bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of coupling agent on the mechanical properties of injection molded polypropylene/wheat straw composites
Authors: Lendvai László , Patnaik Amar 
Published: November 2022

The objective of this work is to evaluate the effect of maleic anhydride-grafted polypropylene (MAPP) as coupling agent in polypropylene (PP)-based composites filled with ground wheat straw (WS) particles. The WS and the MAPP content in the composites was 10 wt% and 2 wt%, respectively. The samples were fabricated through melt compounding using a twin-screw extruder and then formed into dumbbell-shaped specimens by injection molding. The mechanical properties of neat PP and the composites with and without coupling were evaluated based on tensile and flexural tests and dynamic mechanical analyses (DMA). The experimental results showed that incorporating WS into the PP reduces its tensile strength by ~3 MPa, while improving its Young’s modulus by 0.14 GPa. The addition of MAPP compensated for the loss in tensile strength without affecting the modulus. Similar observations were made during the flexural tests as well, in which case, however, there was no loss revealed in the strength in the presence of WS due to the different types of load. The results of DMA analyses indicated an improved stiffness of WS-containing samples throughout the whole analyzed temperature range of 20-120 °C as a consequence of reduced chain mobility of PP caused by the stiff straw particles.
Investigation of improved optical and conductivity properties of poly(methyl methacrylate)–MXenes (PMMA–MXenes) nanocomposite thin films for optoelectronic applications
Authors: Tan KimHan , Samylingam Lingenthiran , Aslfattahi Navid , Johan Mohd Rafie , Saidur Rahman 
Published: November 2022

Abstract
Polymer matrix composites composed of poly(methyl methacrylate) (PMMA) and MXenes (Ti3C2T
x
) are synthesized using direct solution blending and casting techniques. MXenes are a new family of two-dimensional materials. Both optical and conductivity properties of the resulting PMMA-MXene nanocomposite thin films are studied as a function of MXene concentration, for the first time. The resulting thin films are in the micrometer range (8.10–8.80 µm) in thickness. As the concentration of MXenes increases, the PMMA embeds MXenes, causing structural disturbance but without any change in the crystal structure. The MXene thickness in single-layered structure is 15–20 nm. Optical investigations such as UV-Vis absorption, absorption coefficient, extinction coefficient, and band gap have been reported to study the light absorption of nanocomposites. Resistivity measurement associated with electrical conductivity is studied. The relationship between optical responses and electrical conductivity is discussed. When compared to pure PMMA (1 × 10−14 to 1 × 10−13 S m−1), nanocomposites have electrical conductivity that is more than 3,000 times higher. The nanocomposites containing 15 wt% MXenes had the highest conductivity of 1.35 × 10−3 S m−1. Both the conductivity improvement and tunable optical findings accelerate the route of integrating MXenes into polymers to create more promising multifunctional composites for optoelectronic applications such as conductive electrodes, thin film transistors, and logic circuits.
Iterates of q-Bernstein operators on triangular domain with all curved sides
Authors: Iliyas Mohammad , Khan Asif , Arif Mohd , Mursaleen Mohammad , Lone Mudassir Rashid 
Published: November 2022

Abstract
In this article, Phillips-type Bernstein operators

(

ℬ

m
,
q

t

F

)

(

t
,
s

)

({{\mathcal{ {\mathcal B} }}}_{m,q}^{t}F)\left(t,s)

and

(

ℬ

n
,
q

s

F

)

(

t
,
s

)

({{\mathcal{ {\mathcal B} }}}_{n,q}^{s}F)\left(t,s)

, their products, and Boolean sum based on q-integer have been studied on a triangle with all curved sides. Furthermore, convergence of iterates of these operators have been analyzed using the weakly Picard operators technique and the contraction principle.
An integrated tone box scheme for determining tones in Tai varieties beyond Southwestern Tai: diachronic and synchronic concerns
Authors: Liao Hanbo 
Published: November 2022

Abstract
When applied to Tai varieties beyond Southwestern Tai, Gedney’s tone box framework and its revised versions have several shortcomings, the most notable of which is the lack of consideration of diachronic issues that give rise to more complicated tonal correspondences. This paper proposes a more widely applicable Tai tone box chart with one additional tier based on the more probable tone-conditioning phonetic nature of onsets found in non-Southwestern Tai varieties. This Tai tone box chart has been designed to be paired with an ancillary chart to explain the essential diachronic processes of different Tai varieties. It thus provides insights into the revision of Proto-Tai phonological reconstructions based on tonology and support for the early-stage Southern-Northern Tai division and the Southwestern-Central Tai versus Yongnan Zhuang-Saek-Northern Zhuang divisions.
Trade, Kingdom, and Empire: Edom and the South Arabian Trade
Authors: Danielson Andrew J. 
Published: November 2022

