bluuebunny/crossref_metadata_2025_split huggingface dataset:
Written Feedback In Second Language Writing: Perceptions Of Vietnamese Teachers And Students
Authors:   , Nguyen Phuong Anh 
Published: December 2021

<p>Writing can be very challenging for ESL students since they need to overcome the changes associated with academic writing styles and their mechanics in order to improve their writing skills (Hyland & Hyland, 2006). In Vietnam, English is known as a foreign language in all public and private schools, and writing is a compulsory component. It is unavoidable that students will make errors in their writing development process, and feedback is a fundamental requirement to reduce these errors. Even if giving feedback costs a great deal of time, it can be the most significant investment of writing instructors (Ferris, 2002). In the last 20 years, many studies have examined a wide range of issues in academic writing, including the types of feedback, and stakeholders’ perceptions about feedback; however, the results have been contradictory. Mahmud (2016) revealed that teachers are often forced to use their own writing experience and intuitive criteria due to the lack of information on how to give feedback. Nevertheless, researchers tend to focus on either students’ or teachers’ perceptions, or both teachers’ and students’ perceptions, about different types of feedback in writing (Atmaca, 2016). In Vietnam, there are few studies about students’ and teachers’ perceptions of written feedback. This study investigated the views of both Vietnamese students and teachers on peer feedback, direct feedback, indirect coded feedback, indirect un-coded feedback, and self-feedback to fulfil the gap. Thirty-six university students in Finance and Banking and two senior English teachers participated in this study. Due to the unexpected pandemic, the researcher changed the study from in-class to online. This qualitative research employs questionnaires and interviews. The pre-questionnaire in class before the outbreak of coronavirus in Vietnam, but the rest of the questionnaire surveys and interviews were collected online because the school had shut down. The students were grouped into two separate online groups on Facebook with their classmates, and they were asked to complete five surveys about five different types of feedback. The findings revealed some similarities between teachers’ and students’ perceptions of feedback in L2 writing. In terms of similarities, both teachers and students agreed that feedback played an important role in L2 writing learning and teaching. Teachers and students believed that feedback could affect L2 learners’ cognitive engagement in writing and some types of feedback could affect learners’ psychology. Moreover, training was necessary to improve peer feedback in both quality and quantity of feedback and to help students use this type of feedback more effectively. The results from teachers’ interviews and students’ surveys also revealed the discrepancies between teachers’ and students’ perceptions of feedback in L2 writing. This study concludes that using appropriate types of teacher feedback can boost students’ confidence to improve their writing skills in the long term.</p>
The Impacts Of A Free Health Insurance Policy In Vietnam
Authors:   , Nguyen Khoa 
Published: December 2021

<p>Social Health Insurance (SHI) is promoted as a policy that tackles the impoverishing effects of catastrophic spending that results from unexpected health shocks. This thesis contributes to the literature on the impact of social health insurance by examining the impact of a policy introduced in Vietnam in 2005. The new policy provided free health insurance for all children under six years. Using a difference-in-difference estimation strategy and eight national household surveys conducted between 2002 and 2016, I examine a variety of direct, indirect, and spill over effects of the policy. The direct effects of the policy are on insurance coverage, health care use, health care expenses, and self-reported morbidity of targeted children. The indirect effects are the persistent effects of the policy on the same set of health outcomes (and education outcomes) beyond the period of exposure to the policy. A third set of impacts cover spill over effects of the policy - on the health and education outcomes of older children living with targeted children, and a variety of household-level outcomes that reflect various dimensions of the wellbeing of household members. The results show that a free health insurance policy for young children has significant impacts on the health outcomes of children while they are covered by the policy and these persist, and also extend to educational outcomes beyond the age of eligibility. The policy also has positive spill over effects on older (untargeted) children living in targeted households, and positive effects on household wage income, and income per capita. On the other hand, the policy has no effects on the standard of living, household health expenditure, caloric consumption, and the likelihood of household spending on catastrophic healthcare.</p>
Value Relevance of Integrated Reporting using a Novel Approach: Comparative Cross Country Evidence of Mandatory and Voluntary Implementers
Authors:   , Mohaimen FJ 
Published: December 2021

