bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimated efficiency of uterine cavity suturing in patients during organ-preserving surgery with placenta increta while examining reproductive function in the postpartum period
Authors: Berg E. A. , Yashchuk A. G. , Musin I. I. , Fatkullina Yu. N. 
Published: October 2021

Aim: to assess the reproductive function of patients who underwent organ-preserving delivery using a modified method of uterine cavity suturing placenta increta.Materials and Methods. There were retrospectively investigated 77 history cases of patients admitted for planned delivery in 2018–2020, subdivided into two groups: Group 1 (control) – 32 patients with uterine scar after previous cesarean section, Group 2 (main) – 45 patients diagnosed with placenta increta further assigned to 2 subgroups – 2A (n = 23) underwent a modified uterine cavity suturing, and subgroup 2B (n = 22) where a linear suturing was used.Results. The groups studied were comparable on anthropometric data and reproductive history. The ultrasound examination of the uterus size 6 months later revealed more prominent changes in main group that might be due to larger volume of excised uterine tissue during surgery. Significant differences in subgroup 2A (uterus length – 54 [48; 62] mm, uterus width – 38 [29; 47] mm; p = 0.036 and p = 0.024, respectively) and subgroup 2B (uterus length – 51 [42; 60] mm, uterus width – 30 [24; 44] mm; p = 0.003 and p < 0.001) vs. control group (uterus length – 60 [55; 66] mm, uterus width – 48 [42; 54] mm) were observed. Magnitude of change in size and shape of the uterus were found in subgroup 2A vs. 2B (p = 0.022 for uterus length, p = 0.004 for uterus width). Examining intrauterine blood flow revealed no significant differences between the groups compared (p > 0.1).Conclusion. Assessing results of the applied new method for uterine cavity suturing in patients with placenta increta showed a marked efficiency in maintaining anatomically most natural shape of the uterus and uterine cavity. Despite the results obtained, the problem of restoring female reproductive function after organ-preserving delivery remains a pressing issue relevant and requires to be further investigated.
Uncommon case of the acral melanoma with chondro-osseous metaplasia
Authors: Bychkova E. Yu. , Grigoruk Olga G. , Kuratov D. O. , Afanasieva E. A. , Bazulina L. M. , Bykova N. A. 
Published: October 2021

Aim. This study aimed to improve the diagnostics of acral melanoma and investigate tumor morphological features of the chondroid and osseous matrix.
Materials and methods. The article presents a clinical case of metastatic acral melanoma with chondroid and osseous metaplasia in a 60-year-old patient. Cytological, histologic, immunohistochemical, and molecular genetic studies were performed.
Results. A conglomerate of lymph nodes was noted in the inguinal region of the patient. Oxyphilic chondroid masses and tumor cells with morphological features of sarcoma were revealed using thin-needle aspiration biopsy. On physical examination, pink-colored subcutaneous neoplasm was discovered in the skin of the heel. Histological examination of the primary neoplasm and inguinal lymph node was performed. Melanoma with chondro-osseous metaplasia was diagnosed. Immunohistochemical examination of the tumor revealed some pronounced diffuse expressions of S-100 protein, HMB-45, and focal expression of Melan A in tumor cells. The sample was tested to detect BRAF mutation, and no mutations were found.
Conclusion. Morphological diagnostics of acral melanoma with chondro-osseous metaplasia is characterized by a high risk of diagnostic error. Therefore, additional immunohistological, molecular, and genetic studies should be used in the diagnostics of acral melanoma with chondro-osseous metaplasia.
El direccionamiento estratégico como herramienta para la generación de ventajas competitivas en el sector de las PYME: Análisis para el sector turismo
Authors: Lora Guzmán Harold , Cardona Arbelaez Diego Alonso , Brito Carrillo Clara 
Published: October 2021

