bluuebunny/crossref_metadata_2025 huggingface dataset:
The analysis of influence of uncertainty factors on mathematical modeling of the process of reverse expansion of ammonia in low-speed reciprocating compressor stage. Part 2
Authors:   Omsk State Technical University, Sadvakasov D. Kh. , Chernov G. I. ,   Omsk State Technical University, Yusha V. L. ,   Omsk State Technical University
Published: August 2022

The paper presents the analysis of influence of the method of calculating the heat transfer coefficient on mathematical modeling of the process of reverse expansion of ammonia in the working chamber of the reciprocating compressor stage (in the area of wet steam). Alternative variants of film and drip schematization of the heat exchange process are considered. The mathematical model is based on the equations of the first law of thermodynamics for a body of variable mass, the equation of state of a real gas, the Clapeyron–Clausius and Newton–Richman equations. Based on the results of the computational and parametric analysis, the applicability of known methods for calculating the heat transfer coefficient to the object under consideration is evaluated.
Phylogenetic analysis of black piper (Piper spp.) population collected in different locations of Viet Nam based on the ITSU1-4 gene region
Authors: Sonexay Rasphone , Long Thanh Dang , Nhi Thi Hoang Ho , Co Quang Nguyen , Hai Thi Hong Truong
Published: August 2022

The internal transcribed spacer (ITS) of nuclear ribosomal DNA is one of the most commonly used DNA markers in plant phylogenetic and DNA barcoding analyses and it has been recommended as a core plant DNA barcode. To compare and find out the genetic diversity difference, some individuals Peper were collected in different localities in Vietnam when using the ITS of nuclear ribosomal DNA. The ITS gene region from the nuclear genomes was tested for suitability as DNA barcoding regions of thirty-nine Peper individuals. Universal primers were used and sequenced products were analyzed using the Maximum Likelihood method and Tamura-Nei model in the MEGA X program. We did not observe high variability in intraspecific distance within the ITSu1-4 gene region between individuals ranging from 0.000 to 0.155. The size of the gene region has fluctuated from 667 to 685 bp between different individuals with the percentage (G + C) contained in the ITSu1-4 gene region which ranged from 54.776% to 60.805%, mean = 60.174%. The values of Fu’s Fs, D, Fu and Li’s D* and F* were negative as well (Fs = -0.209, D = -1.824; p < 0.05, D* = -1.205; not significant, p > 0.10 and F* = -1.699; not significant, 0.10 > p > 0.05) indicating an excess of recently derived haplotypes and suggesting that either population expansion or background selection has occurred. The value of Strobeck’s S is high (S = 0.684). The results of evolutionary relationships of taxa obtained 3 groups with the highest value of Fst are shown in the pairs of groups II and III (Fst = 0.151) and the lowest is in groups II and I (Fst = 0.015). All of the new sequences have been deposited in GeneBank under the following accession numbers MZ636718 to MZ636756. This database is an important resource for researchers working on Species of Peper in Vietnam and also provides a tool to create ITSu1-4 databases for any given taxonomy.
The Potential of Nitrogen Applied Rapeseed (Brassica napus L) in Remediation of Cadmium Polluted Soil
Authors: Gulmezoglu N. , Daghan H.
Published: August 2022

This study aims to determine the Cd accumulation levels of rapeseed (Brassica napus L.) based on nitrogen (N) (0, 100, 200 and 400 mg kg-1) and Cd (0, 1.5, 3 and 6 mg kg-1) applications to the soil on pot trials conducted under controlled environmental conditions. The highest chlorophyll content was obtained at 400 mg N kg-1 without Cd. The highest dry weight amount in rapeseed was obtained with the application of 100 mg N kg-1 × 1.5 mg Cd kg-1, however, the highest rates of both N and Cd resulted in the lowest dry weight. In 400 mg N kg-1 × 6 mg Cd kg-1 (131 mg Cd kg-1) and 200 mg N kg-1 × 6 mg Cd kg-1 (113.80 mg Cd kg-1) applications, Cd concentration of the rapeseed was determined to be higher than critical Cd hyperaccumulation level. The capacity of Cd uptake and accumulation in rapeseed shoots were enhanced with N applications, thus promoting the phytoextraction of Cd from Cd-contaminated soils. Cadmium rates did not affect Fe, Cu, Mn and Zn uptake levels when N was not applied. However, Cd ratios increased the microelement uptake levels, except Zn, when applied to 100 and 200 N kg-1 ratios as compared to control plants. Eventually, increase in Cd uptake of plants with N fertilization is possible; however, excessive N rates may not result in an increase in rapeseed biomass.
Phytochemical, antimicrobial, antioxidant, antigenotoxic and antimutagenic efficacy of Catharanthus roseus leaves by different extracts
Authors: Sharma Amit , Dhanda Anita , Bhardwaj Pushpender , Yadav Anita , Aggarwal Neeraj K.
Published: August 2022

