bluuebunny/crossref_metadata_2025 huggingface dataset:
Pneumocentrifugal Classification of Dispersed Particles during Grain Milling
Authors: Terekhova Olga , Duyunova Yana
Published: March 2024

Russia enjoys a stable demand for flour products, including those obtained by the dry method of starch and gluten production. This study featured pneumocentrifugal parameters of fine particles in a spiral separator that classified milled grain into fractions, separated the solid phase from air, and identified the high-protein flour fraction in the flow.

Pneumatically classified flour was subjected to mathematical modeling and experimental research. The analysis of movement and deposition of particles in the working area covered particle mass, density, air-flow rate, and geometry, as well as their effect on the trajectory of particle movement and deposition. The experiment also involved the effect of air-flow rate and air-mix concentration on the classification efficiency.

Particles from various grinding and break systems demonstrated classification modes that differed in soaring rate, size, and density. At an air-flow rate of 6–8 m/s, turn 1 of the spiral separator had the ratio of the internal coil radius to the inner pipe diameter as r1/dpipe = 7.9; it was r1/dpipe = 7 on turn 2 and fell down to r1/dpipe = 6.25 on turn 3; for all subsequent turns, the ratio was r1/dpipe < 5. Under these conditions, the fraction reached 160 µm and included small high-protein flour fractions with a particle size of 17–20 µm. The percentage of product accumulated on turns 1, 2, and 3 was 80, 12, and 8%, respectively. The maximal product separation efficiency of the third drain system was as high as 98% at an input rate of 6 m/s. The maximal separation efficiency for premium flour reached 99.2% at an input rate of 4.2 m/s.

The separator proved efficient in classifying wheat grain flour into fractions as it was able to separate high-protein fraction and dispersed particles from the air flow. The separator could be used both as an independent device and as part of a complex technological scheme at the stage of pneumatic separators and unloaders.
Gender Classification through Fusion of Holistic and Region-based Facial Patterns
Authors: Eskandarı Maryam
Published: March 2024

In this study, a robust gender prediction system is proposed to fuse global and regional facial representations through score and feature level fusion. In order to extract facial features for gender classification, Binarized Statistical Image Features (BSIF) approach is applied on holistic and regional features of face images. The extracted features are then concatenated to combine the region-based information at feature level fusion. Then the optimized sub-set of features is selected using Particle Swarm Optimization (PSO) method. Finally, the holistic and regional features are combined at score level fusion to produce the final set of scores for gender classification. This study applies Weighted Sum (WS) rule strategy for score level fusion. The experimental results are performed on Multiple Biometric Grand Challenge (MBGC) and CASIA-Iris-Distance databases with consideration of subject-disjoint training and testing evaluation to testify the validity of the proposed gender classification system. The experimental results of the study demonstrate the success of the proposed scheme for gender prediction.
Genetic Factors and MicroRNAs in the Development of Gallbladder
Cancer: The Prospective Clinical Targets
Authors: Quraishi Roshni , Sanyal Somali , Dwivedi Medha , Moitra Monika , Dwivedi Manish
Published: March 2024

Gallbladder cancer (GBC) is an uncommon condition in which malignant (cancer) cells
are detected in gallbladder tissue. Cancer is often triggered when normal cells turn malignant and
begin to spread. Cancer can also be caused by genetic anomalies that result in uncontrolled cell
proliferation and tumor development. MicroRNAs (also known as miRNAs or miRs) are a group
of small, endogenous, non-coding RNAs of 19-23 nucleotides in length, which play a key role in
post-transcriptional gene regulation. These miRNAs serve as negative gene regulators by supervising
target genes and regulating biological processes, including cell proliferation, migration, invasion,
and apoptosis. Cancer development and progression relate to aberrant miRNA expression.
This review demonstrated the implication of various genetic factors and microRNAs in developing
and regulating GBC. This suggests the potential of genes and RNAs as the diagnostic, prognostic,
and therapeutic targets in gallbladder cancer.
Predicting One-year Recurrence of HCC based on Gadoxetic Acid-enhanced
MRI by Machine Learning Models
Authors: Lin Yingyu , Wang Jifei , Chen Yuying , Zhou Xiaoqi , Tang Mimi , Chen Meicheng , Song Chenyu , Xu Danyang , Peng Zhenpeng , Feng Shi-Ting , Zhou Chunxiang , Dong Zhi
Published: March 2024

Objective:

Accurate prediction of recurrence risk after resction in patients with Hepatocellular Carcinoma (HCC) may help to individualize therapy strategies.
This study aimed to develop machine learning models based on preoperative clinical factors and multiparameter Magnetic Resonance Imaging
(MRI) characteristics to predict the 1-year recurrence after HCC resection.

Methods:

Eighty-two patients with single HCC who underwent surgery were retrospectively analyzed. All patients underwent preoperative gadoxetic acidenhanced
MRI examination. Preoperative clinical factors and MRI characteristics were collected for feature selection. Least Absolute Shrinkage
and Selection Operator (LASSO) was applied to select the optimal features for predicting postoperative 1-year recurrence of HCC. Four machine
learning algorithms, Multilayer Perception (MLP), random forest, support vector machine, and k-nearest neighbor, were used to construct the
predictive models based on the selected features. A Receiver Operating Characteristic (ROC) curve was used to assess the performance of each
model.

Results:

Among the enrolled patients, 32 patients experienced recurrences within one year, while 50 did not. Tumor size, peritumoral hypointensity,
decreasing ratio of liver parenchyma T1 value (ΔT1), and α-fetoprotein (AFP) levels were selected by using LASSO to develop the machine
learning models. The area under the curve (AUC) of each model exceeded 0.72. Among the models, the MLP model showed the best performance
with an AUC, accuracy, sensitivity, and specificity of 0.813, 0.742, 0.570, and 0.853, respectively.