Introducción: El desarrollo económico y social en los países de América latina, esta soportado en gran parte por las actividades asociadas al turismo y al sector de las pequeñas y medianas empresas. En este sector, y dadas la necesidad de reactivación económica en la nueva normalidad generada por la pandemia de COVID -19 se han generado una variedad de estudios e investigaciones para identificar los aspectos que determinen su competitividad a nivel regional, departamental y nacional. Objetivo: Este artículo proveniente de una investigación en curso busca establecer la conexión existente entre el éxito competitivo y el diagnostico organizacional basado en los factores internos y externos que pueden facilitar o dificultar la consecución de los objetivos estratégicos en las Pequeñas y Medianas Empresas en el sector turismo (recursos humanos, planeación estratégica, innovación, tecnología y certificación de calidad), a través de un caso de estudio para una PYME del sector. Metodología: utilizada se basó en la construcción, desarrollo y aplicación de las matrices y planteamiento estratégico esbozados por F. Davis; trabajo de campo y análisis de datos; determinación de resultados y conclusiones del estudio. Resultados: presentan fortalezas y debilidades en aspectos tales como planeación estratégica, la innovación y la tecnología. El estudio aporta un análisis empírico al sector en estudio, en factores considerados determinantes para la creación de ventajas competitivas. Conclusiones: Se concluye que las PYMES con mayor perfil competitivo tienen como característica propender por la innovación de sus productos y servicios, proceso y procedimientos, utilizan metodologías y herramientas para el direccionamiento estratégico y poseen un nivel tecnológico superior
Health promotion practices and coping behaviors among caregivers of children suffering from thalassemia major
Authors: Das Karobi , Abhilasha  , Thakur Ankita , Deepika  , Isha  , Kaur Navjot , Pratibha  , Sharma Renu , Trehan Amita 
Published: October 2021

According to the Global Health Organisation thalassemia is the most prevalent genetic disorder which immensely affect the life of about 100,000 infants in over 60 countries. In India, thalassemia major is also the most prevalent genetic disorder. As indicated by the national statistics report, 22,000 patients of thalassemia major exist in our country. Thalassemia major is a chronic disease which has a long treatment regimen thus putting the affected children and their caregivers through a variety of challenges both physically and mentally. To assess the health promotion practices and coping behaviors among parents/caregivers of children suffering from Thalassemia Major.A descriptive study was conducted in the thalassemia clinic, APC, PGIMER, Chandigarh. Data was collected from 70 parents of thalassemic children with age group of 4 to 17 years on Socio Demographic Profile, clinical profile, Coping Health Inventory of Parents (CHIP) and Health Promotion Practices (HPP). The study showed that 51.9% caregivers of thalassemic children reported that they considered the items enlisted in CHIP to be moderately helpful, 45.2% reported them to be extremely helpful while according to 2.9% of the subjects, they were minimally helpful. All the subjects were in the “always” level of the HPP i.e. caregivers were following health promotion practices. This study also revealed that majority of parents (61%) did not receive any genetic counselling during their first pregnancy. The study concluded the association between major study variables like Health Promotion practices (HPP) and Coping Health Inventory Of Parents (CHIP) analysed by Pearson correlation. The results revealed that there was low positive correlation between HPP and CHIP i.e. +0.078.
Prediction of spark ignition engine performance responses fueled with fusel oil/gasoline blends by artificial neural network
Authors: USLU Samet , ŞİMŞEK Süleyman 
Published: October 2021

In the present study, the performance parameters of a single-cylinder, air-cooled spark ignition (SI) engine using fusel oil-gasoline fuel blends were predicted by artificial neural network (ANN). The SI engine was operated with gasoline/fusel oil (10% and 20%) blends at different engine load (1000, 2000, 3000, 4000, 5000, 6000, 7000 and 8000 Watt) and compression ratios (8.00, 9.12 and 10.07) to obtain data essential to create the ANN model. In the constructed ANN model, brake thermal efficiency (BTE) and brake specific fuel consumption (BSFC) are chosen as output parameters, while engine load, compression ratio (CR) and fusel oil ratio are chosen as input factors. 75% of the test results were employed to train the ANN. The performance of ANN model was determined by comparing it with the data produced from the part not used for training. According to the found data, ANN model estimated engine performance parameters such as BTE and BSFC by an overall regression coefficient (R) at 0.99384. Simultaneously, mean absolute percentage error (MAPE) were found as 5.027% and 7.847% for BTE and BSFC, respectively. When ANN results and experimental results are compared for BTE and BSFC responses, it is determined that ANN results are close to experimental results with an error rate of less than 5%.
A Simple Algorithm for Finding a Non-negative Basic Solution of a System of Linear Algebraic Equations
Authors: Stepanov Gleb D. 
Published: October 2021

