bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hypertension in Pregnancy: Unanswered Questions
Authors: Papademetriou Vasilios , Stavropoulos Konstantinos , Patoulias Dimitrios , Papadopoulos Christodoulos , Georgios Kerpiniotis , Toumpourleka Maria , Sachinidis Alexandros 
Published: September 2021

Background:
Hypertension of pregnancy [office blood pressure (BP) levels≥140/90 mmHg] is fairly
common and can affect up to 10% of pregnant women worldwide. Hypertension of pregnancy is an important
risk factor for the mother and carries increased morbidity and mortality for the fetus. Women with hypertension
of pregnancy have a high-risk for future cardiovascular and renal events.

Objectives:
To summarize the literature related to several clinical aspects of hypertension in pregnancy and
draw clinically meaningful conclusions.

Methods:
We conducted an in-depth review of the literature to retrieve existing data on the definition, epidemiology,
classification, and management of hypertension in pregnancy.

Results:
All pregnant women with hypertension should have a proper diagnostic workup and be treated appropriately.
In women with mild hypertension, BP therapeutic target should be set to 110-140/80-85mmHg. In women
with severe hypertension, BP should be reduced by at least 25% as soon as possible, and gradually thereafter
to normal target levels of <140/105mmHg. In terms of preeclampsia, physicians need to consider potential
complications and formulate prevention strategies. The choice of antihypertensive medication is crucial since
certain classes can be detrimental to the fetus and should be avoided. Post-partum, the choice of antihypertensive
therapy of the mother should take into consideration breastfeeding of the fetus. Given the life-long cardiovascular
risk of women with pregnancy hypertension, a regular cardiovascular evaluation is in order.

Conclusion:
Albeit the antihypertensive treatment exerts significant benefits for both the mother and the baby,
several clinical aspects remain un-tackled. More research is needed to further improve the treatment of such disorders.
The Role of Polyvinylpyrrolidone as a Potential Fluorophore for the
Detection of Nitroaromatic Explosives
Authors: Pattathil Shruthy D. , Ture Satish A. , Martinez-Manez Ramon , Abbaraju Venkataraman 
Published: September 2021

Background:
Detection of explosives (Nitroaromatic compounds) is one of the major
issues faced in global security and, to date, remains a challenge even though some materials are
developed for their detection. This study introduces the use of polyvinylpyrrolidone (PVP), a nonconjugated
conducting polymer, as a potential fluorophore for sensing nitroaromatics. The stimuliresponse
of fluorescence of PVP on interaction with energetic nitroaromatics was investigated in
the present study.

Methods:
Fluorescence quenching studies of 5% PVP was carried out by the addition of varying
concentration of quenchers (m-dinitrobenzene, trinitrobenzene and 2,4,6-trinitrophenol). To study
the effect of different solvents on fluorescence quenching, two different solvents were used, i.e.,
water and ethanol. The quenching studies of PVP with dinitrobenzene and trinitrobenzene were
carried out in ethanol and 2,4,6-trinitrophenol was carried out in the water.

Results:
The maximum emission peak intensity of PVP was observed at 445 nm in ethanol and 420
nm in water, which was quenched upon the gradual addition of quenchers. This shift in maximum
peak intensity of PVP was understood from the change in the solvent polarity. UV-Visible and FTIR
studies were also carried out to understand the nature of interaction taking place between the
quenchers and PVP. The limit of detection (LOD) was observed as 1.8x10-3 M, 2.5x10-6 M, and
3.9x10-6 M for picric acid, dinitrobenzene and trinitrobenzene, respectively.

Conclusion:
The results envisage PVP as a potential candidate for sensing energetic nitroaromatics
with good sensitivity.
Pacemaker Induced Cardiomyopathy: An Overview of Current Literature
Authors: Gavaghan Callan 
Published: September 2021

:
Pacemaker Induced Cardiomyopathy (PICM) is commonly defined as a reduction in left
ventricular (LV) function in the setting of right ventricular (RV) pacing. This condition may be associated
with the onset of clinical heart failure in those affected. Recent studies have focused on potential
methods of identifying patients at risk of this condition, in addition to hypothesizing the
most efficacious ways to manage these patients. Newer pacing options, such as His bundle pacing,
may avoid the onset of PICM entirely.
Influence of technical and technological equipment of a locomotive maintenance point on the capacity of a railway line
Authors: Mekhedov M. I. , Kornienko N. V. 
Published: September 2021

