bluuebunny/crossref_metadata_2025 huggingface dataset:
Molecular Imaging of Neuroendocrine Tumors by Somatostatin-Receptor Scintigraphy (SPECT/CT) with 99mTc-Tektrotyd
Authors: Slashchuk K. , Rumyantsev P. , Degtyarev M. , Serzhenko S. , Baranova O. , Trukhin A. , Sirota Ya.
Published: April 2020

Neuroendocrine tumors (NETs) are a heterogeneous group of neoplasms constituting about 0.5 % of all cancer cases. In recent years, there has been a significant increase in the incidence of NETs, which is primarily due to the active development and improvement of medical imaging technologies. Successful treatment and prognosis for patients with NETs strongly depend on the stage of the disease. One of the effective methods of visualization and staging NETs in nuclear medicine is somatostin receptor scintigraphy (SRS), which is based on the use of partial somatostatin receptor agonists labeled with radioactive isotopes. The article presents an analysis of 55 patients with NETs of various localizations who underwent scintigraphy and SPECT/CT. Radiopharmaceutical was used as a tracer for SRS. It was prepared on the basis of a lyophilisate developed by Polatom (Poland) — Tektrotyd, labeled with 99mTc. According to the results of the study SRS with 99mTc-Tektrotyd is informative in the topical diagnosis of NETs, especially when PET/CT scan with 68Ga-labeled peptides is not available. Sensitivity varies depending on the NET localization. It is necessary to continue researches on the diagnostic value of SRS with 99mTc-Tektrotyd for tumors, in the pathogenesis of which somatostatin receptors play a significant role.
Biological Effects of Organic and Inorganic Compounds of the Tritium
Authors: Guryev D. , Kochetkov O. , Barchukov V. , Osipov A.
Published: April 2020

The review represents comparative data on the biological effects of inorganic (HTO) and organic (OBT) compounds of tritium at the molecular, cytogenetic and system levels. The data of the relative biological effectiveness (RBE) of OBT and HTO depending on their distribution in the cells and tissues of the body are presented. Experimental studies show that the calculation of the RBE of tritium compounds at different levels of organization leads to contradictory data. Such observation is associated with the interaction both of HTO and OBT with critical biomolecules in the cells as well as the proliferative activity of different cells and tissues. The experiments revealed that the effectiveness of OBT is much higher than the HTO which is associated with their rapid inclusion in the critical biomolecules such as proteins and DNA with the further formation of a significant biological effect. Based on the recently obtained data in different laboratories on the effect of tritium compounds at the molecular and cellular levels, it is concluded that a new approach for HTO and OBT risk assessment is necessary.
Modos de apropiación territorial en Belice: una genealogía institucional de la propiedad
Authors: Hoffmann Odile
Published: April 2020

En Belice, la propiedad de la tierra se instituye en contextos coloniales marcados por una gran precariedad jurídica que desemboca en una gran complejidad político-territorial. El proceso de institución de la propiedad se da en varias fases que corresponden a etapas de la construcción colonial, cada una de las cuales genera distintos modelos de negociación e interacción entre comunidades políticas en torno a la propiedad de la tierra. Mediante revisión documental y entrevistas, se ve cómo las nociones y categorías jurídicas se suceden unas a las otras sin llegar a sustituirse, pero generan configuraciones entrelazadas, empalmes y superposiciones que des­embocan en situaciones de extrema confusión. Para entender las confusiones y sus trasfondos políticos, el artículo propone como método seguir la evolución del saber territorial jurídico a través una genealogía institucional de la propiedad en cuatro etapas, a lo largo de los siglos xix-xx.
Saving Time and Money and Reducing Carbon Dioxide Emissions by Efficiently Allocating Customers
Authors: Haket Christian , van der Rhee Bo , de Swart Jacques
Published: April 2020

In many industries, multifacility service providers can save time and money and reduce carbon dioxide (CO2) emissions by more efficiently allocating customers to their facilities. However, firms incur a reallocation cost when reassigning a customer to a different facility, something that has not received much attention in the literature. Software packages such as CPLEX can find the optimal solution for this type of problem, but managers rarely use them because they lack the specific knowledge, overestimate the cost, and/or underestimate the benefits. Including the reallocation costs, we modeled several common heuristics in Excel’s Visual Basic and compared the results with the optimal solution found by CPLEX. We collaborated with Van Dorp, a large service provider in the Netherlands, and found that (1) substantial savings can be achieved, (2) reallocation costs play a major role, and (3) the best heuristic achieves near-optimal results. Specifically, reallocating Van Dorp’s 20 “worst allocated” customers realizes a savings of more than 4,000 driving hours and €360,000 in cost and a reduction of 41 tons of CO2 emissions.
The Benefits of Integrating Video Making in a Speaking Class
Authors: Riyanto Edi Dwi
Published: April 2020

Integrated teaching has been advocated and implemented for decades. Lately it has been accelerated by the development of video making. This study aims to investigate the benefits of integrating video making in a speaking class of the 29 first semester students of a public university in Surabaya, East Java Province, Indonesia. It employed action research which was done to improve the quality of the teaching and learning process of the class. The data were collected through direct observation in the classroom, video reviews, and survey. The findings showed that the integration of video making in a speaking class gave benefits to students in the form of four components i.e. social, language and literary, psychological, and technical. The class has been successful in integrating the video making in a speaking class which means that the integration may be applied again in the same class in the future or for a wider scope with similar conditions or settings.
English Scholarly Publishing Activities in the Industrial Revolution 4.0: What, Why, and How?
Authors: Turmudi Dedi
Published: April 2020