AbstractDuring the first millennium BCE, extensive trade networks linked the South Arabian and Mediterranean worlds. While these trade networks are well known for their transport of highly lucrative materials, these connections afforded myriad economic and diplomatic opportunities for the intermediaries located along its routes, and held significant bearing on the political economies of southern Levantine kingdoms. While the wealth and opportunity afforded by the Arabian trade to these kingdoms are frequently invoked—particularly in relation to Edom—such references, and related discussions of the Arabian trade, are often restricted in their chronological scope and reliant on limited data. Recent scholarship on Edom, however, has substantially contributed to a more detailed understanding of settlement trajectories and shifts in sociopolitical organization, which, combined with recent archaeological research on varied aspects of the Arabian trade, necessitate an expanded synthesis of the trajectory of this trade and its relation to Edom. This work thus presents first an outline of the diachronic trajectory of the Arabian trade in relation to the southern Levant using textual and material culture data, and second, analyzes it within the context of sociopolitical developments in the late Iron Age kingdom of Edom. Ultimately, this work argues for a close association between the flourishing of long-distance trade in the southern Levant and the presence of sedentary sociopolitical complexity in southern Transjordan, as evident in the kingdoms of Edom and later Nabataea.
Data Mining in Social Sciences: A Decision Tree Application Using Social and Political Concepts
Authors: Massou Efthalia , Prodromitis Gerasimos , Papastamou Stamos 
Published: November 2022

Abstract
In this paper, we investigated the utility of data mining to classify individuals into predefined categories of a target variable, based on their social and political attitude. Data collected for a social psychology study conducted in Greece in 1994 were used for this purpose. We established the theoretical background of our analysis through explanatory factor analysis. We ran the decision tree algorithm CHAID in order to build a predictive model that classifies the study participants in terms of their attitude toward physical and symbolic violence. The CHAID algorithm provided a decision tree that was easily interpreted, and which revealed meaningful predictive patterns. CHAID algorithm showed satisfactory predictive ability and promising alternatives to social psychology data analysis. To the best of our knowledge, there is no other evidence in the literature that the decision tree algorithms can be used to identify latent variables.
The role of different inorganic anions on passive film durability for nickel against chloride ions pitting corrosion in borate buffered solution
Authors: Al-Qhatani Mohsen M. , Deyab Mohamed A. 
Published: November 2022

Abstract
Potentiodynamic and cyclic voltammetric studies were carried out on nickel in borate buffered saline (pH = 8.49). The anodic excursion spans of nickel in borate buffer solution do not involve active/passive transition. The passive film starts to break down in the presence of Cl-ions, which causes pitting damage. The data reveal that the increasing Cl− concentration and solution temperature shifts the E
pit to the active direction while the increasing in scan rate shifts the E
pit to the positive direction. The pitting potential (E
pit) shifted in a positive direction when increasing concentrations of Wo4
−2 and MoO4
−2 anions were added to a borate buffer solution containing Cl− ions, showing that the additional anions had an inhibitory influence on the pitting corrosion. While the NO3
− anion is ineffectual as an inhibitor and rather speeds up pitting corrosion, the NO2
− anion has a slight inhibitory impact on pitting corrosion.
Acute presentation of immunotherapy-related diabetes mellitus without ketoacidosis, low C-peptide or elevated HbA1c
Authors: Phang Cun An , Kumar Shejil , Rohl Peter 
Published: November 2022

Summary
The rapid rise in the use of immune checkpoint inhibitors as systemic cancer therapy has seen the emergence of immunotherapy-induced diabetes, a severe irreversible immunotherapy-related adverse event. Affected patients typically present with diabetic ketoacidosis (DKA) and low C-peptide consistent with insulin deficiency secondary to autoimmune β-cell destruction. We present the unusual case of a 61-year-old female with metastatic ampullary duodenal adenocarcinoma with primary tumour adjacent to the pancreatic head. She was commenced on immunotherapy after conventional systemic chemotherapy. Acute-onset hyperglycaemia was detected after 7 weeks on weekly blood glucose monitoring, with no glucocorticoid use or prior history of diabetes. On presentation, there was no evidence of DKA, and her glycated haemoglobin level was within the normal non-diabetic range at 5.3%, reflecting the acuity of her presentation. Initial serum C-peptide was preserved; however, it became undetectable a few weeks later, confirming insulin deficiency. We describe a case of atypical presentation of immunotherapy-induced diabetes, review the existing literature on this emerging clinical entity and discuss the differential diagnosis for new-onset diabetes mellitus in patients with metastatic cancer.

