bluuebunny/crossref_metadata_2025_split huggingface dataset:
Évaluation des caractéristiques fonctionnelles et rhéologiques des farines d'igname pilée instantanées (Dioscorea rotundata) obtenues à partir des tubercules des cultivars utilisés comme parents dans un programme de sélection au Bénin
Authors: Fakorede Jeannette , Badoussi Marius Eric , Loko Yêyinou Laura Estelle , Sanoussi Faouziath , Dassou Gbèblonoudo Anicet , Tchekessi Célestin , Yahou Innocent Bokossa , Dansi Anagonou Alexandre 
Published: August 2021

Description du sujet. En Afrique de l’Ouest, les tubercules d’igname sont principalement consommés sous forme pilée. Cependant, vu la forte périssabilité des tubercules frais, la consommation de l’igname pilée tout le long de l’année est une préoccupation majeure. La transformation des tubercules en produits stables tels que la farine instantanée et pouvant donner une pâte ayant des caractéristiques similaires à celles de l’igname pilée est devenue une priorité. Objectifs. Évaluer les propriétés fonctionnelles et rhéologiques des farines d’igname pilée instantanées (InstAgoun) produites à partir de 48 cultivars utilisés comme parents dans un programme de sélection sur les ignames au Bénin. Méthode. Les farines issues des 48 cultivars d’igname ont été caractérisées par rapport à leur couleur et leurs propriétés fonctionnelles et rhéologiques en utilisant des méthodes standardisées. Résultats. Les résultats ont montré que le rendement de production en farine (14,7–27,9 %), la couleur (L* : 70,1–83,9 ; a* : -1,2—1,6 ; b* : 0,8–13,6), la solubilité (6,4–11,9 %), la viscosité au pic (1 048–4 376 cPs), la viscosité finale (1 568–6 251 cPs), la viscosité de maintien (875–4 004 cPs), la rupture de viscosité (14–592 cPs), le recul de viscosité (395–2 418 cPs), le temps au pic de viscosité (5–8 min) et la température de gélatinisation de l’amidon (73–93 °C) des farines produites ont varié significativement en fonction des cultivars d’igname. Cependant, aucune différence significative n’a été observée au niveau du pouvoir de gonflement des farines dérivées des différents cultivars qui a varié de 3,2 à 5,1 g·g-1. Au regard des caractéristiques fonctionnelles et rhéologiques, huit cultivars prometteurs (Singor, Parayobou, Agbaobé, Portchahabim, Tarayè, Tchée, Anklouman, Kpagninan) ont été identifiés comme les plus aptes à la production de la farine d’igname pilée instantanée. Conclusions. Une introduction effective de ces huit cultivars prometteurs dans des programmes d’amélioration variétale pourrait permettre de générer des variétés qui répondront aux exigences de qualité des différents acteurs, à savoir les producteurs, les transformateurs et les consommateurs pour l’amélioration de la chaine de valeur de l’igname en République du Bénin
Critical period of weeds interference in pineapple (Ananas comosus [L.] Merr.) crops
Authors: Oliveira Silvana Pimentel de , Santos Jefferson Costa , Leite Bruna Nogueira , Santos Géssica Aline Nogueira dos , Silva José Ferreira da 
Published: August 2021

