bluuebunny/crossref_metadata_2025 huggingface dataset:
Composition of plant growth promoting rhizobacteria in forest and systematic plantations of tasar silkworm food plants and their relationship with soil and leaf nutrients
Authors:   Central Sericultural Research and Training Institute, Mysuru-570 008, India, Manjappa MR. , Pandiaraj T. ,   College of Agriculture, Acharya Narendra Deva University of Agriculture Science and Technology, Ayodhya-224 229, India, Ekka R.S. ,   Central Tasar Research and Training Institute, Ranchi-835 303, India, Prabhu I.G. ,   Central Tasar Research and Training Institute, Ranchi-835 303, India, Baig M.M. ,   Central Tasar Research and Training Institute, Ranchi-835 303, India, Sahay A. ,   Central Tasar Research and Training Institute, Ranchi-835 303, India, Sathyanarayana K. ,   Central Tasar Research and Training Institute, Ranchi-835 303, India
Published: June 2023

Aim: To investigate the status of bacterial load and number of isolates of plant growth promoting rhizobacteria in forest and systematic plantation of Terminalia tomentosa and T. arjuna, and their relationship with soil and leaf nutrient levels. Methodology: Soil samples were collected from the rhizosphere of food plants in four tasar silkworm rearing regions of India. Bacterial load of total bacteria, Nitrogen fixing bacteria (NFB), Phosphate Solubilizing Bacteria (PSB) and bacteria grown on King's B media (KBB) was enumerated on specific media by employing serial dilution technique. Based on the colony morphology and cell type, distinct colonies on specific media were counted as isolate. Nutrient levels in soil and leaf samples collected from different plantations were analyzed. Multivariate correlation analysis was performed between PGPR microbial load and isolates with soil physio-chemical parameters and leaf nutrients. Results: The rhizosphere of forest plants possessed the highest total bacterial load, the systematic plantation possessed the highest NFB load, whereas PSB and KBB load was equal in both the plantations. Forest plantations of Keonjhar and Sundergarh regions had the highest number of NFB isolates per rhizosphere soil sample and systematic plantations possessed the highest number of KBB (Keonjhar and Sundergarh regions) and PSB isolates (West Singhbhum region). Positive correlation was observed between PSB load and the number of isolates with soil organic carbon, KBB load with soil electrical conductivity and available potassium, PSB load and KBB isolates with soil available sulphur. NFB and KBB load and their isolates showed positive correlation with leaf N and K content. Interpretation: Results suggest the possibility of improving leaf nutrient quality of tasar silkworm food plants by enriching PGPR microbial load through biofertilizer application. Key words: Rhizobacteria composition, Soil nutrients, Silkworm, Terminalia tomentosa, Terminalia arjuna
Temporal variability in foliar protein content and trypsin inhibitory levels in two host trees of tropical Tasar silkworm Antheraea mylitta, Drury
Authors:   Department of Botany, Plant-Biotic Interactions Group, University of Delhi, New Delhi- 110 007, India, Bhardwaj P. , Choudhary V.K. ,   Centre for Environmental Management of Degraded Ecosystems, University of Delhi, New Delhi-110 007, India, Alam M.S. ,   Tasar Development Foundation, New Delhi-110 049, India, Acharyya S. ,   Professional Assistance for Development Action (PRADAN), Noida-201 301, India, Mazumdar-Leighton S. ,   Department of Botany, Plant-Biotic Interactions Group, University of Delhi, New Delhi- 110 007, India, Babu C.R. ,   Centre for Environmental Management of Degraded Ecosystems, University of Delhi, New Delhi-110 007, India
Published: June 2023

Aim: Variation in total soluble proteins and protease inhibitor levels were investigated to determine nutritional and plant defense status in different leaf types of Terminalia arjuna (Roxb.) Wight and Arn., and Schleichera oleosa (Lou.) Oken, two host tree species of the economically important, non-mulberry Tasar silkworm, A. mylitta. Methodology: Quantitative spectrophotometric assays based on diagnostic amidolytic substrates were conducted to assess serine protease inhibitor activities in young, semi-mature and mature leaf types. A microplate quantification assay for total protein estimations was used with leaf types sampled over a year. Efficacy of total trypsin inhibitor and chymotrypsin inhibitor activities detected in T. arjuna (a primary host plant) was further evaluated on gut extracts of fourth instar A. mylitta and Pieris brassicae L. (a Pierid pest of crucifers) to assess the physiological adaptation of larvae to dietary antifeedants. Molecular provenances with rbcL genes were obtained that are available as NCBI accessions #MN460810 for T. arjuna and #MT010554 for S. oleosa. Results: Intra-specific variations were evident in leaf phenology of two tree species. Generally, young leaf type of both tree species had high levels of total protein and trypsin inhibitory activities, while mature leaf type of T. arjuna had low total protein content and trypsin inhibitor levels. Mature leaf type of S. oleosa had low trypsin inhibitor levels during the months of July and August. Midgut proteases of A. mylitta and P. brassicae were significantly more susceptible (p≤0.05) to both trypsin and chymotrypsin inhibitors detected in young and semi-mature leaf types of T. arjuna than the mature leaf type. Interpretation: In this study, differential inhibition of digestive proteases in A. mylitta and P. brassicae by protease inhibitors from different leaf types of T. arjuna, suggested adaptation to dietary antifeedants. Such reports on nutritional quality, foliar antifeedants, phenology and host plant utilization are relevant for strategies to domesticate the tropical Tasar silkworm, A. mylitta. Key words: Antheraea mylitta, Protease Inhibitors, Terminalia arjuna, Total protein, Tree phenology
Role of capacity building, extension and services in tasar sector
Authors:   Central Tasar Research and Training Institute, Ranchi–835 303, India, Mittal V. , Binkadakatti J. ,   Central Tasar Research and Training Institute, Ranchi–835 303, India, Sathyanarayana K. ,   Central Tasar Research and Training Institute, Ranchi–835 303, India
Published: June 2023

