bluuebunny/crossref_metadata_2025 huggingface dataset:
Antiproliferative activity from five Myrtaceae essential oils
Authors: Santos Catarina dos , Melo Natalia Covre de , Ruiz Ana Lucia Tasca Gois , Floglio Mary Ann
Published: March 2023

The Myrtaceae plants are cultivated for their edible fruits and folk medicinal uses. Likewise, their leaves, flowers, and fruit essential oils (EOs) are described to have antiproliferative, antimicrobial, and antioxidant activities. This work analyzed the chemical compositions and evaluated the antiproliferative activities of essential oils (EO) of Myrcia bella Cambess, Myrcia fallax (Rich.) DC., Myrcia guianensis (Aubl.) DC., Eugenia aurata O. Berg, and Eugenia punicifolia (Kunth) DC, from the Brazilian Cerrado. EOs were obtained by leaf hydrodistillation and analyzed by Gas Chromatography-Mass Spectrometry (GC-MS) plus Gas Chromatography-Flame Ionization Detector (GC-FID). The major component in M. bella was α-cadinol (14.4%); in Myrcia fallax (Rich.) DC., guaiol acetate (14.4%); and in M.guianensis, (E)-iso-g‑bisabolene (17.5%). For E. aurata and E. punicifolia, bicyclogermacrene (25.3%) and (E)-caryophyllene (18%), respectively, were the most relevant chemical constituents. The EOs were tested against the human tumor cell lines UACC-62 (melanoma), MCF7 (breast), 786-0 (kidney), NCI-H460 (lung), OVCAR-3 (ovarian), HT29 (colon), and K562 (leukemia) and one non-tumor cell line (VERO). Eugenia aurata presented the most promising effect against HT29 (TGI = 1.5 mg/mL), K562 (TGI = 5.0 mg/mL), and no toxicity against non-tumor VERO cells (TGI> 250 mg/mL). For the other EOs, moderate to no activity was observed. So, in conclusion, E. aurata EOs revealed a good potential for anticancer applications.
Impacto da qPCR na avaliação diagnóstica de indivíduos com suspeição de hanseníase
Authors: Pinheiro Marcos Daniel Silva , Oliveira Nathan Guilherme de , Santos Daisy Cristina Monteiro dos , Leite Heloine Martins , Baptista Ida Maria Foschiani Dias , Fairley Jessica K. , Fraga Lucia Alves de Oliveira
Published: March 2023

Introdução: A hanseníase é uma infecção crônica causada pelo Mycobacterium leprae acometendo primariamente os nervos periféricos. Sabe-se que apesar da redução do número de casos novos, a transmissão continua ativa pela incidência de casos em menores de 15 anos. Assim, torna-se relevante a busca de métodos diagnósticos mais sensíveis e específicos para a detecção de infecção subclínica. Objetivo: verificar através da qPCR, a presença do M. leprae em raspados intradérmicos (RI) de indivíduos atendidos no CREDEN-PES/GV/MG. Método: Realizou-se coletas de amostras de raspado intradérmico (RI) de 411 participantes para determinação do índice baciloscópico (IB), extração e amplificação de DNA do M. leprae. Os participantes foram divididos em dois grupos: GRUPO 1, “Casos notificados”, registrados no SINAN; GRUPO 2, “Indivíduos não notificados”, que apresentavam quadro de suspeição diagnóstica para hanseníase. Do total de 411 amostras coletadas, 158 foram obtidas de casos notificados e 253 de indivíduos não notificados. Resultados: Verificou-se que do total de casos, 58.86% (masculino) e 41.14% (feminino). Entre os indivíduos não notificados, 53,36% (masculino) e 46,64% (feminino). Considerando a faixa etária, ambos os grupos apresentaram idade (40 a 69 anos). Quanto ao IB, 34,18% (casos) e 0% (não notificados) apresentaram IB positivo. Na qPCR, 82,28% dos casos e 47,43% dos indivíduos não notificados testaram positivo, com uma razão de chance de adoecimento de 5,14. Conclusão: É possível inferir, que os indivíduos com suspeição de hanseníase, com a qPCR positiva, podem ser portadores de infecção subclínica e potenciais transmissores do M. leprae para indivíduos mais susceptíveis.
Coronectomia: uma revisão narrativa da literatura
Authors: Ferreira Junior Carlos Laudevir , Vieira Eduardo Vidor , Fernandes Ângela , Araújo Melissa Rodrigues de , Navarro Maria Ângela Naval , Lima Antonio Adilson Soares de
Published: March 2023

