bluuebunny/crossref_metadata_2025_split huggingface dataset:
<p>Research in mathematics education and language</p>
Authors: Planas Núria 
Published: December 2021

A synthesis of reasons for the production of this monograph is presented with a focus on contemporary research in the context of the Ninth Congress of the European Society for Research in Mathematics Education. Within the domain of mathematics and language, three lines of concern are addressed: (1) classroom discourse, (2) language diversity, and (3) conceptualization through language. Each line of concern is respectively illustrated by pioneering results from Ruthven and Hofmann, Barwell, and Edmonds-Wathen. An argument is made about the wide scope, depth and richness of this domain as well as the challenges involved in its development. Investigación en Educación Matemática y lenguaje Se presenta una síntesis de razones para la elaboración de este monográfico con atención a la investigación contemporánea en el contexto del Noveno Congreso de la Sociedad Europea de Investigación en Educación Matemática. Dentro del dominio de matemáticas y lengua, se discuten tres líneas de interés: (1) discurso del aula, (2) diversidad lingüística y (3) conceptualización mediante la lengua. Cada línea de interés se ilustra, respectivamente, por medio de resultados pioneros de Ruthven y Hofmann, de Barwell y de Edmonds-Wathen. Se argumentan el amplio espectro, la profundidad y riqueza de este dominio, así como los retos involucrados en su desarrollo.Handle: http://hdl.handle.net/10481/42469WOS-ESCI
Un modelo para la toma de decisiones del profesor de matemáticas
Authors: Pinzón Andrés , Gómez Pedro 
Published: December 2021

La toma de decisiones del profesor es un elemento central de la enseñanza. En este artículo, revisamos las nociones más relevantes que encontramos en la literatura sobre la toma de decisiones del profesor en la implementación del currículo en el aula. Proponemos un modelo que se enfoca en el proceso cognitivo que realiza el profesor cuando se enfrenta a una situación que interpreta como problemática en relación con el aprendizaje de los estudiantes. El modelo que proponemos puede servir para fundamentar un esquema metodológico para identificar, describir y caracterizar las decisiones espontáneas del profesor en el aula.Scopus record and citations
Analyzing the thermostabilization systems of lithi-um-ion traction batteries of electric vehicles
Authors: Serikov Georgy , Serikova Irina 
Published: December 2021

Problem. Possible implementations of thermal stabilization systems for traction batteries of electric vehicles are considered. The analysis of possibilities to increase the efficiency of using lithium-ion rechargeable batteries at the expense of their temperature stabilization is carried out. The influence of the temperature factor on the useful capacity of traction batteries is shown. The microcontroller system of temperature stabilization of double action with function of the timer allowing to establish prematurely a mode of both cooling, and heating of storage batteries is offered. Methodology. The methods of theoretical basic electrical engineering have been developed in the production and calculation of circuits as well as the classical methods of statistics of signals from ADC. Results. The technique of processing information from the current, voltage and temperature sensors using a mathematical apparatus without using harmonic analysis is presented. The hardware implementation of the proposed method allows the use of simplified computing tools. Originality. Complex analysis of the data obtained from the current, voltage and temperature sensors is carried out. During the analysis, the range of velocities with stable operation of the measurement system was determined. Based on the data obtained, it is concluded that the use of a horn antenna as a concentrator substantially eliminates lateral interference and extends the range of possible velocity measurements. It is shown that the level of sampling significantly affects the upper limit of the measurement temperature. Practical value. The following results were obtained:
- minimizing the harmful effects of negative temperatures on the battery capacity is possible through the use of preheating;
- the system of temperature stabilization should be performed with the possibility of reversing the mode of circulation of thermal energy;
- simplification of the process of determining the temperature is possible due to indirect measurements of the internal resistance of the heater;
- in the case of pulse-width control, the service life of the heaters increases, and the heating time is reduced at constant power consumption;
- application of the microprocessor system allows to increase functionality and flexibility of adjustment of the heating unit under various traction batteries.
Project as a method of teaching in higher education
Authors: Voronova Ye. 
Published: December 2021