Aim: To train manpower for disseminating the technologies to the grassroots level stakeholders and facilitate to replicate the successful model of sericulture practice developed in tasar sector. Methodology: Central Tasar Research and Training Institute (CTRTI), Ranchi organizes different training programmes for the benefit of various stakeholders of the industry. These programmes are tailor-made to meet the specific needs of each sector and of immense help in updating the knowledge and skills of the extension personnel and sericulturists, through Field Day, Farmers Day, Technology Demonstration, Awareness Programme, Group Discussion and Farmers Meet / Krishi Mela, etc., which are the major platforms of ECPs providing technical support and transfer of technologies developed by CTRTI. Results: For the purpose, different training programmes were organized in last five years (2017-2022) from time to time by CTRTI and approximately 6753 persons were trained in different subsectors of sericulture through training programmes like: Structured Training Course (PGDS-Vanya Silk), Farmers Skill Training, Exposure visit for Technology Awareness, Technology Orientation Programme for the frontline officers / officials of DOS/NGO/ Lead farmers /student / project work on microbiology/biotechnology, etc., Seri Resource Centre (SRC),Competency Enhancement Training Programme (CETP), Training under Post Cocoon Sector, Lab-to-land demonstration, Establishment of BIOTECH-KISAN Hub. Skilling the farmers involving KVKs for expansion of tasar through training of the KVK Scientists under ICAR & nurtured Community Resource Persons (CRPs) under aegis of Producer Institutions. Interpretation: With the new developments taking place in the field of sericulture, the training and development activity is considered as a necessity by all forward-looking organizations both national and international for updating the knowledge and skill, and hence training needs will continue to perpetuate at all levels of silk industry world wide. To achieve the potential productivity levels, strategies are suggested for a viable effective extension system in the country in general and orthwest region, in particular. Key words: Alternate extension organizations, Capacity building and training and silk production, Extension, Productivity potential, Tasar culture
Optimization of macronutrients application in Terminalia tomentosa (Asan) for sustainable tasar silk production
Authors:   Central Tasar Research and Training Institute, Ranchi-835 303, India, Singh J. , Pandiaraj T. ,   College of Agriculture (Acharya Narendra Deva University Of Agriculture And Technology), Azamgarh-276 001, India, Das S. ,   Central Tasar Research and Training Institute, Ranchi-835 303, India, Sathyanarayana K. ,   Central Tasar Research and Training Institute, Ranchi-835 303, India, Giri S. ,   Regional Sericultural Research Station, Dumka-814 110, India, Kar P.K. ,   Regional Sericultural Research Station, Baripada-757 001, India, Patnaik M. ,   Regional Sericultural Research Station, Baripada-757 001, India, Patnaik B. ,   Regional Sericultural Research Station, Baripada-757 001, India
Published: June 2023

Aim: The aim of the present study was to optimise the nutrient requirements for Terminalia tomentosa (Asan) plant to increase the quality and quantity of leaves. Methodology: This study used the Mitscherlich-Bray equation to formulate NPK requirements for the Asan plant. Independent experimental setups of N (5 levels), P (5 levels), and K (5 levels) designed in RCBD with three replications were carried out concurrently. Calculations were made to determine the theoretical maximum yield, the NPK constants c and c1, the NPK fertiliser recommendations for the Asan plant at various soil fertility levels, and the ideal fertiliser rates. Results: Fertiliser recommendations were developed for a typical range of soil test values, but they still required additional field verification tests. The theoretical maximum yields determined by the Mitscherlich-Bray equation were 599.79g, 587.49 g, and 562.34 g per 50 leaves of the Asan plant for NPK, respectively. The study demonstrated that it is critical to consider the inherent soil fertility when developing fertiliser recommendations for Asan that will increase both leaf yield and overall productivity. It showed that soil K was less efficiently utilised by the Asan plant compared to the other soil nutrients. The c1/c ratio of the P experiment was lowest compared to the c1/c ratio values of N and K experiments, indicating that the Asan plant was more responsive to P fertilisation than other macronutrient fertilisation Interpretation: The fertiliser recommendation chart serves the farmers to manage the Asan plants and is more beneficial for harvesting quality cocoons without degrading the ecosystem. Key words: Asan, Baripada, Macronutrients, Odisha, Tasar silk
Molecular cloning and development of RAPD-SCAR markers for the selection of thermo-tolerant line of tropical tasar silkworm
Authors:   Central Tasar Research & Training Institute, Central Silk Board, Ranchi – 835 303, India, Prabhu I.G. , Manjappa Mr. ,   Central Sericultural Research & Training Institute, Central Silk Board, Mysore – 570 008, India, Baig M.M. ,   Central Tasar Research & Training Institute, Central Silk Board, Ranchi – 835 303, India, Kumar N. ,   Central Tasar Research & Training Institute, Central Silk Board, Ranchi – 835 303, India, Sinha A.K. ,   Ranchi University, Ranchi - 834 008, India, Kutala S. ,   Central Tasar Research & Training Institute, Central Silk Board, Ranchi – 835 303, India
Published: June 2023