Stable operation of railway transport is of decisive importance in the development of the country's economy. Railway stations of the Russian Railways network perform a significant amount of work on processing and handling train traffic.Large technical stations on the Russian Railways network in most cases are located at the junction of railways (railway polygons), where locomotive crews and locomotives changes take place as well as various types of traction (electrified lines with direct and alternating current).With the development of polygon technologies on the Russian Railways network, it becomes necessary to optimize the traction resource management process to ensure the stable operation of train traffic from its origin to the point of its destination. At technical stations with locomotive turnover points, they are changed, as well as maintenance (TO-2) and equipment.The article discusses in more detail one of the elements of the daily budget for the use of locomotives — finding locomotives in one of the types of downtime — at the locomotive maintenance point. As an example of the queuing of traction resources, the point of maintenance of locomotives of the Karymskaya station is given, where the stalls for performing TO-2 are one of the types of devices of the locomotive economy, according to which the available capacity of the locomotive circulation section is determined. Based on the analysis of the results of the operation of the locomotive maintenance point of the Karymskaya station for 2017, a method has been developed that allows, using in the calculations the minimum interval for the supply of trains to the station, to determine the rational number of stalls mст, necessary for the development of promising volumes of freight transportation and increasing the capacity of railway lines.
Scientific center “Express” of the JSC “VNIIZHT”: history and modernity
Authors: Zubkova E. A. , Karpeeva T. A. 
Published: September 2021

The article reflects the most important areas of work of scientists and employees of the scientific center “Express” and their contribution to the formation and development of information technology since the founding in 1959 of the Department of computer science of the All-Union Scientific Research Institute of Railway Transport and up to the present.Theoretical foundations of the application of transport cybernetics in the national economy of the country were created by Corresponding Member of the Academy of Sciences of the USSR A. P. Petrov, who was one of the first to use mathematical methods and computing technology in solving transport problems and headed the development in this direction at the institute. The practical work on the creation of the first domestic automated system for selling tickets for trains, called “Express”, was headed by B. E. Marchuk.Since then, the “Express” system has transformed from a local ticketing system at the Kievsky railway terminal in Moscow into a powerful multifunctional international passenger traffic management system that interacts with the ticket reservation systems of European countries.Theoretical and practical developments carried out by the scientific center have resulted in the introduction of new information technologies in the Russian Railways holding and in the railway administrations of the member states of the Commonwealth.At present, the main activities of the staff of the scientific center are the creation of automated control system “Express” of a new generation (ACS “Express” NP) and the system of international integration of passenger transportation Express International.
Consumer Perspectives on Maternal and Infant Health Apps: Qualitative Content Analysis
Authors: Biviji Rizwana , Williams Karmen S , Vest Joshua R , Dixon Brian E , Cullen Theresa , Harle Christopher A 
Published: September 2021

Background
Despite the popularity of maternal and infant health mobile apps, ongoing consumer engagement and sustained app use remain barriers. Few studies have examined user experiences or perceived benefits of maternal and infant health app use from consumer perspectives.

Objective
This study aims to assess users’ self-reported experiences with maternal and infant health apps, perceived benefits, and general feedback by analyzing publicly available user reviews on two popular app stores—Apple App Store and Google Play Store.

Methods
We conducted a qualitative assessment of publicly available user reviews (N=2422) sampled from 75 maternal and infant health apps designed to provide health education or decision-making support to pregnant women or parents and caregivers of infants. The reviews were coded and analyzed using a general inductive qualitative content analysis approach.

Results
The three major themes included the following: app functionality, where users discussed app features and functions; technical aspects, where users talked about technology-based aspects of an app; and app content, where users specifically focused on the app content and the information it provides. The six minor themes included the following: patterns of use, where users highlighted the frequency and type of use; social support, where users talked about receiving social support from friends, family and community of other users; app cost, where users talked about the cost of an app within the context of being cost-effective or a potential waste of money; app comparisons, where users compared one app with others available in app stores; assistance in health care, where users specifically highlighted the role of an app in offering clinical assistance; and customer care support, where users specifically talked about their interaction with the app customer care support team.