This article describes an algorithm for obtaining a non-negative basic solution of a system of linear algebraic equations. This problem, which undoubtedly has an independent interest, in particular, is the most time-consuming part of the famous simplex method for solving linear programming problems.Unlike the artificial basis Orden’s method used in the classical simplex method, the proposed algorithm does not attract artificial variables and economically consumes computational resources.The algorithm consists of two stages, each of which is based on Gaussian exceptions. The first stage coincides with the main part of the Gaussian complete exclusion method, in which the matrix of the system is reduced to the form with an identity submatrix. The second stage is an iterative cycle, at each of the iterations of which, according to some rules, a resolving element is selected, and then a Gaussian elimination step is performed, preserving the matrix structure obtained at the first stage. The cycle ends either when the absence of non-negative solutions is established, or when one of them is found.Two rules for choosing a resolving element are given. The more primitive of them allows for ambiguity of choice and does not exclude looping (but in very rare cases). Use of the second rule ensures that there is no looping.
​​Screening Cowpea Genotypes for Resistance to Cowpea Aphid Borne Mosaic Virus (CABMV) and Cowpea Severe Mosaic Virus (CPSMV) in Paraguay
Authors: Alonso Guillermo , Duarte Pablo , Camelo-García Viviana M. , Esquivel-Fariña Arnaldo , Kitajima Elliot W. , Rezende Jorge A.M. , González-Segnana Luis R. 
Published: October 2021

Background: Cowpea [Vigna unguiculata (L) Walp.] is one of the Paraguayan rural families’ main crops, serving as an essential protein and carbohydrate source. Cowpea aphid borne mosaic virus (CABMV) and cowpea severe mosaic virus (CPSMV) were identified infecting cowpea plants. Disease control caused by both viruses is difficult because there is no information about local cowpea resistant cultivars and vector control is not practical. Methods: In the present work, sixteen cowpea genotypes/cultivars were mechanically inoculated with local isolates of CABMV and CPSMV to identify resistant genotypes/cultivars that can be used in breeding programs. Virus infections were determined by symptoms expression and confirmed by PTA-ELISA. Result: Genotypes Arroz rojo (V. angularis), TVu 379, TVu 382, TE94-256-2E and TE97-309G-9 were resistant to CABMV. Genotypes Arroz rojo (V. angularis), CNCX-698-128F, TVu 379, TVu 382, TVu-3961, TE97-309G-9 and TE97-309G-3 were resistant to CPSMV. Overall, this study showed that local cowpea cultivars do not offer any resistance to virus infection and the need for resistant germplasms for cowpea breeding programs in the country.
Effect of Integrated Weed Management Practices on Weed Dynamics and Performance of Maize Crop
Authors: Singh Arshdeep , Sarkar Shimpy , Bishnoi Ujjwal , Kundu Tannu , Nanda Ritasha , Robertson Ayekpam , Mor Manjeet 
Published: October 2021

Background: Maize is the third most important cereal in India after rice and wheat which contributes nearly 9% in national food basket. Weed infestation is a major problem in maize, primarily at initial growth stages and due to wider spacing, hence weed control is essential to reduce the competition with maize crop. In maize row to row spacing is more so maximum number of weeds appears and compete with main crop. Methods: A field experiment was conducted in the University Agricultural Farm under the Department of Agronomy in kharif 2019. The soil of the experimental field was sandy loam in texture having pH 6.87 and electrical conductivity 0.32 mmhos/cm. The experiment was comprised of eight treatments and laid out in randomized block design with three replications T0 (Control), T1 (Hand weeding at 20 DAS, 40 DAS), T2 (Atrazine 1 kg/ha after 3 days of sowing), T3 (Metribuzin 1 kg/ha after 3 days of sowing), T4 (Alachlor 1.5 kg/ha after 3 days of sowing), T5 (Atrazine + hand weeding 1 kg/ha (after 3 days and 30 days after sowing), T6 (Metribuzin + hand weeding 1 kg/ha (after 3 days and 30 days after sowing), T7 (Alachlor + hand weeding 1.5 kg/ha (after 3 days and 30 days after sowing). The texture of the experimental field soil was sandy loam having pH-6.87, EC-0.32 mmhos/cm. Result: The weed species recorded at the experimental site were mainly comprised with grasses, sedges and broadleaf weeds. The dominant weed species infested in the experimental field were: Cynodon dactylon (doob grass), Cyperus rotundus, Amaranthus viridis, Anagallis arvensis, Argemone mexicana, Chenopodium album, Parthenium hysterophorus and Trianthema prolacastrum. Significant reduction in the weed density was recorded in manual weeding. The highest plant height, stem girth, number of leaves, flag leaf length, chlorophyll content, leaf area index, grain yield and stover yield was recorded highest with hand weeding which was followed by T7 (Alachlor + hand weeding 1.5 kg/ha (after 3 days and 30 days after sowing).
La gestion de la surface foliaire affecte la teneur en azote des raisins
Authors: Verdenal Thibaut , Zufferey Vivian , Huberty Mélanie , Melot Claire , Dienes-Nagy Ágnes , Spring Jean-Laurent 
Published: October 2021