The presence of the Industrial Revolution (IR) 4.0 has inevitably affected the way how scholars proceed to write. Thus, activities intended to yield a piece of scientific writing facilitated by the obtainability and accessibility of internet browsing is called scholarly publishing. Since English has indisputably become the language of international scholarship and research, it is urgent to have the skill in writing scientific articles benefitting the support from IR 4.0 principles. What is going on with academics and what should they do dealing with the IR 4.0 pertinent to their scholarly writing activities, benefits, and drawbacks. This paper discusses what scholarly publishing in the Industrial Revolution 4.0 and how it supports the process of writing articles for publishing. The purposes of this paper are to explain (1). What are scholarly publishing and industrial revolution? (2). Why is it essential for academics? (3) How does writing scholarly publication in Industrial Revolution 4.0 work? Writing the scholarly publication in English has become obligatory for Teacher-Educator Authors (TEAs) and undergraduate students to doctoral students in Indonesia. The study was a descriptive qualitative library to build a conceptual paper for the purpose of a further study. The method was by reviewing any related kinds of literature to provide sufficient arguments for the three research questions. The outcome is several claims, arguments, and evidence gambits for any author to consider. Theoretically, the IR 4.0 principles have significantly eased the flexibility of the process, the quality, and the credibility of research outputs.
A Review on the Root System of Argania spinosa
Authors: Chakhchar Abdelghani , Lamaoui Mouna , Kharrassi Youssef El , Bourhim Thouria , Filali-Maltouf Abdelkarim , Modafar Cherkaoui El
Published: April 2020

The Argane tree [Argania spinosa (L.) Skeels] is a remarkable essence by its botanical interest, ecological services, and its socio-economic value. This endemic species is known by its adaptive behavior to arid and semi-arid regions where it grows naturally in vast forests in Southwestern Morocco. Although its adaptation has been commonly attributed to various mechanisms in different organs and tissues, whose the root system has a primary role in this whole process. However, the increased aridity and desertification in the Mediterranean region appear to affect the health, growth and functioning of the root system of A. spinosa. In this review, we highlighted morphological aspects and physiological and biochemical mechanisms related to the roots and involved in the abiotic stress tolerance in the Argane tree. The mycorrhizal symbiosis in Argane tree plays a vital role in nutrient uptake and growth of this woody species, ​as well as in the adaptation to its environment. Despite the difficulties encountered in rooting during ​its in vitro propagation, this technique seems to be an attractive alternative for the regeneration of the selected Argane tree.
Growth Performance and Resource Use Efficiency in Cauliflower Production: A Micro level Study
Authors: Kumari Renu , Mishra R.R. , Sinha D.K. , Ahmad Nasim
Published: April 2020

The study gives insights on production performance of one of Bihar’s most important vegetable, the cauliflower. Compound annual growth in area, production and productivity of cauliflower were analyzed to investigate the expansion or shrinkage of the cauliflower in Samastipur district of Bihar as well as for the entire state. In this investigation, resource use efficiency of the respondent farmers were also calculated to know whether the farmers are operating technically, allocatively or cost effectively or not in production of cauliflower in the study area. Significant positive growth in area, production and productivity of cauliflower in Bihar was observed during the period of investigation. The growth in area, production and productivity of cauliflower exhibited almost similar trend in case of Samastipur district. The analysis of resource use efficiency of cauliflower production revealed that the mean level of technical, allocative and cost efficiencies of all the sample respondents were estimated at 0.67, 0.61 and 0.41 which implied that the cauliflower growers could decrease the current input by 33.00%, reduce the cost of production of cauliflower by 39.00% for which they would have to be more aware of relative input prices prevailing in the market, while deciding upon quantum of various inputs, and reduce the current cost of the produce by 59.00% to achieve a potential minimum cost of production relative to the efficient farmers given current level of output. In this way the efficiency scores suggest that there is a considerable scope for decreasing inputs and thereby reducing the cost of production in cauliflower cultivation in the study area. The study pointed out that the farmers in the study area were not properly aware about the package of practices of cultivation of cauliflower and under or over utilizing the resources of productivity causing gap in output of the crop. Proper farmer's field trials and awareness campaigns on improved practices and correct method of use of inputs need to be imparted which will ultimately benefit the producers.
Economics of Chilli Cultivation in Wokha District of Nagaland, India
Authors: Tsopoe James , Murry Nchumthung
Published: April 2020

The present research study was conducted in Wokha district of Nagaland. The study comprises of 60 sample farmers selected by following a multi stage stratified random sampling technique. Socio economic status of the chilli growers in the study area reveals a literacy percentage of 95.74 per cent and the average family size of chilli growers in the study area was found to be 4.35. Earners constitute about 33.33 per cent of the total sample population of the working population, 58.15 per cent of the sampled respondent depends on agricultural and allied activities as their main occupation. From the study on economic analysis of chilli cultivation revealed that on an average per hectare total cost of chilli cultivation was ₹. 1,38,596.67 with a gross income of ₹. 3,00,440.00. The average yield of chilli was found to be 75.00 q per ha. Considering the prevailing price of chilli in the study area which is ₹ 4,000.00 per q the gross income was found that the average net return from chilli cultivation ₹ .1,52 888.66. Out of the total cost, the share of variable cost and fixed cost constitute 93.59 per cent and 6.41 per cent respectively. whereas the benefit cost ratio was found out to be 2.24.
Quality and Safety of Meat Products in Russia: Results of Monitoring Samples from Manufacturers and Evaluation of Analytical Methods
Authors: Vostrikova Natal’ya L. , Zherdev Anatoly V. , Zvereva Elena A. , Chernukha Irina M.
Published: April 2020

