bluuebunny/crossref_metadata_2025_split huggingface dataset:
Clinical phenotypes of primary hyperparathyroidism in hospitalized patients who underwent parathyroidectomy
Authors: Yanevskaya Liubov G , Karonova Tatiana , Sleptsov Ilya V , Boriskova Marina Evgenevna , Bakhtiyarova Aluza Ramilevna , Chernikov Roman A , Pogosian Karina Aleksandrovna , Andreeva Alena Timurovna , Lebedev Denis Andreevich , Grineva Elena Nikolaevna , Bilezikian John P 
Published: January 2021

Objective
The aim of our study was to investigate the distribution of the PHPT clinical manifestations and biochemical features in patients who underwent parathyroidectomy.

Materials and methods
Medical records of 449 patients from three Medical Centers (Saint-Petersburg, Russia), hospitalized during a period from 2011 to 2018, were reviewed. History and anthropometric data, laboratory results (iPTH, total and iCa, phosphorus, ALP, 24-h urinary calcium, 25(OH)D) and imaging data (ultrasonography, scintigraphy, CT/MRI scan, DXA) were analyzed.

Results
Three hundred ninety-four patients were included in the final analysis. Median age was 60 years with 94.2% being women. Symptomatic disease was evident in 222 (56.4%) patients, asymptomatic in 172 (43.6%). Skeletal involvement was more common for women, while frequency of other manifestations did not differ in both genders. There was no difference between symptomatic and asymptomatic patients in age. Serum iPTH level was higher in symptomatic patients (202.9 and 181.0 pg/mL, P = 0.022). Serum 25(OH)D level was estimated in few patients and negatively correlated with PTH (r = ¯0.294, P = 0.005), iCa (r = ¯0.268, P = 0.010) and total Ca (r = ¯0.284, P = 0.014) levels. Manifestations of CVD were observed in 67.7% of cases and affected equally both symptomatic and asymptomatic patients (70.7 and 63.4%, P = 0.076). Both age and BMI were higher in patients with CVD, whether or not they were symptomatic (62 and 53 years, P < 0.0001; 30.4 vs 26.0 kg/m2, P < 0.0001, respectively).

Conclusions
This experience illustrates that symptomatic phenotype is still the most common form of PHPT.
Clinical data and basal gonadotropins in the diagnosis of central precocious puberty in girls
Authors: Durá-Travé Teodoro , Gallinas-Victoriano Fidel , Malumbres-Chacon María , Ahmed-Mohamed Lotfi , -Guindulain María Jesús Chueca , Berrade-Zubiri Sara 
Published: January 2021

Objective
The objective of this study was to analyze whether some auxological characteristics or a single basal gonadotropin measurement will be sufficient to distinguish the prepubertal from pubertal status.

Methods
Auxologycal characteristics were recorded and serum LH and FSH were measured by immunochemiluminescence assays before and after GnRH stimulation test in a sample of 241 Caucasian girls with breast budding between 6- and 8-years old. Peak LH levels higher than 5 IU/L were considered a pubertal response. Area under the curve, cut-off points, sensitivity, and specificity for auxologycal variables and basal gonadotropins levels were determined by receiver operating curves.

Results
There were no significant differences in age at onset, weight, height, BMI and height velocity between both groups. Bone age was significantly higher in pubertal girls (P < 0.05), although with limited discriminatory capacity. The sensitivity and specificity for the basal LH levels were 89 and 82%, respectively, for a cut off point of 0.1 IU/L. All girls in the pubertal group had a basal LH higher than 1.0 IU/L (positive predictive value of 100%). There was a wide overlap of basal FSH and LH/FSH ratio between prepubertal and pubertal girls.

Conclusions
Auxologycal characteristics should not be used only in the differential diagnosis between prepubertal from pubertal status in 6- to 8-year-old girls. We found a high specificity of a single basal LH sample and it would be useful for establishing the diagnosis of puberty in this age group, reducing the need for GnRH stimulation testing.
Akad Wakalah Menjadi Penyebab Pembiayaan Murabahah Bergeser Dari Transaksi Jual Beli Menjadi Transaksi Jasa
Authors: Azis Abdul , Muslim Mochamad Bukhori , Hidayah Nur 
Published: January 2021