Plant secondary metabolites are high in bioactive chemicals and are employed in the pharmaceutical industry for the manufacture of nutrient-rich food. These bioactive chemicals are administered in both traditional and contemporary ways to cure various ailments and enhance people's health. Present study was undertaken the phytochemical composition and biological potential (antimicrobial, antioxidant, antigenotoxic and antimutagenic) of various extracts obtained by Soxhlet extraction technique from leaves of C. roseus were investigated. Different extracts were accessed for their yield percentage, total polyphenol content (TPC), total flavonoid content (TFC), antioxidant potential (DPPH - 1,1-diphenyl-2-picrylhydrazyl), antimicrobial activity, antigenotoxic and antimutagenic potential. Further, acetone extract was also subjected to gas chromatography - mass spectrometry (GC–MS) analysis in order to assess the composition of various phytoconstituents. The identified major compounds included 9, 12-octadecasienoic acid (19.5%) and n-hexadecanoic acid (16.5%). Acetone extract showed the best activity towards biological potential (antimicrobial, antioxidant, antigenotoxic and antimutagenic). According to the pharmacological properties of these bioactive components, the plant can be utilized as a crude drug or to build a novel medication and these bioactive chemicals are suggested based on known pharmacological literature.
Assessment of Simple Methods to preserve Pure Cultures of Aspergillus Versicolor and Aspergillus Niger
Authors: Merheb Maxime , Matar Rachel , Marton John , Hodeify Rawad , Vazhappilly Cijo
Published: August 2022

The preservation of pure fungal cultures is considered as an important part of applied and industrial microbiology applications. In this study, we are focusing on filamentous fungi preservation as these species are very useful in industrial applications such as wastewater treatment, biofuel production etc. We are presenting an evaluation of three methods to maintain and preserve filamentous fungi: refrigeration on filter paper, refrigeration with glycerol and cryopreservation with DMSO. The three methods were tested on the pure cultures of Aspergillus versicolor and Aspergillus niger. The three methods were successful where the viability measured by colony forming unit CFU counts was confirmed. We suggest that for the short-term preservation of filamentous fungi, the filter paper method could be preferred as it is very simple, quick and effective.
FTIR study on the cellular chemical composition of Allium cepa L. seedlings under salt stress
Authors: Riazunnisa K. , Sai Sudha G. , Krishna Rao K.S.V. , Chandrasekhar T.
Published: August 2022

The current study is to investigate the effects of salinity on cellular chemical composition in four cultivars of onion seedlings (Agrifound rose, Bellary, Prema-178 and Nasik red) at different time intervals through the Fourier-transform infrared (FTIR) spectroscopy. Onion seedlings were treated with 0, 50 and 150 mM NaCl for 3 h and 48 h intervals and dried samples were used for analysing the biochemical changes using FTIR spectroscopy. The results provided insights at 50 and 150 mM NaCl and clear differences were noticed in profiles related to lipids, proteins and carbohydrate functional groups compared with untreated control. In principal component analysis (PCA), the first two principal components (PC1 and PC2) of four onion cultivars and salt treatments explained 95.7 % of total variations whereas 71.8 % of total variations were accounted with FTIR spectra of 4000-1000 cm-1 region. Multiple linear regression (MLR) analysis exhibited significant correlation values of R2 > 0.9. At both the intervals of salt treatment, the Bellary cultivar showed good responses, thereafter Prema-178 cultivar at each concentration when compared with control. In conclusion, FTIR spectroscopy can elucidate early salt stress-induced chemical changes in various compounds as well as the salt adaptive process in onion metabolism.
Production of microgreens in different soil conditions and their nutraceutical analysis
Authors: Partha Pratim Kalita , Sutila Barchung
Published: August 2022

In the recent years, the consumption of microgreens has increased among the people due to their high nutritional value and thus there is a growing demand of it. The yield and quality of microgreens depend on different factors like soil condition, temperature etc. Microgreens can be grown in greenhouses, soil or soilless, organic or non-organic, solid or hydroponic. The present study was conducted on growing of two different microgreens samples in different soil conditions and to estimate its total protein and carbohydrate content on it. Three different soil samples were collected from different locations of Panikhaiti, Assam, India. Total two microgreen samples were grown with and without vermicompost with all the three soil samples. It has been observed that the growth of Fenugreek microgreen is faster than that of red spinach microgreen. The soil with vermicompost has grown microgreen in a faster, healthier and taller manner than that of untreated soil. Total protein content of fenugreek is found to be higher while carbohydrate content is higher is red spinach. The data generated in this research may be used as region based reference for consumer choice as well as dieticians recommendation.
Isolation, characterization and evaluation of plant growth promoting activities of bacterial endophytes of tea (Camellia sinensis (L.) O. Kuntze)
Authors: Nath Ratul , Tamuly Dulumoni , Sharma Gauri Dutta , Barooah Madhumita
Published: August 2022

In the present study, we are emphasising on isolation, characterization and in vitro evaluation of mineral solubilization and plant growth promoting (PGP) hormone production activities of endophytic bacterial isolates of tea (Camellia sinensis L. (O) Kuntze) root, stem and leaves collected from different tea gardens of upper Assam, India. During the study, it was observed that endophytic bacterial population was highest in roots (ranged between 6.3 x 103-10.3 x 103cfu/ml) followed by stem (ranged between 5.6 x 102-9.86 x 102cfu/ml) and leaves (ranged between 4.2 x 102-8.6 x 102cfu/ml). Pseudomonas sp. was found to be highest IAA (16.75 ± 0.04 μg/ml) and GA3 producer. Bacillus cereus was found to be highest (174.33 ± 2.0 μg/ml) phosphate solubilizer and Acinetobacter sp. (3.06 ± 0.1) was found to be the most efficient potassium solubilizer among the 40 endophytic bacterial isolates isolated from tea bushes. After in vitro screening of endophytic bacterial isolates for their PGP activities, Bacillus cereus, Bacillus flexus RN 11, Pseudomonas sp. and Pseudomonas rhodesiae were applied in the pot culture experiment to observe their activity in natural condition and were found to be significant in promoting root, stem and leaf growth.
Antimicrobial activity of chitosan/ZnO blended coating on silk fabric against Escherichia coli
Authors: Abarna B. , Preethi T. , Rajarajeswari G.R.
Published: August 2022