Conclusion:

Machine learning models can accurately predict postoperative 1-year recurrence in patients with HCC, which may help to provide individualized
treatment.
APLIKASI Trichoderma asperellum DAN KAPUR UNTUK MENDEKOMPOSISI LIMBAH KOTORAN SAPI SEGAR SERTA MENGENDALIKAN AKAR GADA TANAMAN KUBIS
Authors: Jasuli Jasuli , Abadi Abdul Latief , Djauhari Syamsuddin
Published: March 2024

Penyakit akar gada pada tanaman kubis, yang disebabkan oleh jamur Plasmodiophora brassicae, merupakan ancaman serius bagi pertanian kubis. Penyakit ini menyebar dengan cepat pada suhu hangat dan kondisi pH yang asam. Limbah kotoran sapi yang dibuang oleh peternak sapi di Desa Pujon dialirkan ke dalam saluran air dan digunakan untuk irigasi pertanian, yang berpotensi mencemari lahan pertanian dan meningkatkan suhu dan keasaman tanah. Penggunaan kotoran sapi mentah sebagai bahan organik pada lahan pertanian turut mempercepat pertumbuhan jamur P. brassicae. Pengendalian biologis dengan menggunakan Trichoderma asperellum dan kapur menunjukkan potensi dalam mengurangi penyakit akar gada dan membantu dalam dekomposisi. Penelitian ini bertujuan untuk mengevaluasi efektivitas T. asperellum dan kapur dalam mendekomposisi kotoran sapi dan mengendalikan penyakit akar gada. Penelitian dilakukan di Desa Pujon Kidul, Malang, dan Laboratorium Penyakit Tumbuhan di Universitas Brawijaya selama periode lima bulan mulai dari Februari hingga Juni 2021. Penelitian terdiri dari dua tahap: pertama, dekomposisi kotoran sapi menggunakan T. asperellum dan kapur, dan kedua, aplikasi produk dekomposisi pada tanaman kubis yang terinfeksi penyakit akar gada. T. asperellum dan kapur efektif mengurangi insiden penyakit akar gada menjadi 0% dalam perlakuan T5P1 (20 hari penambahan T. asperellum pada kotoran sapi + kontrol), T4P2 (15 hari penambahan T. asperellum pada kotoran sapi + kapur), dan T5P2 (20 hari penambahan T. asperellum pada kotoran sapi + kapur), sementara pengamatan mikroskopis gejala penyakit menunjukkan penurunan hingga 10% dalam perlakuan T5P2 (20 hari penambahan T. asperellum pada kotoran sapi + kapur), menunjukkan tingkat efikasi yang tinggi pada perlakuan tersebut.
Uporczywa terapia jako czynnik determinujący zjawisko wypalenia zawodowego u pielęgniarek
Authors: Rybka Mariola , Pytel Wioletta
Published: March 2024

Wstęp. Wyniki współczesnych badań pokazują, że zjawisko wypalenia zawodowego dotyczy różnych grup zawodowych i specjalności. Wspólnym wyróżnikiem tych zawodów jest ich psychospołeczny charakter, który oznacza wymóg stałej koncentracji na problemach innych osób. Zjawisko to stanowi poważny problem, z którym borykają się pielęgniarki uczestniczące w procesie terapeutycznym skierowanym wobec pacjentów przewlekle chorych, a szczególnie gdy przybierają znamiona uporczywej terapii.

Cel. Celem badań była analiza opinii personelu pielęgniarskiego na temat stosowania terapii daremnej i jej wpływu na zjawisko powstania wypalenia zawodowego.

Materiały i metody. Respondenci stanowili grupę 100 pielęgniarek/rzy, którzy pracowali w oddziale Intensywnej Terapii i Opieki Paliatywnej w Szpitalu Wielospecjalistyczny im. Dr Ludwika Błażka w Inowrocławiu. Wiek uczestników badania mieścił się w przedziale 25 do 60 lat. Metodą wykorzystaną w powyższej pracy był sondaż diagnostyczny. Narzędziem badawczym był kwestionariusz do mierzenia skali Odczuć Zawodowych (MBI).

Wyniki. Dla zdecydowanej większości ankietowanych, czyli 85% praca z pacjentami u kresu życia stanowi źródło emocjonalnego wyczerpania. Ponadto respondenci wskazywali na najczęściej pojawiające się objawy o największym nasileniu to zmęczenie i poczucie niezadowolenia, spadek motywacji do pracy oraz satysfakcji z jej wykonywania. Symptomy zmęczenia pojawiały się u 48% pomimo nocnego odpoczynku. 69% badanych cało-dzienna praca z pacjentami w ciężkim stanie klinicznym odczuwa wyczerpanie fizyczne i psychiczne. Dla większości ankietowanych, czyli 65% praca z bezpośrednim kontaktem z pacjentem wiąże się z silnym stresem. Prawie połowa badanych, bo 45% odczuwa wyczerpanie emocjonalne określając jako funkcjonowanie na skraju sił.

Wnioski. Do najczęściej wskazywanych czynników stresogennych w pracy pielęgniarek/pielęgniarzy są: nadmiar obowiązków, odpowiedzialność za zdrowie drugiego człowieka, udział w działaniach, gdzie terapia nie przynosi oczekiwanych efektów.
STRATEGI KOMUNIKASI PEMASARAN PATRON WEDDING ORGANIZER MELALUI MEDIA SOSIAL INSTAGRAM
Authors: Aulia Anugerah Tesa , Widiarti Pratiwi Wahyu
Published: March 2024

