bluuebunny/crossref_metadata_2025 huggingface dataset:
Genomic Evolution and Selective Pressure Analysis of a Novel Porcine Sapovirus in Shanghai, China
Authors: Tao Jie , Li Benqiang , Shi Ying , Cheng Jinghua , Tang Pan , Jiao Jiajie , Liu Huili
Published: March 2024

Porcine sapovirus (PoSaV) is one of the most significant pathogens causing piglet diarrhea, and one with limited genetic characterization. In this study, the prevalence, infection pattern, and genetic evolution of porcine sapovirus were elucidated in detail. The positive rate of PoSaV was 10.1% (20/198), with dual, triple, and quadruple infections of 45%, 40%, and 5%, respectively. To further explore the viral composition in the PoSaV-positive diarrhea feces, metagenomic sequencing was carried out. The results confirmed that RNA viruses accounted for a higher proportion (55.47%), including the two primary viruses of PoSaV (21.78%) and porcine astrovirus (PAstV) (24.54%) in the tested diarrhea feces samples. Afterward, a full-length sequence of the PoSaV isolate was amplified and named SHCM/Mega2023, and also given the identifier of GenBank No. PP388958. Phylogenetic analysis identified the prevalent PoSaV strain SHCM/Mega2023 in the GIII genogroup, involving a recombinant event with MK962338 and KT922089, with the breakpoint at 2969–5132 nucleotides (nt). The time tree revealed that the GIII genogroup exhibits the widest divergence time span, indicating a high likelihood of viral recombination. Moreover, SHCM/Mega2023 had three nucleotide “RPL” insertions at the 151–153 nt site in the VP2 gene, compared to the other GIII strains. Further selective pressure calculations demonstrate that the whole genome of the SHCM/Mega2023 strain was under purifying selection (dN/dS < 1), with seven positively selected sites in the VP1 protein, which might be related to antigenicity. In conclusion, this study presents a novel genomic evolution of PoSaV, offering valuable insights into antigenicity and for vaccine research.
Fermentation Characteristics of Fermented Milk with Streptococcus thermophilus CICC 6063 and Lactobacillus helveticus CICC 6064 and Volatile Compound Dynamic Profiles during Fermentation and Storage
Authors: Zhao Xiaoxin , Ge Yuanyuan , Yu Xuejian , Liu Chong , Li Haizhi , Wang Xi , Yao Su
Published: March 2024

The lactic acid bacteria Streptococcus thermophilus and Lactobacillus helveticus are commonly used as starter cultures in dairy product production. This study aimed to investigate the characteristics of fermented milk using different ratios of these strains and analyze the changes in volatile compounds during fermentation and storage. A 10:1 ratio of Streptococcus thermophilus CICC 6063 to Lactobacillus helveticus CICC 6064 showed optimal fermentation time (4.2 h), viable cell count (9.64 log10 colony-forming units/mL), and sensory evaluation score (79.1 points). In total, 56 volatile compounds were identified and quantified by solid-phase microextraction and gas chromatography–mass spectrometry (SPME-GC-MS), including aldehydes, ketones, acids, alcohols, esters, and others. Among these, according to VIP analysis, 2,3-butanedione, acetoin, 2,3-pentanedione, hexanoic acid, acetic acid, acetaldehyde, and butanoic acid were identified as discriminatory volatile metabolites for distinguishing between different time points. Throughout the fermentation and storage process, the levels of 2,3-pentanedione and acetoin exhibited synergistic dynamics. These findings enhance our understanding of the chemical and molecular characteristics of milk fermented with Streptococcus thermophilus and Lactobacillus helveticus, providing a basis for improving the flavor and odor of dairy products during fermentation and storage.
Cellulose Sulfate Nanofibers for Enhanced Ammonium Removal
Authors: Johnson Ken I. , Borges William , Sharma Priyanka R. , Sharma Sunil K. , Chang Hao-Yen , Abou-Krisha Mortaga M. , Alhamzani Abdulrahman G. , Hsiao Benjamin S.
Published: March 2024

In this study, a sulfonation approach using chlorosulfonic acid (CSA) to prepare cellulose sulfate nanofibers (CSNFs) from raw jute fibers is demonstrated. Both elemental sulfur content and zeta potential in the CSNFs are found to increase with increasing CSA content used. However, the corresponding crystallinity in the CSNFs decreases with the increasing amount of CSA used due to degradation of cellulose chains under harsh acidic conditions. The ammonium adsorption results from the CSNFs with varying degrees of sulfonation were analyzed using the Langmuir isotherm model, and the analysis showed a very high maximum ammonium adsorption capacity (41.1 mg/g) under neutral pH, comparable to the best value from a synthetic hydrogel in the literature. The high ammonium adsorption capacity of the CSNFs was found to be maintained in a broad acidic range (pH = 2.5 to 6.5).
Automated Monitoring System for Suspended Photocatalytic Batch Reactions Based on Online Circulatory Spectrophotometry
Authors: Lei Da-Peng , Huang Jian-Hua
Published: March 2024

