bluuebunny/crossref_metadata_2025 huggingface dataset:
Antifouling Properties of Brown Macroalgae Dictyota dichotoma Collected from the Red Sea; Comparison of Surface and Whole Thallus Extracts
Authors: Salim Basndwah Dina Saeed
Published: June 2023

The metabolites produced by the marine macroalgae are considered as a source for the natural product antifoulants. In this study, the surface and whole thallus extracts of the marine macroalgae Dictyota dichotoma was tested against a biofilm-forming bacterial strain Vibrio harveyi and barnacle larval settlement to understand the best extraction strategies for antifouling screening bioassays. The surface extracts were prepared in different time duration by dipping the algal samples for 10, 20 and 30 seconds in hexane. The results indicated that the extracts (both surface and whole thallus) obtained from the macroalgal samples have strong antifouling activities against the bacterial strain V. harveyi and barnacle larvae settlement. The extraction duration of the surface extracts strongly affected the antifouling activity. In all the assays, the surface extract obtained by 30 sec. dipping in the solvent showed high inhibitory activity than whole thallus extract. In conclusion, this study indicated the necessity for the inclusion of surface extraction methods for antifouling screening assays using marine macroalgae as a source for natural products.
Estimating the Heat Transfer Coefficient for a Jet Impingement Tube
with the Initial Cross Flow
Authors: Manh Vu D. , Le Duong T. , Nguyen Quan Q. , Pham Phuong X. , Nguyen Kien T.
Published: June 2023

Jet impingement, one of the highly efficient heat exchange enhancement methods,
is commonly used to cool down the nozzle guide vanes (NGVs) of gas turbine
engines. This method normally generates a very high local heat transfer
coefficient (up to 1,000 ÷ 3,000 W/m2) due to the presence of a high
turbulent kinetic energy region and a laminar-to-turbulent transition zone
created by the jet. In the jet impingement system, the edge tip zone of a
turbine vane is often represented by cylindrical models, while flat plate models
are adopted for the midchord region. Due to interactions between the jet flow
and the initial cross flow at the midchord region, the local heat transfer
coefficient increases remarkably. The heat transfer coefficient can be
determined through computational fluid dynamics (CFD) simulation or experimental
approaches. Available experimental methods in the current literature include the
steady-state technique, transient liquid crystal thermography technique, and
temperature oscillation technique (TOIRT). In this article, a CFD model in
ANSYS-Fluent and a TOIRT experimental system were developed to determine the
heat transfer coefficient for a jet impingement tube with initial cross flow.
The numerical model was validated by experimental results obtained in this study
along with other data reported in the literature. The results show that the
cross flow increases the average and maximum heat transfer coefficients in the
jet impingement model. However, the cross flow also significantly changes the
direction of the jet flow and the position of the stagnation zone.
Understanding sex differences when majoring in economics: what little we know, reasons for knowledge gaps, and a research agenda of unanswered questions
Authors: Allgood Sam , McGoldrick KimMarie
Published: June 2023

We provide a comprehensive review of what research on U.S. students and institutions has revealed about women’s decisions to persist in the economics major, and we identify key avenues for future research. We first document gender differences in introductory economics course enrolments and persistence in the major. We then explore commonly cited reasons for this gender gap in economics, including issues within the profession (chilly climate), the major (role models, quantitative emphasis), and classroom environment (grade sensitivity, relevance). Throughout this review we identify gaps in the existing research, focusing on the lack of generalizability of existing findings. Lack of generalizability arises because of the use of convenience data, including single institution administrative retrospective data. Based on this background, we offer a research agenda that would greatly enhance our understanding of why female students attrite at higher rates at each step of the major.
The tradeoff between economic freedom and economic performance: a classroom exercise
Authors: Mixon Franklin G. , Ressler Rand W.
Published: June 2023

This study describes a straightforward classroom exercise that highlights the general tradeoff between the level of economic freedom and economic performance (measures of a population’s well-being) using the Index of Economic Freedom (IEF) that is published annually by the Heritage Foundation. The classroom exercise focuses on the relationship between economic freedom and economic performance and is amenable to either group or individual effort by way of a brief writing project or oral presentation. The classroom exercise is tailored to both principles of economics students and those in various upper-level economics courses (e.g., comparative economic systems, public choice, and introduction to econometrics).
Problem wielokrotnego testowania w przesiewowych badaniach poligraficznych – implikacje dla bezpieczeństwa wewnętrznego
Authors: Gołaszewski Marcin
Published: June 2023

Badania poligraficzne o charakterze przesiewowym najczęściej przeprowadza się przed zatrudnieniem kandydata. Statystyka Bayesowska pomaga lepiej zrozumieć rzeczywiste znaczenie uzyskiwanych wyników testów. Zdarza się również wykonywanie badań powtórnych – najczęściej wtedy, gdy za pierwszym podejściem kandydatowi się nie powiedzie. W artykule autor rozważa różne scenariusze związane z ponownym testowaniem oraz ich konsekwencje, także w zakresie bezpieczeństwa wewnętrznego poszczególnych instytucji i państw. Poszukuje optymalnych rozwiązań, aby procedury testowania sprzyjały szczelności systemów, a zarazem pozostały wydajne i użyteczne.