This paper examines the wakalah contract as the cause of the shift of murabaha financing from buying and selling transactions to service transactions. Analysis of wakalah legal norms with normative philosophical approaches, normative juridical and empirical juridical. The wakalah contract given by Islamic banks absolutely to customers to make purchases has caused murabaha financing to shift from buying and selling transactions to service transactions, because the customer has acted for and on behalf of himself in purchasing goods from suppliers, while the money transferred by the bank sharia to customers is considered as borrowed money. A wakalah contract that does not have any effect on transactions on customers in purchasing goods from suppliers, cannot be called wakalah but has the effect of transferring money from Islamic banks to customers as service transactions
Vestibular, Gaze, and Balance Disorders in Asymptomatic Congenital Cytomegalovirus Infection
Authors: Pinninti Swetha , Christy Jennifer , Almutairi Anwar , Cochrane Graham , Fowler Karen B. , Boppana Suresh 
Published: January 2021

BACKGROUND AND OBJECTIVES:Congenital cytomegalovirus (cCMV) is the leading nongenetic cause of sensorineural hearing loss and developmental disabilities. Because there are limited data from studies of vestibular involvement in select groups of children with cCMV, the true frequency of vestibular disorders in cCMV is likely underestimated. Our objective for this study is to determine the prevalence of vestibular, gaze, and balance disorders in a cohort of children with asymptomatic cCMV.METHODS:Comprehensive vestibular, gaze, and balance assessments were performed in 40 children with asymptomatic cCMV. The function of semicircular canals of the inner ear and vestibulo-visual tract were assessed by measuring vestibulo-ocular reflex in a computer-driven motorized rotary chair; inner ear saccular function was assessed by using cervical vestibular evoked myogenic potential; gaze stability during head movement was assessed by using clinical dynamic visual acuity, and balance was assessed by using the sensory organization test and the Bruininks-Oseretsky Test of Motor Proficiency, Second Edition. Test results for each variable were compared with those of a control group without cCMV and/or compared to age-matched normative published data.RESULTS:Vestibular disorders were evident in 45% of the cohort on the basis of rotary chair and cervical vestibular evoked myogenic potential testing, suggesting abnormalities in semicircular canals, the utricle and saccule of the inner ear, and vestibulo-visual tracts. Additionally, 46% of the cohort had difficulties maintaining gaze during head movement, and one-third to one-half of the cohort had difficulties maintaining balance.CONCLUSIONS:Vestibular, gaze, and balance disorders are highly prevalent in children with asymptomatic cCMV. Systematic screening for vestibular disorders will be used to determine the full clinical impact for the development of effective interventions.
Population biology and sexual dimorphism in the freshwater prawn Atya scabra (Decapoda: Atyidae) in the De Contas River, Bahia, Brazil
Authors: De Barros Matheus Souza Ferreira , Calado Tereza Cristina dos Santos , Dos Santos Ewerton Vieira , Silva Alberis Santos , Albuquerque Letícia Gomes de Andrade 
Published: January 2021

Abstract. Introduction: Crustaceans have economic and ecological importance and the role of caridean crustaceans in lentic environments is crucial to maintain the trophic structure. The species Atya scabra is occasionally associated with fisheries, especially in Northeast and Northern Brazil. Objective: To determine the population structure, reproductive period, patterns of growth and distribution of size classes among sexes in a population of the prawn A. scabra in the De Contas River, Bahia, Brazil. Methods: Individuals were sampled in a period of one year by passing sieves through marginal vegetation and using dragnets. In the laboratory, we recorded the sex of the individuals and measured them using a pachymeter with 0.001 mm precision. The dimensions measured were CL (carapace length), TL (total length) and CW (carapace width). In order to analyze data, linear models for the relationships CL × CW were constructed and the type of allometry for each sex was determined. Individuals were grouped into size classes of 5 mm intervals. A chi-square test (χ2) was used to test deviation from the 1:1 sex ratio. The proportion of ovigerous females was registered for each month to determine the breeding period. Results: A total of 517 individuals were collected, 328 were males and 186 females of which 169 were ovigerous. Males showed a polymodal distribution in size classes and were significantly larger than females, which presented a unimodal distribution in size classes. The observed growth patterns demonstrated that both sexes present negative allometry. However, sexual dimorphism was detected when comparing the growth parameters. Ovigerous females were sampled the entire year and size-frequency data demonstrated that recruitment also occurs throughout the year, which allowed us to classify their reproduction as continuous. Conclusions: Our data is essential to draw sustainable fishery management strategies. We suggest a minimum capture size of 70 mm and capture restrictions from May to August.
Key words: ecology; freshwater; limnology; conservation; morphometry.
Dakwah Simbolik Pada Kaos Izma Muslim Store
Authors: Fasya Fakhri Ghiffari , Fasya Fakhri Ghiffari 
Published: January 2021