Employing an automated monitoring system (AMS) for data acquisition offers benefits, such as reducing the workload, in the kinetic study of suspended photocatalytic batch reactions. However, the current methods in this field tend to narrowly focus on the substrate and often overlook the optical characteristics of both the mixture and solid particles. To address this limitation, in this study, we propose a novel AMS based on online circulatory spectrophotometry (OCS) and incorporate debubbling, aeration, and segmented flow (DAS), named DAS-OCS-AMS. Initially, a debubbler is introduced to mitigate the issue of signal noise caused by bubbles (SNB). Subsequently, an aerated and segmented device is developed to address the issue of particle deposition on the inner wall of the pipeline (PDP) and on the windows of the flow cell (PDW). The proposed DAS-OCS-AMS is applied to monitor the kinetics of the photocatalytic degradation of Acid Orange Ⅱ by TiO2 (P25), and its results are compared with those obtained using the traditional OCS-AMS. The comparative analysis indicates that the proposed DAS-OCS-AMS effectively mitigates the influence of SNB, PDP, and PDW, yielding precise results both for the mixture and solid particles. The DAS-OCS-AMS provides a highly flexible universal framework for online circulatory automated monitoring and a robust hardware foundation for subsequent data processing research.
Effects of Excitation Angle on Air-Puff-Stimulated Surface Acoustic Wave-Based Optical Coherence Elastography (SAW-OCE)
Authors: Feng Zhengshuyi , Zhang Yilong , Jiang Weiyi , Wang Weichen , Li Chunhui , Huang Zhihong
Published: March 2024

Increased stiffness of tissues has been recognised as a diagnostic feature of pathologies. Tissue stiffness characterisation usually involves the detection of tissue response from mechanical stimulation. Air-puff optical coherence elastography (OCE) can generate impulse surface acoustic waves (SAWs) on tissue surface without contact and evaluate the mechanical properties of tissue. This study endeavours to explore the optimal excitation angle for air-puff OCE, a parameter that lacks standardisation at present, by investigating the relationship between the frequency bandwidth and peak-to-peak signal-to-noise ratio (SNR) of SAWs for different excitation angles (relative to the normal surface) of air-puff on the sample, from 5° to 85°, with an interval of 5° applied on the phantom. Due to the unevenness of human hands, 20°, 45° and 70° angles were employed for human skin (10 healthy adults). The results show that a smaller excitation angle could produce higher wave frequency bandwidth; a 5° angle generated an SAW with 1747 Hz frequency bandwidth, while an 85° angle produced an SAW with 1205 Hz. Significant differences were not shown in peak-to-peak SNR comparison between 5° and 65° on the phantom, but between 65° and 85° at the excitation position, a reduction of 48.6% was observed. Furthermore, the group velocity of the SAWs was used to evaluate the bulk Young’s modulus of the human tissue. The outcomes could provide essential guidance for air-puff-based elastography studies in clinical applications and future tissue research.
Synergistically Enhanced Electrochemical Sensing of Food Adulterant in Milk Sample at Erbium Vanadate/Graphitic Carbon Nitride Composite
Authors: Sanjeewani U. G. Anushka , Wang Sea-Fue
Published: March 2024

Dimetridazole (DMZ), a nitroimidazole derivative, is a notable antibiotic that has garnered growing interest in the medical community owing to its noteworthy pharmacological and toxicological properties. Increasing interest is being directed toward developing high-performance sensors for continuous monitoring of DMZ in food samples. This research investigated an electrochemical sensor-based nano-sized ErVO4 attached to a sheet-like g-CN-coated glassy carbon electrode to determine dimetridazole (DMZ). The chemical structure and morphological characterization of synthesized ErVO4@g-CN were analyzed with XRD, FTIR, TEM, and EDS. Irregular shapes of ErVO4 nanoparticles are approximately 15 nm. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) were followed to examine the electrochemical performance in pH 7 phosphate buffer solution for higher performance. This electrochemical sensor showed a low detection limit (LOD) of 1 nM over a wide linear range of 0.5 to 863.5 µM. Also, selectivity, stability, repeatability, and reproducibility studies were investigated. Furthermore, this electrochemical sensor was applied to real-time milk sample analysis for the detection of analytes.
Whiter and Greener RP-HPLC Method for Simultaneous Determination of Dorzolamide, Brinzolamide, and Timolol Using Isopropanol as a Sustainable Organic Solvent in the Mobile Phase
Authors: El Deeb Sami , Abdelsamad Khalid , Parr Maria Kristina
Published: March 2024

A sustainable reversed-phase chromatographic method has been developed and validated for the simultaneous determination of three active pharmaceutical ingredients, dorzolamide, brinzolamide, and timolol, used to treat glaucoma. The eco-friendly solvent isopropanol has been used as an organic mobile phase constituent. According to the Hansen space green solvent selection tool, isopropanol has a G score of 6.5, comparable to ethanol, which has a G score of 6.6. The mobile phase consists of isopropanol: aqueous sodium acetate buffer (0.1 M, pH 4.25) in the ratio of 10:90 (v/v). The flow rate was maintained at 1 mL/min. Dorzolamide and brinzolamide were detected at 254 nm, and timolol was detected at 295 nm. A high-purity silica with a polymeric C18 modification column (150 × 4.6 mm, 5 µm particle size) was used for this separation. The three compounds were eluted within 8 min. The method was validated according to ICH guidelines. The calibration curves were linear in the range of 20–70 µg/mL, 40–140 µg/mL, and 20–70 µg/mL for dorzolamide, brinzolamide, and timolol, respectively. The LODs were found to be 1.61 µg/mL, 1.60 µg/mL, and 3.16 µg/mL for dorzolamide, brinzolamide, and timolol, respectively. Good accuracy and precision were obtained for the three compounds. The greenness and whiteness of the method were indicated using the AGREE, ChlorTox, and RGB12 tools.
The Influence of Textile Type, Textile Weight, and Detergent Dosage on Microfiber Emissions from Top-Loading Washing Machines
Authors: Julapong Pongsiri , Srichonphaisarn Palot , Meekoch Thidarat , Tabelin Carlito Baltazar , Juntarasakul Onchanok , Phengsaart Theerayut
Published: March 2024