Description of the subject. In crop-weed competition, some periods are critical because they may interfere with the crop production capacity. Therefore, knowing these periods is crucial when deciding on the best time for control and preparation of the Integrated Management Program. Objectives. To determine the Period Prior to Interference, Total Period for Interference Prevention, and the Critical Interference Period in pineapple cultivation. Method. The experimental design consisted of randomized blocks in 2 x 15 factorial arrangement, four replications, and two management systems: weeds control and crop-weeds coexistence; 15 increasing periods of 30 days each after planting: 0, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, 360, 390, 420. In the control treatments, since planting, manual weeding (with hoe) and mechanical weeding (with brush cutter) were done during increasing periods of time, and in the coexistence treatments, the weeds lived together with pineapple plants and, at the end of each period, weeds control was made with mechanical and chemical weeding. Results. The best yields were achieved in the periods of less coexistence with weeds. The critical periods for interference prevention with 5 and 10% of yield losses were 259 and 204 days, respectively. Conclusions. The critical period for interference prevention lasted 14-259 days after planting of the pineapple offsets.
Phénologie de Cola millenii K.Schum. au Bénin
Authors: Lawin Iboukoun Fidèle , Salako Kolawolé Valère , Fandohan Adandé Belarmain , Assogbadjo Achille Ephrem , Ouinsavi Christine Adjokè Ifètayo Nougbodé 
Published: August 2021

Description du sujet. La compréhension des facteurs influençant les phénophases des plantes d’importance socio-économique est essentielle pour leur gestion durable. Cola millenii est un arbre dont les fruits sont comestibles. Objectifs. La présente étude a analysé les différentes phénophases de l’espèce le long d’un gradient climatique au Bénin. Méthode. Les évènements de feuillaison, floraison et fructification ont été observés au milieu et à la fin de chaque mois (environ chaque 15 jours) durant deux ans dans huit phytodistricts distribués entre la zone guinéenne et la zone soudano-guinéenne du Bénin. Résultats. Dans les deux zones climatiques, C. millenii porte des feuilles toute l’année, mais l’intensité de la feuillaison varie au cours de l’année. On observe une forte chute de feuilles de janvier à mars. Cola millenii fleurit d’octobre à avril (saison sèche). Un décalage d’un mois a été observé dans le phytodistrict du Borgou-Sud où la floraison a démarré en novembre. Le pic de la floraison a été constaté en décembre. La fructification s’étend de novembre (nouaison) à juillet (saison sèche à mi-saison pluvieuse). Un décalage d’un mois a été également observé dans le phytodistrict du Borgou-Sud où la fructification a démarré en décembre. Le pic de fructification a été observé dans la période de février à juillet. Les fruits murissent de façon progressive dans cette période. La floraison et la fructification sont positivement corrélées avec la température maximale et négativement avec l’humidité relative de l’air. De même, la floraison est négativement corrélée avec la pluviométrie. Conclusions. Cette étude fournit des informations importantes pour une gestion durable de l’espèce dans les régions climatiques où elle est rencontrée.
Широкосмугова антена у вигляді відрізка коаксіального хвилеводу
Authors: Каращук Наталія Миколаївна , Манойлов В’ячеслав Пилипович , Мартинчук Петро Петрович , Терех Катерина Сергіївна 
Published: August 2021

Антена у вигляді відкритого відрізка коаксіального хвилеводу в режимі хвилі типу широко використовується як самостійний випромінювач. Особливістю такої антени є її погане узгодження з вільним простором. Для покращення узгодження антени у вигляді відрізка коаксіального хвилеводу застосовано діелектричний чвертьхвильовий трансформатор. Отримано формули (1)–(5) для розрахунку параметрів діелектричного чвертьхвильового трансформатора та представлено експериментальні дані, які підтверджують розрахунки. А саме: активної (1) та реактивної (2) зовнішніх провідностей відкритого кінця коаксіальної лінії; коефіцієнта відбиття хвилі в коаксіальній лінії (4) і коефіцієнта корисної дії (5). У таблиці 1 наведено значення результатів розрахунків геометричних розмірів та місця включення виготовлених зразків діелектричних чвертьхвильових трансформаторів, що підтверджені експериментально. Наведено розраховані та експериментально зняті графіки зміни коефіцієнта стоячої хвилі за напругою (КСХН) у смузі частот для різних типів діелектричних чвертьхвильових трансформаторів та діаграм спрямованості антени різних розмірів.
Pengaruh Makroekonomi dan Indeks Global terhadap Indeks Harga Saham Gabungan Selama Pandemi COVID-19 di Indonesia
Authors: Artha Algia , Paramita R.A. Sista 
Published: August 2021