Dakwah pada bidang fhasion merupakan salah satu pilihan media yang beru. Izma Muslim Store merupakan brand kaos bertema dakwah. Desain atau simbol pada kaos Izma Muslim merupakan pesan dakwah yang disampaikan secara kreatif. Penelitian ini bertujuan untuk 1) mengetahui kategorisasi pesan dakwah yang terkandung dalam kaos Izma Muslim dan 2) mnggambarkan manfaat menggunakan kaos dakwah. Metode penelitan yang digunakan dalam penelitian ini adalah metode deskriptif. Teknik pengumpulan data yang digunakan adalah teknik observasi, dokumentasi dan wawancara. Pendekatan penelitian yang digunakan dalam penelitian ini adalah pendekatan semiotika. Hasil penelitian ini menunjukan bahwa Izma Muslim Store menyampaikan pesan Aqidah, Syari’ah dan Akhlaq dalam desain atau simbol kaos yang dibuatnya, dan pembeli kaos pula merasakan manfaat yang sangat baik terhadap interpretasi pesan yang terdapat pada desain tersebut.
Da'wah in the fhasion field is one of the most popular media choices. Izma Muslim Store is a da'wah theme shirt. The design or symbol on the Izma Muslim shirt is a missionary message that is delivered creatively. This study aims to 1) find out the categorization of da'wah messages contained in Izma Muslim shirts and 2) describe the benefits of using da'wah shirts. The research method used in this research is descriptive method. Data collection techniques used are observation, documentation and interview techniques. The research approach used in this study is the semiotic approach. The results of this study indicate that Izma Muslim Store conveyed the message of Aqidah, Syari'ah and Akhlaq in the design or symbol of the t-shirt it made, and t-shirt buyers also felt very good benefits for the interpretation of the message contained in the design.
Thermodynamic analysis of chromium reduction from oxide Cr<sub>2</sub>O<sub>3</sub>
Authors: Kuznetsov Yu. S. , Kachurina O. I. 
Published: January 2021

Thermodynamic analysis of chromium reduction from its oxide in gas phase Н2 – Н2О – СО – СО2 in contact with carbon was performed. Oxidation potential (pO2 ) was determined by two nomograms in the coordinates and taking into account condition normalizations xH2O + xH2 + xCO2+ xCO = 1. In calculations, possible parameters of reduction of chromium from Cr2O3 oxide were determined by ratio of dissociation elasticity of the oxide and oxidation potential of the gas phase. In the СО – СО2 – С system, chromium is reduced at temperature of 1505 K if xCO > 0.9995. At this temperature, Cr2O3 compound is reduced in water gas of the following composition xH2 = 0.0186, xH2O = 0.28·10–4, xCO = 0.9809, xCO2 = 4.86·10–4, for which the oxidation potential is equal to dissociation elasticity of oxide With an increase in hydrogen concentration from 0.0186 to 0.99, oxidation potential of water gas in contact with carbon decreases by four orders of magnitude to This should lead to a significant increase in reduction rate. In such a gaseous atmosphere, it is possible to reduce chromium at temperature of 1230 K. It is technologically simple to obtain reducing water gas and at the lowest cost, for example, by heating water vapor in contact with carbon. It is shown that at temperature of 1500 K water gas is obtained with traces of Н2О and СО2 compounds with parameters xH2 = 0.4999, xCO = 0.4996, Oxidizing potential of such a gas is less than that of chromium oxide, and this difference significantly increases with increasing temperature.
Collector for Copper-Arsenic Ore Flotation
Authors: Ryaboy V. I. , Shepeta E. D. 
Published: January 2021

