bluuebunny/crossref_metadata_2025 huggingface dataset:
External Bremsstrahlung Studies on Films of Lead Monoxide Filled Polycarbonate Composite
Authors: Kandagal V. A. , Lobo B.
Published: August 2023

The development of high-Z (high atomic number) radiation shielding materials is vital in order to protect personnel who work with harmful gamma radiation sources. At the same time, the emission of external bremsstrahlung (EB) radiation in those shielding materials when the radiation source emits beta particles as well as gamma radiation is also of prime concern.The production of EB in films of lead monoxide (PbO) loaded polycarbonate (PC) composite at eleven different filler levels (FLs) varying, in terms of weight fraction, from 0.0 % up to 10.0 % were investigated experimentally by using beta particles from strontium-90/yttrium-90 (90Sr/90Y) radioactive source. A nonlinear relation is observed between EB intensity and target thickness. The effective atomic numbers of the prepared PbO-filled PC composite films (at different FLs) were determined via EB measurements, followed by calculations, and the values obtained were compared with the modified atomic numbers which were determined for the same composite films (at different FLs) using the Markowicz and Van Grieken equation, and it was found that they are in good agreement. Finally, the atomic number dependence of EB in these composite films (PbO-filled PC composites) has been studied. It is obtained that the intensity of EB spectra depends on the square of the atomic number of the target material.
Unraveling the Hybridization Process in CeAgSb2 Kondo Lattice
Authors: Pei Yunhe , Yang Surui , Qi Jingbo
Published: August 2023

We present a comprehensive investigation utilizing ultrafast optical pump-probe spectroscopy to elucidate the intricate quasiparticle dynamics in the CeAgSb2 single crystal. Through our experimental endeavors, a nuanced two-phase evolution in the hybridization phenomena linking localized f moments and conduction electrons has been unveiled. This intricate process is manifest in two distinct manifestations: firstly, the discernible manifestation of hybridization fluctuations spanning the temperature range of approximately 150 K (denoted as T†) down to approximately 65 K (referred to as T*); secondly, the notable emergence of a collective hybridization phenomenon below the critical temperature, T*, as indicated by the onset of an indirect gap in the electronic structure. These discerning observations provide invaluable insights into the interplay of electronic configurations as a function of temperature in CeAgSb2, shedding light on its unique properties and behaviors.
Research on Scheme Design and Structure Optimization of High Speed and High Precision Vehicle Contour Detection Platform
Authors: Zhang Nutao , Bai Qingping , Huang Bo , Zhou Qian
Published: August 2023

To improve road traffic safety and reduce the incidence of unauthorized vehicle modifications, overloading, and oversizing, this study proposed a detection platform structure to support the quick measurement of key dimensions and high-precision reconstruction of local features using the automotive contour size system. Using CAE technology, static and dynamic characteristic analysis was performed on the platform structure, and optimization design was conducted on the column frame and gantry frame separately. The optimized column frame's first-order modal frequency increased by 243% from 5.16 Hz to 17.65 Hz, with an average optimization ratio of 187% for the first six modal frequencies. For the optimized gantry frame, the average optimization ratio of the key node displacement exceeded 46%, with the first-order modal frequency increasing by 13% from 36.43 Hz to 41.33 Hz, and an average optimization ratio of 21% for the first six modal frequencies. Ultimately, the optimized detection platform's key nodes achieved an average optimization ratio of nearly 60%, with the first-order modal frequency increasing by 240% from 5.16 Hz to 17.57 Hz and an average optimization ratio of 185% for the first six modal frequencies. The optimized platform structure provides robust support for the high-speed and high-precision vehicle contour detection system's implementation.
Aplicaciones de la fluorescencia con verde de indocianina en anastomosis de cirugía colorrectal: una revisión bibliográfica.
Authors: Ordoñez-Hidalgo Emily Ximena , Verdugo-Tapia Juan Carlos
Published: August 2023

Introducción: Durante una cirugía intestinal uno de los desafíos más importantes es mantener la vitalidad intestinal determinando su viabilidad para evitar complicaciones como resección intestinal (1). La fuga anastomótica (LA) sigue siendo la complicación más temida, con una frecuencia de hasta el 30% en centros de no gran volumen (2).  La angiografía con fluorescencia ICG podría ser un método objetivo y no invasivo para evaluar la viabilidad intestinal y determinar correctamente la extensión de la isquemia (3). Objetivo general: Analizar la eficacia de la aplicación de la fluorescencia verde de indocianina en la cirugía de colon y recto mediante una revisión bibliográfica. Metodología: Revisión bibliográfica tipo narrativa en estudios, metaanálisis, revisiones sistemáticas, ensayos clínicos controlados, estudios de cohortes, revisiones bibliográficas que reporten el papel de la fluorescencia verde de indocianina en la cirugía colorrectal desde 2018 a 2023, en los idiomas inglés y español. Resultados esperados: Se espera eficaz la aplicación de la fluorescencia verde de indocianina en la cirugía de colon y recto.
Proyectos pedagógicos productivos para el proceso de aprendizaje en estudiantes de las instituciones educativa técnica
Authors: Mendoza-Solórzano Karla Gema , Román-Cao Eldis
Published: August 2023