Antimicrobial coated fabrics have a wide spectrum of use in grooming, biomedical and water purification applications. In this work, we report the antimicrobial property of a nano blend prepared from crab-shell based chitosan and nano ZnO and dip-coated on a silk fabric sample. All the synthesized materials were subjected to FT-IR, XRD and TGA studies to assess the functionality, crystallinity and thermal stability. Deacetylation of chitin to chitosan was revealed by the decrease in the intensity of the acetyl group peak at 1641 cm-1 in chitosan. The crystallite size of the synthesized nano ZnO was found be 15 nm from XRD analysis. Appearance of the characteristics peaks of chitosan (9.58°, 19.98°) and ZnO (31.86°, 34.71°, 36.44°, 56.65°, 62.99° and 68.02°) together in XRD pattern of the blended sample confirmed the blending of chitosan and nano ZnO. The deposition of the nanoblend on the coated silk fabrics was shown by SEM analysis. An inhibition zone of 3mm around the nanoblend coated silk fabric sample against E. coli bacteria clearly indicated that synthesized chitosan/ZnO nanoblend possessed good antibacterial activity.
Analysis of Heavy metals and Physico-Chemical Properties of Sesamum indicum Seed Oil from Arid Zone of Rajasthan
Authors: Ram Prakash , Arora Arun Kumar
Published: August 2022

In the current study, we reported the concentration of heavy metals (ppm), physicochemical properties and fatty acid composition of Sesamum indicum seed oil from arid zone in Rajasthan. MP-AES is used for the analysis of heavy metals from the seed oil of Sesamum indicum. The heavy metals are found in seed oil in following order: Zn (7.92), Fe (1.14), Mn (0.74), Pb (0.07), Ni (0.05) and Cr (0.01) in ppm respectively. Sesamum indicum oil was tested for its physicochemical properties. The proximate analysis revealed 46.00% oil content. HPLC was used to determine the fatty acid composition of the oil sample. Saturated, monounsaturated and polyunsaturated fatty acids were recorded for 15.52%, 42.86% and 41.32% of the total amount of fatty acids respectively. Linoleic acid (42.38%) was the most abundant fatty acid followed by oleic acid (41.20%) and palmitic acid (9.90%). Stearic acid (5.62%), linolenic acid (0.48%) and palmitoleic acid (0.12%) were present in small amounts.
Water Quality Index and Heavy Metal Pollution Index of Groundwater Quality: A case Study in Visakhapatnam District, AP.
Authors: Amala O. , Vara Lakshmi K. , Dadhich Anima Sunil , Ramesh M.
Published: August 2022

The main objective of the present study was to assess the groundwater quality of selected Mandals in Visakhapatnam district Andhra Pradesh. Fifty samples were collected from hand pumps of various Mandals. Water Quality Index (WQI) and Heavy Metal Pollution Index (HPI) along with Metal Quality Index (MQI) were determined. Physicochemical parameters such as pH, Electrical Conductivity (EC), Total Hardness (TH) and Total Dissolved Solids (TDS) were measured by various standard techniques. Calcium (Ca+2), Magnesium (Mg+2), Chloride (Cl-), Nitrate (NO3 -) and Sulfate (SO4 -2) were analyzed by 930 Compact Ion Chromatograph Flex. Heavy metals such as Lead (Pb), Zinc (Zn), Chromium (Cr), Aluminum (Al), Copper (Cu), Nickel (Ni), Manganese (Mn) and Cadmium (Cd) were analyzed by using 4200 Microwave Plasma – Atomic Emission Spectrometer (MP-AES). Iron (Fe) was analyzed by Cary 60 UV-Visible Spectrophotometric method. The correlation coefficient (R2) of the heavy metals lies between 0.99 to 0.98. The compliance of BIS 10500:2012 for the heavy metal concentration in drinking water was verified. From the current study, it was found that EC, TDS, TH and heavy metals such as Aluminum (Al) and Lead (Pb) exceeded the allowed limits as per BIS 10500:2012 revision. The highest values of HPI and WQI from the fifty groundwater samples are 407.97 and 189.79. The highest value of MQI is 3.36 respectively. An attempt has also been made to draw spatial distribution maps for heavy metals having higher concentrations in the study area.
Fatty acid capped, metal oxo clusters as smallest conceivable nanocrystal prototypes
Authors: Van den Enyden Dietger , Pokratath Rohan , Pulparayil Mathew Jikson , Goossens Eline , De Buysser Klaartje , De Roo Jonathan
Published: August 2022