Violations in manufacturing and products that do not meet the declared markings are currently an acute problem in ensuring the safety and quality of food. Meat products are often falsified due to the high added value and multicomponent composition. Despite the efforts of regulatory organizations, the covert replacement of various types of meat with cheaper or low-grade compounds is widespread. Consumer societies, individuals, food quality control state institutions are interested in the results of food quality, safety and conformity monitoring. This article presents information on results of food products’ conformity and possible analytical methods used to control meat products’ composition, the results of meat product monitoring as conducted by the V. M. Gorbatov Federal National Center for Food Systems (Moscow, Russia), data on the prevalence of various types of falsification, and proposals to improve the quality and safety control of meat products in Russia. According to the national regulatory framework, which includes national and international safety standards and regulations, has a strict control over the content of a large number of components of a diverse chemical nature is needed. That leads to the development of analytical methods and devices that can reliably evaluate components in food products added even in micro amounts. A direct relationship between the introduction of a new, more accurate method for identifying a product’s components and the reduction in cases of the corresponding fraud has been detected.
An Analysis of GRAP Task Force Directions for Improved AQI in Delhi during 2018
Authors: Singh Yogender , Kulshrestha Umesh
Published: April 2020

Air quality has been a matter of public concern in Delhi. The concentration of Particulate Matters (PM2.5 and PM10) often surpasses the Indian National Ambient Air Quality Standards (NAAQS). This study is focused upon the evaluation of Environment Pollution (Prevention and Control) Authority (EPCAs) Graded Response Action Plan (GRAP) action during 2018 in terms of PM2.5 and NO2. In order to control air pollution sources in National Capital Region (NCR), the (EPCA) Environmental Pollution (Prevention and Control) Authority directed GRAP to advise the local industries and other sources of pollution to close their operations on particular dates whenever Air Quality Index (AQI) showed severe level. In this study, we have analyzed 24 hourly averaged Air Quality Index (AQI) data for the period September 2017 - January 2018 and September 2018 - January 2019 at two sites i.e. Delhi Technical University (DTU) and Income Tax Office (ITO) respectively. The GRAP results showed a significant decrease in AQI values of both after every order passed by GRAP task force. In general, the PM2.5 AQI values were always higher during year 2017-18 as compared to 2018-19 at both sites.
O direito à moradia e as ocupações ilegais
Authors: Figueiredo Junior Carlos Magno Alhakim
Published: April 2020

Esta pesquisa abordará o tema do Direito à moradia e as ocupações ilegais. Para fins de pesquisa, este trabalho, baseou-se na pesquisa bibliográfica, analisando a doutrina, para assim elucidar a inevitável questão: O Direito social e fundamental à moradia legitima a ação de movimentos sociais por habitação utilizando meios ilegais de apropriação? Nesse contexto, serão estudados conceitos basilares do direito fundamental e social à moradia, alguns fatores do direito de propriedade, dentre eles, a sua função social. Que aferirá se na prática, a lei tem claro a função jurídica do estado em relação à defesa do Direito de propriedade frente aos meios de efetivar o Direito à moradia
O direito e as cidades inteligentes: desafios e possibilidades na construção de políticas públicas de planejamento, gestão e disciplina urbanística
Authors: Reck Janriê Rodrigues , Vanin Fábio Scopel
Published: April 2020

O trabalho tem como objetivo observar se a tecnologia empregada nas políticas públicas de cidades inteligentes é suficiente para tornar obsoleto os instrumentos jurídicos tradicionais de planejamento, gestão e disciplina da atividade urbanística. Para isso, se apresentam algumas descrições sobre as Smart Cities, observam-se os instrumentos jurídicos tradicionais e como as novas tecnologias tem sido utilizadas para o exercício das políticas públicas de planejamento, gestão e disciplina, para ao final, apresentar reflexões jurídicas sobre o tema. Como conclusão, verifica-se que a utilização dos novos mecanismos tecnológicos tem servido de apoio e não para substituição dos instrumentos existentes, com a ressalva da tecnologia ser um tema em aberto, dinâmico e de resultados imprevisíveis, inclusive seu próprio uso como apoio pode ser suficientemente capaz de substituir os instrumentos jurídicos existentes. O trabalho vale-se do método de procedimento estruturalista, com reflexões baseadas na matriz teórica sistêmica.
A revitalização do Cais Mauá, em Porto Alegre, na perspectiva da geografia jurídica
Authors: Konzen Lucas P. , Vivian Mariana M.
Published: April 2020

Este artigo tem por objetivo discutir as mudanças na regulação dos usos dos espaços públicos em projetos de revitalização urbana de áreas portuárias por meio do estudo do caso do Cais Mauá, em Porto Alegre. Categorias do campo da geografia jurídica serviram de referencial teórico tanto para desenhar a pesquisa empírica qualitativa quanto para analisar os dados coletados. As fontes de informação incluem documentos oficiais, referentes ao projeto de revitalização, notícias da imprensa local sobre o andamento do processo e postagens públicas em redes sociais de movimentos de contestação ao projeto. O artigo sustenta que processos de revitalização urbana de áreas portuárias significam substanciais mudanças na regulação dos usos dos espaços públicos. No caso estudado, as mudanças de regulação previstas tendem a resultar na separação entre a área portuária e o entorno no que se refere às normas jurídicas aplicáveis.
Entre a cooperação e a coerção: como os estímulos institucionais enfraqueceram o sistema federativo brasileiro previsto em 1988
Authors: Liziero Leonam , Alcântara André Luiz Batalha
Published: April 2020