Aim: To develop random ampliﬁed polymorphic DNA (RAPD) -sequence-characterized ampliﬁed region (SCAR) markers for selecting thermo-tolerant line of tropical tasar silkworm. Methodology: In the environmental chamber, Daba BV cocoons of A. mylitta were exposed to high temperature at 46°C/4 hr for 3 days. After the emergence, genomic DNA was extracted from thermo-tolerant moths and thermo-susceptible pupae. The genomic DNA was amplified using 30 RAPD random decamer primers. The improved RAPD fragments that can differentiate thermo-tolerant and susceptible line of A. mylitta were eluted, cloned in pJET1.2 vector and sequenced. SCAR markers were developed based on the sequence and validated in the subsequent generations. Results: Among 30 RAPD primers, OPK04, OPAJ15 and OPA17 generated polymorphic bands to differentiate thermo-tolerant and susceptible line of A. mylitta. These polymorphic bands were eluted, cloned and sequenced. Sequencing of three cloned fragments revealed that clone PB1 comprised of 1412 bp, clone PB2 comprised of 704 bp and clone PB3 comprised of 931 bp. Sequence specific stable multiplex SCAR markers TT-PB1, TT-PB2 and TT-PB3 were designed and synthesized. PCR amplification was performed using DNA templates of 10 thermo-tolerant and 10 thermo-susceptible samples. SCAR marker TT-PB1 was observed to be more specific to thermo-tolerant line of tropical tasar silkworm and validation with 25 samples each in next generation also supported the specificity of TT-PB1. Interpretation: Among three SCAR markers, TT-PB1 showed more specificity for selecting the thermo-tolerant line of A. mylitta. Therefore, the study provides an effective and precise PCR-based molecular marker system for selecting thermo-tolerant lines in tropical tasar silkworm to overcome seed crop loss due to high temperature stress in tasar rearing hotter zones. Key words: Antheraea mylitta, cloning, RAPD, SCAR m­­­arker, Thermo-tolerance
Auditoria tributaria y su incidencia en el control interno de las Pymes en Colombia
Authors: Rangel-Villamizar Yurley Tatiana
Published: June 2023

En este trabajo de investigación se centrará en Determinar la incidencia de la auditoria tributaria como herramienta de control interno en las Pymes en Colombia. La elaboración de esta investigación se basó en fuentes primarias y secundarias para la obtención de información descriptiva usando así mismo técnicas de búsqueda como los operadores boléanos AND, OR. Se espera que con la realización de este informe investigativo se conozca cuáles son los componentes del Programa de auditoria tributaria para las pymes partiendo que se debe considerar la planeación de una auditoria como herramienta clave para que se obtengan los resultados esperados y así poder rendir un informe a las personas interesadas en conocer la situación real de una empresa en materia tributaria en el caso que se quiera se desee solicitar una devolución de saldo a favor o tener su información conforme a la normatividad, la determinación de la ejecución de una buena auditoria tributaria como una herramienta para el control interno de las Pymes en Colombia es de suma importancia puesto que está diseñada para brindar confiabilidad y brindar claridad sobre las técnicas para implementar en una auditoria y así poder identificar aquellas prácticas que pueden ocasionar la elaboración y preparación  incorrecta de la información tributaria que termina con la procedencia de una sanción del ente fiscalizador. Por último, el análisis de los procedimientos de Auditoria tributaria interna de las pymes como herramienta preventiva, en donde se verifica la veracidad de la información a informa o previamente informada.
Historia, Avances e Importancia de la contabilidad a través del tiempo hasta la época moderna
Authors: Espinel-Castro Diana Paola
Published: June 2023

El presente estudio tiene como objetivo conocer la historia de la contabilidad y su avance a través de los años; para esta se realizó una investigación sobre los primeros autores que hablaron sobre esta y como ha sido el proceso de el cambio y los avances obtenidos, revelando que la contabilidad nace desde el principio de los tiempos donde tienen la necesidad de realizar actividades mercantiles o económicas, ya que estas son necesarias para la subsistencia de la humanidad; las personas necesitan obtener artículos o alimentos para vivir, desde la época antigua con el trueque donde se hacían cambios de víveres para cubrir estas necesidades; es allí como comienza poco a poco se van elaborando herramientas para que la manera de tenerlas a la mano sea más fácil y se tenga el control de estas; y así llegando a la actualidad, concluyendo que  toda la investigación que se realiza lleva la contabilidad a campos más avanzados logrando así que sea una ciencia y una profesión; a través de esta investigación lograremos experimentar todos los avances que ha tenido, sus primeros investigadores y lo amplia que es ahora la contabilidad.
Embodying Recognition: Dance Improvisation for Scientists
Authors: Susanne Martin
Published: June 2023

In this exposition (text, videos, photos) I discuss a series of participatory lecture performances as one major outcome of my artistic research on dance improvisation in and for science and technology oriented higher education. These lecture performances aim to give different stakeholders in the science field an initial insight into dance improvisation and to facilitate discussion of its potential for the scientific learning, teaching and research culture. From the perspective of a dance artist and artistic researcher, I trace the details of how and why I created events for scientists to encounter dance improvisation through shared exploration and shared reflection. Interlacing descriptive and reflective writing, I unfold the argument that by engaging in improvisation as an embodied recognition practice, reflective processes can be set into motion, which critically question habituated forms of bodily, social and epistemological exclusions within academia. In other words, by conceptualising dance improvisation as recognition practice, I hope to shed light on its critical potential which exceeds questions of spontaneity and creativity.
Wasteful Expenditures in the United States Healthcare System: Identifying Inefficiencies and Opportunities for Improvement
Authors: Naithani Rizul
Published: June 2023