Metal oxo clusters of the type \ce{M6O4(OH)4(RCOO)12} (M = Zr of Hf) are valuable building blocks for material science. Here, we develop them as smallest conceivable nanocrystal prototypes. We synthesize a series of zirconium and hafnium oxo clusters with ligands that are typically used to stabilize oxide nanocrystals (fatty acids with long and/or branched chains). In contrast to previously reported discrete oxo clusters with short/rigid carboxylates (e.g., acetate, benzoate), the fatty acid capped oxo clusters have a high solubility but do not crystallize, precluding traditional purification and single-crystal XRD analysis of clusters. We thus develop alternative purification strategies and structural analysis tools. We use X-ray total scattering and Pair Distribution Function (PDF) analysis as our main tool to elucidate the structure of the cluster core. In contrast to traditional PDF analysis of larger clusters and nanocrystals, we show that the structure models need to include the carboxylate binding groups to obtain excellent refinements. Our methodology is able to pick up the correct structure from a series of possible structure models (\textbf{Zr4}, \textbf{Zr6}, \textbf{Zr12}). Further supporting evidence for the cluster composition (including their ligand shell) is provided by nuclear magnetic resonance (NMR), infrared spectroscopy (FTIR), thermogravimetry analysis (TGA) and mass spectrometry (MS). We find that the ligands have multiple binding modes and that hydrogen bonded carboxylic acid is an intrinsic part of the oxo cluster. Using our analytical tools, we elucidate the conversion from \textbf{Zr6} monomer to \textbf{Zr12} dimer (and vice versa), induced by carboxylate ligand exchange. Finally, we compared the catalytic performance of \textbf{Zr12}-oleate clusters with oleate capped, 3-5 nm zirconium oxide nanocrystals in the esterification of oleic acid with ethanol. The oxo clusters are much more catalytically active, due to their higher surface area. Since the oxo clusters are the limit of downscaling oxide nanocrystals, we thus propose them here as appealing catalytic materials, or at least as atomically precise model systems. In addition, our analytical (PDF) methodology is generally applicable and expected to find use in other areas of clusters as well, and will be especially valuable for clusters with weakly scattering core atoms.
OSCAR: An Extensive Repository of Chemically and Functionally Diverse Organocatalysts
Authors: Gallarati Simone , van Gerwen Puck , Laplaza Ruben , Vela Sergi , Fabrizio Alberto , Corminboeuf Clemence
Published: August 2022

The automated construction of datasets has become increasingly relevant in computational chemistry. While transition-metal catalysis has greatly benefitted from bottom-up or top-down strategies for the curation of organometallic complexes libraries, the field of organocatalysis is mostly dominated by case-by-case studies, with a lack of transferable data-driven tools that facilitate both the exploration of a wider range of catalyst space and the optimization of reaction properties. For these reasons, we introduce OSCAR, a repository of thousands of experimentally derived or combinatorially enriched organocatalysts and their corresponding building blocks. We outline the fragment-based approach used for database generation and showcase the chemical diversity, in terms of functions and molecular properties, covered in OSCAR. The structures and corresponding stereoelectronic properties are publicly available and constitute the starting point to build generative and predictive models for organocatalyst performance.
Green Light Photoelectrocatalysis with Sulfur-Doped Carbon Nitride: Using Triazole-Purpald for Enhanced Benzylamine Oxidation and Oxygen Evolution Reactions
Authors: Jerigova Maria , Markushyna Yevheniia , F. Teixeira Ivo , Badamdorj Bolortuya , Isaacs Mark , Cruz Daniel , Lauermann Iver , Muñoz-Márquez Miguel Ángel , V. Tarakina Nadezda , López-Salas Nieves , Savateev Oleksandr , Jiménez Calvo Pablo
Published: August 2022

Novel high performing materials will dictate the pace of reinventing industrial chemical processes to attain desired carbon neutrality targets. Regarding the urgency of exploiting solar irradiation long range visible-light photoelectrocatalysts from abundant resources will play a key role in the aforementioned effort. Anionic doping via co-polymerization and pre-organization of precursors results in tuneable and extrinsic semiconductors, making this a highly attractive methodology. Triazole derivative-purpald, an unexplored precursor but sulfur (S) container, combined with melamine during one solid-state polycondensation reaction with two thermal steps leads to S-doped carbon nitrides (C3N4). The series of S-doped/C3N4-based materials demonstrated enhanced optical, electronic, structural, geometric, textural, and morphological properties and exhibited higher performance in organic benzylamine photooxidation, oxygen evolution, and similar storing energy (capacitor brief investigation) than references. Among the five composites, 50M-50P exhibited the highest photooxidation conversion yield (84±3%) of benzylamine to imine at 535 nm – green light for 48h, due to an extra discrete shoulder reaching ~700 nm, an unusual high sulfur content, preservation of crystal size, new intraband energy states, rare deep structural defects by layer distortion, hydrophobic surface, low porosity, and 10-16 nm pores. An in-depth analysis of S doping was investigated coupling x-ray photoelectron spectroscopy, transmission electron microscope, and elemental analysis, providing insights on bonds, distribution, and surface/bulk content. This work contributes to the development of amorphous photocatalysts with long-visible-light range for solar energy conversion and storage.
Phase-field modelling of molecular dynamics with diffusive motions
Authors: Masuda Kairi
Published: August 2022

Recently, phase-field modelling has been expanded to the molecular scale. However, such atomistic phase-field simulation cannot treat diffusive motions of molecules so far. Here, we modify phase-field modelling of molecular dynamics to include rigid body motions by employing quaternions and smooth random functions. This modelling successfully reproduces translational and rotational diffusive motions of a molecule. This study further expands the applications of atomic-scale phase-field modelling.
Eliminative Nucleophilic Aromatic Substitution of Hydrogen (SNArH): An Alternative Mechanism Explaining Reactivity of N-heterocyclic Carbene (NHC) toward Tritylium
Authors: Song Hayoung , Lee Eunsung
Published: August 2022