El estudio tiene como objetivo diseñar un Proyecto Pedagógico Productivo para favorecer la integración del área disciplinar, pedagógica y productiva en la formación del estudiante de la Unidad Educativa Dr. Odilón Gómez Andrade. La metodología es cuantitativa con un diseño de tipo descriptivo. Como proceder metodológico, se aplicó un cuestionario a docentes y directivos y una observación no participante a clase; la población estuvo conformada por catorce docentes y dos autoridades. Los datos obtenidos de la aplicación del cuestionario se analizaron mediante el paquete estadístico SPSS y los de la observación se describieron sobre la base de las variables relevantes. La encuesta proporcionó percepciones, actitudes y opiniones acerca de los proyectos pedagógicos productivos, permitiendo la identificación del nivel de conocimiento de los participantes en relación con el tema en estudio. La observación brindó un entendimiento detallado de la eficacia de las estrategias de enseñanza empleadas por los docentes y cómo se relacionan con la implementación de proyectos de esta naturaleza. Los resultados apuntan hacia la necesidad de explorar alternativas para la implementación efectiva de proyectos pedagógicos productivos como estrategias de enseñanza y aprendizaje en el módulo formativo de formación agropecuaria. Estos resultados contribuyen al debate sobre la mejora continua de los enfoques educativos y resaltan la importancia de integrar aspectos pedagógicos y productivos para una formación más completa y enriquecedora.
Estrategia didáctica para mejorar el dominio afectivo de las matemáticas en estudiantes de Educación Básica
Authors: Vélez-Medina Carolina Elizabeth , Caballero-Vera Hernán Humberto
Published: August 2023

En los últimos años la enseñanza de las matemáticas se volvió altamente relevante, hasta el punto de que en la actualidad cuenta con múltiples campos de aplicación, debido a que fue incluida en todas las carreras universitarias a nivel nacional, por tal motivo el objetivo del presente artículo es elaborar una estrategia didáctica para mejorar el dominio afectivo de las matemáticas en estudiantes de Educación Básica superior. La metodología consiste en un estudio descriptivo, donde como instrumento de recolección de información se realizaron instrumentos de encuestas a estudiantes de noveno año de educación básica superior.  Como resultado con el análisis previo se destaca la dificultad de los estudiantes para identificar ciertos temas matemáticos y resolverlos con gran facilidad, sin embargo, mediante la implementación de las estrategias didácticas diseñadas, se logró superar dichas dificultades. La conclusión en base en lo anterior, se mencionan algunas opciones temáticas desde donde se pueden diseñar y poner en marcha investigaciones con cuyas estrategias se espera contribuir con la práctica, el desarrollo y la teoría relacionada con la Educación matemática ligada con dichos factores del dominio afectivo.
ANÁLISE DA APLICAÇÃO DA GAMIFICAÇÃO NA EDUCAÇÃO AMBIENTAL ATRAVÉS DE UMA REVISÃO NARRATIVA DOS PERIÓDICOS CAPES E GOOGLE ACADÊMICO
Authors: De Souza Júnior João Bosco Ferreira , Moreira Elisa da Silva , Level Inaê Nogueira , Pinho José Alberto do Nascimento , Guimarães Graciela Cristina Melo , De Melo Evanjeffson Santos , De Menezes Jorge Almeida
Published: August 2023

O texto aborda a utilização da gamificação como uma estratégia eficaz para engajar os alunos em questões ambientais e estimular a transformação da conduta em relação ao meio ambiente. A gamificação pode ser utilizada em atividades escolares voltadas para a (EA), desde jogos didáticos até programas de premiações, proporcionando uma aprendizagem mais interessante e envolvente. A pesquisa busca avaliar o uso da gamificação na EA e fornecer orientações aos educadores interessados em utilizar essa estratégia em suas atividades educacionais. O trabalho descreve uma revisão narrativa sobre a utilização da gamificação na EA, realizada por artigos disponíveis nas plataformas Capes e Google Acadêmico entre os anos de 2018 e 2022. A revisão resultou em uma síntese dos principais achados e recomendações para educadores interessados em utilizar a gamificação na EA. O estudo analisou 10 artigos relevantes sobre o uso da gamificação na EA, com o objetivo para identificar as principais conclusões e tendências na literatura. Foram apresentadas definições de gamificação de diferentes autores, que têm em comum o uso de elementos dos jogos. Os pesquisadores concordam que a gamificação é uma técnica pedagógica eficaz que incorpora elementos de jogos para motivar e envolver os estudantes. A maioria dos artigos analisados é brasileira e escrita em português. Alguns autores propõem jogos educativos para conscientização ambiental, enquanto outros avaliam a participação dos alunos em plataformas gamificadas. Em resumo, a análise dos estudos confirma a gamificação como uma ferramenta promissora para melhorar o envolvimento dos alunos na EA.
Ecological effects of salinization on soil physico-chemical characteristics and dry matter partitioning in arid region of Northwestern China
Authors: YAN WANG , LIN ZHAO HA , YONG ZHAO XUE , CHEN PAN CHENG
Published: August 2023