The COVID-19 pandemic has affected many sectors, one of which is the capital market. The Coronavirus has claimed lives and can shake the order of life of a country. From an economic point of view, almost all countries experience a recession, a reduction in economic activity, increased unemployment, and a decline in people's purchasing power. This research examines the effect of the BI interest rate, exchange rate, inflation, SSEC index, KLSE index, SET index, and DJIA index on the Composite Stock Price Index. The research population is daily data during the COVID-19 pandemic in Indonesia from March 2020 to November 2020. The sampling technique uses purposive sampling. The number of samples is 111 data. The data analysis method uses multiple linear regression with IBM SPSS 25 software tools. The results show that the rupiah exchange rate against the US dollar has a negative effect and the Kuala Lumpur Stock Exchange has a positive effect on the Composite Stock Price Index, while the BI interest rate, inflation, SSEC index, the SET index and the DJIA index have no impact on the Composite Stock Price Index. However, all independent variables simultaneously affect the Composite Stock Price Index.
ANALYSIS OF THE REASONS FOR CRACKING PIPES OF THE BOILER OF THE RECOVERY
Authors: SEREDA B.P. , SUKHOMLIN V.I. , VOLOKH V.I. , SEREDA D.B. 
Published: August 2021

8-381X
Abstract. Formulation of the problem. One of the main tasks of production is reliable and trouble-free operation of equipment. In the oxygen-envelope process, when cast iron is purged, a large amount of carbon monoxide CO is emitted in the converter, which has a high temperature of more than 1 700 °С of the outgoing gases. The envelope gases in the waste heat boiler are cooled. Converter gas output is characterized by cyclic unevenness In this case, uneven heating of the walls of the boiler pipes occurs. By circulation pumps, chemically purified water is supplied for forced cooling of the boiler walls. When raising the outgoing gases, the cooling water is converted to pars by its subsequent supply to the consumer. The study is dedicated to solving the scientific and applied problem for the reasons for the formation of defects and the identification of cracks in the pipes of the recovery boiler.The purpose of the work. To investigate the causes of the development of transverse cracks in the pipelines of the recovery boiler by various methods of non-destructive testing, to use the methods of scanning microscopy to analyze the microstructure, mechanical tests, and the magnetic properties of structural carbon steel. Conclusions. One of the main reasons for the appearance of massive cracks in the pipes of cylindrical caissons is thermal fatigue caused by high thermal loads. Transverse cracks have the character of thermal fatigue failure, which is confirmed by changes in the ferrite-pearlite structure of the metal, resulting from uneven local cooling of the walls of the caisson. The reasons for the violation of the water circulation in the boiler are the pressure drop in the boiler and a sharp discharge, the load is the release of water from the boiler.
Transformasi Hijau dan Implikasinya terhadap Daya Saing Berkelanjutan
Authors: Buhaerah Pihri , Sabilla Kanetasya 
Published: August 2021

Transformasi Hijau dan Implikasinya terhadap Daya Saing BerkelanjutanAbstractThis paper examines the linkage of green transformation and competitive advantage at the global level using constant market share and global value chain analysis. Constant market share analysis is used to measure a countryâ€™s trade contribution by comparing a countryâ€™s export growth with world export growth. Global value chain analysis is also employed to strengthen the constant market share analysis by looking at the role of green transformation in boosting the Indonesian competitiveness in the global supply chain. To achieve the objective of this study, data was collected from secondary sources such as the United Nations Comtrade Database and Asian Development Bank multi-regional input-output (ADB MRIO) for the period of 2000-2018. Constant market share analysis shows that dirty manufactured products from Indonesia can no longer be relied on to compete in the US and European markets due to the increasingly stringent environmental standards and regulations in those countries. Meanwhile, global value chain analysis finds that the clean manufacturing industry has higher competitiveness than the gross manufacturing industry at the global market level. For this reason, this study concludes that the future of Indonesia's manufacturing industry to compete at the global level is in the hand of the clean manufacturing industry.Keywords: green transformation; competitiveness; environmental regulation;Â constant market share analysis;Â global value chain analysisJEL Classification: F14, F18, Q56
Influence of tranexamic acid use on venous thromboembolism risk in patients undergoing surgery for spine tumors
Authors: Pennington Zach , Ehresman Jeff , Schilling Andrew , Feghali James , Hersh Andrew M. , Hung Bethany , Kalivas Eleni N. , Lubelski Daniel , Sciubba Daniel M. 
Published: August 2021