Copper and scheelite concentrates are produced from scheelite-sulfide ores of the Vostok-2 deposit at the Primorsky processing plant. Chalcopyrite, gold, silver, and harmful impurities (arsenopyrite, pyrrhotite) are extracted into the copper concentrate. As a collector, dialkyldithiophosphate-type IMA-I413p reagent is used. Bulk sulfide concentrate is produced using activated carbon and trisodium phosphate; copper cleaner flotation is carried out in the medium of ferrous sulfate. The commercial copper concentrate contains 16 % copper, 33 g/t gold, and 280 g/t silver. The recovery of the metals is 67.6, 44.7, and 50.1 %, respectively. The weight fraction of arsenic in the ore fluctuates in the range of 0.04–0.25%, and that in the concentrate, 0.7–2.3 %. The enterprise looks for ways to increase recovery of the valuable metals and decrease content of arsenic in the copper concentrate to below 1% at the expense of increasing contrast in the separation of chalcopyrite from iron sulfides/arsenopyrite/pyrrhotite. For solving this problem, we performed a study of flotation properties of sulfide collectors based on dialkyldithiophosphates: BTF-15221, BTF -271, non-ionic collector Reaflot-277, and combinations of Reaflot-277 and IMA-I413p. Applying BTF-15221 collector allowed, as compared to the standard IMA-I413p reagent, to increase recovery of copper, gold, and silver and reduce arsenic content in the copper concentrate. The higher selectivity of BTF-15221 as compared to IMA-I413p was confirmed by the fact that the bulk of the increase in copper recovery and decrease in the weight fraction of arsenic in the copper concentrate was achieved in the selective cycle. Besides, during the study, surface activity and hydrophobizing ability of the water-soluble collectors were assessed. Using the example of BTF-15221, it was shown that improvement of the reagent collecting properties can be achieved not only due to increasing the surface activity of the reagent, but also at its decrease – in case of sufficient hydrophobizing ability of the reagent, close to that of the standard reagent. By adjusting these parameters through the use of low-molecular weight homologues of the main components, it is feasible to increase or decrease the selectivity and collecting ability of the reagent. Collector BTF-15221 is of practical interest for further testing in flotation of copper-arsenic and other ore types.
Prospects for development of Sadon deposits by in-situ leaching
Authors: Garifulina I. Y. , Abdulkhalimov A. H. , Zaseev I. A. , Maystrov Yu. A. 
Published: January 2021

The information on history of in-situ metal leaching method (ISL) was given. The role of Russian scientists and research organizations in research into ISL processes was shown. Examples of ISL application at the mines of the USSR, the CIS and non-CIS countries with the implementation features were given. The main disadvantages of ISL were formulated: low rate of metal production and difficulty in monitoring the completeness of metal recovery into pregnant solution. It was noted that underground leaching of even well-crushed ores lasts for many years. This, under otherwise equal conditions, decreases attractiveness of ISL in comparison with traditional methods of metal mining. Well-known and new promising methods of the leaching process intensification for increasing the rate of metal extraction into solution were described. As illustrated by the North Caucasian deposits of the Sadon group, the expediency of ISL use for extracting the residual reserves, which would not be extracted by the traditional methods, was shown. The role of Professor I. A. Ostroushko in development and implementation of methods for extracting metals remained in the mined-out space of mines, in particular, by extracting metals from the Sadon deposits wastewater. Information on the current state of ISL application was given. The conclusion was made about insufficient use of this promising method in mining in some regions. For the first time, the details of the ISL general concept were clarified: the feasibility of ISL use not only in favorable conditions, but also at non-continuous geology and mineralization; ISL applicability for not only substandard ores (non-extractable by traditional mining methods), but also for balance reserves; ISL (block leaching) was proposed as an alternative to traditional mining methods in specific conditions, for example, at the North Caucasian complex ore deposits.
Analysis of energy performance of heading sets of equipment at a coal mine
Authors: Sadridinov A. B. 
Published: January 2021

The growth of volume of tunneling, power supplied per job, and consumption of fuel and energy resources makes it necessary to increase energy performance of production processes with reducing energy losses. Tunneling conditions are determined by a combination of mutually influencing factors (geological, technological and organizational), and assessing their impact on tunneling energy performance requires a deep detailed study. For criterion assessment of tunneling performance, indicators of energy consumption, performance, and quality of tunneling performed by shift crews, allowing to objectively assess their work, were proposed. Indicators of process and specific power consumption in the process of tunneling vary over a wide range, therefore, to ensure smooth equipment operation, shift crews must adhere to the recommended indicators that determine the optimum rates of tunneling and enables adherence to permissible operation modes. Statistical models of energy performance indicators of heading sets of equipment operation were investigated using the example of the Severnaya coal mine. Indicators of energy consumption, energy performance, and tunneling (on shift basis) were proposed. Distribution laws have been determined for the main indicators characterizing tunneling energy performance. Recommendations have been developed to ensure sustainable operation of heading sets of equipment throughout the entire period of tunneling. Tunneling requires permanent monitoring its parameters and rates of advance, the quality of face preparation, timely maintenance and repair of machinery and equipment, control of the process through ensuring optimal operating modes of the heading sets of equipment.
BORDER GUARDS’ COMPETENCE IN ENGLISH PROFESSIONAL TERMINOLOGY: CHALLENGES AND POSSIBLE SOLUTIONS
Authors: Žukova Marina 
Published: January 2021