Tujuan dari penelitian ini untuk: (1) mendiskripsikan strategi komunikasi pemasaran Patron Wedding Organizer melalui Instagram; dan (2) mengetahui peluang Patron Wedding Organizer dalam meningkatkan daya tarik client melalui media sosial Instagram sebagai sarana promosi. Penelitian ini menggunakan metode deskriptif pendekatan kualitatif. Penentuan informan menggunakan teknik purposive sampling. Informan dalam penelitian ini yaitu Komisaris, Direktur, dan Staf Marketing Patron Wedding Organizer. Teknik pengumpulan data menggunakan wawancara, observasi, dan dokumentasi. Teknik pemeriksan data dalam penelitian ini menggunakan triangulasi sumber. Hasil penelitian menunjukkan bahwa strategi komunikasi pemasaran Patron Wedding Organizer melalui media sosial Instagram sebagai berikut: (1) Patron Wedding Organizer selektif dalam pemilihan foto yang akan diunggah; (2) Mencari atensi followers dengan mengunggah foto pada waktu yang tepat; (3) Menggunakan caption yang dapat menceritakan foto tersebut; (4) Menggunakan fitur instastory untuk menarik perhatian followers. Lebih lanjut diketahui bahwa bagi Patron Wedding Organizer di era saat ini Instagram memiliki peluang yang besar untuk menarik minat client. Kata kunci: komunikasi, pemasaran, media sosial, Instagram, Patron Wedding Organizer
Analysis of energy poverty in Andean rural households and design of an efficient cooking solution using biomass
Authors: Silva-Castelo Wladimir A , Córdova-Uvidia Rafael , Ordoñez-Echeverria Ángel , Aquino-Arroba Miguel
Published: March 2024

This work explores energy poverty in the rural households surrounding the Chimborazo Faunal Production
Reserve (RPFCH) and proposes an efficient cooking solution using firewood. Energy poverty was evaluated
through the multidimensional poverty index (MEPI), including the 10% rule, hidden energy poverty, disproportionate expenses, and a subjective analysis of housing conditions. The research found ten households experiencing moderate energy poverty with a MEPI of 0,1562. An efficient cooking solution was proposed as
an improved rocket stove design with an ignition system and forced air at the combustion chamber inlet. This
stove utilizes a solar panel and batteries to power the fan. Its thermal efficiency is 13%, including Peltier cells
to convert residual heat into DC electricity. The rocket stove's heating capacity is 1,6 kW, which is sufficient
for heating a small room and cooking meals. After implementation, a follow-up energy poverty analysis using
the same indicators is recommended to evaluate the effectiveness of the proposed solution and its impact on
reducing energy poverty.
Keywords: energy poverty; rocket stove; thermal efficiency; room heating; Peltier cell; photovoltaic energy.
Anthropometric indicators and their relationship with body fat in obese women.
Authors: Rosales-Ricardo Yury , Caiza-Ruiz Vinicio , Álvarez-Carrión Sonia
Published: March 2024

To determine the anthropometric indicator of best correlation with body fat in women with obesity aged 20 to
59 years. A correlational cross-sectional study was conducted. The percentage of body fat was determined (%
GC) and lipid profile (LDL, TG, CT), Body Mass Index (BMI), Hip Waist Index (ICC), Waist Height Index
(ICE), Conicity Index (CI), Body Adiposity Index (BSI), Hip Height Index (HSI) and Body Weight by Height
Index (BWI). Seven hundred and eighty obese women were selected by random cluster sampling. The
correlation of the mean % GC with anthropometric indicators was: BMI:0.697, ICC: 0.661, ECI: 0.910, CI:
0.587, ICadE: 0.323, CAI: 0.578, EICP: 0.549. The lipid profile correlation with anthropometric variables and
indices was: LDL (BMI: 0.615, ICC: 0.765, ECI: 0.881, CSI: 0.535, ICadE: 0.588, ECDI: 0.492), TG
(BMI: 0.690,
ICC: 0.776, ICE: 0.855, CI:0.625, CI: 0.572, CIadE: 0.632, EICP: 0.631) Y TC (BMI: 0.699, ICC: 0.715, ECI:
0.829, CI: 0.601, ACI: 0.609, CIadE: 0.709, EICP: 0.500) High correlation between % GC and Waist
Circumference. Waist Height Index had a better correlation with Body Fat.
Keywords: obesity; health; women; nutritional status
In vitro evaluation of the inhibitory capacity of three Trichoderma isolates on Ralstonia
solanacearum
Authors: Pico Rosado Jimmy , Suárez Palacios Christopher , Jiménez Cumbicus Jessenia , Paredes Puga Ernesto , Sabando Gladys , Andrade Olalla Liliana
Published: March 2024

Bacterial wilt in bananas, caused by Ralstonia solanacearum or Moko, limits crop production and threatens
Ecuador. This study evaluated Trichoderma isolates in laboratory conditions as an innovative alternative to
ensure sustainability in banana production. The four R. solanacearum. isolates were obtained from banana
plants exhibiting disease symptoms and were characterized through morphological and biochemical tests. Four
treatments were evaluated: three isolates of fungi from the genus Trichoderma (Trichoderma viride, T. harzianum, T. asperellum) and one consisting of a combination of the three isolates above. The inhibitory capacity
of the Trichoderma isolates on R. solanacearum colonies was measured. A completely randomized design
with three replicates was used, and general linear and mixed models were employed, with qq-plot graphs for
normality and residual plots for variance homogeneity.
Furthermore, a Fisher's LSD test was conducted at a significance level of α = 0.05. In the biochemical tests,
the bacterial isolates exhibited specific characteristics of R. solanacearum in two bacterial isolates. In the
inhibition tests, treatment four and treatment one (consortium of the three Trichoderma isolates and Trichoderma viride) showed the highest inhibitory potential, with 76.07% and 61.19%, respectively. The consortium
of Trichoderma isolates demonstrated the highest inhibitory potential against R. solanacearum, with day 10
being the time with the highest percentage of inhibition (72.61%).
Keywords: Bacterial wilt, Ralstonia solanacearum, Trichoderma, inhibition
Description of the primary Loreto-coca river contamination through the measurement of physicochemical parameters.
Authors: Allauca P Jose , Lopez P Carlos , Daza Jennyfer , Chamba Joyce
Published: March 2024