The issue of multiple testing in polygraph screening – implications for internal security

Screening polygraph tests are most often conducted before a candidate is hired. Bayesian statistics help to better understand the real meaning of the test results obtained. Retesting also happens - usually when a candidate fails on the first attempt. In the article, the author considers various scenarios related to retesting and their consequences, including for the internal security of individual institutions and countries. He seeks optimal solutions so that testing procedures promote tightness in systems while remaining efficient and useful.
The issue of multiple testing in polygraph screening – implications for internal security
Authors: Gołaszewski Marcin
Published: June 2023

Screening polygraph tests are most often conducted before a candidate is hired. Bayesian statistics help to better understand the real meaning of the test results obtained. Retesting also happens - usually when a candidate fails on the first attempt. In the article, the author considers various scenarios related to retesting and their consequences, including for the internal security of individual institutions and countries. He seeks optimal solutions so that testing procedures promote tightness in systems while remaining efficient and useful.
Analysis of Determination of Sea Toll Routes in Eastern Indonesia (KTI) Using Dynamic Programming
Authors: Ernawati Regita , Surjaatmadja Surachman , Widodo Pujo , Sarah Herlin Jr. , Suwarno Panji , Marchio Marchio , Wiranto Surya
Published: June 2023

The sea highway program is part of the fourth pillar, namely the pillars of the maritime economy, infrastructure and increasing welfare, one of the seven pillars of Indonesia's Maritime Policy (KKI). The aim of the Sea Highway Program is to grow the maritime economy by turning the sea into a production and marketi ng center between the Indonesian territory and the islands and surrounding areas. This study aims to analyze the decision of maritime highway routes in Eastern Indonesia Region (KTI) in order to provide the best route with a minimum distance. Four shipping highway routes from Surabaya to Eastern Indonesia Region, namely route T-13 (Tanjung Perak-Rote (Ndao)-Sabu (Biu)-Tanjung Perak), T-14 (Tanjung Perak-Lembata (Lewoleba)-Tabilota/Larantuka- Tanjung Perak), T-15 (Cape Perak-Makassar (Soekarno Hatta)-Jailolo-Morotai (Daruba)-Tanjung Perak), and T-18 (Tanjung Perak-Badas-Bima-Merauke (Kelapa Lima)-Tanjung Perak) combined into 1 (one) route from Tanjung Perak to Merauke, resulting in 1 (one) optimal route with the minimum distance obtained from the smallest value at each stage . This study uses quantitative methods and Multistage Graph problem-solving techniques with Dynamic Programming backward or bottom-up methods, and primary data collection through interviews and secondary data such as: documents/journals/books. The selected optimal route is (Tanjung Perak-Makassar-Tabilota/Larantuka-Sabu (Biu)-Merauke (Kelapa Lima)) with a distance from Tanjung Perak to Makassar is 437 Nm. Makassar to Tabilota/Larantuka is 340 Nm. Tabilota/Larantuka to Sabu (Biu) is 163.8 Nm. Sabu (Biu) to Merauke (Kelapa Lima) is 1261.24 Nm. So that the total shipping distance from Tanjung Perak to Merauke is 2202.04 Nm.
Topographic Gradient Differentiation and Ecological Function Zoning Based on Ecosystem Services: A Case Study of Fuping County
Authors: He Ling , Du Zhe , Tian Jiabo , Chen Shuqi
Published: June 2023

Scientifically delineating ecological function zones is essential for national territory spatial planning and comprehensive management. In this study, we evaluated five ecosystem services, habitat quality, water yield, carbon sequestration, soil conservation, and food production, in Fuping County, China, and introduced the application of the topographic position index in exploring the topographic gradient effect of each service. We next applied the K-means clustering algorithm to identify the ecosystem services bundles and analyze the dominant type of ecosystem service in these bundles. A particle swarm optimization-support vector machine model was also constructed to identify the boundaries of ecological function zones and complete the ecological function zoning. The results are as follows: (1) In Fuping County, the high-value areas of habitat quality are distributed in the west, north, and southeast; those of soil conservation are in the northwest, northeast, and southwest; those of water yield are in the east and south; those of carbon sequestration are in the west, and those of food production is in the east. (2) The habitat quality first decreases and then increases with an increasing topographic gradient; food production and water yield decline with increasing topographic gradient; carbon sequestration and soil conservation increase with increasing topographic gradient. (3) Four types of ecosystem services bundles were identified. The dominant ecosystem functions of Type I, II, and III bundles are food production and water yield, carbon sequestration, and soil conservation, respectively. Type IV bundles generally have low levels of ecosystem services in the study area. (4) Four ecological function zones were delineated: food production zone, ecological conservation zone, potential restoration zone, and critical restoration zone. The research findings can provide a theoretical and practical basis for formulating and implementing ecological spatial management policies in the Taihang Mountains of China.
RFID and IoT Enabled Framework to Make Pune City an Eco-friendly Smart City
Authors: Patil Sangram C. , Gidde Milind R.
Published: June 2023