The use of washing machines to wash textiles gradually breaks down synthetic fibers like polyethylene terephthalate (PET) or polyester (PES) in diverse clothing materials, a process that is growing in notoriety because it generates microplastics (MPs). In this study, we investigated the emission of microfibers, including both microplastic fibers (MPFs) and natural fibers (MFs), from top-loading washing machines. Our investigation focused on four popular textiles with prevalent weave structures (plain, satin, and twill): (i) PES, (ii) tetron cotton (TC), (iii) chief value cotton (CVC), and (iv) cotton (CO) fabrics. This study also examined the effects of textile weight and detergent dosage on MF emissions. After washing, MFs were collected through filtration, and their concentrations were determined using micro-Fourier Transform Interferometry (μFTIR). The results showed varying concentrations of MFs in the washing effluent depending on the type of textile. Specifically, CVC exhibited the highest emission at 4022 particles/L, followed by TC, PES, and CO at 2844 particles/L, 2382 particles/L, and 2279 particles/L, respectively. The hydrophobic nature of PES makes this type of textile prone to rapid degradation in detergent-rich environments, leading to high MF emissions. Additionally, the mechanical properties of textiles, such as tensile and bending strengths, may play a crucial role in the generation of MFs in washing machines. Textiles made of CO with twill weaves demonstrated superior strength and correlated with lower emissions of MFs. In comparison, textiles made of CVC and satin weave exhibited lower mechanical properties, which could explain their high emissions of MFs. Finally, the MF emissions of textiles composed of PES and TC, which are plain weaved, could be attributed to their intermediate mechanical properties compared with those of CVC and CO.
Design and Implementation of a Wireless Power Transfer System for Electric Vehicles
Authors: Sari Vekil
Published: March 2024

Wireless power transfer (WPT) systems, which have been around for decades, have recently become very popular with the widespread use of electric vehicles (EVs). In this study, an inductive coupling WPT system with a series–series compensation topology was designed and implemented for use in EVs. Initially, a 3D Maxwell (ANSYS Electromagnetics Suite 18) model of the system was generated. The impact of individual parameters on the coupling coefficient was analyzed through systematic variations in each parameter’s values. As a result, a system with a higher coupling coefficient was obtained. Using this system, three distinct load cases were investigated for their efficiency in the Simplorer (ANSYS Electromagnetics Suite 18) circuit. Subsequently, a prototype of the system was constructed, and the experimental results were compared with the model’s results. This study shows that both the output power and the efficiency of the system increase as the load resistance increases. The results obtained in this study are anticipated to offer valuable insights for the enhancement of WPT system design.
Problems of organizing and conducting control and supervisory measures in the field of labor protection
Authors:   ANO CPE Education Center «StroyEnergoMontazhServis», Bogdanov A. S.
Published: March 2024

The article discusses the problems that arise during the conduct of control and supervisory activities on the part of regulatory authorities. The qualification requirements for state labor inspectors, problems of a moral and ethical nature during inspections are considered, the need to divide labor inspectors into legal and technical ones is considered. Proposals have been formulated to improve the interaction between controlled persons and state labor inspectors.
Modernization of drying chambers based on fuzzy regulation
Authors:   St. Petersburg State Forestry Engineering University named after S. M. Kirov, Department of Mathematical Methods in Management, Shifrin B. M.
Published: March 2024

One of the most important stages of woodworking is drying, thanks to which the physical and mechanical properties of wood are improved and its shelf life is increased. Drying of wood is a process that significantly affects the external environment. The fact is that drying most often takes place in convection drying chambers, which consume a lot of energy and are not efficient enough due to constant air exchange with the atmosphere. At the same time, about 50 % of the heat energy received is lost, and carbon dioxide released from the chamber negatively affects the environment. The paper proposes the modernization of a typical drying chamber to increase its efficiency by replacing the classical PID control with fuzzy logic algorithms in order to reduce the duration of transient processes.
Innovative methods of drying wood to minimize waste and improve recycling efficiency in the Baikal region
Authors:   Falcon LLC, Ivashchenko D. N.
Published: March 2024

The study is dedicated to the analysis of innovative wood drying methods in the Baikal region with the aim of minimizing waste and enhancing processing efficiency. It examines microwave and vacuum drying methods, their impact on wood quality, and economic efficiency. The work includes experimental research and analysis of the potential economic and ecological impact of the proposed methods. Recommendations for the implementation of new technologies in regional enterprises are presented, as well as prospects for further research in this area.
Analysis of the causes of occupational injuries at an operating woodworking enterprise
Authors:   Arctic State Agrotechnological University, Department of Technology and Equipment of the Forest Complex, Kunitskaya O. A. , Abrashkin V. A. ,   Arctic State Agrotechnological University, Department of Technology and Equipment of the Forest Complex, Kurochkin P. A., ,   Research and Design Institute for Gas Processing (JSC «NIPIGAZ»)
Published: March 2024

The article is devoted to the analysis of the problems of industrial safety of personnel of a woodworking enterprise in the Far Eastern Federal District. The article does not specify the name of the company in order to avoid a conflict situation. The article, first of all, will be useful to the heads of enterprises of this profile and employees of their labor protection departments, since it allows you to take a «look from the outside» and take the necessary corrective measures.
The psychological aspects of dental students with temporomandibular disorders at Hue University of Medicine and Pharmacy
Authors: Nguyen Gia Kieu Ngan , Vo Thi To Van , Bach Ngoc Bao Huy , Nguyen Hoang Lan , Vo Duc Huy
Published: March 2024

Background: Psychological factors such as anxiety and depression have been recognized as the etiology of temporomandibular disorders.