The main objective of this article is to describe the pollution in the main Loreto-Coca rivers using physicochemical parameters. Our analysis is focused on the Orellana province and examines the Suno, Napo, Coca,
and Payamino rivers, which are adversely impacted by oil and mining activities. These activities result in toxic
and chemical residues, such as heavy metals and other contaminants. Samples were collected following the
INEN 2176 standard to do this. We could evaluate parameters such as pH, dissolved oxygen, conductivity,
turbidity, nutrients (nitrates, phosphates), heavy metals, and COD using laboratory equipment and specific
techniques and methods. The level of pollution was determined by comparing these results with permissible
limits. Therefore, based on the comparative results obtained, environmental education is crucial for raising
awareness about the importance of protecting and conserving water as a vital resource. Conducting these
studies provides essential information for taking preventive and corrective measures and monitoring and addressing identified issues to safeguard public health and the environment.
Keywords: pollution, water, rivers, sample, standard, physicochemical parameters.
Complex Hospital-Based Electronic Prescribing–Based Intervention to Support Antimicrobial Stewardship: Qualitative Study
Authors: Cresswell Kathrin , Hinder Susan , Sheikh Aziz , Watson Neil , Price David , Heed Andrew , Pontefract Sarah Katie , Coleman Jamie , Beggs Jillian , Chuter Antony , Slee Ann , Williams Robin
Published: March 2024

Background

Antimicrobial resistance (AMR) represents a growing concern for public health.

Objective

We sought to explore the challenges associated with development and implementation of a complex intervention designed to improve AMS in hospitals.

Methods

We conducted a qualitative evaluation of a complex AMS intervention with educational, behavioral, and technological components in 5 wards of an English hospital. At 2 weeks and 7 weeks after initiating the intervention, we interviewed 25 users of the intervention, including senior and junior prescribers, a senior nurse, a pharmacist, and a microbiologist. Topics discussed included perceived impacts of different elements of the intervention and facilitators and barriers to effective use. Interviews were supplemented by 2 observations of ward rounds to gain insights into AMS practices. Data were audio-recorded, transcribed, and inductively and deductively analyzed thematically using NVivo12.

Results

Tracing the adoption and impact of the various components of the intervention was difficult, as it had been introduced into a setting with competing pressures. These particularly affected behavioral and educational components (eg, training, awareness-building activities), which were often delivered ad hoc. We found that the participatory intervention design had addressed typical use cases but had not catered for edge cases that only became visible when the intervention was delivered in real-world settings (eg, variations in prescribing workflows across different specialties and conditions).

Conclusions

Effective user-focused design of complex interventions to promote AMS can support acceptance and use. However, not all requirements and potential barriers to use can be fully anticipated or tested in advance of full implementation in real-world settings.
СТАТИСТИЧЕСКИЙ АНАЛИЗ ВЛИЯНИЯ ВРЕМЕННЫХ ИНТЕРВАЛОВ НА РЕЗУЛЬТАТ ИЗМЕРЕНИЯ УСИЛИЯ НА ЩУПЕ КРУГЛОМЕРА RoundTest RA-120P
Authors: Епифанцев К.
Published: March 2024

Рассмотрена проблема калибровки кругломера RoundTest RA-120P. Получены результаты, определяющие оптимальные значения двух параметров при проведении центрирования/нивелирования. Результаты будут полезны при планировании и проведении измерений и контроля деталей – тел вращения – на кругломере RoundTest RA-120P.
Galactomannan Antigen Assay for the Diagnosis of Invasive Aspergillosis: A Study from a Tertiary Care Hospital of Central India
Authors: Keche Archana , Patil Girish , Ganga Ranganath T. , Sahu Dibakar
Published: March 2024

Invasive Aspergillosis (IA) is a severe and fatal infection, especially in immunocompromised patients. Galactomannan is a polysaccharide antigen present in the cell wall of Aspergillus species, which is secreted into the blood and other body fluids during hyphal growth. Therefore, detecting galactomannan antigen is very useful in diagnosing IA, along with clinical features and radiological findings. The study period was one year (January 2022 to December 2022). The data was collected retrospectively from the medical records and case sheets of all clinically suspected invasive aspergillosis patients. Galactomannan antigen assay was performed using an FDA-approved Platelia Aspergillus EIA test kit, and results were interpreted according to the manufacturer’s instructions (Cut off > 0.5). A total of 236 clinically suspected Invasive Aspergillosis cases were enrolled in the study. Galactomannan positivity was predominantly seen in patients aged 40 – 60 years, with male preponderance. Of 236 patients, 14.40% were immunocompromised, and 85.59% were immunocompetent. According to EORTC/MSG definitions, we got one proven IA case, 21 probable cases (8.89%), and nine (3.81%) possible cases. In immunocompetent individuals also, we observed 48.72% (115/236) galactomannan positivity, especially in old Pulmonary Tuberculosis (PTB) patients. Galactomannan positivity was higher in Broncho alveolar lavage (BAL) samples (n=70, 85.36%) than in serum samples (n=77, 46.67%). We found culture positivity of 14.06%, with Aspergillus fumigatus being the commonest isolate, followed by Aspergillus flavus. There is increased positivity of galactomannan in BAL samples compared to serum; hence BAL is a better specimen for diagnosis of Invasive Pulmonary Aspergillosis (IPA).
Cycle day 2 serum levels of insulin-like growth factor-1 as a prognostic indicator for poor responders to controlled ovarian hyperstimulation
Authors: Jaafar Hamad Witwit Rafraf , J Alizzi Fadia , Amer Al-Anbari Lubna , Ali Hussaini Huda
Published: March 2024