A presente pesquisa busca verificar as razões pelas quais os estímulos institucionais no atual sistema federativo brasileiro funcionam como um mecanismo de retroalimentação do poderio da União e, consequentemente, gera a constante dependência econômica de parte considerável dos Municípios brasileiros. A questão é diretamente vinculada à repartição de competências que, apesar das inovações em 1988, gera também problemas de centralização, ausência de cooperação e enfraquecimento do federalismo. Portanto, a pesquisa incialmente demonstrará como a repartição de competências no Brasil gera um cenário centralizador. Em seguida tratará dos incentivos sistêmicos aos Municípios para demonstrar, posteriormente que uma consequência de tais incentivos foi a proliferação desordenada de Municípios a partir de 1988.
COVID-19 crisis: then and now
Authors: Meldrum Eloise
Published: April 2020

Eloise Meldrum is a locum dental nurse and an editorial board member of Dental Nursing journal
Do you have big shoes to fill?
Authors: Greer Stacey
Published: April 2020

Stacey Greer offers some tips on how best to step into the role of others and nail it as a great locum dental nurse
Dental nursing journeys
Authors: Faulkner Clare
Published: April 2020

Lead dental nursing lecturer Clare Faulkner hears from her students about their plans for the future
Generalized shift–rotation absolute measurement method for optical surface shapes with polygonal apertures based on migration recognition by Radon transform
Authors: Yang Dong , Yang Zhongming , Dou Jiantai , Liu Zhaojun
Published: April 2020

A generalized shift–rotation absolute measurement method for optical surface shapes with polygonal apertures based on migration recognition by Radon transform is proposed. The rotation angles and translation distances of the test surface, measured three times, are calculated through migration recognition. The absolute shape of the test surface with the polygonal aperture is fitted by orthogonal Zernike polynomials. Compared to the existing absolute measurement method for polygonal apertures, our method ensures test surface measurement accuracy without high-precision attitude control and repeated adjustments. The measurement is simple and coherent, which reduces the measurement time and improves the efficiency.
Use of q-plate as a coupler
Authors: Bansal Sarvesh , Kumar Pal Sushanta , Senthilkumaran P.
Published: April 2020

A coupler is a device that allows interconversion of angular momentum of the optical beam among spin and orbital parts, without absorbing any angular momentum. In this paper, we demonstrate that aq-plate withq=1can act as a coupler for any of the polarization distribution that can be represented by a point on a Poincare sphere (PS), or on a higher-order PS, or on a hybrid-order PS. Aq-plate with anyq-value can act as a coupler for polarization distribution that can be represented by an equatorial point on any of these spheres. It is also possible to find aq-plate with an appropriateq-value that can act as a creation or annihilation operator that raises or lowers the polarization singularity index. Theq-plate being a coupler and made of half-wave plate segments, the singularity index change is concomitant with the helicity inversion of C-points. Interconversion of bright and dark C-points is possible by using aq-plate.
Simple method for the characterization of birefringence of single-mode optical fibers
Authors: Rojas-Sanchez A. , Tentori D.
Published: April 2020

Over the past few decades, various laboratories have worked on non-destructive methods for the evaluation of residual birefringence of single-mode optical fibers. Among them, polarimetric methods allowing the measurement of polarization eigenmodes represent the best option when it is necessary either to understand or to control the evolution of the state of polarization of light along the fiber. In this work, we present a polarimetric technique based on the use of Mueller calculus and the Poincaré sphere. This is a simple, precise, and non-destructive method allowing the measurement of the azimuth and ellipticity angles of the polarization eigenmode, as well as the total retardation angle modulus-π.
Fabrication of a side pump combiner and realization of a 2 kW single mode all-fiber laser oscillator
Authors: Li Zhixian , Tian Xin , Lei Chengmin , Zhang Hui , Chen Zilun , Yang Baolai , Xi Xiaoming , Wang XiaoLin , Wang Zefeng , Chen Jinbao
Published: April 2020

In this paper, we investigate a (2 + 1)×1 side pump combiner with high power handling capability and high beam quality numerically and experimentally. Through theoretical research, we have found how the combiner’s parameters influence its pump coupling efficiency and maximum load power. According to the numerical analysis, we fabricate a side pump combiner, which consists of two pump fibers (220/242 µm, NA = 0.22) and a signal fiber (20/400 µm, NA = 0.06/0.46). The coupling efficiency of the side pump combiner is 97%, which is tested under 2 kW input pump power. Using two side pump combiners and four high power 976 nm laser diodes, a bi-directionally pumped fiber laser oscillator is constructed and tested. The fiber laser oscillator’s maximum output power is 2150 W when injecting 3070 W pump power, corresponding to a slope efficiency of ∼72%. No stimulated Raman scattering or transverse mode instability was observed during the operation test. Thanks to the advantage of maintaining high beam quality of the home-made side pump combiner, this all-fiber laser oscillator achieves single mode laser output (M2=1.05) even when the output power increases to more than 2 kW. By further improving the fabrication technique and using larger core fibers, output laser power could be greatly increased, which is very important for high-power fiber lasers.
Synergistic interaction of education, science, and industry
Authors: Klimuk Vladimir , Tarasova Anna , Yulia Kuznetsova , Laura Dzhabrailova
Published: April 2020