A remoção cirúrgica de terceiros molares inferiores impactados cujas raízes dentárias estão próximas ao canal do nervo alveolar inferior (NAI) representa um procedimento de alto risco para o desenvolvimento de lesão nesta estrutura anatômica. A lesão do NAI é uma complicação rara, muitas vezes grave e que pode ocorrer como consequência da extração de terceiros molares inferiores. A sua incidência é viável 0,5% a 8%, mas pode aumentar para 20 a 50% quando as raízes fazem contato com o osso cortical do NAI. A técnica da coronectomia foi proposta como uma alternativa a remoção completa de um terceiro molar inferior impactado localizado próximo ao NAI. A técnica consiste em remover apenas a coroa do dente, deixando a raiz no alvéolo, teoricamente evitará danos diretos ou indiretos ao NAI. Este trabalho propõe realizar uma revisão narrativa da literatura buscando discutir sobre a eficácia da coronectomia em relação à transtornos sensoriais, quando da remoção de terceiros molares inferiores impactados e desfavoravelmente posicionados em relação ao nervo alveolar inferior. As evidências sobre os resultados de longo prazo da coronectomia, permitem afirmar que se trata de um método seguro e eficaz nos casos em que o terceiro molar inferior se encontra em posição de alto risco de complicação envolvendo o NAI.
Abscesso hepático piogênico: relato de caso
Authors: Lins Adolpho Fontes , Carnaúba Aline Tenório Lins , Pombo Raquel Val Quintans da Rocha , Oliveira Kelly Cristhian Lima
Published: March 2023

O abscesso hepático piogênico é causado pelo desenvolvimento de pus intra-hepático secundário a uma reação inflamatória local devido a uma infecção bacteriana. Esta é uma condição grave associada ao aumento da morbidade e mortalidade nas pessoas afetadas. Sendo assim, o presente relato de caso tem como objetivo: descrever uma apresentação grave do abscesso hepático no idoso, mostrando as intercorrências durante o período de internação e como o paciente foi manejado. Assim como, rever a literatura sobre as diferenças na etiopatogenia e as bases do diagnóstico e do tratamento. O idoso do caso relatado apresentou dor abdominal, febre, anorexia e perda de peso, demonstrando um episódio subagudo. A terapia foi realizada levando em consideração a provável etiologia e combinada com exames complementares laboratoriais e de imagem, principalmente a tomografia computadorizada. A antibioticoterapia e a drenagem percutânea guiada por imagem mostrou ser um dos pilares do tratamento.
Will consumers pay more for organic logo: an empirical study of organic products purchasing in Thailand
Authors: Jiumpanyarach Waripas
Published: March 2023

This study aimed to investigate the relationship between the willingness to pay for the quality of agricultural products toward the logo of consumers in different regions of Thailand and explained an opportunity for organic products in future markets. 408 respondents from February – June 2019 were collected based on paper-based questionnaires that focused on consumers’ choices, recognition, and attitudes regarding safety and organic knowledge. Three hypotheses were in this study. A choice experiment logit model was used. The questions included socioeconomic, attitudes, preferences, perception of safety and organic products related to logo. The study showed respondents who understood in the concept of safety and organic agriculture and had information logo standards tended to purchase organic products. The organic logo has impacted the purchasing power of respondents. Consumers were willing to pay more for third-party certified logo products (Organic Thailand and IFOAM) rather than local logos (PGS). Satisfaction with marketing, quality standard, and prices did not increase consumers’ demand while they pay for higher prices based on their interest and understanding. Consumers were willing to trade off between trusted logos and a higher price. The supported knowledge on production and markets from public and private agencies were beneficial along the supply and demand chain and agricultural society. To enlarge the organic product markets in the future, these are not well-researched factors that impact third-party and local logos. There were several studies about the perception levels, interest, understanding, and knowledge of the respondents’ impact on the purchasing power of organic products in Thailand.
Study on farmers' perception on climate change: a systematic literature review
Authors: Kaske Deribe , Kassahun Teshome , Alemu Abera
Published: March 2023

Climate change and its impacts are being felt around the world. Farmer perception tends to influence their coping and adaptation strategies. This review aimed to examine the contributions of studies on farmer perceptions to climate change through a systematically review of the scientific literature. The search strategy was adapted to the Scopus database using the search terms "Farmers’ perception” AND “climate change.” The selection criteria were based on the Preferred Reporting Items for Systematic Review and Meta-analyses approach. The review was conducted based on 48 peer-reviewed articles, selected after evaluating each article against inclusion and exclusion criteria. Key findings from the data showed that participants were aware of the climate's changing in 81.25% of the articles reviewed. The review results also identified limitations highlighting the gaps in the existing literature regarding the aims and scope of the journals and the methods used in the articles.
Traditional knowledge, beliefs and practices on collection of lake flies (chaoborus and chironomus sp.) and their implications on food security
Authors: Kambani Mathews L. , Gor Christopher O. , Ayieko Monica A.
Published: March 2023

Lake Flies are edible insects with the potential of contributing to food security in that they are an alternative protein and micronutrient food source in freshwater lake regions. The main challenge in exploiting the lake flies is the difficulty in the collection. This study was conducted to identify sustainable traditional collection practices and forecasting techniques of lake flies and was implemented in Rusinga and Mfangano Island in Kenya. The ethnographic study employed multiple methods of data collection: focus group discussion (FGD), observations, and interview schedules. 5 (3 female and 2 male) key informants were selected for interview schedules aged above 60 years. 48 (19 female and 29 male) participants took part in FGDs they were divided into 8 sets each containing 6 participants and an age range between 18 to 40 years. Open data kit (ODK) software was used for data collection while analysis was conducted via thematic analysis framework using Nvivo version 10 software. Questions were administered on traditional lake-flies emergence forecasting, collection techniques, and devices. The emergence of lake flies is determined by moon sightings, the presence of strong winds, and the rainy season. Lake flies can be collected: in mid-air flight mode, in bushes along the shore, and during night operations using a light source (bulb, touch). Lake flies are collected using traditional tools: a woven basket with a stick handle, pots, a plastic basin, and a woven basket with a stick attached. Cultural myths associated with lake flies included: marriage partner/business customers’ attraction. Uses include libido enhancement, remedy for sickness, and good fish harvest indicator. In conclusion, lake flies have the potential to contribute to food and nutrition security as affordable and locally available alternative protein and micronutrient sources.
Evaluation between lighting technologies on growing hydroponic lettuce
Authors: Torres Jr. Miguel , Omaye Stanley T.
Published: March 2023