<p>This thesis examines the value relevance of accounting information under integrated reporting (IR) in a comparative mandatory and voluntary setting. A meta review is conducted of all published work focusing on integrated reporting since 2011, which provides detailed insight into the gaps in the IR literature. Multiplicative log-linear model is used in measurement, which is a novel technique that mitigates the shortcomings of traditional value relevance models. The findings show that value relevance of summary accounting information increases after the implementation of IR in the mandatory setting. In the voluntary setting, market effect and the existing reporting paradigm effect the value relevance of accounting information under IR. If the market is large and existing reporting requirements are robust voluntary adoption of IR has minimal to no effect. However, in smaller markets with less rigorous reporting environment, adoption of IR does result in increased value relevance of accounting information. Compared to traditional models, the multiplicative model provides estimates that are more stable over time and shows better explanatory power. Overall, the findings of this thesis show that capital providers value the information content of IR under specific circumstances. This thesis contributes to the IR and value relevance literature by providing the first comparative cross-country evidence of the effect of IR in the change in value relevance of reported accounting information. It provides policy relevant input to the standard setters of IR by demonstrating the effect of IR in the decision usefulness of summary accounting information. The thesis further provides robust evidence of the efficacy of using the multiplicative log-linear model in measuring value relevance instead of the traditional linear additive models.</p>
Encapsulation of agrichemicals by renewable cellulosic derivatives
Authors:   , Monk Harrison 
Published: December 2021

<p>Cellulose derivatives, charged with fungicides, have been prepared as particles for use as a wood preservative. The particles were designed to encapsulate the current industry-standard chemical agents used to minimise wood degrading fungal action and to deter termites. A detailed study on the most effective methodology that would be suitable for scaled-up production was undertaken. The methods explored included: double emulsions, solvent diffusion by dialysis membrane and phase inversion emulsification. Particles formed by these methods were characterised by scanning electron microscopy, dynamic light scattering, nuclear magnetic resonance spectroscopy and infrared spectroscopy. The fungicide incorporation was confirmed by nuclear magnetic resonance studies and gas-chromatography analytical analysis. The phase inversion emulsion process was found to be highly effective and readily manipulated to modify particle formation. Particles were successfully prepared containing fungicides in a yield of 35-75% (method dependant), containing the biocide at approximately 50% mass of biocide to total particle mass. Thus, this process was optimised through modifying the addition time of the aqueous phase, as well as variation of the surfactant and salt concentrations. With an optimised particle forming method, three fungicides were incorporated into the formulation and subsequently analysed to demonstrate successful biocide incorporation. The biocide charged mesoparticles underwent testing for antifungal action by our industrial partners Lonza.</p>
Functional analysis of Hypoxylon pulicicidum genes required for heterologous biosynthesis of nodulisporic acids
Authors:   , Van de Bittner Kyle Cornelius 
Published: December 2021

<p>Nature holds some of the greatest secrets in drug design and development and the ability to access these trade secrets has been revolutionised by modern bioengineering technologies. In order to exploit these technologies it is essential to understand what genes are involved in compound production and the enzymatic steps that limit flux to the desired product. This thesis describes the discovery of four secondary-metabolic enzymatic steps involved in the biosynthesis of a group of valuable natural products known as nodulisporic acids. Nodulisporic acids are known for their potent insecticidal activities; however, biosynthesis of these compounds by the natural fungal producer, Hypoxylon pulicicidum (Nodulisporium sp.), is exceptionally difficult and has prevented the commercial development of novel nodulisporic acid-containing veterinary medicines and crop protects. To discover how nodulisporic acids are biosynthesized: 1. the H. pulicicidum genome was sequenced 2. a gene cluster responsible for nodulisporic acid production was predicted 3. genes in the cluster were functionally characterised by pathway reconstitution in a common, fast growing mould, Penicillium paxilli In turn, four genes involved in the biosynthesis of the nodulisporic acid core compound, nodulisporic acid F, have been functionally characterised. The four genes encode a geranylgeranyl transferase (NodC), a flavin adenine dinucleotide-dependent oxygenase (NodM), an indole diterpene cyclase (NodB) and a cytochrome P450 oxygenase (NodW). Two of the gene products (NodM and NodW) catalyse two previously unreported reactions that provide the enzymatic basis of the biosynthetic branch point unique to nodulisporic acid biosynthesis. From here, future efforts will explore how these genes can be engineered to overcome flux bottlenecks and enable production of significantly increased, and even industrially relevant, product titres.</p>
Влияние полимеров и сополимеров олефинов на турбулентное течение углеводородных жидкостей
Authors: Manzhai Vladimir N. , Nesyn Georgy V. 
Published: December 2021