Despite a recent proposal on the mechanism of a single-electron transfer (SET) process between tritylium and 2,6-bis(diisopropylphenyl)imidazol-2-ylidene (IPr) based on evidence of transient IPr radical cation intermediate ([IPr]●+) formation, such oxidation is still contentious because of the high oxidation potential of N-heterocyclic carbenes. Our experimental analysis indicates that the appearance of a deep purple color, previously considered to be from transient [IPr]●+, originates from a zwitterionic intermediate (3a), not a radical cation. Here, we propose an alterna-tive mechanism for the reaction involving tritylium and IPr: the eliminative nucleophilic aromatic substitution of hydrogen (SNArH). This mechanism is noteworthy in two respects: (1) for showing the first example of SNArH without any vicarious leaving group and (2) for explaining how [NHC–H]+ can be generated without the formation of tran-sient [NHC]●+, which has been frequently proposed as an intermediate for the reaction between NHC and oxidants. These results also show that a transient strong single-electron donor (3a) could be generated by the eliminative SNArH mechanism for oxidants using NHCs, which is a more feasible explanation for the reactivity of NHCs with oxidants.
ANALYSIS OF THE IMPACT OF SANCTIONS AGAINST RUSSIA ON INTERNATIONAL TRADE
Authors: Lagutina Daria
Published: August 2022

The special operation in Ukraine and the subsequent sanctions imposed by Western countries against the Russian Federation create a risk for conducting foreign economic trade in commodities. The current situation is reflected in a significant increase in food prices and may lead to even higher inflation and weak global growth. In addition, the sanctions imposed have forced many countries to abandon trade with Russia, which can lead to disruption of key supply chains. The scale of the economic consequences cannot be estimated, and they will depend directly on how the future situation in Ukraine will develop and how it will affect foreign trade. In this article, we will look at the consequences of the impact of sanctions on export activities in the Southern Federal District and ways to overcome them.
RUSSIA'S CULTURAL SECURITY PROBLEM
Authors: Shumilina Vera , Gerasimik Andrey
Published: August 2022

This paper looks at the issue of cultural security as minimizing the harmful effects on individuals and society through the channels of culture. This problem is explored through human cultural activities, their disclosure and the examples associated with each type of such activity
HEALTHY LIFESTYLES AND PUBLIC HEALTH AS A THREAT TO THE SOCIO-ECONOMIC DEVELOPMENT OF THE COUNTRY
Authors: Shumilina Vera , Sim Igor
Published: August 2022

This article examines the concepts of "health" and "healthy lifestyle" as a threat to the state of the economy and its economic potential. For this purpose, the concepts of "health", "healthy lifestyle", and "health potential" are disclosed. The methods for their achievement both on the part of the individual and the state are defined.
DEVELOPMENT OF AN ORGANIZATION'S DEVELOPMENT STRATEGY AS AN EFFECTIVE WAY OF MANAGEMENT
Authors: Shumilina Vera , Deynega Daniil
Published: August 2022

The article examines the impact of strategy development on the management of the organization. It defines the concept, types and methods of creating a strategy. The article reveals the methods of developing an organization's development strategy. The authors focus on the importance of drawing up a strategy in the management of an organization
FEATURES OF THE RISK OF DECISION-MAKING UNDER CONDITIONS OF UNCERTAINTY
Authors: Shumilina Vera , Srapyan Vlada
Published: August 2022

This article examines the topical issue of risk management in an environment of increasing frequency over time of uncertainty, in particular the need for a deeper dive into the decision risk control system of innovation-oriented companies. The significance of decision risk in the face of uncertainty for innovation-oriented companies is demonstrated by the example of the Nokia brand. The need to elaborate an approach for innovation-oriented companies to form a risk management strategy in the face of increased uncertainty is substantiated
EFFECTIVE MANAGEMENT OF THE COMPANY'S VALUE
Authors: Shumilina Vera , Titovskaya Vladlena
Published: August 2022

This article analyzes the components of effective business value management. Five components of management are identified, the experience of foreign companies is analyzed. Based on the research, ways to improve the company's value management have been developed
CORPORATE HUMAN RESOURCES SECURITY
Authors: Shumilina Vera , Tyapkina Violetta
Published: August 2022

This article examines the problem of implementing personnel security in an enterprise. A definition of personnel security is given. It proposes a way of making an enterprise safe from unqualified, psychologically unstable personnel. It considers human potential as the main driving force of production
What Career Success Means to Student's Perspective: A Qualitative Study
Authors: Hamdan Amirul Hazmi , Supriatna Mamat , Yudha Eka Sakti
Published: August 2022

Career success has different meanings for each level and condition of the person. Careers have a range at every level of life, from children, and adolescents, to adults. However, none of the studies reveals the meaning of career success at the adolescent level, such as students. Therefore, this study aims to understand the concept of career success from a student's perspective. What is the meaning of career success, and what are the characteristics of students who are successful in their careers. This research uses a qualitative case study design approach. Data were collected by face-to-face semi-structural interview technique. Participants in this study were 20 high school students (10 boys and 10 girls). Data were analyzed by the narrative analysis method. The study's results revealed that students gave meaning to career success, including objective and subjective, such as the ability to achieve self-efficacy, self-happiness and make others happy. Students' career success characteristics are grouped with abilities in knowledge, attitudes and skills. The research findings can be used to develop career success in adolescents, develop career success instruments and the purpose of career guidance and counselling services.
PREDIKSI KONDISI FUNGSIONAL PERKERASAN JALAN MENGGUNAKAN PROGRAM HDM-4
Authors: Pamungkas Sri Bintang , Utomo Suryo Hapsoro Tri , Mulyono Agus Taufik , Suparma Latif Budi
Published: August 2022