Rationale: The United States has one of the highest healthcare
expenditures among developed nations despite performing poorly on health
metrics and access to care. Wasteful healthcare expenditures in the US
not only affect patients but also have broader implications for public
health. Aims and objectives: To identify major sources that
contribute to wasteful spending in the US healthcare system.
Method: A comprehensive literature search was conducted to
identify relevant studies on wasteful expenditures burdening the US
healthcare system. Search terms such as “wasteful expenditures,”
“healthcare costs,” and “inefficiencies in US healthcare” were used
in PubMed and Google Scholar databases. Full-text peer-reviewed
articles, reports, internet articles, and policy documents were included
in the study. Studies published in languages other than English were
excluded. No ethical approval was required for this review as the
analysis was conducted on previously published literature.
Results: Approximately a third of US healthcare spending is
considered wasteful. According to the Institute of Medicine, excess
costs have been associated with unnecessary services, inefficient
delivery of services, high service prices, excessive administrative
costs, low emphasis on prevention, and fraud. Other factors that were
identified to affect the healthcare experience for patients included
insurance payment denials, high out-of-pocket expenses, and
administrative complexities. Overcoming these aspects might result in
annual savings that can range up to $282 billion. Additionally, the US
has greater preventable and treatable mortality rates than other nations
due to increasing chronic diseases, emphasizing the need for greater
utility of preventive and primary care services. Despite the ACA’s
intention to include preventive services in health plans, obstacles
persist in their consistent integration across states.
Conclusion: In summary, improving access to care by increasing
affordability and prioritizing preventive care services can
substantially reduce unnecessary costs to the US healthcare system.
Detection of Low Dose CT Pulmonary Nodules Based on 3D CNN-CapsNet
Authors: song li , zhang ming , wu liang
Published: June 2023

To improve the detection rate of pulmonary nodules in early lung cancer
screening, a low-dose CT pulmonary nodule detection algorithm based on
3D CNN-CapsNet (3D convolution neural network and capsule network) was
presented. However, the convolution kernel size of the traditional CNN
is relatively simple at each layer, and it is difficult to obtain more
abundant features, which is not effective for medical images with a
hierarchical structure and does not fully consider the spatial
information of medical sequence data. CapsNet is a new network
architecture that can be used to classify, using a group of neurons as a
capsule to replace the traditional neural networks, it may be made to
the attribute information and spatial feature extraction. The network
structure we designed includes FCN and CapsNet. First, the convolution
kernels of different sizes are used to extract features at different
scales. Then enter the initial feature map to obtain the first part into
the designed CapsNet to get the final classification result. Through the
experimental verification of the ELCAP database, the nodule detection
rate is 95.19%, the sensitivity is 92.31%, the specificity is 98.08%
and the F1-score is 0.95 which are much better than other baseline
methods.
Characterization of Plant-Growth Promoting Archaea Associated with the Rhizosphere of Salsola stocksii and Atriplex a
Authors: mukhtar salma , Malik Kauser , Mehnaz Samina , Shah Hijab Zahra
Published: June 2023

Halophilic microorganisms play a crucial role in plant health and growth
in salinity affected lands. The objective of this study was to evaluate
the haloarchaeal diversity from the rhizosphere of halophytes and plant
growth promoting abilities of these strains. The whole genome sequences
of two haloarchaeal strains, Halorubrum lacusprofundi HL1RP11 and
Halobacterium noricense NRS2HaP9, were analyzed, and genes related to
plant growth promoting traits were identified. Phylogenetic analysis
showed that archaeal strains of Halococcus, Halorubrum, Halobacterium
and Natrinema were dominant in the rhizosphere of halophytes. More than
60% of the strains were positive for phosphate solubilization and IAA
production. About 50% of strains were positive for nitrogen fixation,
while 33% were siderophore producers. More than 40% of haloarchaeal
strains showed the heavy metal resistance for Nickel, Cadmium, Chromium
and Zinc at a concentration of 5 mM. Genes involved in plant growth
promotion were identified through annotation. Gene clusters related to
secondary metabolites including phenazine, siderophore production and
terpene were also identified in this study. Our results suggested that
these haloarchaeal strains can be used as an eco-friendly biofertilizer
to improve growth and productivity in hypersaline environment.
Research on soil enzymes and polysaccharides secreted by the roots of Salvia miltiorrhiza Bunge under abiotic stress
Authors: qin yong , Li Xiaoyu , Wu yanhong , han guiqi , wang hai , Yan Zhuyun Yan
Published: June 2023

Root exudates serve as crucial mediators for the information exchange
between plants and soil, which is an important evolutionary mechanism
for plants to adapt to environmental changes. In this study, 15
different abiotic stress models were established using various stress
factors, including drought (D), high temperature (T), nitrogen
deficiency (N), and phosphorus deficiency (P) and their combinations. We
investigated their effects on the seedling growth of Salvia miltiorrhiza
Bunge and the activities of
Inverse latitudinal diversity gradient pattern of the trogid beetles and the drivers
Authors: Li Lulu , Lu Yuanyuan , Zhou Xuan , Chen Xin , Bai Ming
Published: June 2023