Knowledge of English professional terminology is one of the predominant factors for border guards’ successful professional performance during both border and immigration control carried out at their national state border and inside the country and also joint operations organised and implemented by the European Border and Coast Guard at the EU external borders. The present article suggests an overview of the results of the measures taken by the State Border Guard of Latvia in 2017-2020 to facilitate the improvement of Latvian border guards’ competence in English professional terminology. Based on the results of the survey the author puts forward suggestions for possible improvements in English language training and testing for border guards.
DEFINITION OF TERRORISM AND EU COUNTER-TERRORISM POLICY
Authors: Vasiliauskienė Violeta , Vasiliauskas Martynas 
Published: January 2021

The article dwells on the problem of the definition of terrorism. This term, though usually commonly understandable, is a legal term, the definition of which is not yet universally adopted. The threat of terrorism, taking upon different forms, is always relevant and the efforts to contain it continue. Thus the definition of the phenomenon and its elements is crucial in such efforts. The analysis is relevant as internationally this term is still not defined in one universal legally binding document and there are questions on its exact scope. The article explains two elements that are usually considered essential in defining terrorism. Furthermore, the article dwells on the EU efforts to contain the threat and in particular on its efforts to prevent terrorism – that is, actions taken to counter terrorist radicalisation.
Assessment of tuberculocidal efficiency of disinfectants according to manufacturers’ 'instructions and results of experimental studies using reference test strain mycobacterium terrae
Authors: Sergevnin V. I. , Tukacheva O. V. , Sibiryakova О. R. , Sarmometov E. V. , Ovchinnikov K. V. 
Published: January 2021

Objective. The aim of the study was to investigate the tuberculocidal efficacy of disinfectants according to the manufacturers instructions and the results of experimental studies using a test strain of Mycobacterium terrae.
Materials and methods. The instructions for 150 disinfectants (DS) were studied. An experimental evaluation of the tuberculocidal efficacy of 6 DS was carried out using the reference strain M. terrae.
Results. A study of the documentation for the DS showed that from the number of DS produced before 2010, only 38.2 % of the drugs were recertified after 2010. Of these, only in 50.0 % of cases it was noted in the instructions that the recertification was carried out using the test microorganism M. terrae. From the number of DS produced after 2010, only 49.2 % of the drugs were certified using the M. terrae test strain. According to the results of laboratory assessment of DS, it was shown that drugs that did not pass re-certification using M. terrae have low tuberculocidal efficacy.
Conclusions. It has been established that many manufacturers of DS during certification and recertification of drugs do not test the modes of their tuberculocidal efficacy on the regulated microorganism M. terrae. In the course of laboratory assessment of the tuberculocidal effect of DS, it was confirmed that the least effective drug was the one that did not pass re-certification using M. terrae.
Temiz Aralıklı Kendi Kendine Kateterizasyonda Özgüven Ölçeği Türkçe formunun geçerlik ve güvenirliği
Authors: ÇULHA Yeliz , ACAROĞLU Rengin 
Published: January 2021

Amaç: Çalışma, Temiz Aralıklı Kendi Kendine Kateterizasyonda Öz Güven Ölçeği Türkçe formunun geçerlik ve güvenirliğini incelemek amacı ile planlandı.
Gereç ve Yöntem: Metodolojik araştırma tipinde planlanan çalışmanın örneklemini Aralık 2018- Temmuz 2019 tarihleri arasında İstanbul’da bir eğitim ve araştırma hastanesinin Üroloji Polikliniği’nde takip edilen 80 hasta oluşturdu. Ölçeğin dil eş değerliği, çeviri-geri çeviri teknikleri ile sağlandı. Kapsam geçerliği, Kapsam Geçerlik İndeksi (KGİ) ile değerlendirildi. Yapı geçerliği, varimaks rotasyonu uygulanarak açıklayıcı faktör analizi ile belirlendi. Ölçeğin güvenirliği, zamana göre değişmezliği ve iç tutarlık (Cronbach alfa ve madde analizi) katsayısı incelenerek değerlendirildi.
Bulgular: Ölçeğin Türkçe formunun kapsam geçerliği KGİ=0,85 bulundu. Yapı geçerliği değerlendirildiğinde, Kaiser Meyer Olking (KMO) değeri 0,844 ve Barlett’s Testi Ki Kare Değeri 1932,52 (p