Abstract

 

Road maintenance and improvement programs that are not optimal will have an impact on decreasing the functional condition of the road pavement. The functional condition of the road pavement can be predicted to estimate the potential damage that will occur. The road section of Sleman City Border–Yogyakarta City Border is a national road section that is the main route for the distribution of goods and people from Central Java Province to Special Region of Yogyakarta Province, and vice versa. The road segment must always be in a stable condition. This study aims to predict the functional condition of the pavement on the Sleman City Border–Yogyakarta City Border, using HDM-4 software. Prediction is done using 3 scenarios, namely: (1) do-nothing, (2) do-minimum, and (3) do-something. This study shows that the do-something scenario is the most appropriate scenario compared to the do-nothing scenario and the do-minimum scenario.

 

Keywords: road maintenance; road improvement; road pavement; functional condition of the pavement.

 

 

Abstrak

 

Program pemeliharaan dan peningkatan jalan yang tidak optimal akan berdampak pada penurunan kondisi fungsional perkerasan jalan. Kondisi fungsional perkerasan jalan dapat diprediksi untuk memperkirakan potensi kerusakan yang akan terjadi. Ruas Jalan Batas Kota Sleman–Batas Kota Yogyakarta, merupakan ruas jalan nasional yang menjadi jalur utama distribusi barang maupun orang dari Provinsi Jawa Tengah ke Provinsi DI Yogyakarta, dan sebaliknya. Ruas Jalan tersebut harus selalu diupayakan berada dalam kondisi mantap. Studi ini bertujuan untuk melakukan prediksi kondisi fungsional perkerasan jalan pada Ruas Jalan Batas Kota Sleman–Batas Kota Yogyakarta, dengan menggunakan software HDM-4. Prediksi dilakukan dengan menggu-nakan 3 skenario, yaitu: (1) do-nothing, (2) do-minimum, dan (3) do-something. Studi menunjukkan bahwa skenario do-something merupakan skenario yang paling tepat dibandingkan dengan skenario do-nothing, maupun skenario do-minimum.

 

Kata-kata kunci: pemeliharaan jalan; peningkatan jalan; perkerasan jalan; kondisi fungsional perkerasan jalan.
PENGARUH INDEKS INFRASTRUKTUR JALAN TERHADAP INDIKATOR EKONOMI DI INDONESIA
Authors: Hadi Prayoga Luthfil , Wasanta Tilaka , Santosa Wimpy
Published: August 2022

Abstract

 

Roads and bridges are the main infrastructure in supporting the realization of increased economic development. The relationship between the performance of road infrastructure provision and the improvement of economic performance is a very important aspect to understand. The magnitude of this relationship can be used as the basis for making decisions on road infrastructure development. The road infrastructure index is a parameter that can be used to measure road infrastructure services to the economy. The road infrastructure index used in this study is a comparison of road length with area and population. This infrastructure index is then analyzed in relation to economic indicators, such as Gross Regional Domestic Product and poverty index. This study shows that an increase in the area index helps improve socioeconomic indicators, such as an increase in GRDP and a decrease in the poverty index. Meanwhile, the increase in the value of the population index has a negative relationship with the growth of socioeconomic indicators, which means that the larger the population index, the worse the socioeconomic indicators. An increase in the population infrastructure index causes a decrease in the GRDP indicator and an increase in the poverty index, which means that longer roads are needed to serve the population.

 

Keywords: road; infrastructure performance; road infrastructure index; economic indicators.

 

 

Abstrak

 

Jalan dan jembatan merupakan suatu infrastruktur utama dalam mendukung terwujudnya peningkatan pembangunan ekonomi. Hubungan antara kinerja penyediaan infrastruktur jalan dengan peningkatan kinerja ekonomi merupakan aspek yang sangat penting untuk dimengerti. Besaran hubungan ini dapat dijadikan dasar untuk pengambilan keputusan pembangunan infrastruktur jalan. Indeks infrastruktur jalan merupakan parameter yang dapat digunakan untuk mengukur layanan infrastruktur jalan terhadap ekonomi. Indeks infrastruktur jalan yang digunakan pada studi ini adalah perbandingan panjang jalan dengan luas wilayah dan jumlah penduduk. Indeks infrastruktur ini kemudian dianalisis keterkaitannya dengan indikator ekonomi, seperti Produk Domestik Regional Bruto dan indeks kemiskinan. Studi ini menunjukkan bahwa kenaikan indeks luas wilayah membantu perbaikan indikator sosioekonomi, seperti kenaikan PDRB dan penurunan indeks kemiskinan. Sedangkan kenaikan nilai indeks penduduk memiliki hubungan negatif dengan pertumbuhan indikator sosioekonomi, yang berarti semakin besar indeks penduduk, indikator sosioekonomi memburuk. Kenaikan indeks infrastruktur penduduk menyebabkan penurunan pada indikator PDRB dan kenaikan pada indeks kemiskinan, yang berarti diperlukan jalan yang lebih panjang untuk melayani penduduk.