Objective: This study aimed to compare serum insulin-like growth factor (IGF)-1 levels on cycle day 2 among poor ovarian responders, age-matched normal responders, and high responders undergoing in vitro fertilization (IVF). The investigation sought to understand the potential correlation between IGF-1 levels and ovarian response, with a focus on advanced maternal age and poor ovarian response.
Methods: Conducted at the High Institute of Infertility Diagnosis and Assisted Reproductive Technologies in Baghdad, this clinical experiment involved 30 infertile individuals. The primary outcome measures included Cycle Day 2 IGF-1 serum levels, anti-Müllerian hormone (AMH) levels, antral follicle count (AFC), and retrieved oocytes. Secondary outcomes comprised intrauterine pregnancy, live birth, unfavorable pregnancy outcomes, oocyte maturation, and fertilization. Participants were categorized based on antral follicle count: Group 1 (≤3 AFC) and Group 2 (4 to 10 AFC).
Results: In participants with usual responses, 72.5% had 4-10 AFC, while poor responders had ≤3 AFC in 27.5% of cases. Poor responders exhibited higher mean ages, lower mean AMH, and higher mean IGF-1 levels. However, poor responders and normal responders showed similar mean FSH levels. Female age positively correlated with FSH and IGF-1, while negatively correlating with AMH. The study also indicated negative correlations between female AMH, FSH, and IGF-1, along with a positive correlation between IGF-1 and FSH.
Conclusion: The findings suggest that FSH, AMH, and IGF-1 readings in fertility-assessed women can serve as indicators of ovarian age and reserve. The observed correlations with age imply a diminishing ovarian function. This study contributes valuable insights into the relationship between serum IGF-1 levels, ovarian response, and aging, particularly in the context of poor ovarian responders undergoing IVF.
Antigenic markers of T. gondii for chronic forms of toxoplasmosis in fertility age women
Authors: A. AL-Fakhar Suha , M. Ali Wifaq , Hasan Mohammed Ali Saad , Ismail A Mohammed Khalil , M. Mousa Jinan , Mushtag Zahraa , Nuri Yunis Nada
Published: March 2024

Objective: This study aimed to assess the avidity of IgG antibodies against Toxoplasma gondii in fertile-aged women with a history of abortion. Using the recomLine Toxoplasma IgG Avidity kit, the research investigated the relationship between antibody avidity, T. gondii antigens (GRA1 and SAG1), and the number of abortions to enhance understanding of infection dynamics in this population.
Methods : Forty (40)fertile aged women (18-37years)  with history of abortion and had  positive results of IgG Abs by minividus form October 2021 to April 2022 ,Kit of recomLine Toxoplasma IgG Avidity form Mikrogen /Germany,item No.11010, was used ,which is a qualitative in vitro test for the determination the avidity of IgG antibodies against Toxoplasma gondii in human serum or plasma.
Results:  Phase II of toxoplasmosis was positive  of antibodies against different antigens detected by recomLine assay,  no  other significant relation was observed. Also, that there was no significant relation between the period of infection and avidity of IgG –Abs against different antigens  of T.gondii  detected by recomLine test. In addition The results showed that there was a significant relation  between of the number of abortions to GRA1-antigen (P=0.012) and SAG1-antigen (P=0.003) .
Conclusion: There was a significant relation  between of the number of abortions to GRA1 and SAG1-antigens detected by recomLine assay ,where increase in the positive results with the increase in the number of abortions.
CHARACTERIZATION OF PLIEK U FUNGUS AND CARBOHYDRATE FERMENTATION TEST
Authors: Zuraidah Zuraidah , Daniah Daniah , Suryani Suryani
Published: March 2024

Pliek u, also known as patarana, is a traditional coconut oil produced by the people of Aceh, especially in Dayah Bubue Village, Pidie. The fermented oil from pliek u is often used by the villagers to be applied to itchy skin or wounds. It is necessary to isolate and identify the characteristics of isolates from pliek u and test isolates against carbohydrate fermentation in order to know the potential of pliek u isolates which are often used as seasonings for Acehnese cuisine. The purpose of this study was to identify the characteristics of fungal colonies found in the process of making pliek u, examine the physical factors of the substrate on fungal growth, and examine the results of carbohydrate fermentation tests. Research procedures: sampling at the research site in Dayah Bubue Village, Pidie, the process of isolating fungi from pliek u, culture purification, identification, and carbohydrate fermentation tests. The results of the research at the initial stage of fermentation found Soradia sp. and Curvularia sp., the final stage of fermentation found Soradia sp. and Microascus sp., pliek u stage found Mucor sp. Fungal characters in general large colonies, irregular shapes, round colonies, flat elevations, and notched margins. Changes in temperature and pH greatly affect the presence of pliek u. The five fungal isolates reacted positively to glucose and sucrose fermentation, but did not react positively to the lactose test.
Effect of preheating temperature on the microscopic structure and mechanical performance of pulsed laser welding in sheet AZ31 alloy
Authors: Zhao Pengfei , Zhang Xiaobin , Bian Shuwang , Zhang Wenlong , Cao Zhanyi
Published: March 2024

To achieve high quality welding of an AZ31 magnesium alloy sheet, butt experiments are conducted using an Nd:YAG pulsed laser welder to weld the AZ31 magnesium alloy (1 mm). The influence of preheating temperature on the microscopic structure and mechanical performance of AZ31 magnesium alloy pulsed laser welding is studied. Experimental results show that with the rising of preheating temperature, the grain size of an equiaxed crystal in the weld center and columnar crystal at the fusion boundary (FB) first decreases and then increases and reaches the minimum values of 18.89 ± 0.45 and 32.09 ± 1.52 μm, respectively, when preheated at 200 °C. The maximum force and tensile strength increase first and decrease and reach the maximum of 2.32 kN and 193.3 MPa, respectively, when the preheating temperature is 300 °C. Above all, the welds with excellent mechanical performance can be obtained at the preheating temperature of 300 °C.
Methods of Calculation of Hazardous and Contaminating Substance Spread over the Terrain Surface
Authors:   National Research Nuclear University MEPHI, Sumskoy S.I. , Kirsanova A.M. ,   Sirius University,   STC «Industrial Safety» CJSC, Sofyin A.S. ,   STC «Industrial Safety» CJSC, Zainetdinov S.Kh. ,   STC «Industrial Safety» CJSC
Published: March 2024