The research aimed to quantify the change processes of soil physico-chemical characteristics and partitioning of dry matter in alfalfa and barley in farm salinization in saline area of Northwestern China. The experiment was carried out by taking different salinization stage plots under Hordeum vulgare L. and Medicago sativa L. grown fields as the study objects, and by using the method of replacing time with space. Results were as follows: 1) Compared to non- saline plot, soil bulk density was increased by 3.00%, 4.54%, 8.62% and 9.96%, respectively in slightly, moderately, severely and very severely salinized plot in alfalfa grown field, whereas for barley grown field, the change of soil bulk density had no obvious trend in corresponding salinized gradient plots. Soil temperature of different salinized gradient plots in alfalfa grown field showed a low-high-low fluctuation, while that of barley grown field was increased. In the two farmlands, soil organic matter and alkali-hydrolyzable nitrogen were all significantly decreased, and the rate of decrease were faster in soil depth of 0-10 cm than that in soil depth of 10-20 cm, but soil organic matter and alkali-hydrolyzable nitrogen in alfalfa grown field was in the following order: slightly salinized plot (S1)>non-saline plot (CK)>moderately salinized plot (S2)>severely salinized plot (S3)>very severely salinized plot (S4); for barley, it was in the following order: CK>S1>S2>S3>S4, and there had different significant difference between different salinized plots under the two farmlands; 2) In growing seasons, different salinization gradient plots had different soil depths of salt accumulation and appearing the peak of average soil ECP under the two crops farmlands. In the composition of soil soluble salt ions and ratio, the same salinized gradient plots between the two crops farmlands were similar; but in alfalfa grown field, the ratios of Cl- and Na++K+ in CK and S1 were significantly lower than that of CK and S1 in barley grown field, and the change ranges of different ions from CK to S4 were higher than that of barley; 3) In dry matter accumulation and distribution traits, at any given growth stage, along salinization gradient increased, plant total dry matter was more distributed to leaves and roots and center of accumulation and distribution of dry matter in the plant in different salinization gradients was gradually slowly than CK plant. And salt stress made the dry matter partitioning ratio of total shoot of the two crops be gradually reduced and root/shoot ratio increased.
Field efficacy evaluation and standardization of dose of a novel molecule, etoxazole 10% SC (w/w) against the red spider mite, Tetranychus cinnabarinus infesting brinjal (Solanum melongena)
Authors: MISRA H P
Published: August 2023

A field experiment was conducted at the Central Research Station farm of Orissa University of Agriculture & Technology, Bhubaneswar, Odisha, India during summer seasons of 2010 and 2011 to evaluate the field efficacy and find out the correct dose of a novel molecule etoxazole 10% SC (w/w) for management of the red spider mite, Tetranychus cinnabarinus (Boisd.) infesting brinjal (Solanum melongena L.). The chemical etoxazole was evaluated @ 10, 25, 40 and 55 g a.i./ha along with fenpropathrin, hexythiazox and propargite @ 100, 25 and 570 g a.i./ha, respectively. The results revealed that at 21 days after spraying (DAS), the chemical treatments, etoxazole 10% SC (w/w) @ 40 and 55 g a.i./ha and hexythiazox 5.45 EC emerged significantly the best with a record of 0.91-1.14 mites/ 4cm2 leaf area and registering 78.03-82.47% reduction over untreated control (5.19 mites/4cm2 leaf area). Other chemical treatments did not offer satisfactory control of the mites at 21 DAS. Significantly highest marketable fruit yield was recorded in the higher doses of etoxazole 10% SC (w/w) treatments, i.e. @ 40 and 55 g a.i./ha (21.01-21.17 tonnes/ha) with 24.84-25.79 per cent increase in fruit yield over untreated control (16.83 tonnes/ha) closely followed by hexythiazox (20.92 tonnes/ha).
Morphology and food plants of subgenus Bombus sensu stricto (Hymenoptera: Apidae: Apinae) from Indian Himalaya
Authors: RAINA RIFAT H , SAINI MALKIAT S , Khan Z H
Published: August 2023

Subgenus Bombus sensu stricto is represented by two species, viz. Bombus tunicatus Smith and B. lucorum L from the Oriental region including Indian Himalayan belt. Morphology of 8 variants, synonymy and illustrations of this subgenus from Indian Himalayan belt is given. Besides this, new plants visited by them are also enumerated. Samples collected from Kashmir Himalayas showed great variation in the colour pattern of both species were noted. The worker size of B. tunicatus is variable with one having a size of a peanut and others having much larger size. B. tunicatus queens show different shades of white and brown colour on pronotum; white, brown and black on metanotum; abdominal tergum 1and 2 white and black. The colour pattern is very similar to B. simillimus with difference in having a black band between the bases of wings on the thorax. Females (queens) of B. lucorum show different shades of pale brown and yellow on pronotum and abdominal tergum 2; abdominal tergum 1 is pale brown, black and yellow; abdominal tergum 5 is white and yellow.
Correlation and path coefficient analysis in okra (Abelmoschus esculentus)
Authors: SINGH B , GOSWAMI AAKANSHA
Published: August 2023

The present study was carried out on twenty genotypes of okra [Abelmoschus esculentus (L.) Moench] with view to find out the correlation and path co efficient values among the seed yield components. Fruit yield/plant had significant positive association with number of fruits/plant and number of first fruiting node, whereas it exhibited significant negative association with days to flowering. Fruit yield/plant high positive direct effect on seed yield/plant indicating direct selection based on these characters would improve seed yield/plant.
Detection of durable resistant sources for sugarcane aphids, Melanaphis sacchari and their mechanisms of resistance in post rainy sorghum
Authors: BHAGWAT V R , PRASAD G SHYAM , PRABHAKAR PRABHAKAR , PAWAR D B , BIRADAR A P , BABU K SRINIVASA , KALAISEKAR A , SUBBARAYUDU B , PATIL J V
Published: August 2023