The increasing volume and complexity of waste associated with the modern economy pose a serious risk to ecosystems and human health. Due to the intensive increase in computation, Machine learning is popular. Intelligent solid waste management motivates the Swachh Bharat mission to celebrate the 150th anniversary of the birth of astrapita Mahatma Gandhi. In the context of smart city development, an innovative means of implementing smart solid waste collection is to improve daily solid waste collection at the household level. An intelligent solid waste collection system will be implemented in the Smart City to improve solid waste collection. It is required to educate households about solid waste handling. Municipal Corporation can implement an innovative PPP model as part of an independent India campaign to motivate startup ntrepreneurs, which will generate jobs in India. The city of Pune is in a phase of intelligent urban mobility development to improve citizens’ living standards. Ensure safe traffic management, adequate water supply, smart amenities, and services such as the intelligent collection, transport, and processing of solid waste. RFID and IoT base IT solutions have the potential to develop sustainable, innovative technology to achieve 100% household collections and transportation and treatment of waste so that to minimize waste to send landfill side.
Nesting Site Preferences of Ratufa indica indica in the Umblebyle Range Forest, Bhadravathi Division, Shimoga, Karnataka
Authors: Rekha V. Hamsa , Shwetha A.
Published: June 2023

Malabar Giant Squirrel (Ratufa indica indica) is one of the four subspecies endemic to India (Abdulali 1952), common to northern and central Western Ghats among species Ratufa indica belonging to Subfamily Ratufinae. The study was designed to analyze the nest tree preferences of animals in the dry deciduous forests of the Umblebyle range, Shimoga, Karnataka (South India) during February, March, and April 2021, surveying 20 transects covering a distance of 47.7 km. Nest tree preferences were assessed by observing 406 dreys (nests) on 385 trees covering an area of 8350.89 ha. The nest trees came from 20 families and 41 species, with 12 tree species in the Family Fabaceae and 84 trees in the Terminalia paniculata having the highest preference. The Squirrels showed the highest preference for deciduous trees over semi-evergreen and evergreen trees. The most preferred tree height and nest height ranged between 11-20m, including 87.53% of nesting trees and 83.89% of nests, respectively. The average nest height was estimated to be 14.73 (±3.311) m, with a minimum and maximum height of 7 m and 28 m, respectively. The difference between average tree height and average nest height was 1.512m.
Measurement of Black Carbon Absorption Coefficients Using an Aethalometer and Their Association with Visibility
Authors: Hamasha Khadeejeh M.
Published: June 2023

Black carbon (BC) is a pollutant aerosol affecting climate and human health. Light absorption coefficients of black carbon (Babs) were measured using an aethalometer model AE33 at wavelengths 370, 470,520,660,880, and 950 nm. Babs for the seven wavelengths at seven sites in Jordan fluctuated with time and peaked at rush hours. The daily average values for all sites were inversely proportional to the wavelength. The average daily visibility values in the seven Jordan sites varied between 72 km and 211km. In the Irbid site, the daily average visibility values for 7-13 Nov. 2021 varied between 43 km and 107 km. BC varied from hour to hour and from day to day. The daily average values of BC in Irbid for the period of 7 -13 Nov. 2021 varied between 2.24 μg.m-3 and 4.66 μg.m-3. BC peaked at the rush hour and had the lowest values on Friday. About 90% of the measured BC was from fossil fuel sources and 10% from biomass-burning sources.
Analyses of Polycyclic Aromatic Hydrocarbons (PAHs) in the Ganga River Water in Uttar Pradesh, India
Authors: Sonwani Poonam , Bharti Sandhya
Published: June 2023

Polycyclic aromatic hydrocarbons (PAHs) were analyzed in the Ganga River water samples collected from three cities. Jajmau (Kanpur), Dala Khera (Fatehpur), and Kara Kachar (Kaushambi) of Uttar Pradesh, India. At Jajmau (Kanpur), out of sixteen PAHs, eight were found in the Ganga river water in concentration (μg.L-1) order: acenaphthylene (3.8356) > pyrene (0.5878) > fluorene (0.5752) > anthracene (0.2806) > benzo(b)fluoranthene (0.1960) > phenanthrene (0.0526) > benzo(a)pyrene (0.0234) > naphthalene (0.006). In contrast, in Dala Khera (Fatehpur), two PAHs: anthracene (0.2806) and fluorene (0.07894), were observed. In Kara Kachar (Kaushambi), only single phenanthrene (0.04507) was detected. It was noticed that the three-ring types of PAHs occur commonly in all three sites. It is concerning because the river water sampled had PAH concentrations, namely Acy, Flu, Phe, and Pyr, that were relatively higher than those recommended (0.05 μg.L-1) by WHO (1998) in surface water. In contrast, the amounts of Nap, Ant, BbF, and Bap were recorded within the safe levels in Kanpur, while in the other two cities (Fatehpur and Kaushambi), Phe and Ant were detected lower than their permissible limit. Flu was measured as higher than its recommended value by WHO (1998). Similarly, the concentration of Acy, Ant, Pyr, BbF and BaP in river water samples at Jajmau, Kanpur were higher than their safe limits suggested by RIVM report 607711007/2012 for inland surface water while Nap, Flu, and Phe were lower than their recommended values. However, at, Dala Khera and Kara Kachar (Fatehpur and Kaushambi respectively), the concentrations of Ant, Flu and Phe were lower than their prescribed limits given by RIVM 607711007/2012.
Effects of Traffic on Particulate Matter (PM2.5) in Different Built Environments
Authors: Gupta Naina , Ram Sewa
Published: June 2023