Conclusions
Users generally tend to value apps that are of low cost and preferably free, with high-quality content, superior features, enhanced technical aspects, and user-friendly interfaces. Users also find app developer responsiveness to be integral, as it offers them an opportunity to engage in the app development and delivery process. These findings may be beneficial for app developers in designing better apps, as no best practice guidelines currently exist for the app environment.
Emotional Analysis of Twitter Posts During the First Phase of the COVID-19 Pandemic in Greece: Infoveillance Study
Authors: Geronikolou Styliani , Drosatos George , Chrousos George 
Published: September 2021

Background
The effectiveness of public health measures depends upon a community’s compliance as well as on its positive or negative emotions.

Objective
The purpose of this study was to perform an analysis of the expressed emotions in English tweets by Greek Twitter users during the first phase of the COVID-19 pandemic in Greece.

Methods
The period of this study was from January 25, 2020 to June 30, 2020. Data collection was performed by using appropriate search words with the filter-streaming application programming interface of Twitter. The emotional analysis of the tweets that satisfied the inclusion criteria was achieved using a deep learning approach that performs better by utilizing recurrent neural networks on sequences of characters. Emotional epidemiology tools such as the 6 basic emotions, that is, joy, sadness, disgust, fear, surprise, and anger based on the Paul Ekman classification were adopted.

Results
The most frequent emotion that was detected in the tweets was “surprise” at the emerging contagion, while the imposed isolation resulted mostly in “anger” (odds ratio 2.108, 95% CI 0.986-4.506). Although the Greeks felt rather safe during the first phase of the COVID-19 pandemic, their positive and negative emotions reflected a masked “flight or fight” or “fear versus anger” response to the contagion.

Conclusions
The findings of our study show that emotional analysis emerges as a valid tool for epidemiology evaluations, design, and public health strategy and surveillance.
Nghiên cứu công nghệ chế biến trà túi lọc từ vỏ bưởi Năm Roi (Citrus grandis (L.) Osbeck)
Authors: Trúc Trần Thanh , Mai Thành Thái , Mai Diễm Trinh , Tuân Nguyễn Trọng 
Published: September 2021

Mục tiêu của nghiên cứu là thiết lập quy trình công nghệ chế biến trà túi lọc từ vỏ bưởi Năm Roi (Citrus grandis L. Osbeck). Nội dung nghiên cứu bao gồm: (i) khảo sát ảnh hưởng của điều kiện tiền xử lý (chần, ngâm muối NaCl) nguyên liệu nhằm giảm vị đắng và duy trì chất lượng trà; (ii) xác định điều kiện chế biến (sấy sơ bộ, sao rang) phù hợp cho sản phẩm; (iii) đánh giá chất lượng của sản phẩm theo các tiêu chuẩn hiện hành. Kết quả nghiên cứu cho thấy vỏ bưởi Năm Roi được chần trong nước sôi (100°C) với thời gian 60 giây giúp duy trì được màu xanh, đồng thời giúp sản phẩm có giá trị polyphenol tổng số (TPC), flavonoids tổng số (TFC), hoạt tính kháng oxy hóa tính tương đương Trolox (TEAC) cao. Sau quá trình chần, việc ngâm trong dung dịch muối NaCl 10% (tỷ lệ 1:5 w/v) sau đó xả lại với nước (tỷ lệ 1:4, w/v) giúp loại bỏ được tác nhân gây đắng trong khi kiểm soát được các thành phần có hoạt chất sinh học. Sấy sơ bộ ở nhiệt độ 60°C trước khi sao khô ở nhiệt độ 140°C đến độ ẩm cuối của sản phẩm 8% giúp duy trì màu sắc và chất lượng sản phẩm. Sản phẩm trà vỏ bưởi Năm Roi an toàn, không có sự hiện diện độc tố,...
Luật số lớn cho quá trình khuếch tán trong không gian một chiều
Authors: Lộc Trần Phước , Chương Lâm Hoàng , Kim La My , Thien Tran Thi 
Published: September 2021