The use of lighting technologies combined with hydroponics has gained increased interest worldwide as a viable and integral horticultural solution to regions with limitations from geography or environmental conditions while offering scalability for rural cities, urban areas, and metropolitans alike. Unrelenting modern uncertainty with climate change, declining water and land supply; urbanization, and not to mention a population soon to exceed well over 8 billion in the coming decades will require innovative interdisciplinary solutions to secure sustainable food systems. In this study, we used a surrogate hydroponic garden to examine the difference in biomass yield from ambient sunlight (control) against supplemental High-Pressure Sodium (HPS) and Light Emitting Diodes (LEDs) lighting. Additionally, we determined the difference in irradiance, illuminance, and luminous intensity between the control and supplemental lighting treatments along with luminous efficacy between the latter. Both experimental groups exhibited higher total biomass of leaves and shoots than the control with measurement of wet and dry weight in grams. The LED group was found to have a significantly higher weight almost twice that of the HPS group. HPS and LEDs had significantly more luminous intensity, illuminance, and irradiance than the control but LEDs significantly outperformed HPS for all parameters including luminous efficacy.
Effectiveness of the Nakuru farmers’ call center in linking farmers to agricultural extension stakeholders in Nakuru county, Kenya
Authors: Mucoki Shelmith W. , Nkurumwa Agnes O. , Maina Stephen W.
Published: March 2023

This paper examined the effectiveness of Nakuru Farmers Call Centre (NFCC) in linking farmers to agricultural extension stakeholders in Nakuru County following reports of delays in responding to farmers’ queries and requests by NFCC, provision of low-quality services, and lack of follow-ups. The descriptive survey research design was adopted during the study. The target population was all the 3,473 farmers in Nakuru County who were registered with NFCC and the 4 center experts. A sample of 4 center experts and 110 farmers selected using census, stratified, proportionate, and simple random sampling techniques were involved in the survey. Data were collected using the farmers’ questionnaire and experts’ interview guide. Data were summarized and described using frequencies, percentages, means, and standard deviations. The findings showed NFCC had linked the majority (80.9%) of the farmers to extension stakeholders. The farmers rated linkages with Government/Public extension service providers (M = 4.15, SD = 1.21), agro-dealers (M = 4.02, SD = 1.25), and agriculture marketing services providers (M = 3.54, SD = 1.50) highly while those to agriculture university scientist (M =2.62, SD = 1.67), agricultural NGO’s (M =2.80, SD = 1.50), and research institutes (M = 2.98, SD = 1.46), were low. The overall success of NFCC in linking farmers to stakeholders was rated at M= 3.40 (SD = 0.50). NFCC was successful in linking farmers with government/public extension services providers agro-dealers and agriculture marketing services providers. However, it was not successful in linking farmers to agriculture university scientists. The number of farmers' call centers (FCC) should be increased and the centers are given adequate facilities and staff.  These resources will enable FCCs to provide quality services to a wider section of farmers, link them to stakeholders promptly and make follow-ups as a way of ensuring that farmers have been assisted, thus enhancing their effectiveness.
The impact of agricultural sector on boosting the Lebanese economy throughout the economic crisis
Authors: Ushakov Denis , Shatila Khodor
Published: March 2023

Every developing country aims to achieve high-income status as a primary objective. To achieve this aim and other vital development objectives like guaranteeing food security and promoting nutrition, agriculture plays a crucial role. Therefore, agricultural transformation must become a reality to eradicate hunger and undernutrition while boosting economic development. Only a few nations have acquired high-income status after starting poor. However, those that accomplished it began with farming and went through an economic transition that boosted growth and eliminate hunger and undernutrition. The research implemented a methodology approach throughout online meetings for any of the interviews. The researcher began the interviews by asking open-ended questions to get to know the interviewees better and to set a casual tone for the conversation. The research sought to use open and probing questions that enable respondents to explain and identify the events or circumstances as they view them. Farmers in Lebanon are fighting to make ends meet as the value of the dollar versus the Lebanese lira continues to climb. This might become worse if Saudi Arabia imposes a ban on agricultural goods. Lebanon's economic crisis has taken a heavy toll on the country's agriculture industry.
Determinants of training needs of the tilapia (Oreochromis sp.) fish farmers: an empirical study from a selected area in Bangladesh
Authors: Uddin Mohammed N. , Ahsan Kabir , Farouque Mohammad G. , Akter Sharmin , Rahman Saifur
Published: March 2023