Globally, vehicular pollution is one of the greatest concerns in urban areas. Several studies on air pollution have been conducted using deterministic, statistical, and soft computing methods. However, there has been little research on how soft-computing methods like Artificial Neural Networks (ANN) can help us comprehend vehicular pollution’s non-linear and highly complex dispersion. This study uses an ANN-based vehicular pollution model to investigate the effect of vehicular traffic on PM2.5 concentrations in built-up and open terrain-surrounding environments. Five distinct pollution models were developed for two locations in Delhi, considering PM2.5 pollutants, meteorological variables, traffic flow, and traffic composition into account. The results concluded that under open terrain conditions, the significance of the traffic variable in its association with PM2.5 is almost half the significance observed under built-up conditions. Also, in terms of PM2.5 reductions, the maximum reduction observed at Location-1 (built-up environment), and Location-2 (open terrain environment) is 1.85 and 2.44 times the percent reduction in traffic during peak hours, respectively. The study’s findings have significant ramifications for the current practices of ignoring the contribution of traffic and the built environment to pollution and adopting measures like an odd-even rule and high fuel and parking prices to combat pollution.
Effects of Corn Straw Biochar, Soil Bulk Density and Soil Water Content on Thermal Properties of a Light Sierozem Soil
Authors: Li Y. Q. , Li L. J. , Zhao B. W. , Zhao Y. , Zhang X. , Dong X.
Published: June 2023

This research aimed to quantify the effects of biochar derived from corn straw on soil thermal conductivity, capacity, and diffusivity. Firstly, the amount of biochar application (w/w) added to light sierozem soil was 0% to 5%, and the mixtures were packed into soil columns at a consistent bulk density (1.20 g.cm-3). Secondly, soil columns with a consistent biochar addition rate (5%) were packed to different bulk densities of 1.30, 1.25, 1.20, 1.15, and 1.10 g.cm-3. Soil thermal characteristics were measured under the control of soil moisture content from 0% to 40%. Under consistent bulk-density conditions, biochar could significantly reduce soil thermal conductivity and diffusivity. Still, there wasn’t a significant influence on soil heat capacity in most soil moisture content levels. With the decrease of soil bulk density, soil thermal conductivity, capacity, and diffusion coefficient reduced significantly. As soil water content increased, all the indexes of thermal properties largely improved, and the effects were much more significant than those of biochar amendment and bulk density change on soil thermal performances. This research could supply an implication to evaluate the influence of biochar amendment on soil thermal performances.
Purification Efficiency of Eutrophic Water by Three Submerged Plants
Authors: Hu Y. , Qian D. X. , Zhu H. , Wang L. F. , Wang B. , Ling Q. F. , Xiao X. D.
Published: June 2023

The increase of nitrogen and phosphorus causes eutrophication in water bodies. Using submerged plants to decrease the pollution from water bodies is an effective way. In this research, three common submerged plants (Vallisneria natans, Hydrilla verticillata, and Ceratophyllum demersum) and their combinations were used to purify eutrophic water. The control treatment did not contain any plants. The removal effects and dynamic regulations of the three plants with their combinations of nutrients (such as nitrogen and phosphorus) in water were analyzed. All three species and their combinations above could grow in the eutrophic water and efficiently remove aquatic nutrients. All the treatment groups had a higher pollutant removal rate for total nitrogen (TN) and total phosphorus (TP) than that of the blank control. In these treatment groups, treatment F (50 g Vallisneria natans plus 50 g Ceratophyllum demersum) had the highest removal rate of TP at 57.53%; treatment B (100 g Vallisneria natans) had the best removal rate of TN at 92.04 %. Among these plants and their combinations, Vallisneria natans and Ceratophyllum demersum showed better purification ability; the combination of these two submerged plants and the combination of three submerged plants were more applicable for the restoration of eutrophic water.
Molecular Docking Analysis of Embelia ribes for Selected Constituents as Spodoptera frugiperda (Fall Armyworm) Beta Glycosidase and Caspase-1 Inhibitors
Authors: Kumaraswamy Srinivasan , Prabhakaran Vasantha-Srinivasan , Narayanaswamy Radhakrishnan
Published: June 2023

Insect pest control is one of the major issues facing the agriculture sector because of the need for new agrochemicals and biocontrol agents that are environmentally friendly, economically affordable, and safe for human health. Spodoptera frugiperda (fall armyworm) is one of the insect pests that causes huge damage to various crops around the globe due to its generalist nature. In the present study, three selected Embelia ribes Burm F (Myrsinaceae) constituents, which include embelin, 5-O-methylembelin, and vilangin; one semi-synthetic compound (potassium embelate); three synthetic compounds, namely coenzyme Q10, dopaquinone, and idebenone; and two reference compounds (azadirachtin and amitraz) were assessed on the docking behavior of S. frugiperda (beta glycosidase and caspase-1. The docking studies showed that coenzyme Q10 exhibited the highest binding energies (-130.61 and -434.56 kcal.mol-1) for the target enzymes S. frugiperda (beta glycosidase and caspase-1, respectively). Thus, the present investigation provides new knowledge in understanding Embelia ribes Burm F (Myrsinaceae) constituents as possible inhibitors against S. frugiperda (beta glycosidase and caspase-1) enzyme activities. Furthermore, the present work can help to develop new insecticides and pesticides against S. frugiperda and other related insect pests.
El símbolo de la Jerusalén celeste: nuevas aproximaciones filosóficas
Authors: Antón Pacheco José Antonio
Published: June 2023