Economic and social development of a country rely on advanced science and technology, skilled, educated workforce, extensive growth of innovation and population density. The process of innovation creation can be long and winding and should take into account the needs of technological development and definitely bring benefits to business. The concept of a science park has not been new. The United States of America were pioneers who in early 1950s suggested a brand new model for bridging the gap between academia and industry. Nowadays developed countries employ that model, though its objectives, funds, inputs and outcomes may vary. This paper will focus of the issue of real interaction of institutions of education, science and industry and will raise a number of controversial issues in the correction of the vector for socio-economic modernization. The authors analyzed a set of legislation acts on regulating the cooperation of academia and business. The paper gives a graphical model of reciprocity of institutions of education, science, and industry taking into account the interests of public authorities, and offers a set of additional indicators of evaluation of the efficiency of functioning of an innovation structure in the country (region).
Anticipated work-family conflict in Brazilian university students
Authors: De Andrade Alexsandro Luiz , Ferraz Karen Rabello , De Oliveira Manoela Ziebell , Hatfield Elaine
Published: April 2020

Career development and work-family conflict are two areas of research with extreme theoretical and practical relevance, especially when focusing on job and non-job related life dimensions. With the intent to contribute to this debate, especially to career counseling practices with young adults, the present study investigated how the perception of interactions between roles and demands that arise from these two dimensions – family and work – influence university students’ perceptions of career success. The study was structured in two parts: 1) adaptation of a measure that evaluates work-family conflict anticipation in university students in the Brazilian context; and 2) proposal of a model to evaluate the anticipation of the work-family conflict construct and its relation with the variables success perception, career adaptability and attachment styles. Participants were 424 students enrolled in different majors of public and private institutions from a state in Southeast Brazil, who answered a survey. The results point to a psychological measure with favorable indicators of validity and precision for the evaluation of the work-family conflict anticipation dimensions. Additionally, the proposed model shows that career adaptability dimensions are positive predictors of career success, while insecure attachment dimensions are negative predictors.
Editorial: Between Hope and Hype: Critical evaluations of technology’s role in anti-trafficking
Authors: Musto Jennifer , Thakor Mitali , Gerasimov Borislav
Published: April 2020

Over the past decade, scholars, activists, and policymakers have repeatedly called for an examination of the role of technology as a contributing force to human trafficking and exploitation. Attention has focused on a range of issues from adult services websites and the use of social media to recruit victims and facilitate trafficking to the utilisation of data analytics software to understand trafficking and identify ‘hotspots of risk’. This article introduces the Special Issue of Anti-Trafficking Review devoted to the role of technology in (anti-)trafficking. It outlines the main assumptions and critiques some of the proposed ‘solutions’ in the field and presents briefly the articles included in the issue. It concludes that the factors that enable and sustain human trafficking are varied and complex and require political will – not tech solutionist fixes.
Evaluation of Physico-Chemical Properties of Lemongrass (Cymbopogon
citratus L.) Essential Oil Grown in Tien Giang Province, Vietnam
Authors: Dao Tan Phat , Do Hoang Thang , Khoi Le Quang , Gia Phap Nguyen Van , Cang Mai Huyng , Pham Tri Nhut , Muoi Nguyen Van
Published: April 2020

The lemongrass (Cymbopogon citratus L.) essential oil plays a vital role as an ingredient in different
fields due to aromatic, antibacterial properties and antifungal activity. In this study, essential oil of
lemongrass was obtained using hydrodistillation method and evaluated for chemical compositions
and physico-chemical characteristics. The averaged physico-chemical parameters were determined as
specific gravity (0.8865 g/cm3), acid index (2.948), ester index (6.402) and refractive index (9.35).
Moreover, the hydrodistillation process performance was achieved 0.29%. The composition of essential
oils was analyzed by GC-MS, revealing a total of 18 volatile constituents existing in the lemongrass
oil. The major components were α-citral (40.838%), β-citral (28.494%), β-myrcene (16.654%),
2,3-dehydro-1,8-cineole (2.264%) and geraniol (2.388%). The citral component accounts for high
content (more than 70% of volume) of oil.
Spectral Studies and Antibacterial Activity of Vanadium(III) Complexes of Heterocyclic Hydrazones
Authors: Kasimbi D. , Reddy K. Hussain , Devanna N.
Published: April 2020

Vanadium(III) complexes having the composition VLCl3 [where L = 2-acetylpyridine acetoylhydrazone (APAH), 2-acetylpyridine benzoylhydrazone (APBH), 2-acetylthiophene acetoylhydrazone (ATAH) and 2-acetylthiophene benzoylhydrazone (ATBH)] have been investigated using physico-chemical and analytical techniques. Molar conductivity data suggested that the complexes are neutral. Structures of all the vanadium(III) complexes are determined based on infrared and UV-visible spectral data. Electronic spectra of vanadium(III) complexes show three peaks suggesting octahedral structure. Comparison of vibrational spectra of hydrazones and complexes suggest that the hydrazones act as
neutral tridentate ligands. The ligands and their vanadium derivatives are screened for their bacteria destroying activity against pathogenic bacterial strains viz. Gram-negative E. coli, Gram-positive Bacillus, Gram-positive Staphylococcus aureus and Gram-negative P. aureoginosa. Bacteria destroying activities of present complexes are comparable to the activity of the streptomycin. Complexes show more activity than their respective ligands in the case of Gram-positive Bacillus and Gram-negative P. aureoginosa.
One-Pot, Water-Mediated, H2O2-HCl Catalyzed Synthesis of Benzazepines
Authors: Singh Nidhi , Pandey Jaya
Published: April 2020