A set of 24 entries comprising B and R lines were evaluated under All India Coordinated Sorghum Improvement Project (AICSIP) at three hot spot locations, viz. Bijapur, Rahuri and Solapur during three consecutive post-rainy seasons 2008-2010 to identify durable and improved resistant sources for sugarcane aphid, M. sacchari under field conditions. Three lines (SLB 80, ICSV 93046 and SLR 31) were moderately resistant as determined by visual damage ratings and aphid population at physiological maturity. The mean aphid population was recorded as 46.9, 50.7, 51.4 aphids on SLB 80, ICSV 93046 and SLR 31 respectively, compared with 35.2 aphids/ cm2 of leaf area on TAM 428, a widely used source of resistance for M. sacchari under natural conditions. All three lines exhibited antibiosis, with an average progeny of 33.7, 39.3, 41.4 nymphs per adult on SLB 80, ICSV 93046 and SLR 31, respectively, compared to 24.4 nymphs/adult on TAM 428. Principal component analysis suggested that the genotypes with aphid resistance are quite diverse and can be introgressed into adapted local varieties. The present investigation reveals that aphid population/cm2, aphid damage rating, chlorophyll content and grain yield (g)/ plant appears to be the most reliable parameters for characterization of susceptibility or resistance to M. sacchari. The entries, SLB 80, SLR 31 and TAM 428 are resistant to aphid and could be utilized in Rabi breeding program as aphid resistant sources.
Bacillus megaterium strain NBAII 63: A potential biocontrol agent for the management of bacterial wilt of tomato caused by Ralstonia solanacearum
Authors: SIVAKUMAR G , RANGESHWARAN R , SRIRAM S , RAVEENDRAN P
Published: August 2023

Among 100 isolates of Bacillus spp. screened under in vitro condition, ten of them were found inhibitory against Ralstonia solanacearum which causes bacterial wilt of tomato. Bacillus isolate NBAII-63 was selected as promising one based on in vitro and in vivo screening. The promising Bacillus isolate NBAII 63 was identified as Bacillus megaterium by 16S rDNA analysis. The bio-efficacy of talc formulation of B. megaterium strain NBAII-63 was evaluated under green house and field for plant growth promotion and suppression of bacterial wilt in tomato. A combined application of seed treatment, soil application, seedling root dip and foliar spray was found effective for the management of bacterial wilt of tomato. Combined application resulted in reduction of wilt incidence to 59.9% and 56.0% under green house and field conditions respectively. Streptomycin sulphate application recorded 75.0% reduction in wilt under green house and 69.0% under field conditions. Significant increase in growth parameters, viz. root length (26.2 cm) and shoot length (74.1 cm) of tomato plants were recorded under field condition due to application B. megaterium as compared to control where it was 13.0 cm and 33.2 cm respectively. The per cent increase in root and shoot length of tomato plants due to application of B. megaterium over control was 50.3 and 55.2 respectively. Highest rhizosphere population B.megaterium of 71.2×106 cfu/g was recorded in field condition at 40 days after transplanting when the antagonist was applied as a combination of seed treatment, seedling root dip, soil application and foliar spray. Application of B. megaterium strain NBAII-63 in a combination approach such as seed treatment, seedling root dip, soil application and foliar spray significantly reduced the wilt incidence of tomato. This organism shows potential for use as a promising biological control agent in tomato.
Exploiting genetic diversity of walnut (Juglans regia) from Jammu region of India for export related traits
Authors: SHARMA R M , KOUR K , SINGH B , KOTWAL N , RANA J C , SHARMA N , BANDRAL J D , JAMWAL M
Published: August 2023

The present field work was done to study the existing genetic diversity and its exploitation through identifying elite walnut (Juglans regia L.) mother trees from the large number of naturally growing seedling trees in erstwhile Doda district of Jammu region of Jammu & Kashmir state. The field work was done from 2006 to 2012. A total of 63 walnut trees were marked as elite, out of 790 trees visited at 18 locations situated at 1500m-1750m above mean sea level. Out of total collections, 49.20% samples have attractive colour influencing the consumer acceptability. Five collections (BS1207, BT1807, MR0309, MR0509 and GL0109) had kernel recovery of >50%. Wide range of variability was recorded for various nut characters being highest in kernel recovery (18.54-61.40%) with highest coefficient of variation. Nut weight was positively correlated with nut size. The total variance in first principal component was due to nut size and weight while, in second component, it was contributed by kernel recovery. Further, analysis based on export quality traits (prescribed by J&K walnut grower association) lead to the identification of 8 most promising walnut clones, viz. BS1207, PK2707, MR0309, MR0509, MR0809, GL0109, PR0309 and NZ0112. Of these, GL0109 proved best in respect of export related traits and can be developed as a good table cultivar.
Effect of deficit irrigation on growth and yield of drip irrigated cabbage
Authors: RAJURKAR G B , PATEL NEELAM , RAJPUT T B S , VARGHESE CINI
Published: August 2023