La imagen bíblica de la Nueva Jerusalén o la Jerusalén celeste también ha sido interpretada a través de categorías filosóficas, singularmente platónicas (Filón de Alejandría, gnósticos, Orígenes). Esta exégesis está posibilitada por la pertenencia de esa imagen a la dimensión ontológica de los símbolos axiales y de construcción que nos manifiesta el análisis fenomenológico de la noción de lugar o espacio cualitativo.
Recurring Service Agreement (RSA)
Authors: Bharath R  , Arul Murugan M  , Murugesan S  , Vigneshwaran R  , Alexander B  , Gunasekaran J  , Dineshbabu C
Published: June 2023

An RSA application is an application program that stores Dona's remote server and delivered it over the Internet through a browser interface. They hold various tools and techniques to help organizations to solve the problems faced in business and succeed. They should be kept on a separate platform and not tied to a field service software system. Recurring Service Platform where I can control our service agreements in a safe environment. Our goal is to develop a web application that can create, manage and schedule the task for the service providers based on the customer's request and also to calculate and maintain in voices for the tasks performed by service providers and provide a secure way of transferring the fee by the customers. It’s easy-to-use platform allows me to input our customer’s data and service contract on a secure platform and makes contract management a breeze. The concept of this application is to generate the financial status such as monthly income, business profit, and taxes of a registered client as a report. Additionally, appointments for a particular company with their customers will also be scheduled using Recurring Service Agreements application. This application will be more beneficial for the customers who are more than one business to handle the recurring revenue.
DATA POISON DETECTION USING MACHINE LEARNING
Authors: Buvaneswari M  , Ramalakshmanan Alias Manikandan U  , Ram Kumar K  , Selvabharathi S
Published: June 2023

Distributed machine learning (DML) can realize massive dataset training when no single node can work out the accurate results within an acceptable time. However, this will inevitably expose more potential targets to attackers compared with the non-distributed environment. In this paper, we classify DML into basic-DML and semi-DML. In basic-DML, the center server dispatches learning tasks to distributed machines and aggregates their learning results. While in semi-DML, the center server further devotes resources into dataset learning in addition to its duty in basic-DML. We firstly put forward a novel data poison detection scheme for basic-DML, which utilizes a cross-learning mechanism to find out the poisoned data. We prove that the proposed cross-learning mechanism would generate training loops, based on which a mathematical model is established to find the optimal number of training loops. Then, for semi-DML, we present an improved data poison detection scheme to provide better learning protection with the aid of the central resource. To efficiently utilize the system resources, an optimal resource allocation approach is developed. Simulation results show that the proposed scheme can significantly improve the accuracy of the final model by up to 20% for support vector machine and 60% for logistic regression in the basic-DML scenario. Moreover, in the semi-DML scenario, the improved data poison detection scheme with optimal resource allocation can decrease the wasted resources for 20-100%.
Photochemical investigation of medicinal plant Hippophae Rhamnoides
Authors: Aman khajuria  , Dr. Arti Chaurasia
Published: June 2023

The sea buckthorn plant (Hippophae rhamnoides L.) helps treat a wide range of short- and long-term illnesses. Its therapeutic and pharmacological properties have been extensively studied through the use of many in vitro and in vivo models. Undoubtedly, the future offers much potential for SBT bio-actives. There are 18 distinct kinds of essential amino acids and 24 critical minerals in seabuckthorn juice. In addition to a healthy balance of omega-3 to omega-6 fatty acids, the oil extracted from seabuckthorn seeds is particularly rich in oleic acid. In addition to protecting the skin from harmful UV rays, the oil helps keep the skin healthy. Traditional uses of the plant to heal a wide range of diseases have been confirmed and built upon by recent scientific research. Those in fields as diverse as biotechnology, nutraceuticals, pharmaceuticals, cosmetics, and the environment may all learn something from the seabuckthorn shrub because of its unique and valuable features. Hypertension, edoema, ulcers are just some of the ailments that this plant's berries, seeds, and leaves are used to cure in its traditional folk medicine form. other beneficial chemicals have all been identified via phytochemical analysis. Our research showed that SBL has a lot of valuable nutrients, including protein and minerals.The optimal conditions for organic acid profiling in SB berries were initially established using RP-HPLC-DAD analysis. The plant's beneficial and therapeutic characteristics have been studied intensively for decades. The presence of bioactive substances such as triterpenoids, saponins, and ellagitannins gives Hippophae rhamnoides its therapeutic potential.
A Comprehensive Perspective of Different Compensators of Railway Traction System
Authors: Ashish Kumar  , Amit Kumar Singh  , Sumit Kumar  , Aman Kumar Rajan  , Abhishek Patel
Published: June 2023

Due to their non-linear load characteristics, train locomotives play a significant part in the installation of railway electrification in India and around the world. Numerous techniques have been researched and used with both AC and DC locomotives to enhance power quality. The development of train locomotives is used in this research to provide a viewpoint on various power quality issues as well as to explore the demand for power quality problems and system requirements for acceptable power quality. The many sorts of compensation schemes are contrasted with one another. this would help academics and engineers working on railway electrification.
A SURVEY ON CANCER SUBTYPING BASED ON DEEP LEARNING USING PAN-CANCER AND MULTIOMIC DATA
Authors: S.Keerthana  , K.Shanmugapriya
Published: June 2023