Objectives: The study aimed to evaluate the prevalence of temporomandibular disorders in dental students and describe the state of depression and anxiety and related factors in the students with the disorders.

Materials and methods: 323 students at the Faculty of Odonto-Stomatology, Hue University of Medicine and Pharmacy, were examined to detect temporomandibular disorders, using the DC/TMD axis I. Then GAD-7 and PHQ-9 questionnaires were used to screen for anxiety and depression in the group with the disorders.

Results: The proportion of students with temporomandibular disorders was 38.1%, intra-articular disorders accounted for the highest rate (80.5%). The percentages of depression and anxiety among students with the disorder were 28.4% and 55.3%, respectively. 41.5% of TMD students had mild anxiety and the same proportion of students had risk of depression. Risk factors associated with depression and anxiety were economic status and excercise, respectively (p < 0.05).

Conclusions: The percentage of students with temporomandibular disorders is relatively high. The majority of students with the disorders are at risk for depression and low level of anxiety. There is a link between the economic status and depression, between exercise and anxiety.

Key words: anxiety, depression, temporomandibular disorders.
Study on direct medical cost of inpatient treatment for gastrointestinal cancers at Hue University of Medicine and Pharmacy Hospital
Authors: Luu Nguyen Nguyet Tram , Tran Xuan Thinh , Tran Quang Phuc
Published: March 2024

Background: Gastrointestinal cancers, including liver cancer, colorectal cancer, and stomach cancer, are the most common cancers in the world as well as in Vietnam, posing a leading threat to human health. The cost of treating these cancers is a major problem that burdens not only patients but also healthcare systems. The study aims to analyze treatment costs for the four most common types of gastrointestinal cancer nowadays.

Materials and method: A cross-sectional study was conducted to collect data from 300 medical records of inpatients with gastrointestinal cancers at the hospital of Hue University of Medicine and Pharmacy in 2021.

Results: The average direct medical cost per inpatient admission was 14,239,915 VND (95% CI: 12,502,135 - 15,977,695 VND) in 2021. The cost per inpatient admission for liver cancer treatment was the highest, by 20,267,780 VND (95% CI: 16,036,541- 24,499,018 VND). The cost of drugs accounted for the highest proportion (38.1%), followed by the cost of medical supplies (14.7%). There is a statistically significant difference between the median cost of groups classified by age, metastasis, comorbidity, and length of hospital stay.

Conclusion: Direct medical costs for patients with four common types of gastrointestinal cancers impose a considerable economic burden on patients and the health system. Further cost analysis studies need to be conducted. Strategies to decrease the economic burden of gastrointestinal, such as screening programs, and improving awareness of the prevention of cancer should be developed in Vietnam.

Key words: direct medical costs, gastrointestinal cancer, Hospital of Hue University of Medicine and Pharmacy.
Strategi Peningkatan Produk Emping Jagung
Authors: Mahmud Fadhilah , Nainiti Selfius P.N. , Lango Alfetri N.P.
Published: March 2024

Sinar 313 UKM is one of the industries engaged in the processing of corn chips. This industry needs to carry out a mature strategy and development for the survival of the agro-industry in the future. This is done bearing in mind that in the future the competition will be very tight. The development of MSME agro-industry is largely determined by factors including internal and external. This research uses descriptive analysis method with the process of collecting data through observation and interviews. Meanwhile, to find out the strategy used in SMEs in this study is a SWOT analysis with IFAS and EFAS calculations to determine the strategy to be taken. Furthermore, the data is processed by comparing the level of agreement relative to each other, so that the value of the factors that influence the processed corn is known. The results of this study indicate that there are 10 strategic items that support the productivity of corn chips in Sinar 313 UKM. Some of them are capacity optimization, enlarged market share, intensification of online sales through social media, efficiency, improving production technology, etc. While the obstacles found in this study include the lack of supply of raw materials, weather, inadequate promotion, lack of skilled workforce, and low government attention.
DAMPAK PENGEMBANGAN AGROWISATA KOPI TERHADAP SOSIAL EKONOMI PETANI DI DESA COLOL KECAMATAN LAMBA LEDA TIMUR KABUPATEN MANGGARAI TIMUR
Authors: Nalo Katarina , Adar Damianus , Siubelan Yacobus C.W.
Published: March 2024

This research was conducted in Colol Village, East Lamba Leda District, East Manggarai Regency in February 2023. This study aims to determine: (1) the activities carried out by coffee agrotourism farmers in Colol Village (2) the impact of developing coffee agrotourism on the socio-economic conditions of farmers (3) Differences in income of coffee agro-farmer farmers before and after Colol Coffee Agro-tourism was established (4) contribution of coffee farming income to coffee farmer household income. The analytical tool used is the Paired Sample T-test and Revenue Contribution analysis. The results showed that (1) the activities carried out by Colol Coffee Agrotourism farmers in tourist attraction areas such as: land clearing, promoting and selling coffee, making agrotourism facilities, a guide caffee shop and home stay (2) the impact of Colol Coffee Agrotourism development brought socio-economic changes to the people in Colol Village such as: Increasing job opportunities and training people to be more creative and innovative (3) the income of farmers after the inauguration of agro-tourism is higher than the income of farmers before the inauguration of agro-tourism, which is shown by the results of the Paired Sample T-test which has a value of 0.015 (<0.05) (4) The amount of contribution from coffee farming to the total farmer household income that is equal to 79,55%.
ARSITEKTUR POHON PADA AREA RUANG TERBUKA HIJAU KOTA KUPANG PROVINSI NUSA TENGGARA TIMUR
Authors: Soimin Muhammad
Published: March 2024