La teneur en azote du moût à la vendange joue un rôle déterminant dans la cinétique de fermentation alcoolique et dans la formation des arômes du vin, particulièrement dans le cas des vins blancs. Au cours des dernières décennies, les pratiques viticoles ont considérablement évolué vers moins d’herbicides et davantage d’enherbement. Dans ce contexte, des carences azotées du moût sont apparues de façon récurrente dans certains vignobles. Comment pouvons-nous adapter nos pratiques culturales à ce contexte de concurrence pour l’azote ?
Combined Toxicity and Toxicity Persistence of Antidepressants Citalopram and Mirtazapine to Zooplankton Daphnia Magna
Authors: Ma Yunfeng , Xu Dong , Li Chenyang , Wei Shu , Guo Ruixin , Li Yang , Chen Jianqiu , Liu Yanhua 
Published: October 2021

Abstract
Citalopram (CTP) and mirtazapine (MTP) are two typical psychoactive drugs used for the depression treatment. As emerging pollutants, CTP and MTP has been given widely concern because they are active substances for organisms. Therefore, the ecotoxicological risks of aquatic organisms should be paid more attention to. In this study, the effects of CTP and MTP on the feeding behavior, heartbeat, nutritional enzymes and related gene transcriptions of Daphnia magna were investigated under single and mixed environmental stress. Meanwhile, the recovery of exposed D. magna was studied to analyze the toxic persistence of those pollutants. After 24-hexposure, the ingestion rate decreased by 34.2% and 21.5%, in the group of C-H and Mix-H respectively. After 24-h recovery, the feeding behavior of D. magna was stimulated by compensatory stimulation. In exposure period, the heartbeat rate of D. magna increased by 132.3%, 69%, 111.9%, 139.4%, and 92.4%, in the group of C-L, C-H, M-L, M-H and Mix-L respectively, and was recovered during the recovery period. The activity of α-amylase (AMS) and trypsin were significantly changed in most of the exposed daphnia, both in the exposure period and recovery period. CTP/MTP exposure stimulated transcription of the α-amylase gene. M-H and Mix-H exposure inhibited transcription of the trypsin gene and other stimulated transcriptions. After 24-h recovery, the stimulative or inhibitory effects were alleviated. There were different responses between gene transcription and enzyme activity. In conclusion, our results highlighted the toxic effects of single and mixed pollution of CTP and MTP on feeding, heartbeat, enzymes and genes of D. magna.
Integrative Analysis of Transcriptomics and Metabolomics to Reveal the Melanogenesis Pathway of Muscle and Related Meat Characters in Wuliangshan Black-Boned Chickens
Authors: Dou Tengfei , Yan Shixiong , Liu Lixian , Wang Kun , Jian Zonghui , Xu Zhiqiang , Zhao Jingying , Wang Qiuting , Sun Shuai , Talpur Mir Zulqarnain , Duan Xiaohua , Gu Dahai , He Yang , Du Yanli , Abdulwahid Alsoufi Mohammed , Li Qihua , Rong Hua , Cao Weina , Su Zhengchang , Zhao Guiping , Liu Ranran , Zhao Sumei , Huang Ying , Pas Marinus F.W. te , Ge Changrong , Jia Junjing 
Published: October 2021