The article shows that the main goal of the project method is to provide students with the opportunity to acquire independently knowledge in the process of solving practical problems or problems requiring the integration of knowledge from various subject areas. The teacher in the project is assigned the role of a coordinator, expert, additional source of information At the same time it is underlined that this , practically new technology, is directed to purposeful, generally independent activity of students, carried out under the flexible guidance of a teacher, aimed at solving a communicative research or socially significant professional problem and to obtain a specific result in the form of a material and / or ideal product. Goal. The purpose of the article is to show the importance of using the method of project. The project method in teaching a foreign language in a non-language (technical) university is a didactic means of activating the cognitive activity of future engineers, a method of developing their creativity, which also contributes to the formation of certain personal qualities The main purpose of the project method is to provide students with the opportunity to independently acquire knowledge independently in the process of solving practical problems or problems that require the integration of knowledge from different subject areas. Methodology. Various forms of presentation of educational material within the project method stimulating the development of such qualities of creativity as: and originality of thought, development of ideas, active creative self-development, intellectual independence of students is revealed in the article. Results. The method of projects helps take into account the individual characteristics of students, and it significantly contributes to the development of skills and skills in teamwork, decision-making and presentation in business and professional situations.
Defining the rational installation position for the discharging unit of the bucketless rotary imple-ment in the trenching excavator
Authors: Musiiko Vladimir , Koval Andrii , Olieinikova Oleksandrа 
Published: December 2021

The increasing volumes of the earthworks performed by trenching excavators during the creation of the lengthy excavations in the soil for the pipelines of different sizes and other purposes create the need to improve the excavators, to create new highly productive machines of the fundamentally new construction. The goal of this work is to increase the performance of trenching excavators equipped with the bucketless rotary implement by improving the process of the soil discharging from the implement. To achieve this goal it is required to reveal the physical essence of the soil excavation by the bucketless rotary implement and based on the performed study to determine the rational installation position for the discharging unit of the bucketless rotor. Methodology. The scientific hypothesis is that discharging of the inner circular cavities of the bucketless rotor during the trench digging and the movement of the excavated soil to the side from the trench is possible by means of rational use of the flow header pressure of the soil that is being transported in the rotor from the excavation. The study is performed with analytical methods using basic principles of the theoretical mechanics, flowing medium statics, force analysis. Results. The study confirms the scientific hypothesis of the possibility to discharge the bucketless rotary implements of the trenching excavators by using the flow header pressure of the excavated soil that is transported by the rotor from the excavation, rational installation position of the discharging unit of the implement is defined. Originality. The scientific novelty of the study lays in the rationale and confirmation of the possi-bility to excavate and transport the soil from the excavation with the implements of the rotary trenching excavators with continuous flow and not with the separate portions. Practical value. Practical value lays in ensuring the 2-5 times performance increase of the excavation using the bucketless rotary implements.
Anastrozole Loaded Nanostructured Lipid Carriers : Preparation and Evaluation
Authors: Hashim Alaa Abdul-Jabbar , A. Rajab Nawal 
Published: December 2021

Anastrozole (ANZ) is considered constitute of the fourth –generation of Non–steroidal aromatase blockage, ANZ has use for hormone receptor positive breast cancer in postmenopausal women. The serious side effects of ANZ including, vaginal dryness, hot flashes, irritability, breast tenderness and un–stability in circulation.
Nanostructured lipid carriers (NLCs) have recently emerged as a multifunctional platform for drug delivery in cancer therapy.
Five formula were composed of (200 mg of glyceryl monostearate, 40 mg of oleic acid , 1% (w/w) Tween 80, 1% (w/w) Poloxamer 407, 1% (w/w) soy lecithin and Vitamin E Polyethylene Glycol Succinate.
The mean particle size, polydispersity index, zeta potential, entrapment efficiency, loading capacity range of optimum formula F05 (166±3.86 nm), (0.271±0.04), (–23.7±2.65 mV), (42.43±3.90%) and (1.23±0.35%) respectively that prepared by same above composition but higher amplitude value (70%). The in–vitro drug leakage study demonstrated intact formula through 5 hours, with an approximately 78.37% of the drug was encapsulated, that exhibit an anomalous release mechanism.
Antioxidant Activity of Total phenols and Flavonoids extracted from Echinops polyceras roots grown in Syria
Authors: Al-Assaf Issa , Khazem Mays 
Published: December 2021