Capacity building of fish farmers is inevitable for profitable fish farming. This research was undertaken primarily to identify the factors influencing the training requirements of tilapia fish farmers and to assess the level of training required for optimal farm management. Thus, the research was conducted in Phulpur Upazila (sub-district) under the Mymensingh district of Bangladesh. Face-to-face interviews were conducted with 100 randomly selected tilapia fish farmers using a pre-tested questionnaire. The training needs of tilapia fish farmers were measured using a four-point rating scale. The overwhelming majority (99%) of the respondents reported high training needs. Determination of mono-sex tilapia, a non-probiotic and probiotic fish production, and production techniques of mono-sex tilapia were identified as significant areas of training needs. Linear multiple regressions confirmed that level of education, experience in fish farming, training received, extension media contact and social mobility were the statistically significant determinants (P0.05) of the training needs for the tilapia fish farmers. The high cost of fish feed, unavailability of extension service, and high fertilizer costs were identified as the major problems faced by the respondents. Respective authorities, especially the Department of Fisheries (DoF), should emphasize initiating capacity-building programs for the farmers, considering the identified training needs and problems. In addition, providing training, ensuring the availability of credits at low-interest rate, supply inputs for tilapia culture for improving tilapia fish farming could facilitate the farmers.
Biochemical Composition of Different Sex and Body Parts of Blue Crabs (Callinectes sapidus) Caught From the Middle Black Sea Coast
Authors: TUFAN Bekir
Published: March 2023

This study was carried out to determine the nutritional composition of blue crabs (Callinectes sapidus) caught on the Fatsa (Ordu) coasts of the Middle Black Sea of Türkiye. The nutritional value of various edible body parts (carapace, right and left claw, and legs) of the blue crabs were evaluated, and the proximal biochemical compositions of crabs belonging to different sexes were compared. The average protein content in male and female blue crabs was 18.79% and 19.11%, respectively. The highest amount of protein in female crabs was determined in the carapace, while the highest amount in males was determined in the legs. The quantity of fat in male crabs ranged from 0.46 to 0.69%, whereas the amount in female crabs ranged from 0.63 to 0.92%. The mean fat in female crabs was higher than in male crabs (p<0.05). The moisture and ash content in all of the body parts of male and female crabs varied between 78.62-76.73% and 2.29-2.39%, respectively; however, the difference between these values was statistically insignificant. The lowest and highest energy values for 100 g of crab meat were determined to be 78.27 kcal and 88.00 kcal, respectively. This study suggests that the blue crab, with its high protein and low-fat content, may be an alternative nutrient-dense species for the rural population.
ÜNİVERSİTE ÖĞRENCİLERİNİN AKILLI TELEFON BAĞIMLILIK DÜZEYLERİNİN BELİRLİ DEĞİŞKENLERE GÖRE DEĞERLENDİRİLMESİ
Authors: ERZİNCANLI Yıldız , TAŞ Halil Gökhan , AKBULUT Gönül , BULADİ ÇUBUKCU Betül , ULAŞ Sümeyye , BAYRAKCEKEN Esra
Published: March 2023

Bu çalışma, üniversite öğrencilerin akıllı telefon kullanım durumlarını ve bağımlılık düzeylerini belirleyip ilişkili demografik değişkenleri ortaya çıkarmak amacıyla betimsel tarama desenine göre dizayn edilmiştir. Çalışma kapsamında kullanılan veri toplama araçları kişisel bilgi formu ve Akıllı Telefon Bağımlılığı Ölçeğidir. Araştırma kapsamında toplanan verilerin analizi SPSS 25 programı ile yapılmıştır. Araştırmanın sonucunda üniversite öğrencilerinin akıllı telefon bağımlılık düzeyinin orta düzeyde olduğu ve katılımcıların kendilerini bağımlı olarak algıladıkları bulunmuştur (p<0.05). Katılımcıların Akıllı Telefon Bağımlılığı Ölçek puanları ile yaş, gelir düzeyi ve ikamet yeri değişkenlerinin incelenmesi sonucunda aralarında önemli derecede anlamlı bir farklılık olmadığı saptanmıştır (p > 0.05). Katılımcıların akıllı telefon bağımlılık düzeyi ile cinsiyet, telefon kullanım gideri, internet kotası, telefonda geçirilen süre, günlük telefon kullanımı, gün içerisinde kullanım saatleri değişkeni arasında anlamlı bir farklılık olduğu saptanmıştır (p<0.05).
The Changing Landscape of Reporting Health and Environmental Risk Information
Authors: Rooke Martin
Published: March 2023

Since the 1990s, news media has become central to informing the public understanding of healthand environmental risks. News media often ‘amplifies’ risks by drawing upon underlyingsociopolitical narratives to confer an additional sense of danger. A previous study has indicated that,since the 2000s, the British media attempted to improve the standard of science journalism withinrisk reporting. Through interviews with thirty members of the British national daily press, thepresent study investigates what changes to newswork have occurred which seem to have impactedthe quality of science reporting. Using time as a motif to guide analysis, the findings of this studysuggest that the shift to predominantly online reporting across the 2010s was associated with adecline in quality of science journalism. Interviewees reported that the technologies which liberatednews work from temporal demands in the 2000s have now become restrictive. New time pressureshave emerged which were blamed for undermining journalistic standards of information processing.Additionally, interviewees suggested that expanding public time horizons has produced newsaudiences who are seeking information on existential risks, which is being served by conspiracytheorists online. The findings of this study present a clear sociological challenge; how arecontemporary journalists to tackle misinformation within the public debate if they feel constrainedby time restraints to simply reproduce information?
Excipients used for the creation of self-emulsifying drug delivery systems
Authors:   FSBSI V.V. Zakusov Research Institute of Pharmacology, Gavrilov D.I. , Tishkov S.V. ,   FSBSI V.V. Zakusov Research Institute of Pharmacology, Blynskaya E.V. ,   FSBSI V.V. Zakusov Research Institute of Pharmacology, Alekseev K.V. ,   FSBSI V.V. Zakusov Research Institute of Pharmacology, Minaev S.V. ,   FSBSI V.V. Zakusov Research Institute of Pharmacology, Abramova D.M. ,   Peoples' Friendship University of Russia
Published: March 2023