A field experiment was conducted on cabbage crop (var. Indo-American Hybrid Ramakrishna) during the winter season of 2010-11 in loamy soil of Water Technology Centre, Indian Agricultural Research Institute, New Delhi. The objective of the study was to evaluate the effect of three levels of irrigation, i.e. 60, 80 and 100% of crop evapotranspiration (ETc) and two types of drip irrigation systems, viz. pressure compensating (PC) and non-pressure compensating (NPC) drippers on the cabbage growth and yield. Rated discharge of PC and NPC drippers were 1.0 and 2.1 litres per hour (lph). Cabbage crop was sown in November 2013 at the spacing of 30cm (plant to plant) and 60cm (row to row). Leaf Area Index (LAI) was recorded at initial, developmental, mid-season and maturity stages while the root volume was determined at the maturity stage of crop growth. Under PC system, the LAI values of 0.59, 0.90 and 2.07 were recorded at initial, developmental and middle stage of crop, respectively. During maturity stage, NPC dripper showed higher LAI (2.61) as compared to PC drippers (2.57). Increased wetting depth under NPC system resulted in higher root depth (70 cm) and higher root volume. The maximum and minimum yields obtained in PC drippers were 91.2 and 83.33 t/ha, whereas in the plot having NPC drippers, maximum and minimum yieldsobtained were 61.48 and 53.70 t/ha, respectively. Yield obtained under 80 and 100 % ETc was not significantly different, however full application of water (100%) resulted in better yield. Thus, Pressure compensating drippers with discharge matching to crop water needs (1.0 lph) and irrigation at 80 % ETc is recommended as optimum practice for cabbage cultivation in loamy soils of northern India.
Genetic analysis for quantitative traits in Indian bean (Lablab purpureus)
Authors: SINGH PRAMOD KUMAR , RAI N , LAL HIRA , SINGH D V , RAI K K
Published: August 2023

Genetic study conducted for yield and its traits in Indian bean [Lablab purpureus (L.) Sweet] revealed that heterosis over better parents was found to the extent of 130.78 and 142.27% for green pod yield/plant, 77.22 and 150.52% for number of pods/plant, 16.41 and 37.16% for pod length, 29.70 and 43.41% for pod width, 16.67 and 25.00% for number of seeds/pod, 54.08 and 57.14% for 100-seed weight, 1.46 and 24.56% for seed length, 6.61 and 26.27 % for seed width, 31.40 and 41.10 % for seed thickness, –31.27 and –17.08% for days to first flowering, –30.39 and –14.47% for days to first picking and 5.37 and 10.83 % for fruit set per cluster. The parents KDB 415, VRSEM 923, VRSEM 8 and VRSEM 11 were observed to be good combiners for most of yield contributing characters whereas, the crosses VRSEM 186 × VRSEM 860, VRSEM 11 × VRSEM 894, VRSEM 11 × VRSEM 860, HADB 4 × VRSEM 887 and VRSEM 8 × VRSEM 860 were observed to be most promising combinations for earliness and yield may be advanced for further generation. Most of the yields contributing characters were governed by nonadditive gene action indicating good scope of heterosis breeding in Indian bean for mobilization of yield barrier.
Effect of mechanical seed scarification on germination and seedling growth of inter specific hybrids of oil palm (Elaeis oleifera)
Authors: MURUGESAN P , RAVICHANDRAN G , SHAREEF M
Published: August 2023

The mechanical scarification techniques were tried to break the seed dormancy of wild oil palm (Elaeis oleifera HBK) with an objective to get speedy, uniform germination and seedlings to facilitate precise evaluation of progenies of inter specific hybrids. The experiment was conducted using hybridized and freshly processed Elaeis oleifera seeds from Palm No. 6 planted during 1994. A total of six mechanical scarification techniques along with dry heat treatment were adopted to achieve the objective. The results revealed that chipping endocarp (removing round piece of endocarp containing germ pore) of the nut and de-operculum (removing plate like structure present in the seed coat above the embryo in the kernel) resulted in maximum germination with uniform seedlings production. Endocarp chipping combined with de-operculum resulted in maximum germination with 50% and took 3, 5 and 7 days to initiate germination, 50% germination and final germination (50%), respectively. Dry heated seeds took 15 days time to attain maximum germination (40%) after pre heating duration of 60 days in the heating room. One set of seeds which received hammer crack in nut germpore region remained dormant even after six weeks due to ineffective scarification. Hence, nut chipping and de-operculum technique is recommended to alleviate the dormancy and the successful treatment could be adopted for production of quality planting material in inter specific hybrid seeds.
Stakeholders' preferences for land assembly: Development with rural urban synergy
Authors: KALSI NAMRITA , KIRAN RAVI
Published: August 2023

Sensitized and consultative approach is critical to defuse agrarian crisis in India. Unified development strategy of urban-rural continuum can be a natural outcome to discover a collectively acceptable model to key stakeholder. In the postulated model, the precincts of land owner, agriculturist, developer, Government or buyer are seen to be melting away. “Framework for acceptable land assembly” is critical for development of city regions, which is undeniably an uphill task, worldwide today. Urbanization is an engine of growth for which Regional and Master Plan is an important tool for development. Yet land-owners resistance has power to stall even a well conceptualized, sustainable, practical, statutorily compliant, technically sound, and financially viable “Master Plan”. The consequence is that the landowner or agriculturist feels alienated in the development process resulting in agrarian crisis and possible rural-urban divergence. Exploring this trend further a questionnaire as primary research tool was administered to stakeholders- landowners, Developers or Government and End User from India, a third world country to identify preferential mode(s) of land assembly. The study tries to converge and extract the most appropriate method and infers that land assembly has got fused with development process. In the end the paper brings out innovative implementation model suitable to all stakeholders as a feasible way onward. The paper tries to highlight the research gap for establishing judicious allocation of land for rural-urban synergy and tries to find an answer whether going vertical for both is possible?
Seed viability and vigour in naturally aged seeds of coriander (Coriandrum sativum)
Authors: KUMAR VIPESH , VERMA SHER SINGH , VERMA URMIL , KUMAR AXAY
Published: August 2023