Tumor subclasses with clinical implications are identified by breast cancer gene expression patterns. In this study, ROBERT TIBSHIRANI et al. make a suggestion. Based on changes in gene expression, the tumours were divided into three groups: basal epithelial-like, ERBB2-overexpressing, and normal breast-like. Two separate gene sets, one representing a collection of 456 cDNA clones originally chosen to reflect intrinsic tumour features and the other being a gene set that was highly correlated with patient prognosis, were clustered to reveal that both groupings were quite robust. The basal-like subtype had a dismal prognosis, and the two oestrogen receptor-positive groups had significantly different outcomes, according to survival studies on a sub cohort of patients. In this study, three fibroadenomas and 78 breast carcinomas were examined. This collection comprises of 40 tumours that have already been studied and characterised. A total of 85 tissue samples from 84 individuals were examined.
MACHINE LEARNING AT THE EDGE: A DATA-DRIVEN ARCHITECTURE WITH APPLICATIONS TO 5G CELLULAR NETWORKS
Authors: S.Maheswari  , B.Deepa  , S.Keetha  , G.Suganthi
Published: June 2023

To meet the ultra-low latency demands of future applications, the fifth generation of cellular networks (5G) will rely on edge cloud installations. In this research, we show that similar deployments may also be deployed in mobile networks to allow sophisticated data-driven and Machine Learning (ML) applications. We propose an edge- controller-based cellular network design and assess its performance using real-world data from hundreds of base stations of a large US operator. In this context, we will discuss how to dynamically cluster and associate base stations and controllers based on users' worldwide movement patterns. The controllers will then be used to run ML algorithms to forecast the number of users in each base station, as well as a use case in which these predictions are utilized by a higher-layer application to direct vehicular traffic based on network Key Performance Indicators (KPIs). We demonstrate that prediction accuracy increases when based on machine learning algorithms that depend on the controllers' view and, as a result, on the spatial correlation provided by user mobility, compared to when the prediction is based only on the local data of each individual base station.
Improving Working Readiness through Mastering Soft Skills
Authors: Ingsih Kusni , Suhana Suhana
Published: June 2023

The current study aims to examine and analyze the effect of soft skills on working readiness. Respondents of the current study were active students from several universities in Indonesia. The sampling technique used is non-probability sampling, namely convenient sampling. Data analysis were performed using multiple linear regression. The results show that learning throughout life skills, creativity, teamwork skills, and leadership skills significantly influence on working readiness. Meanwhile, problem-solving skills, communication skills, and ethics have no significant effect on working readiness. The results of the current study provide a theoretical contribution regarding the relationship between soft skills and working readiness. Future research is urgent to conduct to provide a clearer picture of the relationship between soft skills and working readiness. The current research gives students awareness to improve their soft skills. The study also provides a managerial contribution for universities to formulate the concept of developing soft skills for their students.
Determinantes de la aspiración al crecimiento del negocio de los emprendedores colombianos
Authors: González Espitia Carlos Giovanni , Sarmiento García Victor Manuel , Arboleda Cuesta Jhonnier Marcelo
Published: June 2023

Este artículo tiene como objetivo estimar la probabilidad de las aspiraciones al crecimiento de los negocios de los emprendedores colombianos de acuerdo a la generación en la que nacieron. Existe una amplia literatura sobre los determinantes de la aspiración al crecimiento de los negocios, pero no existe mucha evidencia empírica de los posibles efectos derivados de pertenecer a una generación en específico. Se utilizó información proveniente del Global Entrepreneurship Monitor para el periodo entre 2006 y 2017. En particular, los datos fueron tomados de la Adult Population Survey, que mide ciertas características relevantes sobre emprendedores alrededor del mundo. De acuerdo con una muestra de 6.670 individuos se estimaron tres modelos de regresión logística ordinal, uno para cada generación: los Baby Boomers, la Generación X y la Generación Y-Millenials. Los resultados muestran que los emprendedores más jóvenes, los Millenials, tienen una concepción de la vida muy diferente a sus antecesores en relación a la visión sobre la actividad emprendedora como una opción de vida. De hecho, factores estructurales como el género, la educación y el motivo para emprender, resultan significativos para todas las generaciones. Sin embargo, factores relacionados con el contexto como sus habilidades, el temor al fracaso, el reconocimiento y su visión del emprendimiento como una carrera deseable, tienen efectos diferentes en cada generación. Estos resultados son relevantes para el desarrollo de políticas públicas y estrategias empresariales asociadas al emprendimiento en regiones en desarrollo.
Antiemetics in hematopoietic cell transplantation:
Authors: Arcuri Leonardo
Published: June 2023

Antiemetics play a key role in hematopoietic cell transplantation (HCT). High-dose chemotherapy and total body irradiation (TBI) have a high emetogenic potential, and vomiting and nausea during conditioning regimen and thereafter impair oral intake, which can lead to weight loss, hyperglycemia due to parenteral nutrition, infectious disease, and increased transplant-related mortality. We searched for randomized trials on antiemetics in HCT. Triplet prophylaxis with a 5-HT antagonist, an NK-1 antagonist, and dexamethasone is a common practice in hematopoietic cell transplantation. Prophylaxis is usually given during the conditioning regimen and sometimes up to a few days later. NK-1 antagonist usage is supported by randomized trials. Olanzapine reduces nauseas, based on a randomized trial. Although recommended by the ASCO guideline, the use of dexamethasone should be considered controversial given the higher incidence of adverse events with this medication in a randomized study and given a possible higher risk of infections, and therefore dexamethasone should be used with caution as an antiemetic in hematopoietic cell transplantation. Metoclopramide, diphenhydramine, and lorazepam are other drugs that also have antiemetic activity, have been used in HCT, and can be used in selected cases.
Cardiotoxicity after autologous hematopoietic stem cell transplantation (AHSCT): longitudinal and observational study
Authors: Elias Hallack Neto Abrahão
Published: June 2023

Objectives: To assess incidence and extent of early cardiotoxicity after autologous hematopoietic stem cell transplantation (AHSCT).