This review provides a classification of excipients that are used in the creation of self-emulsifying drug delivery systems (SEDDS). The criteria for their selection and their characteristics are also described.
Functional dependences between indicators of mechanical properties and tin-aluminum bronze chemical composition
Authors: Kimstach T.V. , Uzlov K.I. , Repiakh S.I. , Solonenko L.I. , Osipenko I.O.
Published: March 2023

Problem statement. Statistically significant relationships establishing between cast tin-aluminum bronze properties, as well as between bronze properties and its chemical composition will predict the level of its mechanical properties when poured into dry sand-sodium-silicate mold. Purpose. Functional relationships determination between mechanical properties of tin-aluminum bronze with tin and aluminum content of up to 6% each. Material and methods. Alloys for investigation have been prepared by melting of technical purity primary charge materials in crucible induction furnace using graphite crucible and charcoal as coating material. Studied alloys mechanical proper-ties have been calculated based on experimental samples tests results during their static expansion and impact bending at room temperature in accordance with actual stand-ards. Alloys chemical composition control has been carried out using precision analyzer EXPERT 4L on samples cut from club-shaped samples. Relationships between mechani-cal properties indicators, as well as mechanical properties and alloys chemical compo-sition have been built using EXEL computer program. Results and discussion. According to Cu-Sn-Al alloys examination results, functional dependences between mechanical properties and Sn and Al content from 1 to 6% by weight of each have been established. This makes it possible to predict mechanical properties level according to chemical composition of such bronze during casting. Conclusions. For the first time, relationships between cast tin-aluminum bronze mechanical properties have been established. This is at the stage of Cu-Sn-Al system bronze designing, with tin and aluminum up to 6% each content, allows predicting its mechanical properties level when pouring bronze in dry sand-sodium-silicate mold.
ANALYSIS OF METHODOLOGIES FOR CARBON STOCK ESTIMATION IN FORESTS
Authors: Kavats O.O. , Khramov D.A. , Sergieieva K.L. , Vasyliev V.V.
Published: March 2023

Current approaches to carbon stock estimation in forest ecosystems are discussed. Datasets containing biomass and carbon stock estimates that can be used for training/validation in machine learning are described. Examples of applying the remote approach to assessing forest biomass over large areas are analyzed. To estimate the forest carbon stocks in Ukraine, the most promising is the remote approach, which combines ground-based and satellite measurements for forest classification and statistical modeling of carbon stocks. For training and validation of machine learning algorithms, it is proposed to use the GEDI Biomass Map covering most of the territory of Ukraine — from the southern borders to the latitude of Chernihiv in the north. A prototype of forest biomass estimating product in Ukraine can be based on publicly available MODIS NBAR data, SRTM DEM, ECMWF climate data and use the Random Forest machine learning method.
On the question of determining the quantity of energy necessary for the disintegra-tion of rocks to a certain size
Authors: Malich M.H. , Kress D.V. , Rizo Z.M.
Published: March 2023

An analysis of the existing classical theories of determining the amount of energy re-quired for the disintegration of solid bodies is carried out. The classical energy hypothe-ses of the destruction of Rittinger, Kick-Kirpychev and Bond can be combined by the formula of the so-called generalizing hypothesis , where E1 is the specific energy transmitted per unit volume of the body , which is collapsing. It is necessary to increase the energy of the newly created surface; k - proportionality factor; x - average grain diameter; f(x) is an exponent that depends on the size of the particles. The geo-metric interpretation of the generalizing hypothesis and theoretical and empirical equa-tions of Rittinger, Kick, Kirpychov, Bond, Svensson, Holmes and other authors is shown and it is argued that they complement each other for different degrees of fragmentation. The thermodynamic theory of L. Jingezian and the theory of A. Andreazen are also ana-lyzed. It was concluded that the presented crushing hypotheses are valid for simplified models of destruction based on the geometric similarity of the particles that are de-stroyed and the products of destruction and their physical identity, in the absence of de-fects in the structure of bodies, therefore the need to create a generalized and reliable mathematical model that reveals the main regularities of these processes taking into account the share of internal and especially external friction. The authors, under the guidance of Professor Vasiliev L.M. a new theory of local destruction of rock with symmetric and asymmetric distribution of contact tangential stresses has been developed, which theoretically provides a reduction in the specific en-ergy of destruction by 40-45 times, which makes it possible to search for new ways of controlling the disintegration process with the lowest energy consumption.
Design of an architecture for storing a time connected model of a digital twin
Authors: Zgurovsky Ya.Y. , Sulema E.S. , Sayapina I.O.
Published: March 2023