One-pot, multicomponent H2O2-HCl catalyzed system was employed for the synthesis of a series of
benzazepine compounds. The implemented procedure oxidized the carbon-nitrogen bonds and produced
benzazepines, while integrating diamines and substituted ketone. The advantage of the exercised
synthetic route was that the reaction was water mediated and the completion time was quite reduced
compared to the time required by conventional methods
As Escolas Médicas e os desafios da formação médica diante da epidemia brasileira da COVID-19: das (in)certezas acadêmicas ao compromisso social.
Authors: De Oliveira Sandro Schreiber , Postal Eduardo Arquimino , Afonso Denise Herdy
Published: April 2020

A epidemia de Covid-19 no Brasil já se constitui uma das mais impactantes questões de saúde pública na realidade do País e no mundo moderno, em decorrência das múltiplas consequências e tensões que atingem a nossa sociedade. Ainda que o foco esteja na proteção aos usuários e à comunidade, o cenário de epidemia no Brasil interferiu de forma abrupta no processo educacional da formação médica e de outros cursos da saúde, exigindo um remodelamento emergencial e demandando atenção e diálogo ágil entre educadores, gestores e sociedade. 

A preocupação com o impacto da epidemia na formação dos futuros médicos, está presente ao redor do mundo(1), com ênfase no desafio de adequação do processo formativo  ao cenário de epidemia, em função da não integralização das cargas horárias preconizadas, do deslocamento das atividades previstas  para alguns campos de prática diversos, da possibilidade e antecipação das formaturas e do uso adicional de tecnologias educacionais à distância, que podem impactar a execução  do projeto pedagógico original dos cursos, bem como das próprias diretrizes curriculares nacionais.
Olhares sobre o currículo para a formação de professores no primeiro curso superior de Matemática no Norte de Minas Gerais (1968-1978)
Authors: Castro e Almeida Shirley Patrícia Nogueira de , Gomes Maria Laura Magalhães
Published: April 2020

Este artigo apresenta olhares sobre o currículo para a formação de professores no primeiro curso superior de Matemática da Faculdade de Filosofia Ciências e Letras (FAFIL), no Norte de Minas Gerais, nos anos 1968 a 1978. Realizamos uma investigação fundamentada em narrativas de memórias e em documentos educacionais da época. Nossos objetivos foram analisar aspectos dessas narrativas e dos documentos que apresentam indícios sobre o currículo adotado, o que se ensinava e aprendia no curso em foco e registrar nossas impressões sobre o tipo de professor de Matemática que se queria formar. Prestigiamos, em nosso trabalho, a metodologia da História Oral, com a preocupação de articular e fazer dialogar o oral e o escrito. Concluímos que os docentes desenvolviam suas práticas com o objetivo de formar bons professores de Matemática na perspectiva das teorias tradicionais do currículo e que o modelo de formação adotado era calcado no rigor, revelando que o ensino e a aprendizagem da Matemática eram destinados aos bem dotados intelectualmente.
Geometria nas licenciaturas em Matemática: um panorama a partir de Projetos Pedagógicos de Cursos
Authors: Ferner Dienifer da Luz , Soares Maria Arlita da Silveira , Mariani Rita de Cássia Pistóia
Published: April 2020

Diante da importância do desenvolvimento de conceitos geométricos na formação inicial de professores, esta pesquisa objetiva identificar indícios sobre a Geometria, em especial, a Geometria Espacial em Projetos Pedagógicos de Cursos (PPC) presenciais de Matemática Licenciatura em instituições brasileiras. A pesquisa é caracterizada como documental e analisada de modo qualitativo por meio da organização da técnica da Análise de Conteúdo. Os dados permitem afirmar que, em relação aos componentes de Geometria, o campo específico da Geometria Analítica foi o que obteve maior ênfase nos PPC analisados. Quanto a Geometria Espacial, constata-se prevalência da construção axiomática, enfoque na visualização, propostas de trabalho com diferentes representações de objetos geométricos. Contudo, é evidenciada a falta de uma abordagem dos conceitos/conteúdos de Geometria Espacial numa perspectiva didática-metodológica.
Historic HOLC Redlining in Indianapolis and the Legacy of Environmental Impacts
Authors: Moxley Donovan , Fischer Burnell
Published: April 2020

Redline mapping was adopted by the Home Owner’s Loan Corporation (HOLC) in the 1930s to help assess its lending risk based on observable characteristics in urban neighborhoods across the United States, but the practice has been criticized for evident racial discrimination in addition to financial risk assessment. Researchers have demonstrated that modern urban tree canopy cover is lower in the historically redlined zones of four US cities. This article focuses on Indianapolis, Indiana, where a HOLC map was developed in 1937. Analysis using a geographic information system (GIS) was conducted in order to detect evidence of ecological legacies of redlining. Using this method, evidence of relatively high-intensity development, low greenspace and forest cover, and disproportionately high incidences of brownfield sites, Superfund sites, industrial waste sites, and Interstate highways were detected in historically redlined zones in Indianapolis. While opportunities for further and more detailed research are considered, the method employed here should be developed such that it is replicable for other cities with redlining histories in Indiana and other surrounding states with comparable spatial datasets. This example protocol can be adopted and refined by various stakeholders to establish where the need may exist for programmatic solutions and to better inform policy recommendations.
Prioritizing Environmental Protection: Regulating Sulfide-Ore Mining in the Boundary Waters Canoe Area Wilderness of Northeastern Minnesota
Authors: Meintsma Sonja
Published: April 2020