Drag reducing additives (DRA) are widely used to increase the pipeline capacity in oil and refined products transit. Introducing DRA at a rate of 1–5 ppm results in considerable lowering of pumping energy. To predict the capability of concerned polymer as a DRA we tried to give an effectiveness theoretical justification in terms of its chemical composition. It was shown that the most effective oil-soluble polymers relate to higher poly(1-alkenes) of superhigh molecular weight (M > 106). Additionally, the nature of the solvent is of importance. 1-Hexene polymerization in the presence of Zigler–Natta catalysts gives a super high molecular weight polymer which is the most effective drag reducer among the higher poly(1-alkenes). But if environment provide some limitation in poly(1-hexene) solubility, such as temperature lowering, or asphaltene content increasing the (co)polymers of 1-octene and 1-decene become the best.
Для интенсификации перекачки нефти и нефтепродуктов по магистральным трубопроводам в настоящее время широко используют противотурбулентные присадки, при введении которых в турбулентный поток в предельно малой концентрации (C = 1–5 г/м3) наблюдается уменьшение энергетических затрат на транспортировку углеводородной жидкости. С целью прогнозирования перспективы промышленного использования присадки той или иной химической природы в настоящей работе представлено теоретическое обоснование и экспериментальное подтверждение эффективности различных полимеров. Установлено, что из всех нефтерастворимых полимеров наилучшими противотурбулентными свойствами обладают высшие поли-α-олефины со сверхвысокой молекулярной массой (Мr > 1·106). Также выявлено влияние компонентного состава и термодинамического качества растворителя на эффективность присадок, причем эти факторы следует рассматривать в совокупности. Например, цепь полимера, обогащенная гексеном, при прочих равных условиях синтеза имеет большую молекулярную массу, и такой полимер в хорошем растворителе снижает сопротивление лучше своих аналогов. Тем не менее, если превалируют факторы, ограничивающие растворимость полигексена (низкая температура, обилие асфальтенов в нефти), предпочтительными оказываются полимеры и сополимеры октена и децена, имеющие более низкую температуру стеклования.
Организация системы менеджмента качества лабораторий с учетом требований ГОСТ ISO/IEC 17025-2019 с применением ЛИМС
Authors: Varaksin Konstantin S. , Makarov Artem S. , Gabova Svetlana V. , Alexander Alexander Y. 
Published: December 2021

The updated version of the ISO/IEC 17025 standard has introduced substantial changes to the structure, terminology, requirements to resources, processes, and quality management system of testing and calibration laboratories. New requirements were established for organization of laboratory activities – the process based approach and risk-targeted thinking, which provides for the cutting of some part of the prescriptive requirements and introduction of requirements based upon analysis of actions performed. In accordance with GOST ISO/IEC 17025-2019, the laboratory is required to provide risk identification and assessment processes, develop risk control measures and expand opportunities to achieve the established purposes and objectives. The standard requires the laboratory to plan and perform actions to manage risks and opportunities associated with laboratory activities. This article deals with organization of the quality management system of Transneft system organizations’ laboratories in the aspects of risk management, management of opportunities, corrective actions with the use of laboratory information management system (LIMS). The model of the process implementation is described, subject to requirements of GOST ISO/IEC 17025-2019.
Обновленная редакция стандарта ISO/IEC 17025 внесла существенные изменения в структуру, терминологию, требования к ресурсам, процессам, системе менеджмента качества испытательных и калибровочных лабораторий. Были установлены новые требования к организации деятельности лабораторий – процессный подход и риск-ориентированное мышление, что предусматривает сокращение части предписывающих требований и введение требований, основанных на анализе выполнения действий. В соответствии с ГОСТ ISO/IEC 17025-2019 от лаборатории требуется обеспечить процессы идентификации и оценки рисков, разработку мер по контролю рисков и расширению возможностей для достижения поставленных целей и задач. Стандарт требует от лаборатории планирования и реализации действий по управлению рисками и возможностями, связанными с лабораторной деятельностью. В настоящей статье рассматривается организация системы менеджмента качества лабораторий организаций системы «Транснефть» в части управления рисками, возможностями, корректирующими действиями с применением лабораторной информационной менеджмент-системы (ЛИМС). Описана модель реализации процесса с учетом соблюдения требований ГОСТ ISO/IEC 17025-2019.
Gelatin Extraction and Characterization from Femur Bones of Bovine and Porcine with Acid Process
Authors: Purwantiningsih Sugita  , Muhamad Rifai  , Ambarsari Laksmi , Rahayu Dyah Utami Cahyaning , Dianhar Hanhan 
Published: December 2021