In the present investigation, three seed lots of eight varieties/genotypes, viz. DH 224, DH 226, DH 242, DH 259, DH 294, DH 296 (advance genotypes) and DH 228 (Hisar Bhoomit) and Hisar Anand (released varieties) of coriander were subjected to study the effect of natural ageing on different seed quality parameters. All the seed lots were analyzed for standard germination test (%), root length (cm), shoot length (cm), seedling dry weight (mg), seedling vigour index-I, seedling vigour index-II, accelerated ageing test (%), electrical conductivity (mS/cm/seed) of seed leachates, seed density (g/cc), dehydrogenase activity test (OD/g/mL), field emergence index and field establishment (%). Results revealed that all the varieties/genotypes showed the germination percentage above the Minimum Seed Certification Standards (60%) in Lot-A (½ year old seed) and Lot-B (1½ years old seed). Standard germination (%), seedling length (cm), seedling dry weight (mg), seedling vigour index-I &II, accelerated ageing test (%), dehydrogenase activity test (OD/g/mL), field emergence index and field establishment (%) decreased significantly and progressively as the ageing period increased. The electrical conductivity was negatively and significantly correlated with all seed viability and vigour parameters. Results also revealed that viability and vigour of seeds declined with faster rate in Lot-C (2½ years old seed). Among all the varieties/genotypes, genotypes DH 224 and DH 228 were found most promising for various parameters of viability and vigour.
Screening of moth bean (Vigna aconitifolia) core collection against yellow mosaic virus
Authors: MEGHWAL R R , JOSHI UMA , KUMAR SUSHIL , SHARMA R
Published: August 2023

A core collection of moth bean [Vigna aconitifolia (Jacq) Marechal] germplasm, consisting of 204 lines identified in NAIP project was evaluated for mung bean yellow mosaic virus (MYMV) resistance; most of the lines were totally destroyed by yellow mosaic virus. Out of 204 accessions, 13 exhibited resistance/tolerance to disease in terms of intensity or level of symptoms appearing on individual plants. The susceptible lines could not bear flowers while resistant plants produced reasonable yield. The response of germplasm to MYMV exposed a distinct variation to the disease reaction. No genetic association between qualitative traits (seed color, leaf shape and plant type) and resistance/susceptibility to MYMV was observed in the present study. However, seed yield was significantly reduced with increased disease intensity.
Efficacy of newer insecticide formulation against white grub, Holotrichia consanguinea in groundnut (Arachis hypogaea)
Authors: BAJYA D R , BAHETI H S , RAZA S K
Published: August 2023

A field experiment was conducted during kharif 2011 and 2012 at research farm of Institute of Pesticide Formulation Technology, Gurgaon (Haryana) to evaluate the bioefficacy of new insecticide imidacloprid (0.3 G) @ four differential doses, viz 10, 15, 20 and 40 kg/ha along with standard check, phorate (10G) @ 25 kg/ha and imidacloprid (200SL) @ 500 ml/ha against Holotrichia consanguinea Blanch in groundnut crop. All doses of insecticides were used as soil application in groundnut (Arachis hypogaea L.). Imidacloprid (0.3 G) @ 15, 20 and 40 kg/ha recorded a significant reduction in percent plant mortality compare to standard checks (phorate (10G) @ 25 kg/ha and imidacloprid (200SL) @ 500 ml/ha) and untreated check during both cropping seasons. The lowest (8.23 and 10.27) percent plant mortality was recorded in imidacloprid (0.3G) @ 40 kg/ha during both the cropping seasons. It was however, at par with its lower doses @ 15 and 20 kg/ha. Imidacloprid (0.3 G) @ 10 kg/ha recorded the percent plant mortality up to 17.97 and 15.73 during 2011 and 2012, respectively. A significantly higher yield was recorded under all the treatments doses over untreated check during both the years. Among the treatments a highest yield (1 810 and 1 830 kg/ha) of dry pod was recorded in imidacloprid (0.3G) @ 40 kg/ha during both the cropping seasons. It was however at par with its lower doses, i.e. imidacloprid 0.3G @ 15 and 20 kg/ha. Imidacloprid (0.3G) @ 20 kg/ha exhibited maximum net return of Rupees 64 078 ha. Hence, imidacloprid 0.3 G at 20 kg/ha may be recommended for the management of H. consanguinea on groundnut cultivated in sandy loam soil of Haryana.
Quantifying the effect of COVID-19 pandemic lockdown among the summer crop growers of Uttar Pradesh
Authors: DUBEY S K , SINGH ATAR , SINGH A K , SAH UMA , PANDEY SADHNA , SINGH RAGHWENDRA , SINGH RAJEEV KUMAR , PANDEY AMAN KUMAR
Published: August 2023