Keberadaan pepohonan dengan beragam model arsitektur di area-area ruang terbuka hijau (green open space) di daerah urban perkotaan bertujuan bukan hanya untuk menambah nilai aestetik dari suatu Kota, tetapi juga memberikan manfaat jasa ekosistem (ecosystem services) yang signifikan, seperti penyerapan polutan di udara dan konservasi biodiversitas. Studi desktriptif-eksploratif ini bertujuan untuk mengeksplorasi model arsitektur pohon di area-area ruang terbuka hijau yang dipilih secara purposive sampling yang berada di Kota Kupang. Data hasil observasi dianalisa secara deskriptif kualitatif dengan berpedoman pada referensi arsitektur pohon tropis karya Francis dan Oldman An Essay on The Architecture and Dynamics of Growth of Tropical Trees. Model arsitektur pohon yang terobservasi pada area-area ruang terbuka hijau Kota Kupang terdiri dari 26 Species yang tergolong dalam 15 Famili. Dari ke 26 species pohon tersebut, terdapat 8 model arsitektur pohon, yaitu model Attim, Aubreville, Champagnat, Corner, Rauh, Raux, Scarrone, dan Troll. Keberadaan pepohonan tersebut perlu dikonservasi bahkan ditingkatkan dari segi luas tutupan kanopi serta diversitas spesies pohonnya sehingga nilai aestetiknya tetap terjaga dan bahkan semakin baik serta mampu menjaga jasa ekosistem (ecosystem services) yang diberikan, baik manfaat kepada masyarakat publik sebagai penyerap polusi karbon monoksida dan nitrogen oksida, maupun untuk biodiversitas yang ada di dalam ekosistem tersebut sebagai fungsi konservasi.
Preferensi Pakan dan Pengaruhnya Terhadap Pertumbuhan Kura-Kura Leher Ular Rote (Chelodina mccordi) Di Kawasan Hutan Dengan Tujuan Khusus Oelsonbai Kelurahan Fatukoa Kecamatan Maulafa Kota Kupang
Authors: Kristiani Patrisia
Published: March 2024

This research was conducted to determine Feed Preferences and Their Influence on the Growth of the Rote Snake Neck Turtle (C. mccordi) in Oelsonbai Special Purpose Forest Areas, Fatukoa Sub-district, Maulafa District, Kupang City. This research was conducted from September to November 2021. Data collection on feed preferences and the effect of feed on growth used the observation method. Analysis of feed preference data used the Neu Index criteria calculation formula and growth data analysis used the growth and growth rate calculation formulas. The results showed that the type of feed that consumed the most was skipjack tuna. Through the calculation of feed preferences, the results obtained that the type of feed with the highest preference index was skipjack tuna, followed by tilapia, and the type of feed with the lowest level of preference was kombong fish. The results of the proximate analysis and literature study on the nutrients contained in the feed showed that the nutrients contained in tilapia, skipjack, and kombong needed C. mccordi for growth. Good food for growth and health of C. mccordi is shellfish. Skipjack tuna can be given as the main feed while tilapia and cockroach are given as additional feed. Feeding effect on the growth of C. mccordi. In general, the observation parameters experienced normal growth from the beginning to the end of the study week.
Pengaruh Komposisi Media Tanam Terhadap Perkecambahan Benih Cendana (SantalumAlbum Linn.)
Authors: Gue Yohanes
Published: March 2024

Sandalwood (Santalum album Linn.) is a wood-producing forest plant in the province of East NusaTenggara (NTT) which has great economic value and is an endemic species. The sandalwood (Santalumalbum Linn.) propagation has been widely carried out in NTT, various studies have been carried out toincrease the sandalwood plant, with the development and replanting of sandalwood (Santalum albumLinn.) plants from nurseries or saplings from natural distribution. Utilization of sawdust waste as aseedling medium is one method to support the development of sandalwood plants, the increase insandalwood productivity depends on the fertility of the planting media. Sawdust waste contains chemicalcompounds such as lignin, cellulose, and hemicellulose. The method used in this study was CompletelyRandomized Design (CRD) with a comparison of the composition of the growing media used (A0) Soil(100% (control))10kg, (A1) 50% soil + 25% sawdust waste + 25% sand, (A2) 25% soil + 50% wastesawdust + 25% sand, (A3) 25% soil + 25% waste sawdust + 50% sand, (A4) 50% waste sawdust + 50%soil, (A5) 50% waste sawdust + 50% sand. The results of this study showed that the A3 treatment witharatio of 25% soil + 25% sawdust waste + 50% sand gave the highest average increase and hada verysignificant effect on germination rate, germination rate index and germination value.
Ultrasonic velocity change imaging of a human forearm
Authors: Nakata Koki , Wada Kenji , Matsuyama Tetsuya , Okamoto Koichi , Matsunaka Toshiyuki
Published: March 2024

We have investigated noninvasive imaging of the adipose region in the living human body, utilizing an ultrasonic velocity change (UVC) method caused by body temperature change. Our primary goal is to determine the optimal measurement conditions for acquiring effective UVC images. To achieve this objective, we applied the UVC method to the forearm area, which is easily comprehensible in terms of the body’s internal structure and less susceptible to motion artifacts from the heartbeat. By utilizing echo data approximately 30 s after initiating ultrasonic warming, adjusting the time difference between paired images for UVC image generation to multiples of the heartbeat period, and selectively extracting and analyzing image pairs with high correlation values, we successfully obtained effective UVC images targeting humans for the first time. This process enables noninvasive differentiation between subcutaneous fat and muscle regions in the human forearm.
Determinan fenomena perubahan iklim dalam perspektif sosial ekonomi di Pulau Jawa dan Pulau Sumatera
Authors: Ramadhan Zufar Abdulmaajid , Emalia Zulfa
Published: March 2024