Gelatin has been widely used as an additive in food industry pharmaceutical, and cosmetic. The similar physical appearance between bovine and porcine gelatin causes an issue for some communities like a Muslim due to awareness of halal food. This study aims to produce gelatin from femur bones of bovines with acid hydrolysis and their characteristics compared to standard gelatin of bovine and porcine. Bovine and porcine bones were soaked in 5% HCl for 10 days and every 2 days a HCl solution was replaced to get ossein. Ossein is hydrolyzed by gradual heating at 65, 75, and 85oC. Gelatin confirmed by the physico-chemical characters, FT-IR and analysis amino acid with HPLC.The results showed that the yield of bovine gelatin was 4.33%. The physico-chemical characters of bovine gelatin resulting from isolation and bovine gelatin standards are in conformity with porcine gelatin standards and meet the requirements of SNI 06-3735-1995 and GMIA. Therefore, bovine gelatin is specifically capable of substituting porcine gelatin for application in the pharmaceutical field. The FTIR spectrum of bovine gelatin shows the presence of amide A, amide I, amide II and amide III groups. The amino acid characters of gelatin were identified as glycine (13.57%) and proline (1.62%) for bovine gelatin and glycine (0.51%) and proline (0.09%) for porcine gelatin.
Caracterización petrográfica de materiales pétreos provenientes del río Calera, provincia de Tucumán, para su uso como áridos
Authors: Tomo Franco Emmanuel , Fogliata Ana Silvia , Sarapura Martínez Janet Ivanna 
Published: December 2021

La cuenca del río Calera, ubicado al NE de la provincia de Tucumán, Argentina, presenta una variedad de rocas ígneas, metamórficas y sedimentarias con diferentes características y propiedades. Se realizó una caracterización petrográfica de los agregados gruesos de un área del río ubicada entre las coordenadas 26°40'38.40"S y 65°4'5.71"O como límite norte y 26°41'1.92"S y 65°4'24.93"O como límite sur para determinar si existen indicadores potencialmente reactivos para la RAS, un tipo de reacción química que puede producir el deterioro del hormigón. Estos estudios se realizaron siguiendo los parámetros establecidos en los métodos de ensayo de las normas IRAM 1649 e IRAM 1531.
Kewenangan MUI Pasca Terbitnya PP No. 31 Tahun 2019 Tentang Peraturan Pelaksanaan UU No. 33 Tahun 2014 Tentang Jaminan Produk Halal
Authors: Putri Elfirda Ade 
Published: December 2021