This paper examines the environmental policy implications and environmental risks of engaging in copper-ore sulfide mining in the Boundary Waters Canoe Area Wilderness of Minnesota. The re-instatement of mining leases in the area within the past year has generated significant controversy within the state. Concern over limiting environmental risk through effective regulation sits at the forefront of the prominent debate taking place at the federal, local, and state levels. Currently, Minnesota is not equipped to properly and effectively regulate these mines for environmental protection. With that goal in mind, this analysis argues that regulations must return to—and continue beyond—the status quo ante, established in 2016, by implementing stricter command and control design & performance standards; mandating severance taxation; establishing research and development programs; improving transparency; addressing information asymmetries; and ensuring liability standards for adequate compensation of incurred costs caused by environmental degradation and displaced industries. Implementation of these policy mechanisms will ensure prioritization of environmental preservation of the Arrowhead region of northeastern Minnesota.
Status Keberlanjutan Pengelolaan Sampah Terpadu di TPST-Bantargebang, Bekasi: Menggunakan Rapfish dengan R Statistik
Authors: Sukwika Tatan , Noviana Linda
Published: April 2020

Studi mengenai status keberlanjutan dari pengelolaan sampah dari DKI Jakarta secara terpadu di TPST (Pengelolaan Tempat Pengolahan Sampah Terpadu) Bantargebang Bekasi masih cukup terbatas, dan umumnya hanya membatasi pada lingkup pencemaran, masalah sosial, dan isu perluasan kawasan TPA. Salah satu konsep pembangunan TPA tersebut adalah pengelolaan TPST yang lebih ramah lingkungan, berteknologi, dan terkoordinasi. Studi ini berfokus pada evaluasi pengelolaan sampah terpadu di TPST Bantargebang saat ini. Melalui studi inipun, dapat ditemukan informasi status keberlanjutan pengelolaan sampah terpadu di TPST Bantargebang Bekasi. Data yang dikumpulkan dalam penelitian ini, meliputi data primer dan sekunder. Data primer dihimpun dari wawancara pakar, sedangkan data sekunder dari laporan, jurnal dan hasil-hasil kajian berbagai instansi terkait. Teknik analisis menggunakan multi-dimensional scalling Rapfish yang diintegrasikan ke dalam perangkat lunak R statistik. Hasil studi menunjukkan status keberlanjutan pengelolaan sampah terpadu di TPST-Bantargebang antar stakeholder sangat beragam, secara rataan nilai indeks multidimensional berkisar di 51,71 pada tingkat determinasi 97 persen dan menghasilkan 15 atribut sensitif yang berpengaruh terhadap pengelolaan sampah terpadu di TPST-Bantargebang. Simpulannya, secara keseluruhan status keberlanjutan pengelolaan sampah terpadu di TPST-Bantargebang termasuk dalam kategori berkelanjutan (lulus).
Kajian Penerapan Simbiosis Industri Pada Rantai Pasok Otomotif
Authors: Masjud Yunita Ismail
Published: April 2020

Pendekatan symbiosis industri merupakan salah satu pendekatan yang dapat dilakukan terhadap pengelolaan lingkungan industri.  Pengelolaan lingkungan industry menjadi penting mengingat industry merupak sector yang paling besar berkontribusi terhadap Pendapatan Regional Bruto (PDB) dan juga menyerap tenaga kerja cukup besar.  Pembentukan symbiosis industry membutuhkan sinergi dan kolaborasi pada awal pembentukannya.  Sinergi dan kolaborasi terjadi di rantai pasok, termasuk rantai pasok otomotif. Penelitian ini bertujuan melihat pengaruh sinergi dan kolaborasi terhadap terjadinya pertukaran materi, pertukaran energi, pertukaran produk samping dan pertukaran air.  Penelitian ini dilakukan terhadap perusahaan komponen otomotif yang berlokasi di Jabodetabek, yang merupakan suplayer PT Astra Daihatsu Motor (PT.ADM) dan memprodukdi komponen yang masa pakainya singkat (fast moving). Sampel dipilih secara purposive dan pengumpulan data menggunakan koesioner yang didistribusikan secara online. Data yang terkumpul dianalisis dengan menggunakan model regresi berganda dengan variable independent adalah sinergi dan kolaborasi, sedangkan variable dependen adalah pertukaran materi, pertukaran energi, pertukaran produk samping dan pertukaran air.  Hasil yang diperoleh menunjukkan bahwa sinergi berpengaruh signifikan terhadap perubahan materi dan pertukaran air.  Kolaborasi berpengaruhi signifikan terhadap pertukaran produk samping dan pertukaran energi tidak dipengaruhi secara signifikan oleh sinergi dan kolaborasi.
Analisis Scientometrics Penelitian Merkuri pada Penambangan Emas Skala Kecil di Indonesia Tahun 2009-2019
Authors: Aryantie Melania Hanny , Hidayat Muhamad Yusup , Ratnaningsih Dewi , Nasution Eva Lindasari
Published: April 2020