Free radicals are reactive compounds, their excessive production is considered to be an important cause of oxidative damage in biomolecules causing degenerative diseases. Polyphenols are one of the most important groups of secondary metabolites of plants, which have an antioxidant activity depending on their properties as hydrogen donors. Echinops polyceras Boiss. (Asteraceae) is one of Echinops genus species that spread in Syria, Lebanon, and Palestine. Phytochemicals found in this species leaves have been extracted with gradient polarity solvents, and primary screening of the secondary metabolites was established. The phenolic compounds and flavonoids contents were determined. The free radicals scavenging activity was evaluated for all extracts with DPPH• in a 96-well microplate. The specificity study indicates that ascorbic acid was absent, and reducing sugars were exist in the aqueous extract. The identification tests showed the presence of polyphenols like flavonoids and coumarins. The methanolic extract of the E. polyceras leaves was the most effective scavengers of free radicals (90.22% in 30 min) with phenolic compounds content 682.5 mg GAE/g of dried extract (DE) and flavonoids content 194.5 mg QE/ g DE. The chloroform extract was the least effective as free radical scavenging (60% in 30 min) as the phenolic compounds content was 278.5 mg GAE/g DE and flavonoids content 94 mg QE/ g DE. In conclusion, the phenolic compounds and flavonoids from Echinops polyceras Boiss. are effective in free radicals scavenging and protecting from diseases caused by oxidative stress.
Girth body dimensions in men and women with seborrheic dermatitis of varying severity
Authors: Khasawneh Ahmad Raed , Serheta I.V. , Belik N.V. , Dovhan A.O. , Zhuchenko I.I. 
Published: December 2021

Today in modern medicine the study of human health is reoriented to the individual principle, which is based on the identification and study of constitutionally determined patterns of manifestation of certain diseases. The purpose of the study is to establish and analyze the features of the girth body sizes in men and women with generalized fatty form of seborrheic dermatitis of varying severity. The comprehensive body size of 40 men and 40 young women (25-44 years) with generalized fatty seborrheic dermatitis (mild and severe) was determined. The control group consisted of the girth sizes of practically healthy men (n=82) and women (n=154) of the same age group, which were selected from the database of the research center National Pirogov Memorial Medical University. Statistical processing of body circumference was performed in the licensed package “Statistica 6.0” using non-parametric evaluation methods. As a result of studies in patients with seborrheic dermatitis of varying severity of men, compared with practically healthy men, found only greater values of the girth of the shoulder in a relaxed state and thighs, neck (only mild), shin in the upper part and waist (in both cases only with a severe degree), as well as smaller values of the girth of the shoulder in a tense state; and in patients of varying severity of women – greater values of the girth of the shoulder in a relaxed state, thighs, lower legs, neck, waist and all girths of the chest and both thighs (only severe), as well as smaller values of the girth of the hand (only with mild). In both men and women with seborrheic dermatitis, differences in girth body sizes are more pronounced in people with severe disease. Between men or women with seborrheic dermatitis of varying severity, there are no significant or trends in differences in girth body sizes. In the analysis of the manifestations of sexual dimorphism of the circumferential body size between men and women with seborrheic dermatitis found greater values in men with mild and severe disease of the upper extremities, hands, shin, feet and neck (in most cases more pronounced in representatives with mild severity), as well as only in men with mild severity – greater values of all chest girths. For a more correct understanding of changes in girth body sizes in Ukrainian men or women with seborrheic dermatitis of varying severity, it is necessary to analyze other constitutional parameters of the body.
Tethered spinal cord among individuals with myelomeningocele: an analysis of the National Spina Bifida Patient Registry
Authors: Dias Mark S. , Wang Ming , Rizk Elias B. , Bowman Robin , Partington Michael D. , Blount Jeffrey P. , Rocque Brandon G. , Hopson Betsy , Ettinger Daria , Lee Amy , Walker William O. , _ _ 
Published: December 2021