 

Kata-kata kunci: jalan; kinerja infrastruktur; indeks infrastruktur jalan; indikator ekonomi.
Alternativa de alimentación en aves de corral para la producción y comercialización de huevos orgánicos en el área metropolitana de Barranquilla
Authors: Pertúz Polo Jorge Luis , Suero Diego
Published: August 2022

En este artículo se demuestra la viabilidad de una granja autosostenible de huevos orgánicos, en donde la alimentación de las gallinas es cien por ciento natural y las aves no están confinadas en galpones. Se realizó una prueba piloto de esta granja de huevos orgánicos para obtener datos sobre la viabilidad del proyecto y también se realizaron proyecciones tres escenarios; pesimista, realista y optimista para determinar la viabilidad del proyecto. Los resultados obtenidos en el piloto no fueron los más alentadores porque el número de aves que se usaron no eran suficientes para obtener ganancias, pero en las proyecciones se obtuvieron resultados positivos incluso en el escenario pesimista.
Experiencia para abrir camino de acompañamiento a familias en tiempo de crisis: municipio de Soacha, Cundinamarca- (Colombia), 2006-2012
Authors: Bautista Cardoso Alexandra
Published: August 2022

Este artículo muestra resultados de la experiencia de investigación-sistematización de una metodología de acción comunitaria participativa que hace unos años se aplicó en dos barrios ―Loma Linda y la Capilla―, del municipio de Soacha, departamento de Cundinamarca (Colombia). En esa época, el proyecto se inició como formación práctica para estudiantes que participaron en ella. La experiencia recoge la práctica en responsabilidad social Construyendo Comunidad de UNIMINUTO y la metodología de acompañamiento uno a uno de la Pastoral Social Caritas, que fue aplicada con familias vulnerables social y económicamente. Se presenta con el propósito de plantear la inquietud para que pueda ser aplicada en otros sectores que actualmente viven una situación difícil debido a la pandemia de covid-19. Dado que esta crisis actual se considera como escenario de posible aplicación, explicar los pasos metodológicos y enumerar lecciones aprendidas abre opciones útiles para el lector y sus campos de acción.
Consolidación histórica y sociopolítica del pensamiento latinoamericano en los dos últimos siglos.
Authors: Delgado Del Aguila Jesús Miguel
Published: August 2022

Esta entrevista realizada al primer vicepresidente de la Academia Nacional de Letras de Uruguay, Gerardo Caetano, tiene como propósito debatir sobre la situación política que atraviesa Latinoamérica, a partir de los cuestionamientos que se han hecho acerca de algunos conceptos fundamentales, como el que se entiende por democracia. Las respuestas que brinda el doctor son esenciales, puesto que efectúa un recuento de la historia de los dos últimos siglos para confrontar el panorama que se aprecia en las coyunturas nacionales actuales y el rol que ejercen otras instituciones u organismos, como la prensa.
Interculturalidad crítica y ontologías relacionales: experiencias investigativas en diálogos de saberes
Authors: ORREGO ISRAEL ARTURO , Cuevas Marin Constanza Del Pilar
Published: August 2022

En este artículo, los autores recogen el debate que, en torno a la interculturalidad, y más concretamente a la interculturalidad crítica, irrumpe en América Latina en las últimas dos décadas, poniendo en diálogo este concepto con las actuales reflexiones alrededor de las ontologías relacionales. De esta manera, se alude a sus discursos fundacionales y nos preguntamos por la historicidad de dichos conceptos, sus contextos de emergencia, sus apuestas discursivas y metodológicas, ligadas a experiencias investigativas recientes, que permiten sugerir como propósito y premisa central, la interrelación y confluencia entre la interculturalidad crítica y las ontologías relacionales en el contexto regional latinoamericano. En este horizonte, se recurre a la revisión de fuentes bibliográficas, así como al estudio de siete proyectos de investigación presentados, entre 2014 y 2018, en el marco de las convocatorias de investigación de la Corporación Universitaria Minuto de Dios (UNIMINUTO), en Bogotá, los cuales se inscriben o incorporan en los referentes de la interculturalidad. La importancia en la revisión de estas fuentes radica en la posibilidad de generar diálogos de saberes, desde experiencias investigativas que surgen en el ámbito del diálogo de saberes entre comunidad y academia. De esta forma, y si bien se acude a estos siete proyectos específicos, la invitación es que, desde el marco conceptual aquí propuesto, sea factible el abordaje de proyectos afines de acuerdo con los distintos contextos. La metodología propuesta es interdiscursiva y transdisciplinar crítica, gracias a las diversas voces que entran en diálogo: los textos bibliográficos, las y los investigadores y nuestras propias voces como sujetos -actores de las reflexiones. Lo anterior, con el propósito de adelantar un análisis heterárquico que interpele las jerarquías del saber y que identifique la relevancia de la interculturalidad crítica y las ontologías relacionales en el ámbito académico y de las comunidades.
Mathematical and statistical models for the control of mosquito-borne diseases: the experience of Costa Rica
Authors: Vásquez Paola , Sanchez Fabio , Barboza Luis A. , García Yury E. , Calvo Juan G. , Chou-Chen Shu-Wei , Mery Gustavo
Published: August 2022

Objective.

To summarize the results of research conducted in Costa Rica in which mathematical and statistical methods were implemented to study the transmission dynamics of mosquito-borne diseases.

Methods.

Three articles with mathematical and statistical analysis on vector-borne diseases in Costa Rica were selected and reviewed. These papers show the value and relevance of using different quantitative methods to understand disease dynamics and support decision-making.

Results.