The phenomenon of climate change has become a special concern throughout the world. This research was conducted to look at the determining factors from a social and economic perspective that can influence climate change on the Island of Java and Sumatera. The research is used panel data with a total of 80 research data in the 2018-2022. The variables used in the research were Average of Air Temperature (TEMP), GRDP of Industrial Sector (ADHK), Population Density (KP), and Electrical Energy in Industrial Sector (ELECIND). The results of his research show that all independent variables such as GRDP of Industrial Sector, Population Density, and Electrical Energy in Industrial Sector have a significant and positive effect on the phenomenon of climate change on the Island of Java and Sumatera as viewed through the average of air temperature.
Quando os nervos gritam
Authors: Rozeira Carlos Henrique Barbosa , Silva Marcos Fernandes da , Souza Gilson Borges de , Cunha Ursula Amanda Sa da , Fulgoni Gabriela Pereira , Duarte Raphael Silva , Carvalho Caroline Verdan Jacintho de , Ribeiro Tatiana Gomes da Silva , Camacho Stéphany Zampier , Marques Débora Vilas Calheiros , Almeida Suellen Azeredo de , Casemiro Francislene dos Santos , Teixeira Laura Boechat Sales
Published: March 2024

A dor, um fenômeno complexo que transcende a percepção física, emerge como um sinal de alerta do sistema nervoso, desempenhando um papel importante na sobrevivência e proteção do organismo. Nesse contexto, objetiva-se o presente artigo aprofundar a compreensão da natureza múltipla da dor, abarcando seus aspectos sensoriais e emocionais. A exploração dos mecanismos neurobiológicos e a diferenciação entre dor aguda e crônica ressaltam a imperiosidade de uma abordagem biopsicossocial para enfrentar as dores crônicas. Além disso, busca-se investigar a intricada inter-relação entre dor física e emocional, à luz de descobertas recentes na neurociência. Adicionalmente, examinam-se casos raros de insensibilidade à dor decorrentes de mutações genéticas. Este estudo visa uma compreensão holística da dor, integrando perspectivas clínicas, neurobiológicas e genéticas para aprimorar estratégias terapêuticas. A compreensão dos mecanismos neurobiológicos da dor é crucial para aprimorar o bem-estar de indivíduos que enfrentam desconfortos persistentes. Esta pesquisa, de caráter básico e teórico, adota uma abordagem exploratória qualitativa. A revisão bibliográfica foi conduzida em plataformas acadêmicas e científicas, empregando termos específicos como "dor", "neurobiologia" e "sistema nervoso" para identificar estudos pertinentes. Ao longo da investigação, emergiu a constatação de que estudos recentes indicam a ausência de diferenciação, no cérebro humano, entre a dor física e emocional, evidenciando a intrínseca interconexão entre aspectos psicológicos e fisiológicos da dor. A compreensão dos circuitos neuroquímicos e elétricos subjacentes à transmissão da dor torna-se crucial para o desenvolvimento de estratégias de tratamento mais eficazes e personalizadas.
THE EMPLOYMENT RATE AND EMPLOYABILITY STATUS OF BACHELOR OF SCIENCE IN OFFICE ADMINISTRATION GRADUATES FROM ACADEMIC YEAR 2018 TO 2019: A TRACER STUDY
Authors: Sherlyn Mae T. Lopez  , April Mae T. Callo  , Jonelson C. Escandallo
Published: March 2024

Tracer study is very important as a way of understanding the relevance and quality of programs offered by the higher education institutions as well as the labor market. Thus, the purpose of this quantitative study is to trace the graduates of the Kapalong College of Agriculture, Sciences and Technology (KCAST). Particularly, the study was conducted among 87 graduates of Bachelor of Science in Office Administration (BSOA) in A.Y. 2018-2019. The researchers found out that majority of the course contents of their program are relevant to their career requirements. In terms of employability rate of the graduates, more than half of them got employed one to three months after the graduation. Most of them are single and 23 years of age. 43.6% of the respondents are currently working as full-time in their job. With the data gathered, the researchers concluded that through their competent communication and interpersonal skills, graduates were more likely to land on the jobs connected to the degree they have studied. Therefore, the researchers recommend that the institution, particularly the department, should hold various job fairs and extensive seminars, as well as training and lectures for the graduating office administration students which are designed based on the specific needs of the industry.
KEYWORDS: Office Administration Graduates, employment, quantitative-descriptive method, tracer study, Philippines.
Investigation of the Properties of Metakaolin-Based Geopolymer Materials Using Ferrisilicates as Additives Synthesised in Sodium Hydroxide Solution or Distilled Water
Authors: Tazune Franklin Kenne , Nzangue Lucile Dolly Dedzo , Kamlo Alexis Ngueteu , Tchakouté Hervé Kouamo , Rüscher Claus Henning
Published: March 2024