Recently, in connection with the development of information technology, digital twin technology has become widespread, which allows replacing physical and analog resources with digital ones. The digital twin is also a relevant and effective method of real-time interaction. However, with a wealth of real-time data and information from the digital twin, it is difficult to present them intuitively to users and operators. A digital twin for the study of an arbitrary object can formally be represented as mathematical abstractions designed for efficient processing of temporal multimodal da-ta of the object under study. Based on the above abstractions and their application for the formal specification of the digital twin, the so-called multiimage is built, which ac-tually provides a formal description of the sequences of multimodal data about the ob-ject under study, obtained taking into account time as a result of measurement, genera-tion and other related data acquisition operations. As a result of the study, a sequence of discrete states of the object under study is formed, each of which can be characterized by a set of temporal multimodal data associated with a specific moment in time, which actually serves as a temporal key for a certain state of the object. The purpose of the study is to design the architecture of a software system for stor-ing and then reproducing a temporal connected model using a database designed to store time series data. TimescaleDB, a relational database for time series data, is pro-posed as the main data storage engine. The main challenges for a database that must process a large amount of temporary data is its scalability - to process and store a large amount of data without performance degradation. The proposed method for building a temporal connected model of a digital twin based on TimescaleDB using the concept of hypertables will achieve efficient use of re-sources by parallelizing the load when searching for data, and a three-level architec-ture designed to distribute the responsibilities of a software system can greatly simplify the implementation and subsequent processing of a temporal model of a digital twin.
DATABASE FOR NUMERICAL SIMULATION OF GAS FLOWS IN A GAS JET GRINDER
Authors: Pryadko N. , Muzyka L. , Pryadko O.
Published: March 2023

The process of material jet grinding is analyzed from the point of view of the granulometric material composition changing in the main elements of the grinding plant. A database of dependencies connecting the technological parameters of the process and the acoustic sig-nal characteristics of the mill operating zones has been created. The advantage of the ap-proach to building mathematical models and creating an automatic control system based on the developed database is the ability to accurately describe most of the factors affecting the grinding efficiency, the possibility of describing with the necessary details for specific mate-rial grinding and obtaining the required size of the ready product. The use of connections between acoustic signals and technological parameters makes it possible to take into ac-count the patterns of changes in the material particle size distribution during the passage of the flow in the grinding plant channels and respond to changes in the product quality or the grinding mode on-line, without wasting time on transport delays.
Experimental modeling mechanical qualities of heatcover screens
Authors: Yasev A.H.
Published: March 2023

Basic physical and mechanical properties of heatcover composition material that is used for making of protective screens are experimentally investigated. For this purpose on the example of flowed plastic STEF executed (with the use of traditional charts) research at small (less than 1 m/s) and high (more than 3 m/s) rate-of-change of ladening. At small speeds of ladening durability of material was investigated at superficial deformation, tension, bend and change. At high speeds work of destruction and shock viscidity was determined. Organization and realization of experiments were done according to rules of planning experiments. All investigations were made with the using kinds of experimental equipment which had according certifications of control their quality and accuracy. Obtained results were treated by methods of mathematical statistics and researches of their dispersions. The results of experimental researches drawn on at the decision of concrete design-engineering tasks, in particular, at development of equipment and choice of the modes of crushing of composition materials during their utilization (although, undoubtedly, the obtained data have more wide value). For example, data of intruding conical elements in material were used for selecting optimal angles for working elements of equipment. Correlations between power parameters of intruding process were used for selecting power parameters of equipment for crushing of composition materials. Equipment and technology for crushing of composition materials during their utilization, which are designed on the base of these investigations, have new useful technical and technological specialties, that is why, authors obtained document of intellectual property on this object.
Joint Costs: Evaluation Problems and Solutions
Authors: Silvia Avi Maria
Published: March 2023

Joint production is a particular type of production process that has as its output a plurality of goods that cannot separate. The production of one good also implies the production of the other goods output from the process. The joint production type poses two major valuation problems: the determination of the cost of the products obtained from joint production and the valuation of the inventories of these goods. The difficulties arise primarily because it is impossible to objectively allocate the common costs of the production process to the various products obtained from joint production. It will address these issues by analysing the hypothesis of joint costs that may occur following a block sale of tangible fixed assets at a lump sum price. When this hypothesis occurs, the problem arises of identifying the value of the individual assets constituting the block of fixed assets sold. It will also address this issue in the following pages.
Financial Literacy and How it and Affects an Individual’s Financial Independence
Authors: Vyas Atharv , Ramakanth H , Kaur Jaspreet
Published: March 2023

Students are in an important transition period from financially depending on their parents to becoming financially independent. The same went with the Employees(Teachers, HR Managers ,etc) but now they have a source of income and are solely dependent on themselves. The purpose of this study was to identify an Individual’s current financial knowledge, their interest in knowing and learning more and to finally know if financial literacy really affects an individual’s financial independence among Students and Employees. In today’s world, in order to survive one must have a proper plan about finance and how they can achieve financial independence, so we decided to research about how much knowledge the working employees and students have in order to find out if the financial literacy really have an effect on Financial Independence. We got most of the responses from students followed by employees and 52.9% were male and 47.1% were females who were a part of our research data. And the data collected shows that Financial Literacy does plays a very important role in individual’s life and his/her desire to achieve Financial Independence.
Pengembangan e-LKPD Berbasis Problem Based Learning (PBL) pada Materi Reaksi Redoks
Authors: Nurmasita Nurmasita , Enawaty Eny , Lestari Ira , Hairida Hairida , Erlina Erlina
Published: March 2023