Abstract
Background: Melanin is an important antioxidant in food, and has been used in medicine and cosmetology. Chicken meat with high melanin content from black-boned chickens have been considered a high nutritious food with potential medicinal properties. The molecular mechanism of melanogenesis of skeletal muscle in black-boned chickens remain poorly understood. This study investigated the biological gene-metabolite associations regulating the muscle melanogenesis pathways in Wuliangshan black-boned chickens with two normal boned chicken breeds as control.Results: We identified 25 differentially expressed genes and 11 transcription factors in the melanogenesis pathways. High levels of the meat flavor compounds inosine monophosphate, hypoxanthine, lysophospholipid, hydroxyoctadecadienoic acid, and nicotinamide mononucleotide were found in Wuliangshan black-boned chickens.Conclusion: Integrative analysis of transcriptomics and metabolomics revealed the dual physiological functions of the PDZK1 gene, involved in pigmentation and/or melanogenesis and regulating the phospholipid signaling processes in muscle of black boned chickens.
A Photometric Study of Regolith Intimate Mixing with Ice-Like Impurity
Authors: Deb Dwaipayan , Chakraborty Pavan 
Published: October 2021

Abstract
Surfaces of solid solar system objects are covered by layers of particulate materials called regolith originated from their surface bedrock. They preserve important information about surface geological processes. Often regolith is composed of more than one type of particle in terms of composition, maturity, size, etc. Experiments and theoretical works are being carried out to constrain the result of mixing and extract the abundance of compositional end-members from regolith spectra. In this work we have studied, photometric light scattering from simulated surfaces made of two different materials – one is highly bright quartz particles ≈ 80µm and the other moderately bright sandstone particles ≈ 250µm. The samples were mixed with varying proportions and investigated at normal illumination conditions to avoid the shadowing effect. Said combinations may resemble ice mixed regolith on various solar system objects and therefore important for in situ observations. We find that the combinations show a linear trend in the corresponding reflectance data in terms of their mixing proportion and some interesting facts come out when compared to previous studies.
Response of soil biological properties and bacterial diversity to different levels of nitrogen application in sugarcane fields
Authors: Yang Shangdong , Xiao Jian , Liang Tian , He Weizhong , Tan Hongwei 
Published: October 2021

Abstract
Field experiments were performed in early March 2019 at the farm of the Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences. Four concentrations of nitrogen application were employed as follows: that is, urea applications 964, 482, 96, 0 kg ha− 1, respectively. And 300 kg ha− 1 calcium, magnesium, and phosphorus were likewise applied in 4 different treatments. The results showed that the soil microbial biomass carbon and phosphorus were altered significantly by non- and low-nitrogen input. Moreover, the indexes of soil bacterial richness and diversity in the sugarcane field could be significantly improved, even by low nitrogen input. At the genus level, norank_f__SC-I-84, Mycobacterium, norank_f__Micropepsaceae, norank_f__norank_o__Saccharimonadales, norank_f__norank_o__Subgroup_2 and norank_f__Acetobacteraceae were the unique dominant bacteria in the soil with the high nitrogen input treatment. norank_f__JG30-KF-CM45 and Jatrophihabitans were the unique dominant genera in the moderate nitrogen input treatment. norank_f__norank_o__norank_c__Subgroup_6, HSB_OF53-F07, Streptomyces, norank_f__67 − 14, norank_f__norank_o__SBR1031 and norank_f__norank_o__norank_c__KD4-96 were the unique dominant genera in the low nitrogen input treatment. In contrast, FCPS473, Actinospica, 1921-2, Sinomonas, and norank_f__Ktedonobacteraceae were the unique dominant genera in CK (no nitrogen application treatment). It suggested that low nitrogen input was the most significant effect on the soil microbial biomass carbon and phosphorus in the sugarcane field. Moreover, low nitrogen input also can improve the diversity and richness of sugarcane soil bacteria. The dominant bacterial genera of low nitrogen input and the other treatments were different for the compositions of dominant bacteria, and the largest abundance difference of dominant bacterial genera was norank_f__norank_o__norank_c__Subgroup_6. However, whether low nitrogen stress can improve the yield and quality of sugarcane warrants further research.