Learning points

Regular proactive glycaemic monitoring in patients receiving immunotherapy, particularly antibodies against programmed death ligand 1 and PD1, can facilitate very early detection of immunotherapy-induced diabetes, prompting insulin commencement and avoiding life-threatening presentations of diabetic ketoacidosis.

Glycated haemoglobin can be within the normal range in patients diagnosed acutely with immunotherapy-induced diabetes.

Serum C-peptide can be preserved initially in patients diagnosed with immunotherapy-induced diabetes but is likely to become undetectable during their illness.

New-onset diabetes in patients with metastatic cancer carries a broad differential diagnosis.
Adult-onset nesidioblastosis: a challenging diagnosis revealed by glucagon-like-peptide-1 receptor imaging
Authors: Demartin Sophie , Goffette Pierre , Christ Emanuel , Freitag Martin T , Maiter Dominique , Maria Furnica Raluca 
Published: November 2022

Summary
A 52-year-old female presented with recurrent episodes of fasting or post-absorptive hypoglycemia. A 72-h fasting test confirmed endogenous hyperinsulinemia. Conventional imaging was unremarkable. Selective pancreatic arterial calcium stimulation and hepatic venous sampling showed a maximum calcium-stimulated insulin concentration from several pancreatic areas, mainly the proximal splenic artery and the proximal gastroduodenal artery, suggesting the presence of one or more occult insulinoma(s) in the region of the pancreatic body. 68Ga-DOTA-exendin-4 PET/CT showed however generalized increased uptake in the pancreas and a diagnosis of nesidioblastosis was therefore suspected. The patient has been since successfully treated with dietetic measures and diazoxide. Treatment efficacy was confirmed by a flash glucose monitoring system with a follow-up of 7 months.

Learning points

Adult nesidioblastosis is a rare cause of endogenous hyperinsulinemic hypoglycemia.

The distinction between insulinoma and nesidioblastosis is essential since the therapeutic strategies are different.

68Ga-DOTA-exendin-4 PET/CT emerges as a new noninvasive diagnostic tool for the localization of an endogenous source of hyperinsulinemic hypoglycemia.

Medical management with dietetic measures and diazoxide need to be considered as a valuable option to treat patients with adult nesidioblastosis.

Flash glucose monitoring system is helpful for the evaluation of treatment efficacy.
Formación inicial, teoría y práctica en las 24 propuestas de reforma
Authors: Montero Mesa Lourdes 
Published: November 2022

El profesorado es la clave y la punta de lanza para el éxito de cualquier reforma educativa. Sin embargo, pocas veces se convierte en el foco de una propuesta específicamente dirigida a la profesión docente. El Documento “24 propuestas de reforma para la mejora de la profesión docente”, representa una de esas ocasiones en las que la mirada se focaliza en ese conjunto de profesionales que hacen de la enseñanza y el aprendizaje su razón de ser. Fue presentado en enero de 2022 por el Ministerio de Educación y Formación Profesional, en cumplimiento de la disposición adicional séptima de la LOMLOE (BOE 30/12/2020). Este artículo se hace eco de la relevancia de una propuesta de reforma que tiene como finalidad la mejora de la profesión docente y la formación y el desarrollo profesional del profesorado.
La lectura y análisis del documento citado, y un bucear entre sus líneas, me animó a seleccionar aquellos aspectos y propuestas más comprometidos con la atención a la interacción teoría y práctica: profesores productores de conocimiento, competencias profesionales, el acceso a la profesión docente y la relevancia de la formación inicial. Todos ellos dan cuenta de las relaciones teoría y práctica, de manera explícita o implícita.
He organizado el contenido de este artículo en dos grandes partes. La primera, contiene una mirada global al documento de las 24 propuestas de reforma, su estructura y contenidos, y el análisis crítico de los aspectos citados en el párrafo anterior.
La segunda, estará dedicada a profundizar en las relaciones entre la teoría y la práctica en la formación inicial; relaciones apasionantes, huidizas, pero esenciales a la hora de comprender los problemas de la enseñanza en el proceso de ser docente.
Transportation Infrastructure and Family Educational Expectations: An Empirical Analysis Based on the China Family Panel Survey
Authors: Chen Wuyuan 
Published: November 2022