The study considers and compares several methods of calculation of the process of stable liquid spread over a solid impermeable surface: the SPH method and the VOF method for the three-dimensional system of equations; the Lax-Wendroff method and the finite volume method for the two-dimensional «shallow water» system of equations. The «shallow water» systems of equations are obtained by averaging the full system of equations over depth assuming the absence of a vertical velocity component. The procedure of numerical calculation by the Lax-Wendroff method is provided in detail. The emphasis is made on considering shallow water approximation as such approximation enables obtaining a three-dimensional flow pattern in the framework of a two-dimensional model. The «shallow water» system of equations is provided taking into account the action of friction forces. All four calculation methods have been verified by using the data of a water dam breaking experiment in a 122-meter canal. The experiments recorded the dynamics of liquid propagation and water rise at different locations and moments. The comparison implies that the SPH method requires significant computational costs due to the need to specify a large number of particles in order to ensure acceptable accuracy. The VOF calculation method blurs the air-water interface, which hampers the determination of spill configuration and the free surface position. The dam breaking problem has been solved most accurately by two methods, namely the Lax-Wendroff method and the finite volume method, which has been confirmed by the quantitative assessment of error in calculations by various methods. It has been demonstrated that the shallow water approximation implemented by the Lax-Wendroff numerical method used in the study ensures accuracy sufficient to solve problems of spill over the terrain surface.
Forecasting the Injury Rate in an Organization Based on the Results of Occupational Risk Assessment
Authors:   Private organization of Federation of Independent Trade-Unions of Russia «Scientific-Research Institute for Labor Protection in Ekaterinburg», Zamigulov E.A. , Pertseva A.Yu. ,   Private organization of Federation of Independent Trade-Unions of Russia «Scientific-Research Institute for Labor Protection in Ekaterinburg», Isakov O.V. ,   Chernogorskaya Mining Company LLC
Published: March 2024

The methodology for converting the results of occupational risk assessment into forecast coefficients of injury frequency and severity is provided. The criticality of assessment of occupational risks and hazards for employees’ safety and health is accentuated. In the article, a unified methodological framework of risk assessment, including a general nomenclature of hazards, probability scales, severity of consequences of disabilities, occupational risk level classification, and a clear definition of the concept of «acceptable risk» are described. Notably, in most cases, employees question the necessity of occupational risk assessment; therefore, intuitive and motivating indices to encourage taking preventive measures to reduce and eliminate risks are required. The methodology is provided along with a step-by-step specification of the initial data and calculation formulas. It is noted that the software (1С: Labor Safety) can significantly facilitate the process of risk assessment and management. The methodology that enables the identification of prioritized risks, adjustment of risk levels, and evaluation of the efficiency of preventive measures taken, was proposed.
Havuzdere, Geyikdere, İnebeyli ve Tepeköy (Karamürsel, Yalova, Türkiye) Civarindaki Zeolitik Tüflerin Mineralojik ve Petrografik Özellikleri
Authors: Albayrak Mustafa , Kahya Asuman
Published: March 2024

Bu çalışmada, İzmit körfezinin güneyinde, Karamürsel-İzmit civarında yer alan Tepeköy, İnebeyli, Havuzdere ve Geyikdere civarındaki Alt-Orta Eosen yaşlı volkanoklastik malzemedeki, zeolitik tüflerin, mineralojik ve petrografik özellikleri, polarizan mikroskop, X-ışını difraktometre (XRD) ve SEM+EDS analiz yöntemleri kullanılarak incelenmiştir. XRD sonuçlarına göre zeolit oluşumları vitrik tüflerde gözlenmiştir. Vitrik tüflerin modal mineralojik bileşimi volkan camı (%90), kristaller (%8), opak ve FeO’leşmiş mineral (%2) olarak belirlenmiştir. Kristaller başlıca feldispat, kuvars, biyotit mineralleridir. Volkan camı yaygın olarak volkan camı kıymıkları ve matriksden oluşmaktadır. Zeolitleşme vitrik tüflerdeki volkan camlarının alterasyonu sonucu oluşmaktadır. XRD çalışmalarına göre Tepeköy, İnebeyli köyü ve Havuzdere köyü’nde zeolit minerali klinoptilolit şeklinde oluşurken Geyikdere köyü’nde ise höylandit şeklinde oluşmaktadır.
Kriptografide Rasgelelik Kavramı ve Gerçek Rasgele Sayı Üreteçlerinin Test Metodolojisi
Authors: Garıpcan Ali Murat , Erdem Ebubekir
Published: March 2024

Rasgele sayı dizileri, günümüz modern kriptografik sistemlerin kritik öneme sahip tasarım bileşenleridir. Kriptografik protokollerde gizlilik, karmaşıklık ve sürdürülebilir bir güvenlik anlayışının rasgele sayılar üzerinden tesis edildiği düşünüldüğünde, kriptografi ile rasgelelik arasında kuvvetli bir bağın oluştuğu görülebilir. Bu sayıların elde edilmesine kaynaklık eden rasgeleliğin niteliği ve matematiksel yöntemlerle garanti edilebilen nicel özellikleri, kriptografik sistemlerinin performansı üzerinde belirleyici bir öneme sahiptir. Dolayısıyla rasgele sayıların elde edildiği ve rasgele sayı üreteci (RSÜ) olarak da özelleştirilmiş uygun tasarım bileşenlerinin seçimi ve değerlendirmesi kriptografik güvenlik açısından önemli ve zorlu bir görevdir. Zira RSÜ’ nin rasgele sayılar üzerinde yol açacağı güvenlik kusurları kriptografik sistemi bütünüyle olası saldırılara karşı savunmasız bırakacaktır. Rasgele sayı dizilerinin istatistiksel özelliklerinin tanımlanması, diğer bir deyişle bu sayı dizilerinin kriptografik amaçlar için kullanılabilirliğini doğrulamak için istatistiki testler kullanılmaktadır. Bu çalışmada kriptolojik RSÜ’ ler için önemli bir değerlendirme kriteri gerçek rasgelelik kavramı ele alınmış ve bu kavramla bağlantılı istatistiki nicel gereksinimler açıklanmıştır. Bu kapsamda bias, korelasyon, entropi, ki-kare ve standart sapma olmak üzere beş farklı istatistiki test yöntemi kullanılmıştır. Çalışma içerisinde matematiksel tanımlarına yer verilen bu testler aynı zamanda FPGA tabanlı gerçek rasgele üretilmiş sayı dizilerine uygulanarak, elde edilen sonuçlar kriptografik gereksinimler doğrultusunda analiz edilmiştir. Literatürde bu maksatla kullanılan çoklu test paketlerinin yanı sıra, sunulan yöntemler ile de rasgelelik doğrulaması için geçerli ve güvenilir sonuçların elde edilebileceğini düşünmekteyiz.
Çoklu bulut teknolojisi yönetimi için web tabanlı bir araç tasarımı ve geliştirilmesi
Authors: Özyurt Hacer , Akıer Yusuf Can , Özyurt Özcan
Published: March 2024