OBJECTIVE
Patients with spine tumors are at increased risk for both hemorrhage and venous thromboembolism (VTE). Tranexamic acid (TXA) has been advanced as a potential intervention to reduce intraoperative blood loss in this surgical population, but many fear it is associated with increased VTE risk due to the hypercoagulability noted in malignancy. In this study, the authors aimed to 1) develop a clinical calculator for postoperative VTE risk in the population with spine tumors, and 2) investigate the association of intraoperative TXA use and postoperative VTE.

METHODS
A retrospective data set from a comprehensive cancer center was reviewed for adult patients treated for vertebral column tumors. Data were collected on surgery performed, patient demographics and medical comorbidities, VTE prophylaxis measures, and TXA use. TXA use was classified as high-dose (≥ 20 mg/kg) or low-dose (< 20 mg/kg). The primary study outcome was VTE occurrence prior to discharge. Secondary outcomes were deep venous thrombosis (DVT) or pulmonary embolism (PE). Multivariable logistic regression was used to identify independent risk factors for VTE and the resultant model was deployed as a web-based calculator.

RESULTS
Three hundred fifty patients were included. The mean patient age was 57 years, 53% of patients were male, and 67% of surgeries were performed for spinal metastases. TXA use was not associated with increased VTE (14.3% vs 10.1%, p = 0.37). After multivariable analysis, VTE was independently predicted by lower serum albumin (odds ratio [OR] 0.42 per g/dl, 95% confidence interval [CI] 0.23–0.79, p = 0.007), larger mean corpuscular volume (OR 0.91 per fl, 95% CI 0.84–0.99, p = 0.035), and history of prior VTE (OR 2.60, 95% CI 1.53–4.40, p < 0.001). Longer surgery duration approached significance and was included in the final model. Although TXA was not independently associated with the primary outcome of VTE, high-dose TXA use was associated with increased odds of both DVT and PE. The VTE model showed a fair fit of the data with an area under the curve of 0.77.

CONCLUSIONS
In the present cohort of patients treated for vertebral column tumors, TXA was not associated with increased VTE risk, although high-dose TXA (≥ 20 mg/kg) was associated with increased odds of DVT or PE. Additionally, the web-based clinical calculator of VTE risk presented here may prove useful in counseling patients preoperatively about their individualized VTE risk.
Prognostic factors and nomogram prediction of survival probability in primary spinal cord astrocytoma patients
Authors: Yuan Chenghua , Yao Qingyu , Cheng Lei , Zhang Can , Ma Longbing , Guan Jian , Jian Fengzeng 
Published: August 2021

OBJECTIVE
Knowledge on the management of spinal cord astrocytoma (SCA) remains scarce. Here, the authors constructed and validated a predictive nomogram, often used for individualized prognosis and evaluations, to estimate cancer-specific survival (CSS) and overall survival (OS) for patients with SCA.

METHODS
Epidemiological characteristics were compared between low-grade SCA (LGSCA) and high-grade SCA (HGSCA) patients from the Surveillance, Epidemiology, and End Results (SEER) database. Risk factors for CSS and OS were determined using univariate and multivariate analyses and Kaplan-Meier curves. A nomogram was developed to individually predict the 3-, 5-, and 10-year CSS and OS rates. The clinical usefulness of the nomogram was assessed using calibration plots, the concordance index (C-index), and time-dependent receiver operating characteristic curves.