Based on data from the China Statistical Yearbook and China Family Panel Survey (CFPS), this article investigated the influence of regional transportation infrastructure development on family education expectations. Research results show that there is a significant positive correlation between transportation infrastructure and family educational expectations and that the improvement of transportation infrastructure can enhance the family’s willingness to engage their children in higher education. According to the results of influencing mechanism analysis, transportation infrastructure development affects family education expectations by increasing family income and changing family reproduction concepts and educational ideas. In addition, the impact of transportation infrastructure construction on family education expectations is heterogeneous: the positive correlation between them is particularly significant in rural areas with less developed transportation infrastructure, in areas with low average education level of parents and slow information communication, and among families of lower social classes; however, the relationship between the two variables is not prominent in urban areas, in areas where information communication is fast and parents have a higher average education level, and among families with higher social classes. These research findings offer the nation and government new implications for better promoting poverty alleviation through education and rural revitalization in underdeveloped areas.
تطوير تعليم مهارة اللإستماع بالويب لا شبكة فى المدرسة الثانوية الحكومية
Authors: Sari Nurhaliza 
Published: November 2022

الهدف من هذا البحث تطوير تعليم مهارة الإستماع بالويب فى المدرسة الثانوية الحكومية للحصول على إنتاج تعليم مهارة الإستماع المطابقة على الحاجات المدرسة والصحيحة . وذلك، منهجية البحث هي بحث تطويرى بخطوات تحليل الحاجات، وتصميم التطوير، والتطوير الممتجات الأول وتصحيحه، والتطوير الممتجات الثانى وتصحيحه، والتطوير الصحيح من إنتاج مهارة الإستماع. وأما مصدر البحث هو الوثائق ومدرسة اللغة العربية فى المدرسة الثانوية الحكومية. وجمع البيانات بالملاحظة والإستبانة, وتحليل البيانات بالتحليل الوصفى. وجد البحث أن إنتاجات التطوير عن تعليم مهارة الإستماع بمساعدة الويب يقبلها المدرس ويراها جيد ويمكن لاستخدام فى تعليم مهارة الإستماع. وخلاصة البحث أن للحصول على إنتياجات تعليم مهارة الإستماع الصحيحة تحتاج إلى البحث التطويرى، فتعليم مهارة الإستماع المناسبة بحاجات المدرسة فى تعليم مهارة الإستماع الناجح والجيد
استراتيجى تعليم مهارة كتابة اللغة العربية
Authors: Islamiati Islamiati 
Published: November 2022

الهدف من هذه الدراسة هو دراسة عن استراتيجى تعليم مهارة كتابة اللغة العربية لأنها أصعب المهارة من المهارات اللغةية العربية الأربعة. وذلك، منهجية البحث هي بحث مكتبى بخطوات جمع المراجع المناسبة، وقراءتها ثم فهمها ومطالعتها ثم يحللها تحليلا نظريا بأساس أراء العلماء وتقديم الخلاصة. وجدت الدراسة أن استراتيجى تعليم مهارة كتابة اللغة العربية. وخلاصة الدراسة أن تعليم مهارة الكتابة اللغة العربية المناسب
Development Of Evaluation Media Spinning Question For Reading Skills For Seventh G raders At MTsN 2 Padang
Authors: Fadillah Dayana 
Published: November 2022

The teacher uses the old evaluation Media, in the digital age learning evaluation cannot be separated from the impact of technological development, as one of the modern evaluation Media is Spinning Question. This research is a development research with 4D model which consists of four steps, namely; definition, design, development, and deployment. However, the researcher limits the development procedure in terms of assessing media based on experts in terms of media and languages. The development procedure in this research is; the development needs analysis stage, namely the analysis 2013 Curriculum, student book, the form of questions used and analysis of the needs of Arabic teachers and students. The results of the data obtained show a rating of "Excellent" in the sense that the development of this media is very much needed. Then the planning stage; starting from writing a grid of questions, writing question and making evaluation media on Spinning Question. After you have finished making your Spinning Question evaluation media product, proceed to the development stage, namely; with expert verification, product modification and final production. The media validation results show a "Very Good" rating, which means that Spinning Question can be used in evaluation reading skills for seventh graders in Islamic Junior High School two Padang
The Correlation between listening skill and speaking skill student of Arabic language education department
Authors: BN Fadhil 
Published: November 2022