OBJECTIVE
The aims of this study were to review the National Spina Bifida Patient Registry (NSBPR) data set to study the rates of tethered spinal cord release (TCR) among patients with myelomeningocele and variability between centers, to compare TCR rates between males and females, and to study the relationships between TCR rates and other condition-specific characteristics.

METHODS
The NSBPR registry was queried to identify all patients with myelomeningocele. TCR rates were calculated over time using survival analyses; rates between centers and between males and females were compared. Cox proportional hazards models were constructed to identify relationships between TCR rates and sex, functional lesion level, ambulation status, treated hydrocephalus, and prior Chiari decompression.

RESULTS
Of 6339 patients with information about their operations, 1366 (21.5%) underwent TCR, with significant variability between centers. The majority (75.8%) underwent a single TCR. The annual TCR rate was linear between birth and 13 years (1.8%/year) but declined sharply from 14 to 21 years (0.7%/year). There was no period of time at which the TCR rate accelerated. There were no significant differences in TCR rates between males and females. TCR rate was not related to functional lesion level but was lower among nonambulators compared with community ambulators (p = 0.005) and among those with treated hydrocephalus (HR 0.30, p < 0.001), and higher among those having prior Chiari decompression (HR 1.71, p < 0.001).

CONCLUSIONS
These results extend the results of prior single-institution studies, demonstrate significant treatment variability between institutions, and challenge the traditional concept that tethering is related to spinal cord stretching due to spinal growth.
OTORITAS NEGARA DALAM MEREFORMULASI METODE PENENTUAN AWAL BULAN QAMARIYAH
Authors: Andriana Fika 
Published: December 2021

Penelitian ini bertujuan untuk menganalisa secara mendalam tentang: 1) Kebijakan negara terkait dengan penentuan awal bulan qamariyah, 2) Upaya negara dalam mereformulasi metode penentuan awal bulan qamariyah, 3) Otoritas negara dalam mereformulasi metode penentuan awal bulan qamariyah. Data primer penelitian bersumber dari buku-buku ilmu falak, buku-buku ilmu politik dan negara, sedangkan data sekunder diperoleh melalui kajian literatur lainnya seperti Ensiklopedi, artikel pada surat kabar dan majalah yang terkait dengan hisab rukyat.Hasil penelitian menunjukkan bahwa kebijakan negara terkait metode penentuan awal bulan qamariyah terdiri dari metode yang digunakan adalah metode hisab dengan berpedoman pada hasil rukyat, kriteria yang digunakan adalah visibilitas hilal, serta teknis dalam menentukan atau menetapkan awal bulan qamariyah adalah dengan menggelar sidang itsbat yang dilaksanakan pada hari dilaksanakannya rukyat. Sedangkan upaya yang dilakukan negara dalam mereformulasi metode penentuan awal bulan qamariyah adalah dengan menggelar pertemuan dan musyawarah penyatuan metode, selain itu telah dibentuk tim perumus undang-undang hisab rukyat. Adapun dalam hal penentuan awal bulan qamariyah, negara memiliki otoritas dalam mereformulasi metode penentuan awal bulan qamariyah. Hanya saja, sepanjang penelitian ini dilakukan, peneliti menyimpulkan bahwa otoritas tersebut tidak berjalan sebagaimana mestinya. Hal ini disebabkan oleh tidak adanya aturan yang kuat dan mengikat karena tidak adanya sanksi dalam peraturan tersebut.
Identification of Genetic Variants of Human Papillomavirus in a Group of Mexican HIV/AIDS Patients and Their Possible Association with Cervical Cancer
Authors: ORTIZ-GUTIÉRREZ FELIPE , SÁNCHEZ-MINUTTI LILIA , MARTÍNEZ-HERRERA JOSÉ F. , TORRES-ESCOBAR INDIANA D. , PEZZAT-SAID ELIAS B. , MÁRQUEZ-DOMÍNGUEZ LUIS , GRANDES-BLANCO AMADO I. 
Published: December 2021