The main objective of this work is to investigate the behaviour of ferrisilicates prepared from hematite and two silica sources (rice husk ash and silica fume) on the compressive strength of geopolymer materials. Some ferrisilicates were synthesised in 2M sodium hydroxide solution. Others were prepared using distilled water as a solvent. The Fe2O3/SiO2 molar ratio contained in the ferrisilicates is set to 0.2. Metakaolin and sodium silicate solution with a molar ratio of SiO2/Na2O of 1.6 were used as the aluminosilicate and hardener in this work. The control geopolymer compressive strength is 53.34 MPa. For ferrisilicates prepared in alkaline solution using rice husk ash and silica fume, their compressive strength values are 71.91 and 77.72 MPa, respectively. The compressive strengths of the geopolymer materials made from ferrisilicates prepared in distilled water using rice husk ash and silica fume are 74.13 and 44.73 MPa, respectively. In the presence of ferrisilicate obtained by dissolving silica fume and hematite in sodium hydroxide solution, the maximum compressive strength of 77.72 MPa was obtained. When ferrisilicates from the mixture of silica fume, hematite, and distilled water are used as an additive, the minimum compressive strength of 43.73 MPa is achieved. It can be concluded that additives synthesised in an alkaline medium and those obtained in distilled water with rice husk ash improve compressive strength. On the other hand, the compressive strength of the geopolymer material that uses the additive produced with silica fume in distilled water is lower (44.73 MPa).
Effect of Radiation on Casson Hybrid Nano-fluid Flow over an Inclined Surface Using Blasius Rayleigh-Stokes Variable: Application in Solar Aircraft
Authors: Oladapo Olayinka Akeem , Ajala Olusegun Adebayo , Akindele Akintayo Oladimeji , Obalalu Adebowale Martins
Published: March 2024

Solar energy is the most important heat source from the sun, with photovoltaic cells, solar power plates, photovoltaic lights, and solar pumping water being widely used. This study looks at solar energy analysis and a method for increasing the efficacy of solar aircraft by combining solar and nano-technological energy. To enrich the research on solar aircraft wings, the study is built on the investigation of heat transfer by employing a hybrid nano-fluid past inside the parabolic trough solar collector (PTSC). The thermal source is referred to as the solar radiative flow. The heat transfer efficiency of the wings was validated for different qualities such as porous medium, viscous dissipation, play heating, and thermal energy flow. The modelled energy and momentum equations were controlled by utilizing the Galerkin-weighted residual method (GWRM). This study used two types of nano-solid particles, copper (Cu) and zirconium dioxide (ZrO2), in ethylene glycol (EG) as the standard fluid. Various control parameters for velocity, temperature outlines, frictional factor, and Nusselt number were explained and shown in figures and tables. Also, analyses reveal that the thermal profile reduces with an increase in variable thermal conductivity parameters. This study will be of considerable economic value to marine engineers, mechanical engineers, physicists, chemical engineers, and others since its application will help them improve their operations. The findings revealed that the magnetic term is positively impacted by the Cu-ZrO2/EG hybrid nanofluid's thermal distribution.
Tarımsal ürün bazlı su bütçesi modeli: Seyhan Havzası örneği
Authors: Sönmez Erdoğan Fizyon , Berberoğlu Süha , Erdoğan Mehmet Akif
Published: March 2024

Konumsal bilgi teknolojileri; tarımsal üretimi etkileyen toprak, iklim, bitki türü, su isteği vb. faktörlerin doğru, güvenilir, ekonomik ve hızlı değerlendirilmesine imkan veren bir teknoloji haline gelmiştir. Bu teknoloji konuma bağlı ürün tercihinin çok daha doğru belirlenmesine imkan tanıyarak; tarımsal alanların sürdürülebilirliğinin desteklenmesini olası kılmıştır. Bu çalışma ile Seyhan Havzası için konumsal bilgi teknolojisi yardımıyla gerçekleştirilen Ürün Su Bütçesi Modeli (Agrometshell) ile su yeterlilik indeksi, toplam su ihtiyacı, fazla su ve eksik su değerleri tahmin edilerek 23 ürün grubu içinden konum bazlı en uygun ürün önerilmiştir. Ürün grupları için elde edilen su yeterlilik indeksi 0 ile 100 arasında değerler almıştır. Su yeterlilik haritalarının istatistiklerine bakıldığında Seyhan Havzası genelinde ortalama su yeterlilik yüzdesi en yüksek baklagil yem bitkileri, turpgiller ve bağcılık ürün gruplarında olduğu tespit edilmiştir. Ortalama su yeterlilik yüzdesinin en düşük olduğu ürün grupları ise patlıcangiller, sert kabuklu meyveler, sıcak iklim tahılları olarak tespit edilmiştir. Ürün su bütçesi modeli ile bitkilerin fenolojik gelişiminin takibi yapılmış ve aynı zamanda iklimsel koşulların bitkilerin gelişimlerini nasıl etkileyeceği tahmin edilmiştir. Böylelikle risk analizleri yapılarak bu risklere karşı önlem alınmasında yol gösterici olacak çalışmalar yapılmasına katkı sağlayacağı düşünülmektedir. Bu çalışma kapsamında çıktıların görselleştirilmesi ve değerlendirilmesi sürecinde de CBS’den yararlanılmış ve böylelikle model sonuçlarının daha iyi ifade edilmesi sağlanmıştır.
O IMPACTO DA PERDA: EXPERIÊNCIAS DE DOR E PROCESSOS DE LUTO NA FAMÍLIA DIANTE DA CHEGADA DA MORTE
Authors: Oliveira Adriano Vilar , Lopes Gabriel César Dias , Marie Simon
Published: March 2024