Telephonic survey was done with randomly sampled 570 farmers spread across 57 districts representing eastern (16 districts), western (17 districts), central (16 districts) and Bundelkhand (7 districts) zones of Uttar Pradesh during the period of 20 April–25 June, 2020 to ascertain the effect of COVID-19 lockdown on the investment and profitability of the summer crops grown by them. Farmers’ responses were compared with their observations on the same variable during the same period of previous year, i.e. 2019. Suitable descriptive and inferential statistical treatments were given to collected data. Results established that there was maximum increase in all cost components for summer maize (8.74–16.21%) followed by okra (7.40–16.24%) and bottle gourd (7–16%). Summer greengram also had similar trends of cost increase (8–17%). Summer groundnut (3.55–5.54%) witnessed a relatively lesser increase for all costsexcept the plant protection cost (20.19%). Thus, compared to last year (2019), the cost components significantly increased for all the cultivated crops in summer. However, the government facilitation coupled with favourable climatic conditions helped the summer crop growers to harvest better yield advantage (4–10%) and accordingly the enhanced market price (5.02–8.52% more) increased profitability index (1.02–14.44%). The parameters like per unit production and plant protection cost emerged as the most prominent determinants of the net return of most of the summer crops during COVID-19 lockdown.
Biophysical and biochemical changes in tomato (Solanum lycopersicum) genotypes at different fruit developmental stages under protected cultivation
Authors: KUMAR SONA , KRISHNAN P , SINGH P K , VASHISTH ANANTA , KUNDU MONIKA
Published: August 2023

An experiment was conducted during 2020–21 and 2021–22 to evaluate the biophysical and biochemical characteristics of tomato [Solanum lycopersicum (L.)] genotypes (Pusa Rohini, Pusa Cherry-1, S-22, PKM-1 and Pusa Protected-1) grown at Centre for Protected Cultivation Technology (CPCT), ICAR-Indian Agricultural Research Institute, New Delhi. Tomato fruits were harvested at 14 different fruit developmental stages (DS01-DS14) starting from 4 days after post anthesis to the final red riped stage. Fruit size (length and width), biomass, firmness, total soluble solids (TSS), titratable acids (T.A), β-carotene, ascorbic acid and lycopene content were analysed for all the developmental stages. The highest value of fruit length, breadth, biomass, TSS, β-carotene and lycopene content was observed at full ripe tomatoes and the lowest in the early immature green stage. However, parameters like fruit firmness,T.A and ascorbic acid content were higher in early immature to mature green stage and decreased once the fruit entered the ripening stage. Thus, irrespective of the genotypes considered in this study, all the above parameters except fruit firmness, ascorbic acid and T.A were found to increase gradually with the advancement of ripening process. This clearly showed a significant relationship between the biochemical and biophysical parameters of the tomatoes with their fruit developmental stages, hence could be used as an indicator to characterize the fruit developmental stages.
Common Mistakes in Execution of Plane Load Test
Authors: Gunawan Anthony
Published: August 2023

Shallow foundation is the preferred foundation whenever possible, as it is economically more feasible compared to deep foundation. The design method for shallow foundation has long been established by Terzaghi. The Terzaghi’s bearing capacity equation requires soil strength parameters for its calculation. To obtain accurate results, undisturbed sample for laboratory testing is necessary. However, depending on the accuracy of soil sampling and laboratory testing, the results can have large inaccuracy. The in-situ determination of shallow foundation can be carried out by plate loading test. It is a well-established test which was standardized by British Standards in 1990 and American Society for Testing and Materials in 1994. The testing method is simple, and the standards provide flexibility in the execution of the test. Unfortunately, this flexibility can cause mistakes in the execution of the test, as practitioners can be selective in choosing the test procedure to minimize the test duration and/or cost. These mistakes can cause the plate load test results to be unusable or lead to erroneous results. This paper aims to address common mistakes in execution of plate load test.
Las TIC en el aula de instituciones educativas del Departamento de Itapúa: su implementación y propuesta de mejora
Authors: Palacios Zuiderwyk Rocío María Celeste , Raychakowski Sowa Elsa Cristina , Aranda Ariyu Walter Antonio
Published: August 2023

Este proyecto, autofinanciado por la Universidad Autónoma de Encarnación en Paraguay, tuvo como objetivo principal investigar y analizar la implementación de las Tecnologías de la Información y Comunicación (TIC) en el entorno educativo de instituciones escolares. Además, buscó fomentar la transformación educativa a través de la incorporación de prácticas innovadoras que incluyeran de manera efectiva y oportuna las TIC en las aulas. Para llevar a cabo este estudio, se adoptó un enfoque metodológico mixto, combinando un diseño de corte transversal no probabilístico intencional por conveniencia con una metodología no experimental transeccional. La investigación se apoyó en tres instrumentos de recolección de datos: una encuesta aplicada a docentes, una guía de observación implementada por practicantes (ambos instrumentos con el mismo indicador) y un cuestionario de satisfacción que evaluó la extensión del proyecto. Los hallazgos obtenidos revelaron que la mayoría de los docentes se encuentran en la fase inicial, denominada "Acceso a la integración de las TIC en el proceso educativo", lo que indica que todavía están en el proceso de adaptación y exploración de estas tecnologías en su labor pedagógica. Al comparar los resultados de la encuesta y la observación, se identificaron similitudes y discrepancias, lo que resalta la importancia de considerar múltiples enfoques para obtener una comprensión más completa de la situación. Un logro significativo del proyecto fue la implementación exitosa de las TIC en las prácticas profesionales de los docentes a través de una formación específica. El curso ofrecido a los docentes de diversas instituciones educativas en el departamento evidenció la necesidad imperante de capacitación en TIC, especialmente en el uso de herramientas específicas y la integración oportuna de estas tecnologías en el proceso educativo.
Evaluación del impacto de la enseñanza virtual en la formación de profesionales en Ciencias Contables: Un enfoque hacia la innovación educativa
Authors: Alegre Brítez Miguel Angel
Published: August 2023