Mục tiêu chính của bài báo là nghiên cứu mô hình quá trình khuếch tán trong một chiều. Phương pháp moment được sử dụng như trong các bài báo Depauw and Derrien (2009) và Lam (2014) để chứng minh sự hội tụ theo xác suất đến một hằng số của quá trình đang xét (Định lý 1.1). Chi tiết hơn, với là toán tử cực vi của quá trình đã cho và hàm cho trước, bằng cách giải phương trình Poisson rồi sau đó tìm giới hạn liên quan đến nghiệm của nó, một dạng của luật số lớn sẽ được cho bởi sự hội tụ của các moment.
Ruralidad y estrategias adaptativas: producción de papa y leche en dos localidades de la región centro de Veracruz
Authors: Vallejo Román Janett , Moreno Andrade Saúl Horacio 
Published: September 2021

<span>El objetivo central de este trabajo consiste en describir y analizar las distintas estrategias adaptativas que permiten la permanencia de actividades socioeconómicas tradicionales, el cultivo de papa y la producción de leche, en localidades del centro de Veracruz. Estas actividades han mostrado cambios importantes derivados de las políticas neoliberales que han sido poco favorables para el sector agropecuario de pequeña escala. A decir, los elevados costos de los insumos, el bajo precio y las dificultades para comercializar sus productos. Todo esto ha provocado un escenario poco alentador entre los “rancheros” de la región. A partir del trabajo etnográfico, podemos sostener que la permanencia de estas actividades, en términos económicos, ha sido posible dada la diversidad de actividades, no necesariamente agropecuarias, que realizan los miembros de los hogares rurales. Es decir, la pluriactividad que se observa en las sociedades rurales actuales, permite explicar la continuidad de actividades económicas, actualmente complementarias, pero que hasta hace un par de décadas eran primarias y sustantivas para su sobrevivencia. Por otra parte, este estudio permite conocer aspectos culturales de larga data, de identidad y arraigo, que giran en torno a la producción papera y a la producción láctea, y que definen una forma particular de habitar estos espacios.</span>
Adsorbsi Ion Logam Cu (II) Menggunakan Biomassa Daun Genjer (Limnocharis flava)
Authors: Febriani Helni , Puspitasari Dwi Juli , Ruslan  , Sosidi Husain 
Published: September 2021

The adsorption of Cu (II) ions by Genjer (Limnocharis flava) biomass has been carried out. This research aims to determine the optimum pH of the plant and the contact time between the metal ion Cu (II) with the plant that produces the highest absorption, as well as knowing the best adsorbent mass for absorption between Cu (II) metal ions and genjer plants. The study used a completely randomized design (CRD) with variables of pH, contact time, and adsorbent mass. The testing of the absorption of the Genjer leaves biomass against Cu (II) was carried out with Atomic Adsorption Spectrophotometric (AAS). The results showed that the optimum absorption produced was 83.34% at pH 4, and 91.54% with the highest contact time of 30 minutes, and 82.04% with an adsorbent mass of 1 gram.
Keywords: Limnocharis flava, pH, contact time, adsorbent mass, adsorption, Cu (II) ion
Elektroplating Grafena-Polianilina pada Stainless Steel sebagai Elektroda pada Elektrolisis Air untuk Produksi Hidrogen
Authors: Gani Rahmiani , Adawiah Syarifah Rabiatul , Nur Arfiani 
Published: September 2021

Hydrogen production by water electrolysis can be optimalized by improve the working electrode. Stainless steel as working electrode was coated with graphene and polyaniline by using cyclic voltammetry method with Ag/AgCl as reference electrode and Pt as counter electrode. Coated electrodes were characterized by SEM-EDS and cyclic voltammetry method. Furthermore, the synthesized electrode was applied for water electrolysis by adding 1- 5 g/L NaHCO3. The characterization data showed that Stainless steel/Graphene-Polyaniline electrode can be synthesized by using cyclic voltammetry. The coating process was conducted at sweeping rate 10 mV/s on voltage -0.2 to 0.8 V for 10 cycles. The voltammograms showed that the highest cathodic peak current of electrolysis obtained at 0.491 mA by addition 2 g NaHCO3 on SS/G-PANi0,5 electrode, and the highest anodic peak current obtained at 0.191 mA by addition 2 g NaHCO3 on SS/G-PANi0,5 electrode. Based on the overpotential data, the smallest average potential difference of H+ adsorption obtained by SS/G-PANi1,0 electrode, and the smallest average potential difference of H+ desorption obtained by SS/G-PANi0,5 electrode.
Keywords: Stainless steel, hydrogen production, electroplating, electrocatalyst, electrolysis
Admitting otherwise: Diversity work, contextuality and the future of anthropology
Authors: Mills David 
Published: September 2021

