiento de los datos de los distintos factores que afectan a la población que habita alrededor de los límites de esta. Tomados en conjunto, los resultados más relevantes de este estudio indican que 38,7% han sido afectados de forma permanente, un 32,8% se encuentra a más de 300 m, seguido de un 20% entre 100 y 200 m, un 19,3% entre 50 y 100m, 17,1% más de 200 y 300 finalmente un 11,4% menos de 50 m de la fábrica, estas distancias guardan una gran relación con la percepción de olores, en los que un 33,6% se encuestados señalan que son casi insoportables, un 24, 1% están en una línea intermedia y un 6.6% creen que son soportables. Se determinó con la realización de una proyección que el lugar en donde está ubicada esta empresa al posicionarse pudo haber sido el propicio ya que tiene más de 45 años en funcionamiento, pero con el crecimiento demográfico se convirtió en una localización inadecuada, sin embargo, la población del sector está expuesta a fuentes fijas de contaminantes atmosféricos de todo tipo, lo cual genera molestias que fueron claramente expresadas resultando ser de gran relevancia para poner en perspectiva la investigación con las opiniones de los protagonistas afectados.
ACTIVITY OF THE MINISTER OF INTERNAL AFFAIRS А.A. ZAKREVSKY ON ENSURING EPIDEMIOLOGICAL SAFETY IN THE RUSSIAN EMPIRE
Authors: Байкеева С.Е. , Мишина Е.В. , Проценко Е.Д.
Published: March 2021

В статье рассматривается система мероприятий, реали-
зованных А.А. Закревским на посту министра внутренних дел Российской импе-
рии по предотвращению эпидемий и стабилизации эпидемиологической ситуа-
ции в стране.
Авторы, исходя из того, что высокая смертность населения Российской
империи в начале XIX в. объясняется распространением инфекционных заболе-
ваний, когда болезни выкашивали население целых населенных пунктов, счи-
тают, что обращение к изучению этой проблематики способствует лучшему
пониманию причин и смысла тех политических и социальных катаклизмов,
которые были связаны, в том числе, и с распространением эпидемий в России
в обозначенный период.

The article discusses the system of measures implemented by A.A. Zakrevsky
as Minister of internal Affairs of the Russian Empire to prevent the spread of cholera
and stabilize the epidemiological situation in the country.
The authors, proceeding from the fact that the high mortality rate of the population
of the Russian Empire at the beginning of the XIX century is explained by the spread of infectious
diseases, when diseases mowed down the population of entire settlements, they
believe that turning to the study of this problem contributes to a better understanding of
the causes and meaning of those political and social cataclysms that were associated,
among other things, with the spread of epidemics in Russia during the indicated period.
THE ROLE OF MASS MEDIA IN FOREIGN COUNTRIES: ANALYSIS AND ACCEPTANCE OF FOREIGN EXPERIENCE
Authors: Ивлиев П.В.
Published: March 2021

Аннотация. В данной статье рассматривается нормативно-правовая
база, регулирующая деятельность средств массовой информации зарубежных
стран. Затрагиваются острые проблемы взаимодействия СМИ с органами
власти в иностранных государствах.
Поднимаются вопросы взаимодействия частного капитала со средст-
вами массовой информации в других государствах.
Выявляются проблемы взаимодействия органов государственной вла-
сти со СМИ в зарубежных странах и тем самым предлагается учитывать
данный опыт иностранных государств в Российской Федерации.

Annotation. This article examines the legal framework governing the activities of
mass media in foreign countries. The acute problems of interaction between the media
and the authorities in foreign countries are touched upon. The questions of interaction of
private capital with mass media in other states are raised. The problems of interaction of
state authorities with the media in foreign countries are identified, and thus it is proposed
to take into account this experience of foreign states in the Russian Federation.
HOMEOSTATIC MODELING OF DIAGNOSTICS AND MANAGEMENT OF THE RULE-MAKING ACTIVITY AS AN ELEMENT OF LEGAL ENSURING OF FOOD SAFETY
Authors: Махмудова А.С.
Published: March 2021

Аннотация. В статье представлен авторский подход к диагностике
и управлению нормотворческой деятельности в рамках правового обеспечения
пищевой безопасности, с использованием простой и развернутой моделей
компенсационного гомеостата, которые позволяют выявить противоречия
между нормотворческой деятельностью и другими элементами системного
объекта, и определить возможные режимы взаимодействия между ними.
Это позволит осуществлять диагностику и соответствующее эффективное
управление нормотворческой деятельности в сфере обеспечения пищевой
безопасности, с целью определения основных направлений для его совершен-
ствования.

Annotation. The article presents the author`s approach to diagnostics and management
of the rule-making activity within the framework of legal ensuring of food safety using
a simple and expanded models of a compensational homeostat, which allows to identify of
the contradictions between the rule-making activity and other elements of the system object,
and to define the possible modes of interaction between them. This will make it possible
to carry out, diagnostics and appropriate effective management of the rule-making activity
in the field of ensuring food safety in order to determine the main directions for its improvement.
FROM ANCIENT NATURAL AND SOCIAL VALUES TO THE STATE-LEGAL CIVILIZATION
Authors: Юнусов А.А. , Юнусов М.А. , Ахвердян А.Г.
Published: March 2021

Аннотация. Право и государственные институты существовали не все-
гда. Чтобы прийти к такому цивилизационному состоянию данные ценности
развивались несколько тысячелетий. Примерно семь тысяч лет тому назад
возникли первые государственные формирования на Ближнем Востоке. Право
приобретало свое современное качественное состояние, опираясь на обычаи,
традиции, морально-этические нормы, естественно-нравственные источни-
ки общества. Позже они стали координироваться и возводиться в ранг рели-
гиозных канонов. После длительного эволюционного развития социочеловече-
ские нормы выражались в праве, законодательстве и других нормативных
правовых актах государства. Таким образом, на смену древних социально-
цивилизационных ценностей пришли современные государственно-правовые
институты.

Annotation. Law and state institutions did not always exist. To reach such a civilizational
state, these values have evolved for several millennia. About seven thousand
years ago, the first state formations arose in the Middle East. The law acquired its modern
qualitative state, relying on customs, traditions, moral and ethical norms, natural and
moral sources of society. Later they began to be coordinated and elevated to the rank of
religious canons. After a long evolutionary development, socio-human norms were expressed
in law, legislation and other regulatory legal acts of the state. So, modern state
and legal institutions have replaced the ancient social and civilizational values.
The COVID-19 pandemic in the Middle East and North Africa. Old demons in a new bottle
Authors: Górak-Sosnowska Katarzyna
Published: March 2021

The paper presents the strategies of Middle East and North African countries in coping with COVID-19 pandemic in the first months of spring/summer 2020. It offers a categorisation of strategies basing on the available assets the countries have and political situation. According to this categorisation there are countries in which the pandemic is one more burden to bear that makes the current political or economic situation even worse (countries torn by war or serious internal social conflicts); countries that cope with the pandemic as good as it gets – taking their institutional capacities (Egypt and Morocco); the too rich to fail category of GCC countries, and two possible success stories (by that time Jordan and Tunisia).