Penelitian ini bertujuan untuk menghasilkan produk e-LKPD berbasis Problem Based Learning yang layak digunakan serta menunjukkan respon guru dan peserta didik terhadap produk yang dikembangkan. Penelitian ini merupakan jenis penelitian pengembangan atau Research and Development (R&D) dengan model pengembangan ADDIE yang dibatasi sampai tahap development. Subjek penelitian ini yaitu e-LKPD berbasis Problem Based Learning pada materi reaksi redoks yang diujikan kepada 2 guru kimia dan 48 peserta didik kelas X IPA SMA Negeri 9 Pontianak. Lembar penilaian kelayakan, angket respon guru dan peserta didik digunakan sebagai alat pengumpul data. Hasil dari penilaian kelayakan materi, kegrafikan dan kebahasaan secara berturut-turut adalah 94,1%, 95,4% dan 90,8% termasuk kriteria sangat layak. Hasil respon guru dinyatakan bahwa e-LKPD termasuk kriteria sangat baik dengan persentase rata-rata 87,8%. Hasil respon peserta didik uji perseorangan 74,7% kriteria baik, uji kelompok kecil 76,5% kriteria baik dan uji lapangan 83,4% termasuk kriteria sangat baik. Berdasarkan data hasil analisis dapat disimpulkan bahwa e-LKPD berbasis Problem Based Laerning dapat diterapkan dalam pembelajaran kimia, khususnya pada materi reaksi redoks.
Analisis Keterampilan Komunikasi dan Kolaborasi Siswa Introvert dengan Pendekatan Culturally Responsive Teaching
Authors: Taher Tamrin
Published: March 2023

Pembelajaran yang berorientasi untuk mencapai Kriteria Ketuntasan Minimal (KKM) mengakibatkan perkembangan keterampilan abad 21 siswa seperti komunikasi dan kolaborasi sering terabaikan, terutama bagi siswa yang berkepribadian introvert. Keterampilan tersebut perlu dikembangkan terutama bagi siswa introvert karena mereka mengalami kesulitan dan membutuhkan waktu untuk bekerja sama atau mengemukakan pendapat. Penelitian ini bertujuan untuk menganalisis keterampilan komunikasi dan kolaborasi siswa introvert melalui Pendekatan Culturally Responsive Teachng. Penelitian dilaksanakan di SMA Negeri 5 Kota Tidore Maluku Utara tahun pelajaran 2020/2021. Subyek penelitian adalah siswa kelas XI IPA yang berkeperibadian introvert. Penelitian ini menggunakan metode kualitatif dengan pendekatan interpretatif. Penentuan subjek penelitian menggunakan purposive sampling melalui tes Eysenck Personality Inventory (EPI), sedangkan teknik pengumpulan data menggunakan observasi, reflektif jurnal, dokumentasi dan wawancara. Hasil penelitian menunjukkan bahwa keterampilan siswa introvert berkembang dalam berkolaborasi dengan teman-temannya. Intensitas komunikasi mereka juga mengalami peningkatan. Penerapan pendekatan Culturally Responsive Teaching menjadikan siswa introvert memiliki motivasi, keberanian, dan percaya diri untuk mengemukakan pendapat baik kepada teman maupun guru serta mampu bekerja sama dengan siswa lain dalam kelompoknya.
Adaptasi Alat Ukur Professional Quality of Life pada Psikolog Klinis di Fasilitas Kesehatan
Authors: Nabila Ghassani Putri  , Purba Fredrick Dermawan , Hanami Yuliana
Published: March 2023

Professional Quality of Life (PROQOL) is the quality one feels in relation to their work as a helper. Both the positive and negative aspects of doing the job influence ones professional quality of life. People who work in helping professions may respond to individual, community, national, and even international crises. PROQOL-V has been widely researched in Indonesia despite the limitation of its measurement tool and its usage on clinical psychologist subjects. Therefore, it is deemed necessary to adapt PROQOL measurement as a research tool for clinical psychologist in Indonesia. This study aims to adapt the Indonesian version of the PROQOL-V measurement by ensuring that the instrument has good measurements characteristics, namely validity and reliability. This study uses quantitative research. The instrument PROQOL-V consisting of 30 items that was administered to 100 professional clinical psychologist. The evidence of validity was acquired from expert judgment when designing the instrument and Pearson correlation.The reliability was tested using Cronbsch's Alpha coefficient (α). The item analysis found that the Pearson correlation values ranged from 0.214 to 0.718 with r table pearson product moment 0.195, and reliability testing resulted a value of α = 0.692. It can be concluded that the Indonesian version of the PROQOL-V instrument usage on clinical psychologist subjects is valid and reliable.
Prevalence of dental calculus in a young adult population in a suburban community of the city of San Francisco de Campeche 2021
Authors: ROSADO-VILA Graciella , ZAPATA-MAY Rafael , OROZCO-RODRIGUEZ Rubén , VIDAL-PAREDES Jorge
Published: March 2023