The rare inverse latitudinal diversity gradient is almost neglected
compared with the dominant latitudinal diversity gradient, and the
underlying mechanism of this biodiversity pattern remains elusive,
especially for invertebrates. Necrophage trogid beetles are a
vertebrate-dependent family group that may potentially serve as an
environmental indicator, but comprehensive distributional knowledge is
lacking. Here, a geographical distribution dataset of 11321 coordinates
belonging to 284 species (over 80% of Trogidae) was compiled, and
pairwise dependencies of trogids and vertebrates were integrated. The
diversity patterns of Trogidae were revealed by calculating species
richness and performing endemicity analysis. To further illustrate the
underlying richness-variable relationships, the relative effects of
environmental factors on the richness of trogids were investigated by
random forest analysis. The hotspots of trogid species richness and
areas of endemism were both located in temperate zones, together
generating a rare inverse latitudinal diversity gradient in which
similar height bimodal peaks appeared in the mid-latitude temperate zone
(near 30°S and 40°N). Climatic conditions and food availability combined
to explain 21.94% of the variance in global trogid richness. This work
first reported the global diversity pattern of necrophagous beetles at
the specimen grade and supported the ‘resource-dependent hypothesis’.
And the case study in trogids provides valuable insights into inverse
latitudinal diversity gradient patterns. The loose linkage of trogids
and vertebrates is another interesting insight, with implications for
carefully using trogids as an indicator of vertebrate distribution.
Propiedades psicométricas del cuestionario de adicción a las redes sociales (ARS) a población universitaria
Authors: Suárez-Perdomo Arminda , Garcés-Delgado Yaritza , García-Álvarez Edgar , Ruiz-Alfonso Zuleica
Published: June 2023

Social network addiction in young people has been extensively studied and associated with multiple factors. Among the scales de­signed to measure this, the 24-item version of the Social Network Addiction Questionnaire (SNAQ) is one of the most widely used. This study analyses the psychometric properties of the Spanish version adapted to undergradu­ates. The content and construct validity of the scale was explored using the Rasch model and a confirmatory factor analysis. The data cate­gorisation structure, construct dimensionality, model fit, subject and item reliability, Wright Map structure, and differential item function­ing (DIF) were specifically analysed. 1,809 students from 24 Spanish universities partic­ipated. The results indicate that the SNAQ presents good reliability and dimensionality, and a good model fit; however, elements in need of improvement are appreciated mainly in the proposed Likert scale, in the develop­ment of new items that measure the extremes of addiction to social network sites and in the wording of one item. With respect to fac­tor analysis, three factors were obtained thatcoincide with the original construct. With the improvements that have been observed through validation, the questionnaire could confidently be used to measure the construct in the university population. The instrument fills an important gap in the identification of addictive behaviours in the use of social net­works, which could lead to a subsequent inter­vention involving undergraduates.
Approximate analytical solution to the Kudryashov-Sinelshchikov equation with he’s fractional derivative
Authors: Zhang Xiuquan
Published: June 2023

In this paper, the Adomian decomposition method was employed successfully to
solve the Kudryashov-Sinelshchikov equation involving He?s fractional
derivatives, and an approximate analytical solution was obtained.
Petrophysical Calculation Analysis and Determination of Cut-Off in Betung Field, Jambi-Sub-Basin, South-Sumatera-Basin
Authors: AI Irmaya
Published: June 2023

Petrophysical properties provide a comprehensive approach to reservoir characterization, in which reservoir quality is of paramount importance. The main controllers for reservoir quality are porosity, permeability and clay content. Petrophysical models are used by utilizing the correlation between tool response (logging) and rock and fluid properties. These petrophysical results will be cut-off to distinguish productive and unproductive parts of a reservoir. Petrophysical and cut-off calculations in the Betung Field are applied to determine the quality and productive zone of the Air Benakat Formation reservoir. The direction of field development (infill wells) is based on the quality of the reservoir and productive zone obtained based on the results of petrophysical and cut-off calculations. This research was conducted in Layer 5 (L-5) of the Betung Field using the main data, namely well logs (Gamma ray, density, neutron, resistivity). Well logs were processed to obtain petrophysical values using Interactive Petrophysic and Microsoft Excel software. Petrophysical results were then cut-off on clay content, porosity and water saturation, so that a productive zone was obtained from the Betung L-5 field. Petrophysical and cut-off results show L-5 is a Hydrocarbon prospect zone with an average petrophysic value for well 210 (Vclay: 32%, porosity: 25% and water saturation: 65%); well 220 (Vclay: 35%, porosity: 30% and water saturation: 38%); well 222 (Vclay: 8.2%, porosity: 31% and water saturation: 28%). The resulting cut-off values for well 210 (Vclay: 42.6%, porosity: 17% and water saturation: 98%); well 220 (Vclay: 26.6%, porosity: 22.4% and water saturation: 50.3%); well 222 (Vclay: 18%, porosity: 17% and water saturation: 70.4%).
A Bibliometric Analysis: Trend of Studies in Self-Regulated Learning Over The Past Three Decades
Authors: Sulistiawati Sulistiawati , Kusumah Yaya Sukjaya , Dahlan Jarnawi Afgani , Juandi Dadang , Vos Hans
Published: June 2023