RESULTS
A total of 468 LGSCA and 165 HGSCA patients were eligible for inclusion. LGSCA and HGSCA patients demonstrated differences in age, tumor extension, insurance status, adjuvant treatment, and survival. Multivariate analysis demonstrated that in the LGSCA group, tumor extension, surgery type, and adjuvant therapy were individually associated with CSS. The distance of tumor extension and WHO grade were individually associated with CSS in the HGSCA group. The prognostic variables were further demonstrated using the Kaplan-Meier method, which also suggested that adjuvant treatment provided no advantage to HGSCA patients. A nomogram was constructed, and the C-index for CSS was 0.84 by internal validation (95% CI 0.79–0.90).

CONCLUSIONS
This research suggests that the distance of tumor extension, type of surgery, and adjuvant therapy are significant risk factors for CSS using multivariate analysis in the LGSCA group. Adjuvant treatment provided no advantages for CSS or OS in patients with HGSCAs. The nomogram may be clinically useful to healthcare providers.
Novel mutation in the MYH2 gene in a symptomatic neonate with a hereditary myosin myopathy
Authors: Oatmen K. , Camelo-Piragua S. , Zaghloul N. 
Published: August 2021

INTRODUCTION: Hereditary myosin myopathies are muscle disorders caused by mutations in myosin heavy chain genes. The MYH2 gene encodes the fast 2A skeletal muscle isoform, and mutations manifest as joint contractures, muscle weakness, and external ophthalmoplegia. Muscle biopsy shows decreased type 2A fibers, and vacuoles are sometimes present in adults with progressive disease. PRESENTATION OF CASE: This case describes a full term baby boy with hypotonia, dysmorphic features, dysphagia, and aspiration. Whole genome sequencing detected a novel heterozygous variant in the MYH2 gene. Muscle biopsy showed decreased type 2A fibers and vacuoles in myofibers. DISCUSSION: Hypotonia and dysphagia are common in infants with a MYH2 myopathy. However, dysmorphic features and vacuoles on biopsy have not previous been described in infants with MYH2 myopathies. CONCLUSION: This case reports an unusual phenotype of a rare neonatal-onset congenital myopathy associated with a novel heterozygous variant in MYH2.
ANALISA KUALITAS AIR SUNGAI DENGAN BIOINDIKATOR MAKROINVERTEBRATA DI SUNGAI GALENGDOWO
Authors: Mahardikha Emanuel Nugroho Damar 
Published: August 2021

Terjadinya suatu penurunan kualitas air di tandai dengan perubahan kualitas air dan pruahan kondisi habitat sungai tersebut. Hal ini terjadi di sungai galengdowo dimana terdapatperubahan kondisi habitat dan kualitas sungai, hal tersebut diakibatkan karena penduduk sekitar membuang limbah cair dari kegiataan peternakan sapi langsung ke sungai tersebut. Untuk menyelidiki secara ilmiah peneliti melakukan penyelidikan tentang kualitas sungai dengan menganalisa keberadaan dan jumlah makroinvertebrata di sungai tersebut menggunakan metode EPT. Penyelidikan dilakukan sebanyak 3 titik, titik pertama berada di hulu dengan jarak 0 m – 1.500 m, titik ke-dua berada di jarak 1.500 m- 3.000m dan titik ketiga berada pada jarak 3000m - 4.500m .Dari penyelidikan tersebut didapatkan hasil penelitian ini diketahui bahwas kondisi sungai seloatap berdasarkan keragaman makroinvertebrata tergolong tercemar sedang – tercemar berat, dengan score tertinggi 3,3 (tercemar ringan) pada titik 1 dengan koordinat (7°46'3.73"S 112°22'52.20"T) dan score terendah sebensar 1,43 (tercemar berat) berada di titik 2 dengan koordinat (7°45'43.11"S 112°22'6.63"T).
PEMANFAATAN KULIT PISANG SEBAGAI MEDIA PENYERAPAN LOGAM PADA LIMBAH CAIR (REVIEW JURNAL)
Authors: Yanuarita Dian , Pratiwi Anggita Sutra , Rossa Saragih Shania Miranda 
Published: August 2021