Methods: Study carried out in two bone marrow transplant centers, in public and private hospital, located in interior of Minas Gerais, Brazil. All patients who underwent AHSCT at centers between March 2018 and May 2019 and October 2019 were included. Altered results were classified according to Brazilian Cardio-Oncology Guidelines.

Results: Of the 36 patients evaluated, seven (21.2%) had cardiotoxicity on echocardiography, with mean left ventricular ejection fraction decreasing from 71.53 to 64.75% before and after conditioning (p = 0.00013). Clinical cardiovascular alterations were associated with advanced staging and time of more than one year between diagnosis and AHSCT (p=0.01 in both cases). Specific clinical signs of congestion were correlated with radiotherapy to the mediastinum and a dose >400 mg of doxorubicin before AHSCT (p=0.02 and p=0.01, respectively).

Conclusions: Thus, higher incidence of cardiac injury was observed after AHSCT, which was related to type of pre-transplant therapy. This fact reflects our limitations and leads us to seek improvements in cardiovascular assessment of patients undergoing AHSCT, in order to reduce morbidity and mortality associated with myocardial injuries in these patients.
Factores que influyen en la participación de los estudiantes en entornos virtuales de aprendizaje
Authors: Castellanos González Thania Griselda
Published: June 2023

PROBLEMA: en la modalidad de enseñanza virtual no se observa una participación adecuada de los estudiantes, quienes no encienden las cámaras, no manifiestan dudas ni realizan comentarios y no responden interrogantes durante el desarrollo de una clase. OBJETIVO: establecer cuáles son los factores que influyen en la participación de los estudiantes en entornos virtuales de aprendizaje de la carrera de Administración de Empresas. MÉTODO: el enfoque del estudio fue cuantitativo, con alcance descriptivo con un diseño no experimental. Se encuestó a 5 docentes y 175 estudiantes del primer semestre de una universidad privada con sede en el municipio de San Miguel Petapa. RESULTADOS: se identificó que las actividades que motivan la participación grupal e individual de los estudiantes son, documentos compartidos de Google, foros de discusión, conversatorios y herramientas digitales. Además, se determinó que para mantener la comunicación los docentes organizan grupos de WhatsApp. CONCLUSIÓN:  se pudo establecer que  los factores que influyen en la participación de los estudiantes en entornos virtuales de aprendizaje de la carrera de Administración de Empresas son lo siguientes, los documentos compartidos de Google que estimulan la participación grupal, los conversatorios y foros de discusión motivan la participación individual en el desarrollo de una clase virtual y para mantener una comunicación efectiva entre docentes y estudiantes se realiza a través de la aplicación de WhatsApp.
Aciertos del programa de maestría en docencia universitaria con énfasis en tecnologías innovadoras de educación
Authors: Yax Patzán Gloria Elizabeth
Published: June 2023

PROBLEMA: ¿Cuáles fueron los aciertos y desafíos, enfrentados para la creación e implementación de la Maestría en Docencia Universitaria con énfasis en Tecnologías Innovadoras de la educación en la FAHUSAC, en modalidad a distancia en entornos virtuales? OBJETIVO: identificar los aciertos y desafíos a los que se enfrentó la Escuela de Estudios de Postgrado de la Facultad de Humanidades en la implementación de la Maestría en Docencia Universitaria con énfasis en Tecnologías Innovadoras de la educación en modalidad a distancia en entornos virtuales, años 2018 a 2020. MÉTODO: la información se obtuvo con graduados de la primera cohorte de la Maestría, el estudio es de tipo exploratorio, cualitativo aplicando cuestionario con preguntas abiertas. Se trabajó con 8 docentes, personal administrativo y 30 de 51 graduados, cohorte 2018-2020. RESULTADOS: el 50 % de los docentes manifestaron que los aciertos relevantes fueron la actualización en nuevas tecnologías y la ampliación de cobertura numérica y geográfica para los estudiantes; para el 75 % de los docentes el mayor desafío fue la actualización constante de las nuevas aplicaciones y plataformas digitales; entre las fortalezas de la maestría, los graduados destacaron el excelente cuerpo docente que tiene y el alto nivel académico. CONCLUSIÓN: para los docentes y graduados los mayores retos y desafíos fue el dominio de la tecnología y la conectividad a una red.
Creación de una revista digital para la divulgación de artículos científicos
Authors: Rodriguez Rivas Andrea Regina
Published: June 2023