Many studies measure self-regulated learning in some fields but still a few studies in the education field or related fields. This study aimed to analyze performance analysis and science mapping related to the research trend in self-regulated learning over the past three decades. Therefore, it was conducted using the bibliometric analysis method on 2106 documents related to self-regulated learning published in the period 1990-2022 from the Scopus database. Those documents are limited in the final stage, English, journal source type, and article document type. The chosen subject areas were art and humanities, psychology, and social sciences which have a relation with the education field. The data analysis process was assisted by Publish or Perish and VOSviewer software to examine the publication and citation-related metric, publication, and citation trend analysis, citation analysis, co-authorship analysis, and co-word analysis. The results of this study are the trend and development of research regarding self-regulated learning over the past three decades presented that: 1) the publication-and-related metric in this study showed that there were 2,106 papers related to self-regulated learning which distributed in range 1990-2022 that has 20,752 citations and the h-index value is lower than g-index value, 2) the publication-and-citation trend analysis showed relatively fluctuative in periods and constant in particular year, 3) the citation analysis showed that the most influential document is written by B. J. Zimmerman in 2008 that has been cited around 1664 times, 4) the author who has collaborated the most with other authors is Järvelä, S., 5) the United Stated is the most productive and influential country who make studies in self-regulated learning, 6) the most productive organization is University of Oulu, Finland and the the most influential organization is the Department of Educational Psychology, Graduate Center, City University of New York, and 7) the ‘self-regulated learning’ keyword has the most occurrence amount 1766 times. These findings provide an overview of the evolution of self-regulated learning research papers during the last three decades. This study examines a period of time that was longer than previous studies. As a consequence, its resulting contribution is also larger, providing an overview of the field's evolution over the last 30 years and providing other researchers with a comprehensive resource for performing self-regulated learning research.
Movable Page-Based Interactive Books on Numbers in Elementary Schools
Authors: Suganda M Vina Amilia , Laihat Laihat , Harini Bunda , Safitri Mazda Leva Okta , Melati Sendy Putri , Rahmadan Dhimas , Hayati Suci , Handrianto Ciptro
Published: June 2023

The development of a Movable Page-Based Interactive Book on Numbers in Elementary Schools aims to determine the feasibility and effectiveness of the product being developed. The use of teaching materials has an important role including the role for students, teachers in classical learning, groups and individuals. An interactive book based on Movable Pages is a teaching material that is systematically arranged to help students understand the concept of numbers in elementary schools. This study uses a development research approach by applying the ADDIE Model (Analyze, Design, Development, Implementation, Evaluation).  Research that has been carried out up to the Development stage. Based on the results of the research that the development of movable page-based interactive books on number material of n elementary schools was developed declared and valid by 4 (four) validators, with a percentage of 90.4% in the very valid cate-gory. In the implementation stage, namely the product trial stage, namely one-to-one and small group trials which were carried out in class V students at SD Negeri 11 Sungai Pinang as many as 21 students, the results of the student questionnaire recapitulation were 89.7% with the very good category. Thus, from the several stages that have been passed in this study, it was found that the Movable Page-Based Interactive Book on Numbers Material in Elementary Schools is valid and practical. This interactive book can help elementary school teachers so that students can easily understand number material in learning mathematics and fur-ther researchers can continue this research to determine the effectiveness of interactive book products and can develop interactive books for other materials in learning mathematics in elementary schools.
Developing Local Education Content Supplementary Textbook Innovation by Referencing to Women in Floating Market
Authors: Rajiani Ismi , Prayitno Harun Joko , Kot Sebastian , Ismail Norain , Iswarani Widya Prihesti
Published: June 2023

For local content is required in the Indonesian curriculum, the current study aims at determining local values derived from women struggling in floating markets of  South Kalimantan, Indonesia. Five distinctive values were revealed using direct observation and Delphi Techniques: a high tolerance for ambiguity, sustainable innovation, independence, high risk-taking propensity, and external locus of control. Since teachers consist-ently claim that materials centred on events on the island of Java (Java-based approach) dominate social studies instruction, the finding of this study  can be used  as  a model for developing supplementary materi-al based on the real example of locality uniqueness.
Monitoring Keanekaragaman dan Kemelimpahan Ular (Squamata: Serpentes) di Sungai Gadjah Wong, Daerah Istimewa Yogyakarta
Authors: Yudha Donan Satria , Eprilurahman Rury , Alfarizi Muhammad Khevin Fathah , Rahino Wintang Gagat Bangun , Dewi Nur Indah Candra , Andhika Rashif Naufal
Published: June 2023

Penelitian mengenai keanekaragaman dan kemelimpahan ular di Sungai Gadjah Wong telah dilaksanakan pada tahun 2014, tetapi setelah lima tahun berlalu terjadi perubahan kondisi sungai yang dimungkinkan berpengaruh terhadap keanekaragaman dan kemelimpahan ular. Oleh karena itu, penelitian ini bertujuan untuk mengetahui keanekaragaman dan kemelimpahan ular di Sungai Gadjah Wong pada tahun 2019, serta membandingkan dengan data penelitian tahun 2014. Pengambilan sampel pada penelitian ini menggunakan metode VES (Visual Encounter Survey), river bank cruising dan transek di sepanjang tepi sungai. Pengambilan sampel dilakukan di tiga bagian lokasi, yaitu bagian hulu, tengah, dan hilir, dengan setiap lokasi dibagi menjadi tiga titik sampling. Hasil yang diperoleh pada tahun 2019 ditemukan enam spesies ular yaitu Ahaetulla prasina, Ahaetulla sp., Xenocrhophis trianguligerus, Xenocrhophis melanzostus, Dendrelaphis pictus dari familia Colubridae, dan Homalopsis buccata dari familia Homalopsidae. Ahaetulla prasina merupakan spesies yang memiliki jumlah paling melimpah di Sungai Gadjah Wong tahun 2019. Keanekaragaman dan kemelimpahan ular pada bagian hulu dan hilir di Sungai Gadjah Wong tahun 2019 lebih rendah dari pada tahun 2014. Keanekaragaman dan kemelimpahan ular tahun 2019 pada bagian hilir memiliki nilai yang lebih tinggi hal ini disebabkan oleh penambangan pasir yang terdapat di bagian hilir pada tahun 2014 tidak ditemukan lagi di tahun 2019.
Potensi Bacillus spp. Sebagai Penghasil Biosurfaktan untuk Pengolahan Limbah Minyak Pelumas
Authors: Zia Khaleda Zia , Linda Tetty Marta
Published: June 2023