Good oral health goes hand in hand with good dental hygiene, this guarantees well-being in people. Unfortunately, people do not have good dental hygiene due to various factors, one of them is personal economy. According to the study carried out by the Key-Stone Consultant under the title, "Patients in the dental sector", 21% of patients admit not going to a dental clinic, despite having some oral problem present, due to economic difficulties, lack of time, lack of importance given. This generates an accumulation of microorganisms in the oral cavity generating a bacterial plaque giving rise to dental calculus or dental tartar and this causes endless oral problems such as lack of dental aesthetics. This research work studies dental calculus as well as the relationship of associated factors for this condition to be generated. This is achieved from the exhaustive review of scientific articles concerning the oral health problem, analyzing the prevalence of dental calculus in young -adults in the suburban neighborhood of the city of San Francisco de Campeche during the year 2021 is the main objective. In interviews conducted with young patients, the analysis showed that of 20 people who were interviewed, 14 brush only twice a day and therefore there is a visualization of the presence of dental calculus presenting other diseases. 50% of people have economic problems which limit their ability to go to the dentist. The lack of time to do an adequate dental cleaning is also a factor that was presented in the suburban area since 70% admitted to having a lack of time. Concerning visits to the dentist, the analysis resulted in 8 people never going to the dentist and only one person going 3 times for braces. In this project, dental calculus is a factor that causes multiple problems in the oral cavity that are associated with the lack of good responsible habits with the mouth. The same dental calculus causes the loss of teeth. It is extremely relevant to promote dental education in young people as in adults with the purpose of raising awareness and changing the attitude of the most vulnerable population of these suburban areas of the city of Campeche. The implementation of oral health programs is necessary in order to improve them.
Calculation of optimal environmental indices, to preserve/conserve melipona bees in the State of Puebla
Authors: SANTOS-OSORIO Arturo , SOTO-LEYVA Yasmin , BONES-MARTÍNEZ Rosalía
Published: March 2023

The objective of this investigation is to verify that the environmental factors of temperature (°C) and wind (m/s) in the meliponaria of the State of Puebla are optimal for the reproduction of the Melipona Bee. The applied methodology contemplates 3 phases: 1) Analysis of environmental conditions of the region, 2) Selection of measurement devices: Use of two types of thermometers, the Steren Thermo-Hygrometer thermometer assigned for temperature measurements (°C), and the UA-965 Thermo-Anemometer thermometer to quantify temperature and wind speed, 3) Statistical studies of environmental factors of temperature and wind (random sampling) . The contribution is exposed socially, economically and culturally, with respect to the social environment, the optimal levels of temperature and wind are indicated, this action will benefit 70% of the meliponiculturists with the increase in the levels of bee reproduction, this increase will cause greater quantities of products (honey, propolis, wax) which, when sold, will attract greater economic uptake for meliponiculturists. Finally, the cultural contribution focuses on the conservation and preservation of the region's native bees, fostering a reproduction system with adequate environmental conditions.
Differential genes of Arabidopsis thaliana in response to Ustilago maydis infection
Authors: PLANCARTE-DE LA TORRE Marco M. , CASARRUBIAS-CASTILLO Kena , ROBLES-MURGUIA Celia , MÉNDEZ-MORÁN Lucila
Published: March 2023

Arabidopsis thaliana - Ustilago maydis integrate the pathosystem used to study the plant-pathogen interaction, in order to know the molecular mechanisms involved in the response of the plant to the pathogenesis of U. maydis, a differential expression bank was constructed 72 hours after inoculation, using the subtractive hybridization technique. The fragments obtained were sequenced and subjected to bioinformatic analysis which allowed us to locate 36 different sequences with homology to Arabidopsis thaliana in response to U. maydis infection, several of them with roles in photosynthesis, reactive oxygen species, defense, and signaling among others, involved either directly or indirectly in the early response to infection. The results of this work are focused on understanding the plant-pathogen interaction and can be extrapolated to other model plants of agronomic importance.
Prevalence of drug-resistant uropathogenic bacteria in canines in the city of Merida, Yucatan
Authors: BASTO-MIJANGOS Harold Noe , DUARTE-MENDOZA Grisell Anahí , PÉREZ-BRETÓN Susana A. , KIM-MOO Manuel J.
Published: March 2023

Antibiotic treatment is key to the improvement of canine patients with urinary tract infections; however, the irrational use of antimicrobials has led to the emergence of resistance mechanisms in uropathogenic bacteria. The objective of the study was to identify the bacteria present in urine cultures from canines in the state of Yucatán, determine their sensitivity to antibiotics, the prevalence of resistance to methicillin (MR) and production of extended-spectrum beta-lactamase (ESBL). Identification and sensitivity to antibiotics were performed using the MicroScan commercial kit and the Kirby-Bauer technique. MR was determined by sensitivity to oxacillin/cefoxitin and ESBL production through synergy techniques with beta-lactamase inhibitors. The most frequently isolated bacteria was Proteus mirabilis and the antibiotic with the highest percentage of resistant strains was norfloxacin; 30.2% of the Enterobacterales strains manifested ESBL production and 39.4% of the Staphylococcus spp. showed MR. The development of drug resistance is an important problem, only the knowledge about the prevalence of these uropathogenic bacteria and their drug-resistant strains in our state will allow us to propose effective treatment protocols.