PROBLEMA: la falta de divulgación de las investigaciones científicas que realizan los miembros de la Academia de Ciencias Médicas, Físicas y Naturales de Guatemala. OBJETIVO: crear una revista digital para divulgar las investigaciones científicas que realizan los miembros de la Academia en sus tres áreas. MÉTODO: se utilizó el método de investigación acción en su enfoque cualitativo, el cual se refleja en la colaboración e involucramiento de los coinvestigadores en todo el proceso tomando en cuenta sus opiniones, sugerencias y mejoras. El tipo de muestra utilizado para este proyecto fue el no probabilístico homogéneo, por medio del cual los sujetos investigados han sido seleccionados por tener características similares entre sí. En este sentido, se tomó como sujetos a investigar a profesionales de carreras científicas que pertenecen a la Academia de Ciencias Médicas, Físicas y Naturales de Guatemala, quienes han sido elegidos por medio de un proceso de selección. RESULTADOS: se obtuvo una revista digital diseñada y diagramada de acuerdo con las tendencias de diseño editorial actuales, creando una paleta de colores e imagen gráfica para esta, colocada en la página web de la Academia con visualización para el público en general CONCLUSIÓN: la revista digital de divulgación de la investigación científica que realizan los miembros de la Academia contribuye a que el conocimiento científico sea visible dentro y fuera de la institución.
Percepción de estudiantes y técnicos sobre los módulos del área de Matemáticas
Authors: Cumatzil Morales Enma Sucely
Published: June 2023

PROBLEMA: ¿Cuál es la percepción de estudiantes y técnicos sobre los módulos del área de Matemáticas? OBJETIVO: analizar la percepción que tienen los estudiantes y técnicos sobre los módulos de aprendizaje para el área de matemáticas del Programa Nacional de Educación Alternativa (PRONEA). MÉTODO: se utilizó el enfoque mixto, el diseño de triangulación concurrente y alcance descriptivo y explicativo, se aplicaron encuestas a 54 estudiantes de la primera etapa de básico y a 23 técnicos del PRONEA contratados durante el año 2019, además se realizaron entrevistas con la coordinadora nacional de extraescolar y con dos técnicos con especialidad en matemáticas. RESULTADOS: entre los hallazgos al aprendizaje de las matemáticas en los jóvenes y adultos del programa Nacional de Educación Alternativa resalta que se les dificulta realizar tareas con los módulos de aprendizaje y necesitan la orientación del técnico, mientras que los técnicos indican que los contenidos deben mejorarse para que los estudiantes puedan aprender. CONCLUSIÓN: el Programa Nacional de Educación Alternativa necesita un currículo más contextualizado y enfocado a la población de jóvenes y adultos donde los contenidos de los módulos de aprendizaje principalmente del área de matemáticas presenten problemas más lógicos que se enfoquen a la vida cotidiana; es preciso mejorar la formación de los técnicos en la didáctica de la matemática enfocados en la andragogía.
Competencias gerenciales de las empresarias en las mypes
Authors: Mascarúa Alcazar Miguel Antonio , Ruíz Contreras Angelica Belén , Rodríguez Suárez Cristina
Published: June 2023

El objetivo del presente estudio es hacer un análisis sobre las competencias gerenciales de las mujeres empresarias en la ciudad de Tehuacán, Puebla. En un inicio, los datos estadísticos (254 que participaron en una encuesta) señalan que las mujeres empresarias tienen limitadas cualidades de dirección como competencias gerenciales centrales y mejores competencias de liderazgo. Pero un análisis de correlación de variables muestra que las estrategias de negocio se orientan hacia estrategias competitivas de manera empírica, lo que les ha permitido mantener los negocios y tener la visión de impulso para interactuar con sus trabajadores.
Analisis Faktor Determinan Kinerja BPRS di Indonesia Periode 2011-2019
Authors: Adi Sunu Prasetya , Wibowo Muhammad Ghafur
Published: June 2023

The main objective that BPRS have is to maximize their performance. Several problems that can disrupt the performance of BPRS are the characteristics of BPRS which not providing payment traffic services, and total assets, total financing and Third Party Funds (DPK) that BPRS have are lower than other types of Islamic banking. This study aims to analyze the factors that can affect the performance of the BPRS. This study uses 31 BPRS in Indonesia, where all data is obtained from the December quarterly reports of each BPRS on the website of the Financial Services Authority (OJK) with the period 2011 to 2019. The data analysis technique used in this study is panel data regression analysis. The results of the study found that the variables that had a significant influence on the performance of the BPRS were total assets, NPF and CAR.
Pengaruh Nilai Output Dan Jumlah Unit Usaha terhadap Penyerapan Tenaga Kerja Pada Industri Besar dan Sedang di Provinsi Sumatera Utara
Authors: Gulo Berkat Juni Krisman , Hia Iman Totonafo Saro , Kartika Widya , Tanjung Ahmad Albar
Published: June 2023

This study aims to provide an explanation of the effect of output value and number of business units on employment in large and medium industries in 8 cities in North Sumatra Province. This research is a quantitative research with descriptive method with data collection techniques in documentation. The use of data in this study uses cross section and time series data taken from 8 cities in North Sumatra Province in 2010-2019. Regression analysis used in this study is panel data regression analysis with E-Views 10 analysis tool. The results of the study show that partially (t test) the output value and the number of business units have a positive and significant effect on employment in large and large industries. currently. Simultaneously (f test) the output value and the number of business units have a significant effect on employment in large and medium industries.