Biosurfaktan adalah makromolekul ekstraseluler yang dihasilkan oleh mikroorganisme yang memiliki sifat ramah lingkungan serta memiliki berbagai fungsi salah satunya untuk emulsifikasi limbah minyak. Penelitian ini bertujuan mengetahui potensi isolat Bacillus spp. dalam menghasilkan senyawa biosurfaktan untuk pengolahan limbah minyak pelumas. Metode yang digunakan adalah penetapan indeks emulsifikasi dan analisis aktivitas emulsifikasi (drop collapse test, oil spreading technique, uji tegangan muka) dari supernatan kultur Bacillus spp., serta karakterisasi biosurfaktan dengan Kromatografi Lapis Tipis (KLT). Supernatan dari ketiga isolat Bacillus spp. menunjukkan hasil positif dengan uji drop collapse test dan oil spreading technique dengan diameter zona bening tertinggi diperoleh dari Bacillus sp 48 sebesar 10,2 mm, serta nilai indeks emulsifikasi (E24) sebesar 99,5%. Berdasarkan hasil KLT diketahui bahwa biosurfaktan yang dihasilkan oleh ketiga isolat bakteri Bacillus spp. adalah golongan lipopeptida. Bacillus spp. yang dapat menurunkan tegangan permukaan dari minyak pelumas adalah Bacillus sp 48 yaitu sebesar 19,7 dyne/cm, Bacillus sp 34 sebesar 17,9 dyne/cm dan Bacillus sp 84 sebesar 15,7 dyne/cm. Biosurfaktan dari ketiga isolat Bacillus spp. berpotensi dikembangkan dalam berbagai bidang industri.
Aktivitas Antimikroba Bakteri Asam Laktat yang Diisolasi dari Susu Sapi di Indonesia
Authors: Suphandi Michell , Sugata Marcelia , Tan Tjie Jan
Published: June 2023

Bakteri asam laktat (BAL) diketahui memiliki potensi untuk menghambat pertumbuhan bakteri patogen. Pada penelitian ini, BAL yang diisolasi dari susu sapi di Indonesia diidentifikasi melalui pengamatan morfologi dan analisis molekuler. Pengamatan morfologi meliputi pewarnaan Gram dan endospora. Selanjutnya, identifikasi molekuler dilakukan dengan ekstraksi DNA, amplifikasi gen 16S rRNA menggunakan primer universal, sekuensing dan analisis BLAST. Uji aktivitas antibakteri dari cell free supernatant (CFS) yang dihasilkan isolat dilakukan dengan metode sumuran. Selain itu, dilakukan juga evaluasi terkait pengaruh suhu dan pH terhadap aktivitas antibakteri dari CFS. Berdasarkan pengamatan morfologi, isolat merupakan bakteri berbantuk batang, Gram positif, tidak menghasilkan endospora, dan tidak termasuk bakteri acid-fast. Hasil analisis 16S rRNA menunjukkan bahwa isolat memiliki kekerabatan yang erat dengan L. paracasei strain L1 (100%) dan L. casei strain WX121 (99,84%). Uji aktivitas antibakteri menunjukkan bahwa isolat mampu menghambat pertumbuhan E. coli dan S. aureus. Aktivitas penghambatan tersebut dipengaruhi oleh pH, tetapi tidak oleh suhu. Aktivitas penghambatan terbaik ditunjukkan oleh CFS dengan pH yang sangat rendah (pH 3). Suhu tidak mempengaruhi aktivitas antibakteri karena senyawa antibakteri yang dihasilkan isolat kemungkinan besar tahan terhadap panas.
Stock Price Reaction Following Corporate Press Releases: Evidence from Dhaka Stock Exchange (DSE), Bangladesh
Authors: Xia Liu , Fatema Nazneen , Ibrahim Abdullah Mohammed
Published: June 2023

This study examines the correlation between corporate press releases and stock prices in the Dhaka Stock Exchange. The authors collected data and used statistical analysis to determine if there was a relationship between press releases and the subsequent movement of stock prices. The results of the study showed that press releases had a significant impact on the stock prices in the exchange. The authors found that positive press releases resulted in an increase in stock prices, while negative press releases led to a decrease in stock prices. Additionally, the effect of press releases on stock prices was more significant for small and medium-sized firms compared to large firms. These findings suggest that press releases are an essential communication tool for firms to communicate with investors and can have a significant impact on their stock prices. This study provides valuable insights into the effects of press releases on stock prices in the Dhaka Stock Exchange. The findings can help firms to better understand the impact of press releases on their stock prices and to make more informed decisions about their communication strategies. It can also help investors to make better-informed decisions about their investment portfolios.
Thyroid Dysfunction in Pregnancy: A Literature Review
Authors: Pangkahila Evert Solomon , Saraswati Tangkas Luh Putu Widya
Published: June 2023