Yazılım hizmeti sağlayıcıları, değişen ve gelişen teknoloji araçlarını takip etmekten ve geliştirici envanterlerini güncel tutmaktan sorumludur. Kuruluşlar genellikle kendi bünyelerinde değişen teknolojilere hızla adapte olabilmek için ekiplerini genişletmeyi ya da proje sürelerini uzatmayı tercih etmektedir. Fiziksel makinelerle başlayan yazılım sektörü, günümüzde sanallaştırma ve konteyner mimarisini takip etmektedir. Mikro servis mimarisinin şirketlerde yaygınlaşmasıyla birlikte konteynerler üzerinde çalışan uygulamaların sayısı ciddi oranda artmıştır. Bu durum konteynerlerin yönetilmesinde zaman, güvenlik, performans gibi sorunları da beraberinde getirmiştir. Konteyner yönetim araçlarından biri olan Kubernetes, bir komut satırı ara yüzü üzerinden haberleşerek konteynerleri yönetme imkânı sağlamaktadır. Bu çalışmada, birden fazla sektöre ve/veya işletmeye hizmet verirken hizmet olarak yazılım sağlayıcı kuruluşların değişen ihtiyaçlarına göre zaman ve ekip maliyeti konularını en aza indirmeyi hedefleyen bir yönetim aracının tasarlanması ve geliştirilmesi amaçlanmıştır. Bu doğrultuda Kubernetes kümeleme, bulut ortamında sanallaştırma ve çoklu bulut tabanlı bir mimaride geliştiricilerin altyapılarını yönetebilecekleri bir web uygulaması geliştirilmiştir. Kullanıcıların ilgili bulut sağlayıcılarından aldıkları erişim anahtarları ile uygulamaya giriş yapabilecekleri ve altyapılarını yönetebilecekleri kullanıcı dostu bir ara yüz tasarlanmıştır. Bu ara yüz ile son kullanıcıların ve geliştiricilerin istedikleri teknolojinin altyapı araçlarını hızlı bir şekilde yönetebildikleri ve basit bir dokümantasyon yöntemi ile birden fazla teknoloji arasında geçiş yapmakta zorlanmadıkları gözlemlenmiştir. Geliştirilen aracın bu alandaki araştırmalara örnek teşkil etmesi beklenmektedir.
DAIRESEL ÖN DUVAR KESITLI SALINIMLI SU SÜTUNU TIPI ENERJI DÖNÜŞTÜRÜCÜDE VERIM ARTIŞI
Authors: Çelik Anıl
Published: March 2024

Dalga enerji dönüştürücüler içinde salınımlı su sütunu (SSS) öne çıkmaktadır. Klasik SSS yapısı ön duvar giriş ağzı köşeli olup dalga akımının SSS haznesine giriş çıkışlarında akış ayrılmasına ve dolayısı ile çevrinti ve girdap oluşumuna sebebiyet vermektedir. Bu da absorbe edilen gelen dalga enerjisinin kısıtlı miktarda kalmasına sebebiyet vermektedir. Bu çalışmada SSS hazne ön duvarı giriş ağzı için dairesel kesit önerilmiştir. Değişik miktarlardaki güç alma mekanizması sönümleme seviyeleri (orifis kullanılarak simüle edilmiştir) için fiziksel deneyler icra edilmiş, hem klasik SSS yapısı hem de dairesel duvar giriş ağzı ön kesitine sahip hazne verimleri hesaplanmış ve karşılaştırılmıştır. Her bir orifis oranı (güç alma yapısı sönümleme oranı) için dairesel kesitli ön duvar ağzına sahip olan yapının verimliliği artış göstermiştir. Maksimum verim artışı, en düşük sönümleme (en yüksek orifis çapı) miktarı için 21.1% olarak gerçekleşmiştir. SSS hazne ön duvarı akış ayrılması sonucunda oluşacak yüksek kayma gerilmelerine de maruz kalmaktadır. Ön duvar altının dairesel kesit olması durumunda gerçekleşmeyecek veya kısıtlı oluşacak kayma gerilmeleri ile yapı ön duvarının yıpranması azaltılacak ve bu suretle SSS yapı ömrü uzayacaktır.
Microbial Biotechnology: A Key Tool for Addressing Climate Change and Food Insecurity
Authors: Malkawi Hanan Issa , Kapiel Tarek Yehia Soliman
Published: March 2024

Amidst escalating climate change and food insecurity concerns, exploring the potential of microbes offers a promising and sustainable solution. This review delves into the complex interplay between microbial communities and the dual challenge of environmental crisis and food security.

Ubiquitous microorganisms – from bacteria to fungi and archaea – shape our planet's ecosystems, playing a crucial role in soil health, nutrient cycling, and plant-microbe interactions. This review dissects diverse microbial habitats, highlighting their remarkable adaptability to varied environments.