Kulit pisang diketahui mempunyai kemampuan dalam menyerap logam berat khususnya logam kadmium karena menghasilkan persen penyerapan tertinggi. Tujuan studi literatur yaitu untuk mengetahui aktivator terbaik pada adsorben, hubungan waktu kontak dengan persen penyerapan logam kadmium, dan hubungan massa adsorben dengan persen penyerapan logam kadmium. Aktivator yang digunakan pada studi literatur ini adalah HCl, H2SO4, HNO3, NaOH, KOH, dan H3PO4. Karbon aktif yang terbaik dari studi literatur didapatkan pada suhu karbonasi 300-500˚C dengan menggunakan aktivator HCl, sedangkan untuk biosorben hasil terbaik didapatkan pada suhu 75-100˚C dengan aktivator NaOH. Hasil terbaik pada karbon aktif didapatkan persen penyerapan sebesar 98,35% dengan massa 0,8 gram dan waktu kontak 90 menit, sedangkan pada biosorben didapatkan persen penyerapan sebesar 99,21% dengan massa 15 gram dan waktu kontak 3 menit. Dapat disimpulkan bahwa biosorben efektif digunakan dalam penyerapan logam kadmium dibandingkan karbon aktif.

Kata kunci : Kulit Pisang, Karbon Aktif, Biosorben, dan Persen Penyerapan
PENGARUH JENIS KENDARAAN BERMOTOR TERHADAP PENINGKATAN KONSENTRASI NITROGEN DIOKSIDA (NO2) DI SEKITAR BUNDARAN DOLOG
Authors: Rosyid Muhammad Agus Ainur , Hidayah Euis Nurul , Pulansari Farida 
Published: August 2021

Karakteristik Bundaran Dolog yang dikelilingi oleh jalan, mengakibatkan kerentanan terjadi penumpukan kendaraan bermotor pada jam-jam tertentu. Emisi Nitrogen Dioksida (NO2) dari kendaraan bermotor tersebut menyebabkan risiko pajanan polutan terhadap masyarakat yang bermukim di Bundaran Dolog, yaitu memberi efek negatif pada kesehatan manusia, berupa gangguan pernapasan. Penelitian bertujuan untuk mengetahui pengaruh volume kendaraan di Bundaran Dolog terhadap konsentrasi NO2, yang merupakan polutan dari emisi bergerak/kendaraan bermotor di jalan raya. Lokasi penelitian berada pada Bundaran Dolog yang terdiri dari area Taman Pelangi dan permukiman Jemur Gayungan, dengan total 8 titik pengambilan sampel yang dilakukan selama 6 hari. Penelitian mengukur volume kendaraan bermotor yang diklasifikasikan menjadi jenis ringan (LV), berat (HV), dan sepeda motor (MC), serta mengukur suhu dan kecepatan angin. Hasil penelitian menujukkan rata-rata konsentrasi NO2 30,92 ug/m3, suhu 30,2℃ di area Taman Pelangi, serta konsentrasi NO2 41,07 ug/m3, suhu 30,7℃ di area permukiman Jemur Gayungan. Pemodelan regresi linier berganda menunjukkan nilai 0,739 yang memiliki arti bahwa terdapat hubungan yang kuat secara simultan antara volume tiga jenis kendaraan LV, HV, dan MC, serta variebel suhu dan kecepatan angin terhadap kenaikan konsentrasi polutan NO2.