Abstract
Infections caused by the human immunodeficiency virus (HIV) and human papillomavirus (HPV) cause thousands of deaths worldwide each year. So far, there has been no consensus on whether there is a direct relationship between the incidence of neoplasms and the immunosuppression caused by HIV that could help understand if coinfection increases the likelihood of cervical cancer. The objective of the study was to identify the presence of genetic variants of HPV in a group of HIV-positive women and their possible association with cervical cancer. Cervical samples were taken from HIV-positive patients for cytological analysis to identify the HPV genotype by polymerase chain reaction (PCR) and sequencing. The most prevalent L1 capsid protein mutations in the HPV genotype were analyzed in silico. Various types of HPV were identified, both high-risk (HR) and low-risk (LR). The most prevalent genotype was HPV51. Analysis of the L1 gene sequences of HPV51 isolates showed nucleotide variations. Of the samples analyzed in Puebla, Mexico, HPV51 had the highest incidence (17.5%, 7/40). Different mutations, which could be used as population markers, were detected in this area, and they have not been reported in the L1 databases for HPV51 in Mexico. Genotypes 6, 14, 86, 87, 89, and 91, not detected or reported in samples from patients with HPV in Mexico, were also identified. Data from the population analyzed suggest no direct relationship between HIV immunosuppression and cervical cancer, regardless of the high- or low-risk HPV genotype. Furthermore, it is possible to develop regional population markers for the detection of HPV based on the mutations that occur in the sequence of nucleotides analyzed.
Застосування методу двох функцій для вирішення завдань бойового забезпечення ракетних військ і артилерії
Authors: Майстренко Олександр , Лихольот Олександр , Кольченко Максим 
Published: December 2021

Дослідження присвячене обґрунтуванню підходів щодо розробки та впровадження програми пов’язаної із визначенням потреби у засобах метеорологічного забезпечення та повноти метеорологічної інформації у відповідних військових формуваннях.
У статті проаналізовано існуючі форми подачі метеорологічної інформації. Виявлено, що форми подачі такої інформації залежать від потреб споживача, однак мають частину інформації, яка корисна для потреб військових споживачів, зокрема для потреб ракетних військ і артилерії. До такої інформації належать: температура повітря, атмосферний тиск, швидкість і напрямок вітру, вологість повітря.
Також, у роботі розроблено порядок переводу метеорологічної інформації отриманої з різних джерел у форму потрібну для військових формувань. Основними етапами порядку є: переведення величини атмосферного тиску; побудова графіку вертикального розподілу стандартних ізобаричних поверхонь та переведення цього графіку з стандартних ізобаричних поверхонь до стандартних висот прийнятих в ракетних військах і артилерії; побудова графіків залежності величин температури повітря, напряму та швидкості вітру від стандартних висот; перерахунок напряму та швидкості вітру в балістичні складові вітру по стандартним висотам; врахування прогнозованих величин метеоелементів; узагальнення метеорологічних та гідрологічних явищ.
До того ж, у статті розроблено методику оптимального розподілу джерел метеорологічної інформації за споживачами. Сутність методики полягає у застосуванні методу нелінійного програмування, так званого методу двох функцій, для розподілу неоднорідних, за можливостями, джерел метеоінформації між неоднорідними, за потребами, споживачів такої інформації. Ця методика дозволяє оперативно здійснювати розподіл наявних джерел метеоінформації між споживачами такої інформації.
Ще у дослідженні запропонована процедура застосування програмного засобу «Повнота метеоінформації». Ця процедура включає послідовність дій та їх змістовне наповнення щодо застосування зазначеного програмного засобу. Вказана процедура дозволяє зменшити час на засвоєння навичок роботи з вказаним програмним засобом.