The difficult work of decolonizing UK anthropology teaches us important lessons about our field. Rethinking the curriculum may be the easy part. Making university admissions fairer is a harder task. The biggest challenge of all is transforming the institutional cultures and demographic profile of anthropology’s students and faculty. The Covid-19 pandemic showed that rapid change is possible: its aftermath is an opportunity for more radical rethinking of this diversity work in anthropology.
Many UK universities currently use ‘contextual’ information about undergraduate applicants to make admissions ‘fairer’. Would a more self-reflective understanding of ‘contextuality’ include the institutional contexts of universities themselves? Most social anthropology departments are found in ‘Russell group’ and ‘Sutton-30’ universities. Their student populations are more likely to be able-bodied, white, female and middle class than those in other universities: these students have a disproportionate opportunity to access PhD research funding. The growth in postgraduate education also exacerbates these differences. This paper combines institutional history and student data to reconceputalise and broaden debates around ‘contextual admissions’. Acknowledging the institutional racism within UK universities, a more encompassing definition of ‘contextuality’ would allow a critical attention to the academic cultures that create barriers to widening participation, retention and progression to postgraduate study.
A TRÍADE FORMAÇÃO, MEDIAÇÃO AFETIVA E ORGANIZAÇÃO E SUA INFLUÊNCIA NA COMUNICAÇÃO EM UMA EXPOSIÇÃO ITINERANTE
Authors: Perticarrari André Perticarrari , Augusto Alessandra , Mantoan Paulo Victor Leme 
Published: September 2021

Os espaços não-formais de educação ganham a cada dia mais representatividade na sociedade, como locais de difusão das ciências. Neste trabalho avaliamos o processo de mediação, verificando como a formação reflexiva interferiu naquele processo e na organização da exposição. As visitas foram categorizadas pela metodologia de “Conversas de Aprendizagem” proposta por Sue Allen. Verificamos que a ocorrência de diferentes categorias de conversas variou nos diferentes momentos da exposição, com maior engajamento intelectual e afetivo do visitante, reflexo da atuação dos mediadores e estruturação da exposição. Formação, mediação afetiva e organização formam uma tríade inseparável, e este deve ser foco das instituições que trabalham com a difusão científica.
NÚCLEO DE ESTUDOS DOCENTES COM ENFOQUE CIÊNCIA, TECNOLOGIA E SOCIEDADE NA EDUCAÇÃO INFANTIL: CONTRIBUIÇÕES E PERSPECTIVAS
Authors: Sauerbier Juliana , Viecheneski Juliana Pinto , Silveira Rosemari Monteiro Castilho Foggiatto 
Published: September 2021

Este artigo apresenta os resultados de uma pesquisa de mestrado profissional, do Programa de Pós-Graduação em Ensino de Ciência e Tecnologia da Universidade Tecnológica Federal do Paraná - Campus Ponta Grossa (UTFPR-PG), que foi desenvolvida a partir da implementação de um núcleo de estudos docentes, com enfoque em Ciência, Tecnologia e Sociedade, em um Centro Municipal de Educação Infantil (CMEI), na cidade de Ponta Grossa - PR. A abordagem metodológica foi qualitativa, de natureza interpretativa com observação participante, possibilitando a compreensão de todo o processo investigado. Os participantes foram: 7 professores e 70 alunos, com a faixa etária de 3 a 5 anos; totalizando, assim, 77 colaboradores da pesquisa. O objetivo desse estudo foi verificar quais são as contribuições de um Núcleo de Estudos Docentes na Educação Infantil com enfoque em Ciência, Tecnologia e Sociedade para a Alfabetização Científica e Tecnológica no Ensino de Ciências. A coleta dos dados ocorreu por meio de anotações em diários de campo, relatórios, filmagens, fotografias, áudios, vídeos, questionários, tutoriais e sequências didáticas.Os resultados apontam para a falta de postura reflexiva acerca da ciência e tecnologia e suas implicações na sociedade. Evidenciamos que as discussões devem acontecer desde a Educação Infantil, quando professores dessa etapa de ensino devem conscientizar as crianças sobre os problemas do mundo em que estão inseridos, tornando-os cada vez mais críticos, reflexivos, questionadores e atuantes na sociedade.