Este trabalho teve como objetivo compreender as experiências de luto vivenciadas pelas famílias diante de processos de perdas. Sendo assim, está fundamentado com base numa pesquisa bibliográfica que trata inicialmente das questões relativas à morte e sua repercussão nas relações familiares. Em seguida, aborda o conceito de luto e suas fases. As considerações teóricas propostas destacam ainda as contribuições da Psicologia durante a experiência dos mais diversos tipos de luto vivido pelas famílias e tem como foco da discussão a importância do psicólogo no acompanhamento dos indivíduos que precisam lidar com perdas. Os resultados do estudo apontam para a importância do acompanhament o psicológico durante o período de elaboração do luto.
From the Perspective of Digital Economy, the New Direction of Rural Development in Jiangxi
Authors: Xia Siying , Xia Simin , Zhou Wei
Published: March 2024

This study explores the impact of the digital economy on rural development and finds that the digital economy has become an important force in promoting my country's economic development. In Jiangxi, a major agricultural province, digital technology can help improve agricultural production efficiency, reduce production costs, promote agricultural productivity, optimize the agricultural industry chain, and increase farmers' income. However, Jiangxi's digital infrastructure construction is still insufficient, especially in remote and poor areas. Therefore, this study aims to provide targeted policy suggestions for policymakers, promote the transformation and upgrading of the rural economy, and provide a theoretical basis for realizing the rural revitalization strategy. In the context of the digital economy, Jiangxi Province actively promotes rural industrial innovation, financial popularization and digital governance improvements, laying a digital foundation for increasing the income of rural families and achieving the strategic goals of rural revitalization.
ALMA-LEGUS. II. The Influence of Subgalactic Environments on Molecular Cloud Properties
Authors: Finn Molly K. , Johnson Kelsey E. , Indebetouw Remy , Costa Allison H. , Adamo Angela , Aloisi Alessandra , Bittle Lauren , Calzetti Daniela , Dale Daniel A. , Dobbs Clare L. , Donovan Meyer Jennifer , Elmegreen Bruce G. , Elmegreen Debra M. , Fumagalli Michele , Gallagher J. S. , Grasha Kathryn , Grebel Eva K. , Kennicutt Robert C. , Krumholz Mark R. , Lee Janice C. , Messa Matteo , Nair Preethi , Sabbi Elena , Smith Linda J. , Thilker David A. , Whitmore Bradley C. , Wofford Aida
Published: March 2024

We compare the molecular cloud properties in subgalactic regions of two galaxies, barred spiral NGC 1313, which is forming many massive clusters, and flocculent spiral NGC 7793, which is forming significantly fewer massive clusters despite having a similar star formation rate to NGC 1313. We find that there are larger variations in cloud properties between different regions within each galaxy than there are between the galaxies on a global scale, especially for NGC 1313. There are higher masses, line widths, pressures, and virial parameters in the arms of NGC 1313 and the center of NGC 7793 than in the interarm and outer regions of the galaxies. The massive cluster formation of NGC 1313 may be driven by its greater variation in environment, allowing more clouds with the necessary conditions to emerge, although no one parameter seems primarily responsible for the difference in star formation. Meanwhile NGC 7793 has clouds that are as massive and have as much kinetic energy as the clouds in the arms of NGC 1313, but have densities and pressures more similar to those in the interarm regions and so are less inclined to collapse and form stars. The cloud properties in NGC 1313 and NGC 7793 suggest that spiral arms, bars, interarm regions, and flocculent spirals each represent distinct environments with regard to molecular cloud populations. We see surprisingly little difference in surface density between the regions, suggesting that the differences in surface densities frequently seen between arm and interarm regions in lower-resolution studies are indicative of the sparsity of molecular clouds, rather than differences in their true surface density.
ALMA-LEGUS. I. The Influence of Galaxy Morphology on Molecular Cloud Properties
Authors: Finn Molly K. , Johnson Kelsey E. , Indebetouw Remy , Costa Allison H. , Adamo Angela , Aloisi Alessandra , Bittle Lauren , Calzetti Daniela , Dale Daniel A. , Dobbs Clare L. , Donovan Meyer Jennifer , Elmegreen Bruce G. , Elmegreen Debra M. , Fumagalli Michele , Gallagher J. S. , Grasha Kathryn , Grebel Eva K. , Kennicutt Robert C. , Krumholz Mark R. , Lee Janice C. , Messa Matteo , Nair Preethi , Sabbi Elena , Smith Linda J. , Thilker David A. , Whitmore Bradley C. , Wofford Aida
Published: March 2024

We present a comparative study of the molecular gas in two galaxies from the Legacy ExtraGalactic UV Survey (LEGUS) sample: barred spiral NGC 1313 and flocculent spiral NGC 7793. These two galaxies have similar masses, metallicities, and star formation rates, but NGC 1313 is forming significantly more massive star clusters than NGC 7793, especially young massive clusters (<10 Myr, >104
M
⊙). Using Atacama Large Millimeter/submillimeter Array (ALMA) CO(2–1) observations of the two galaxies with the same sensitivity and resolution (13 pc), we directly compare the molecular gas in these two similar galaxies to determine the physical conditions responsible for their large disparity in cluster formation. By fitting size–line width relations for the clouds in each galaxy, we find that NGC 1313 has a higher intercept than NGC 7793, implying that its clouds have higher kinetic energies at a given size scale. NGC 1313 also has more clouds near virial equilibrium than NGC 7793, which may be connected to its higher rate of massive cluster formation. However, these virially bound clouds do not show a stronger correlation with young clusters than with the general cloud population. We find surprisingly small differences between the distributions of molecular cloud populations in the two galaxies, though the largest of those differences is that NGC 1313 has higher surface densities and lower freefall times.