It then underscores the reciprocal impacts of human-induced environmental changes on microbes and their habitats. Addressing these challenges, the review presents microbes as powerful allies in mitigating climate change. Their ability to sequester carbon, reduce greenhouse gas emissions, and enhance soil fertility is explored. Innovations like biofertilizers and biopesticides demonstrate the potential of microbial technologies to revolutionize agriculture and ensure global food security.

Concluding, the review emphasizes the symbiotic link between microbes and sustainable food production. Microbial technologies can adapt agriculture to changing climate conditions, addressing water scarcity and enhancing soil moisture retention. Their potential to boost productivity in both traditional and precision agriculture under diverse climatic conditions is highlighted.

This review calls for the urgent recognition and harnessing of microbial power for a sustainable future. Embracing microbial technologies not only fosters environmental stewardship but also paves the way for a resilient and resource-efficient agricultural future.
Biological characteristics of crustaceans Artemia sp. from the diverse hypergaline reservoirs of the Kulunda Plain
Authors: Vesnina Lyubov Viktorovna , Romanova Natalia Stanislavovna , Lassyy Mihail Vladimirovich , Vesnin Yuri Alexandrovich , Bezmaternyh Dmitriy Mihaylovich
Published: March 2024

For the first time, biometric parameters of cysts and nauplii from populations of hypergaline lakes Bol’shoe Shklo and Malinovoe, and incubation features of cysts from populations of lakes Bol’shoe Shklo, Malinovoe, Maloe Yarovoe, Kulundinskoye, Kuchukskoye were determined. Significant inter-population differences in the biometric characteristics of Artemia sp. were revealed in all the lakes studied. The variability of the biometric parameters

of nauplii and artemia cysts is due to the physical and chemical differences in the living conditions of each studied population discovered during the study. The average values of cyst diameter and linear sizes of nauplii (Instar I) of the studied five populations were in the range of 237.4 ± 11.8 – 250.6 ± 14.3 microns, 412.9 ± 27.4 – 463.3 ± 24.6 microns, respectively. The smallest cysts were found in lake Bol’shoe Shklo and lake Malinovoe. The smallest nauplii were derived from the cysts of the population living in lake Bol’shoe Shklo. A high positive correlation was established between the sizes of cysts and nauplii of the studied artemia populations. Experiments to study the effect of the concentration of dietary salt (98.4% NaCl) on the hatchability of nauplii have shown that for populations of artemia from lakes Malinovoe, Kulundinskoye and Kuchukskoye environments with concentrations of 25 g/l were the most favorable for breeding nauplii, while lake Maloe Yarovoe had concentrations of 10 and 25 g/l. Cysts from lake Bol’shoe Shklo population showed identical excretion in all studied salt concentrations. The optimal environmental parameters for breeding nauplii vary depending on the origin of the population. The differences in the hatchability conditions of artemia nauplii should be taken into account during the experiments and especially for the successful incubation and cultivation of artemia in fish farms.
AI-powered COVID-19 forecasting: a comprehensive comparison of advanced deep learning methods
Authors: Tariq Muhammad Usman , Ismail Shuhaida Binti
Published: March 2024

Objectives: The coronavirus disease 2019 (COVID-19) pandemic continues to pose significant challenges to the public health sector, including that of the United Arab Emirates (UAE). The objective of this study was to assess the efficiency and accuracy of various deep-learning models in forecasting COVID-19 cases within the UAE, thereby aiding the nation’s public health authorities in informed decision-making.Methods: This study utilized a comprehensive dataset encompassing confirmed COVID-19 cases, demographic statistics, and socioeconomic indicators. Several advanced deep learning models, including long short-term memory (LSTM), bidirectional LSTM, convolutional neural network (CNN), CNN-LSTM, multilayer perceptron, and recurrent neural network (RNN) models, were trained and evaluated. Bayesian optimization was also implemented to fine-tune these models.Results: The evaluation framework revealed that each model exhibited different levels of predictive accuracy and precision. Specifically, the RNN model outperformed the other architectures even without optimization. Comprehensive predictive and perspective analytics were conducted to scrutinize the COVID-19 dataset.Conclusion: This study transcends academic boundaries by offering critical insights that enable public health authorities in the UAE to deploy targeted data-driven interventions. The RNN model, which was identified as the most reliable and accurate for this specific context, can significantly influence public health decisions. Moreover, the broader implications of this research validate the capability of deep learning techniques in handling complex datasets, thus offering the transformative potential for predictive accuracy in the public health and healthcare sectors.
The importance of syndicated loans for companies
Authors: Efremov V. A. , Tropina Zh. N.
Published: March 2024

The article examines the specifics of the Russian and foreign syndicated lending market as a significant source of financial resources for companies implementing large+scale projects, examines the problems in the field of syndications that arose with the imposition of sanctions against Russian banks and companies. The author gives an assessment of the level of importance of this type of lending for companies, and compares it with alternative methods of raising capital. The article addresses issues related to the need to improve the legislative regulation of syndicated lending in the Russian market. The prospects for the development of this type of lending in the Russian market are determined.
Juridicial Review of Diversion Application Against Theft by Children
Authors: Fachri Muh Ashar , Erlina  , Amiruddin Muh.
Published: March 2024

In juvenile criminal law, children are also involved in criminal acts. Children under 10 are usually not punished, while children aged 10-16 can be punished. However, in the enforcement of punishment for children, it is important to pay attention to their stage of development. The method in this study is normative way. The result showed that is is reflected in Law No. 11 of 2012 concerning the juvenile criminal justice system, where diversion is used as an alternative to settlement outside of Justice. However, in certain cases such a number: 10/Pid.Sus.Child/2020 / Fr. Sgm, diversion is not applied because it only applies to child offenders who first make mistakes. In this case, the offender has committed a repeated criminal offense, so the judge decides to give a criminal sentence.