The results of these investigations: 1) show the impact on dengue case reports when a second pathogen emerges, such as chikungunya; 2) recover key parameters in Zika dynamics using Bayesian inference; and 3) show the use of machine learning algorithms and climatic variables to forecast the dengue relative risk in five different locations.

Conclusions.

Mathematical and statistical modeling enables the description of mosquito-borne disease transmission dynamics, providing quantitative information to support prevention/control methods and resource allocation planning.
Structure of Hyperplastic Processes of the Uterus in Menopausal Women According to the Results of an Echographic Study
Authors:   Azerbaijan state Institute of improvement of doctors named after A. Aliyev, Radiation Diagnostics Department. Baku AZ 1022, Republic of Azerbaijan, Ibadova Sh. T.
Published: August 2022

The purpose of the study was to evaluate the results of ultrasound scanning in menopausal women with endometrial hyperplastic processes. Materials and methods. Ultrasound protocols of 67 menopausal women with uterine hyperplastic processes were analyzed. Endometrial imaging data were assessed as corresponding to focal endometrial hyperplasia in 53 (79.1%) women. Uterine fibroids in combination with endometrial hyperplasia were found in 42 (62.7%) menopausal patients. According to the transvaginal ultrasound protocols, only endometrial polyp was detected in 20.9% of women (n=14). Results and discussion. The main complaints of patients with endometrial hyperplastic processes were abnormal uterine bleeding and abdominal pain. Every third (n=22; 32.8%) woman in the menopausal period noted uterine bleeding. Every second patient complained of lower abdominal pain of varying intensity (n=34; 50.7%). 11 (16.4%) women had no complaints. All the women studied underwent transvaginal and transabdominal ultrasound (in 3D mode). Ultrasound examination of the pelvic organs in order to differentiate endometrial pathology in 54% of cases was performed twice and more often. Ultrasound examination of the uterus was performed in standard projections. Endometrial polyps in most cases were oval in shape and were visualized quite clearly due to high echogenicity, homogeneous structure, the presence of a base that has no connection with the myometrium, and the integrity of the basal layer in the area of attachment of the polyp base. The sizes of endometrial polyps ranged from 1 mm to 90 mm (12.6 ± 3.5 mm). Small polyps were more often of increased echogenicity and homogeneous structure. At the same time, patients with endometrial polyps in the menopausal period often lack their visualization during transvaginal ultrasound. They are often verified as a focal or diffuse form of endometrial hyperplasia, while the low frequency of diagnosis of polyps in the menopausal period is determined. Ultrasound results were interpreted as corresponding to a combination of focal hyperplasia and endometrial polyp in 16.4% of cases (n=11). Ultrasound with color Doppler mapping in endometrial cancer revealed a sharp increase in the blood flow rate in the arсuate arteries (Vmax = 0.33 ± 0.06 m/s, Vmin = 0.16 ± 0.1 m/s). Conclusion. Ultrasound is an affordable method for diagnosing hyperplastic processes of the uterus. In the diagnosis and determination of the structure of hyperplastic processes of the uterus, combined transabdominal and transvaginal ultrasound is a highly informative non-invasive method. There is a need for further investigation of the management tactics of patients with endometrial pathology during menopause
Analysis of the Incidence of Prostate Cancer and the State of the Organization of Oncological Care for Patients in Ukraine
Authors:   Petro Mohyla Black Sea National University, Hygiene, Social Medicine, Public Health and Medical Informatics Department. 10, 68 Desantnykiv St., Mykolaiv 54003, Ukraine, Ziuzin V. O. , Saveliev A. O. , Tuzova O. V. , Frolov Yu. A. , Muntian L. Ya.
Published: August 2022

The purpose of the study was to highlight the incidence of prostate cancer and the state of the organization of oncological care for patients in Ukraine. Materials and methods. Monitoring of the defeat of the population of Ukraine by malignant neoplasms, which is carried out by the network of the National Cancer Registry, allows to obtain reliable information about the features of the development of this process. To determine the priorities in the organization of patients with cancer, a study of the onco-epidemiological situation and the state of organization of oncological care for patients with malignant neoplasms was carried out. Results and discussion. Coming out of the realities that are caused by the coronovirus pandemic, special attention was paid not only to the general level of prostate cancer in Ukraine, but also to the structural age-related features of cancer incidence and mortality. The most pronounced changes relate to the structural features of the incidence of malignant neoplasms of the prostate gland, the proportion of which in the structure of the incidence of the male population has been constantly increasing over the past years. In the structure of mortality from cancer of the male population, an increase in the proportion of malignant neoplasms of the prostate gland should also be noted. Prostate cancer is characterized by the highest annual increase in incidence per 100,000 male population. The morbidity rate reaches its maximum values in the age groups of 70–74 and 80–84 years old, mortality – in groups of 80–84 years old. Starting from the age category of 50–54 years to the age of 70–74 years, in each older group, the incidence rate increases by 2–3 times and decreases only at the age of more than 85 years. Conclusion. As a result, this pathology takes the second place in the structure of the incidence of the male population aged 55–74 years and the first place in the age group of more than 75 years. Diagnostic and therapeutic care for patients with prostate cancer is characterized by a high level of neglect and mortality from cancer. Not in all cases, morphological verification is carried out; the stage of the malignant neoplasm is not always determined. As a result of such negligence, the long-term results of treatment in Ukraine are much worse than in Europe and the USA. The experience of economically developed countries shows that with a clear organization of the treatment and diagnostic process, significant success can be achieved in providing oncological care to the population