El aprendizaje en línea ofrece beneficios sustanciales, como la flexibilidad y el desarrollo de habilidades de comunicación. Sin embargo, existen preocupaciones sobre la calidad del contenido y el fraude académico. Es esencial garantizar la rigurosidad y equivalencia en la educación en línea. Además, se deben implementar estrategias y herramientas para prevenir y detectar el plagio. El objetivo general de la investigación fue Evaluar el impacto de la enseñanza virtual en la formación de profesionales en ciencias contables. La metodología consistió en un enfoque cualitativo y técnica de recolección de datos el análisis documental y análisis de contenido con el uso de categorías y subcategorías de resultados, que fueron presentados en tablas con sus descripciones y discusiones. Como resultados principales se tienen que las habilidades blandas y duras son fundamentales en la educación en línea, por lo que se deben incorporar actividades y herramientas que promuevan su desarrollo. Como conclusiones generales se tienen que, en la enseñanza de las ciencias contables en línea, las presentaciones de PowerPoint, cuadernos de trabajo interactivos y los Sistemas de Gestión del Aprendizaje son herramientas útiles. Se recomienda promover la integridad académica y asegurar la equivalencia en la calidad de los cursos en línea. Como futuras líneas de investigación, se sugiere realizar estudios comparativos, explorar nuevas formas de prevenir el fraude académico y utilizar tecnologías emergentes en la enseñanza en línea de las ciencias contables.
A Survey of Cation Exchange Capacity of Soil Subjected To Arable Crop Production in Abraka,Nigeria
Authors: Oghenero Mogborukor Joseph
Published: August 2023

The study was design to examine the cation exchange capacity and pH of soil subjected to arable crop production in Abraka with a view to ascertain the environmental requirements of maize and cassava. The study was conducted in seven plots measuring 10m by 15m in the two ecosystems. It involved the experimental approach to examine soil properties of arable and forest sites to determine the farm areas that support maize and cassava production in the soils. The samples were collected at (0-10cm) surface and (10-20cm) sub surface. The soil data were analyzed for both exchangeable cation and soil pHin the laboratory. The results of statistical analyses show that, soil properties were at variance in the two ecosystem .Although, the arable landscape supported the production of maize and cassava in this region, the mean yields in the mature forest ecosystem are higher. This is obviously due to the higher nutrient content resulting from the support by organic matter composition in the mature forest which is supported by higher letter fall. The comparison of the soils was also determined using the student’s t-test at 0.5 level of significance. Finally, the researcher advances some recommendations towards improving the soil plant growth
Pastoralists’ Choice of Response Strategies to Climate Change and Variability in Semi-arid areas of Narok, Kenya
Authors: Kinuthia Kelvin John , Nakhone Lenah , Inoti Shadrack Kinyua
Published: August 2023

Crop farming and pastoralism are the main economic activities in the semi-arid lands of Narok County, Kenya. Like many semi-arid areas in the country, the region has been experiencing climate change and variability. This has caused the farmers and pastoralists to adopt various response strategies to the changing climate. This study aimed to document the strategies that the pastoralists had adopted for livestock production and the factors that influenced their decision. The study was conducted in all the four wards of Narok East in 2016. A cross-sectional survey research design was used, whereby 223 household heads were interviewed using a semi- structured questionnaire. Descriptive statistics were used to assess pastoralists’ response strategies, while a multivariate probit model in conjunction with Principal Component Analysis was used to determine the factors that influence their choice of the response strategies. Results showed that herd reduction, transhumance, new breeds of livestock and fencing were the most widely adopted strategies. Results of the multivariate probit analysis showed that gender, level of education and age of the household head, total household size, receiving weather information and land tenure system were all significant factors in influencing a farmer’s choice of response strategy. This study therefore recommends that farmers be empowered to access improved livestock breeds, education on climate change aspects and information on accurate and timely weather forecasts be availed to farmers.
Development and Evaluation of Instructional Video for Teaching Technical Drawing in Nigerian Universities.
Authors: Silas Edidiong Isonguyo , Ini Asuquo Utuk , George Williams Kennedy
Published: August 2023

This study developed and evaluated instructional video for teaching Technical Drawing to Technical education students in Nigerian Universities and also tried out to know if this teaching strategy affects students’ performance. Four research questions and one hypothesis were used for the study. The study adopted Research and Development (R&D) design for production of the video and One-group Pretest-Posttest Design to test the students’ performance. The population of this study comprised of 154 final year students and 58 lecturers in Technical Education Department from five public Universities in South-South geopolitical zone in Nigeria from which 100 students and 10 Technical Drawing lecturers were selected for the study through purposive sampling technique. To collect data for the study, the researchers developed instructional video and was faced and content validated by five experts using 40-item structured questionnaire. The student's performance was measured through 20-item pretest and posttest multiple-choice type of test. Cronbach alpha statistics was used to determine the reliability coefficient of the instrument which gave a value of .86. A five-point rating scale was provided for the respondents to make their responses on the research questions. The research questions were analyzed using Mean and standard deviation while t-test was used to test the hypothesis at .05 level of significance. The findings of the study revealed that the contents, specific objectives, instructional methods, materials, learners’ task and evaluation techniques of the developed instructional video are appropriate for teaching Technical Drawing to Technical education students in Nigerian universities. The study further revealed a significance difference between the students taught with the video and students taught without the video. Therefore, the null hypothesis was rejected. The researchers recommend among others that the video can be a supplementary material fo