Due to structural similarities between HCG and thyroid-stimulating hormone, thyroid stimulation during pregnancy starts in the first trimester (TSH). The volume of thyroid hormone distribution increases along with placental metabolism, maternal thyroxine transport, and estrogen-mediated changes in thyroxine-binding globulin (TBG), all of which cause a 20–40% rise in early pregnancy thyroid hormone demand. Due to the human chorionic gonadotropin alpha subunit's cross-reactivity with the TSH receptor, the reference range of laboratory values for TSH is lower. High serum protein levels may alter estimates rather than direct measurements of free thyroxine (FT4), leading to reported results that are inaccurate. The clinical range of thyroid dysfunction during pregnancy can include both hyperthyroidism (Graves' disease and transitory gestational thyrotoxicosis) and hypothyroidism (overt hypothyroidism, subclinical hypothyroidism, and autoimmune thyroid disease). The risk of preterm and infant respiratory distress syndrome is increased by this malfunction.
Lifestyle Modification Determinants of Blood Pressure Status Awareness amongst Traders in A Market Community North Central Nigeria
Authors: Daniel David Aondona , Akwaras Nndunno Asheku , Kohol Abraham , Apande Paul Tersur , Dogoh Fanen , Tyovenda Kashimana
Published: June 2023

Background: Hypertension has increasingly become a public health concern in developing countries.  Awareness of blood pressure status in the light of lifestyle modification knowledge and practices is cardinal in the prevention and control of hypertension. Lack of blood pressure status awareness is associated with delayed recognition of hypertension related complications.

Aim: This study assessed the determinants of blood pressure status awareness and educated the participants on lifestyle modification practices to prevent hypertension.

Method: This was a descriptive cross-sectional study of 103 consecutive consenting adult participants in a market outreach carried out to mark World Family Physicians Day. The questionnaires were interviewer administered.  Analysis of data was done with SPSS version 20 and the level of significance was at a p-value of 0.05.

Result: Their mean age was 42.4 ± 12.4 years. There were more females 58(56.3%) than males and most of the participants were married, 72(69.9%). Those that had secondary education were 47(45.6%) and most, 95(92.2%) earned a monthly income of ≤₦49.999. Only 37.9% of the participants were aware of their blood pressure status. There was a statistically significant association between those that were not aware of their blood pressure status and those that lack knowledge of lifestyle modification practices, those that do not correctly practice lifestyle modification and those that have negative perception towards hypertension prevention. Furthermore, the participants with above mentioned attributes were less likely to know their blood pressure status.

Conclusion:  The level of blood pressure status awareness was low, those that lacked knowledge of lifestyle modification, do not practice lifestyle modification and have negative perception toward hypertension prevention were less likely to be aware of their blood pressure status.
A (RE)CONSTRUÇÃO DA ESCOLA: proposições por uma educação desenvolvente
Authors: Leite Freitas Sirley , Rosa de Souza Moisés José , Da Silva Lima Joab
Published: June 2023

Este trabalho visa apresentar duas reflexões: uma sobre a escola que vivenciamos hoje e seu modelo vigente e outra sobre a escola desenvolvente amparada no modelo pensado por Davydov e seus colaboradores. Para tanto, foi realizada uma pesquisa bibliográfica de caráter qualitativo amparada nos aportes teóricos de Davydov[1] (1987; 1988; 1999), Dusavitskii (2003), Leontiev (2004), Libâneo (2002), Saviani (2012), Vigotskii (1996; 2001), dentre outros. Primeiramente, tendo como base nossa percepção da escola atual, discutimos os moldes que a constituem. Em seguida, como contraponto a esta escola que tem enfrentado problemas em relação à qualidade de ensino que oferece, discutimos as características da escola desenvolvente, que tem como base as contribuições da Teoria Histórico-Cultural e da Teoria do Ensino Desenvolvimental. Conclui-se apresentando a escola desenvolvente como uma proposta para a superação da escola tradicional.
Counseling For Early Childhood In An Effort To Increase Learning Independence
Authors: Ermawati Eli , Warto Warto
Published: June 2023

In increasing children's learning independence at an early age, one of them is by providing guidance and counseling services that start as early as possible. Counseling guidance can be defined as a process of providing assistance to individuals and groups in terms of decision making and behavior change and helping individuals solve the problems they face. The purpose of counseling guidance services provided to early childhood is so that children can develop their skills both academically and non-academically and provide opportunities for active and preventive learning so that children can increase success in their learning. This study aims to determine the independence of learning in children at Al-Hayat Kindergarten with the Teacher. This research is descriptive qualitative research, where the data produced is in the form of descriptions and expressions of words from the subject. While this research method is in the form of interviews, observation and documentation used by researchers at Al-Hayat Kindergarten during KKN, with the aim of obtaining appropriate data about learning independence in students. Today the results of the study can be concluded that there are still many students who are still awaited by their parents and the level of independence in children who can be said to be in a less independent condition so that it is necessary to hold counseling guidance services to increase learning independence in students. This can be done by teachers by providing counseling guidance services to early childhood and parents so that children are able to develop their learning independence.