The main problem is the listening skills, Speaking skills, and correlation between listening skills and speaking skills in fifth grade students of the Arabic Language Education Department, Tarbiyah faculty and teacher training at Imam Bonjol University Padang. The research method used is a descriptive-correlation method, and data are presented in the form of numbers and analyzed by statistical methods, The method of data collection in this study was to use an audio test and an oral test, and the research sample consisted of 25 students, all of them is fifth grade students of Department of Arabic Language Education Faculty of Tarbiyah and Teacher Training Imam Bonjol University Padang. This study reached the results, as found from the results of the fifth grade, and the highest result for listening skills was eighty-eight and the lowest was seventy-three. And The results for speaking skills the highest was eighty-six and the lowest was seventy, There is a strong correlation between listening skills and speaking skills among fifth grade students in Arabic language education department. This correlation is indicated by the results achieved by students of 1% = 0.505 and 5% = 0.369, and the results of the correlation between listening skills and speaking skills are 0.574 This shows a strong correlation
PENGARUH LUAS LAHAN DAN PRODUKTIVITAS TERHADAP HASIL PRODUKSI KELAPA SAWIT MENGGUNAKAN METODE COBB DOUGLASS (STUDI KASUS: PTPN V, PEKANBARU)
Authors: Safitri Elfira , Basriati Sri , Sari Kiki Indah 
Published: November 2022

Penggunaan minyak kelapa sawit terus meningkat seiring dengan pertumbuhan penduduk dunia. Perkembangan teknologi produksi dan peningkatan tingkat konsumsi penduduk, diperkirakan bahwa penggunaan minyak kelapa sawit akan terus meningkat. Penelitian ini bertujuan untuk mengetahui pengaruh luas lahan dan produktivitas terhadap hasil produksi kelapa sawit. Adapun metode yang digunakan adalah metode Cobb Douglass. Berdasarkan hasil pengolahan data diperoleh hasil uji asumsi klasik menunjukkan bahwa pengaruh luas lahan dan produktivitas terhadap hasil produksi kelapa sawit terbebas dari gejala multikolineritas, autokorelasi, heteroskedastisitas dan normalitas. Hasil koefisien determinasi dapat dijelaskan bahwa presentase sumbangan pengaruh yang diberikan variabel independen terhadap variabel dependen sebesar 99,6%. Pengolahan data menggunakan software SPSS versi 16.0 diperoleh kesimpulan bahwa luas lahan dan produktivitas memiliki pengaruh terhadap hasil produksi kelapa sawit AbstractThe use of palm oil continues to increase along with the growth of the world's population, the development of production technology and the increase in the level of population consumption, it is estimated that the use of palm oil will continue to increase. This study aims to determine the effect of land area and productivity on oil palm production. The method used is the Cobb Douglas method. Based on the results of data processing, the classical assumption test results show that the effect of land area and productivity on oil palm production is free from the symptoms of multicolinearity, autocorrelation, heteroscedasticity and normality. The results of the coefficient of determination can be explained that the percentage contribution of the influence given by the independent variable to the dependent variable is 99.6%. Data processing using SPSS version 16.0 software, it can be concluded that land area and productivity have an influence on oil palm production.
ESTIMASI DENSITY KERNEL DENGAN BANDWITH YANG BERBEDA
Authors: S Hariza Hayu 
Published: November 2022

Dalam estimator kernel, parameter penghalus merupakan pengontrol keseimbangan antara kesesuaian kurva terhadap data dan kemulusan kurva. Bentuk kurva kernel bergantung pada kurva penduga fungsi kepekatan peluang akan bergantung pada lebar jendela yang merupakan parameter pemulus. Hasil simulasi menunjukkan bandwith (lebar jendela) lebih besar atau sama dengan satu telah memperlihatkan bentuk kurva normal untuk kernel quartic, gaussian, epanechnikov, dan kosinus.