Sertifikasi halal adalah fatwa tertulis MUI yang menyatakan kehalalan suatu produk sesuai dengan syariat Islam. Sertifikat halal ini merupakan syarat untuk mencantumkan label halal sehingga suatu produk layak untuk dikonsumsi oleh konsumen muslim. Pelaku usaha harus memenuhi syarat tertentu dan melewati serangkaian proses yang telah ditetapkan oleh MUI untuk memperoleh sertifikat halal. Setelah memperoleh sertifikat halal, pelaku usaha memperoleh label halal dari MUI untuk kemudian dicantumkan pada label produknya. Sertifikat halal ini hanya berlaku untuk jangka waktu tertentu dan pelaku usaha harus melakukan perpanjangan untuk memperoleh sertifikasi kehalalan produknya kembali. Bahwa Permasalahan timbul ketika Undang-Undang Nomor 8 Tahun 1999 tentang Perlindungan Konsumen, tidak menjadikan sertifikasi dan labelisasi halal sebagai sebuah bentuk kewajiban (mandotary) bagi pelaku usaha, tetapi bersifat sukarela (vo- luntary). Maka sertifikasi halal dan labelisasi halal dapat dikatakan belum mempunyai legitimasi hukum yang kuat, sehingga tidak memberikan perlindungan dan kepastian hukum produk pangan halal bagi konsumen.
Effect of Plant Extracts on the Postharvest Performances of Vegetables
Authors: Pervin Rubaiya , Kamal Uddin Khan Shamim Ahmed , Sultana Sabiha , Tabassum Mehnaj , Jui Jeba Afroza 
Published: December 2021

Plant extracts are recognized as safe and low-cost materials for postharvest treatments to increase the shelf life of horticultural commodities. However, in Bangladesh plant extracts are rarely used and very little research outcomes have been reported in Bangladesh context. Hence the current study was conducted to evaluate the effectiveness of combined botanical extracts in maintaining postharvest physico-chemical properties and extending shelf life of some summer vegetable (Bitter gourd, Brinjal and Pointed gourd) of Bangladesh. Freshly harvested vegetables were left untreated (control- T1) or treated with combination of aloe vera and thankuni extracts (T2); onion, garlic and ginger extracts (T3); aloe vera, thankuni, onion, garlic and ginger extracts (T4). Then they were kept for two weeks in uncovered paper carton in ambient conditions to observe their postharvest performances in respect of microbial infection (%), total soluble solids (% Brix), pH (magnitude), ascorbic acid content (mg/100 g), weight loss (%), shelf life (days), firmness (score) and color (score). In comparison to the control (T1), the postharvest properties were well maintained in T2 treated bitter gourd, and T4 treated pointed gourd and brinjal as recorded accordingly for shelf life (7.33, 6.63 and 7.30 days), content of vitamin C (39.56, 48.83 and 1.4 mg/100g), microbial infection (14.64%, 0% and 3.53%), rate of pH reduction (22.59%, 10.59% and 15.45% ), loss of fresh weight (1.39, 1.82 and 1.65-fold lower than T1) and color and firmness scores (1.22 and 1.36; 1.19 and 1.23; 1.8 and 1.39-fold higher than T1). From the current study it could be concluded that, the combination of aloe vera and thankuni extract would be considered as a suitable treatment for maintaining postharvest properties in bitter gourd. For pointed gourd and brinjal, the combination of aloe vera, thankuni, onion, garlic and ginger extract would be a suitable extract in this regard.
South Asian J. Agric., 7(1&2): 38-43
Role of ICTs in Increasing Agricultural Production as Perceived by the Coastal Farmers
Authors: Billah Md Maruf , Hossain Mohhamad Soliman , Ahmed Tanvir , Karim Md Riyajuddin , Hasan Naymul 
Published: December 2021

The study was conducted to know the role of ICTs in increasing agricultural production perceived by the coastal farmers of southern Bangladesh. Data were collected from 120 randomly selected farmers during August 2017 with the objectives to determine the extent of the role of ICTs in increasing agricultural production. The role of ICTs was measured by Likert type rating scale with assigned score and Farmers Perception Index was used to explain the relative proportion of the statements related to perception regarding the role of ICTs. Majority of the respondents (62.50%) observed medium role of ICTs in increasing agricultural production followed by 21.67% and 15.83% observed high and low role of ICTs respectively. Correlation analysis indicated that among the selected seven socio-economic characteristics; respondent's level of education, annual family income, communication exposure, and participation in agricultural training showed positive and significant relationship with the role of ICTs. On the other hand, age, credit received and household assets showed no significant relationship with the role of ICTs in increasing agricultural production. It was found that the large portion (88.8%) of the farmers faced medium to high constraints and only 11.2% faced low constraints in using the ICTs for increasing agricultural production.
South Asian J. Agric., 7(1&2): 56-60