Penelitian ini menggunakan analisis scientometrics untuk mengetahui perkembangan penelitian merkuri pada penambangan emas skala kecil (PESK) di Indonesia tahun 2009-2019. Abstrak dari 81 publikasi ilmiah tersortir dianalisis menggunakan content analysis berdasarkan kategori yang diturunkan dari Peraturan Presiden Nomor 21/2019 tentang Rencana Aksi Nasional Pengurangan dan Penghapusan Merkuri (RAN-PPM). Enam kategori terdiri dari: penyimpanan merkuri dan limbah merkuri, pemulihan dan rehabilitasi lahan bekas PESK, pemantauan merkuri, peta sumber merkuri dan peta dampak emisi merkuri, jalur distribusi merkuri dari hulu ke hilir, dan sosial ekonomi. Keenam kategori tersebut mendasari kuantifikasi publikasi, penulis, lembaga afiliasi, dan sitasi. Riset membuktikan bahwa publikasi PESK tertinggi dihasilkan tahun 2015 (14 artikel), publikasi terbanyak adalah pemantauan merkuri (32 artikel), naskah terbanyak dihasilkan oleh peneliti Lembaga Ilmu Pengetahuan Indonesia (LIPI) dan Universitas Sam Ratulangi (UNSRAT) (masing-masing 3 artikel), lembaga afiliasi paling produktif adalah UNSRAT (11 artikel), serta sitasi terbanyak pada tahun 2012 (42 sitasi). Temuan yang menjadi rekomendasi adalah kebutuhan riset untuk kegiatan yang minim publikasi, yakni penyimpanan merkuri dan limbah merkuri serta riset tentang alur suplai hingga penggunaan merkuri di PESK. Hasil studi ini menjadi masukan pemerintah tentang pencapaian Indonesia dalam penghapusan merkuri di bidang prioritas PESK serta bahan evaluasi pelaksanaan Konvensi Minamata (Undang-undang Nomor 11/2017) dan pelaksanaan RAN-PPM (Peraturan Presiden Nomor 21/2019).
Idealisme dan Dualisme Daur Ulang Sampah di Indonesia: Studi Kasus Kota Semarang
Authors: Setiadi Rukuh , Nurhadi Moh , Prihantoro Feri
Published: April 2020

This study analyzes various regulations on urban waste management, with emphasis in recycling activities. How regulatory frameworks from the national level translates to the city level, and the extent of its implementation are examined through field observations in the city of Semarang as a case study. Based on the study of regulations and policy documents, this study suggests that recycling is found in various policy domains, not only those concerning waste management but also in the environment, industry, company’s limited liability and infrastructure domains. This study highlights two main problems in recycling namely: policy idealism and approach dualism. From these two basic problems, this study recommends a strategy for strengthening the capacity and collaboration of related parties as one of keys to increasing the capacity of waste recycling, especially in urban areas in Indonesia.
Kecenderungan dan Perubahan Hujan Ekstrem Harian di Pulau Madura
Authors: Fura Ahmad Nur Akma Juangga , Wiyono Retno Utami Agung , Indarto Indarto
Published: April 2020

Madura subject to a high level of flood hazard. One of the main causes of flood is extreme rainfall. Global warming generates changes in the amount of extreme rainfall. This research is conducted to identify and to analyze the trends, changes, and randomness of 24-hour extreme rainfall data on Madura Island. The method used is a non-parametric method which includes the Median Crossing test, the Mann-Kendall test, and the Rank-Sum test at the significance level of α =0.05. The analysis was carried out on 31 rain gauge stations. The recording period observed is between 1991-2015. The results of the analysis show that based on the Median Crossing test, most rainfall stations have data originating from random processes. The result shows also that the maximum 24-hour extreme rainfall trend is significantly decreased in a few locations, while for the majority of other stations have no experience a significant trend.
HUBUNGAN ASUPAN SENG DAN VITAMIN C DENGAN KEJADIAN TONSILITIS PADA BALITA USIA 2-5 TAHUN DI KELURAHAN JOMBLANG KECAMATAN CANDISARI KOTA SEMARANG
Authors: Furi Agnes Kalpita , Candra Aryu , Rahadiyanti Ayu
Published: April 2020

Latar Belakang : Tonsilitis adalah salah satu penyakit infeksi pada saluran pernafasan atas (ISPA) yang sering terjadi pada balita. Defisiensi seng dan vitamin C mempengaruhi kejadian tonsilitis terkait fungsi dalam sistem imun. Penelitian ini bertujuan untuk menganalisis hubungan asupan seng dan vitamin C dengan kejadian tonsilitis pada balita. Metode : Penelitian ini merupakan penelitian case control. Subjek balita usia 2-5 tahun sebanyak 50 subjek terdiri dari 25 subjek kasus dan 25 subjek kontrol diambil dengan teknik consecutive sampling. Penentuan subjek mengalami tonsilitis atau tidak dilakukan dengan diagnosis dokter melalui pemeriksaan tonsil. Data yang dikumpulkan meliputi riwayat asupan seng dan vitamin C diambil menggunakan Semi Quantitative Food Frequency Questionnaire (SQFFQ), identitas subjek dan orangtua/pengasuh, data hygiene mulut, dan data kebiasaan makan dengan wawancara langsung. Analisis data dengan uji Chi-square, Fisher’s Exact, Mann Whitney, dan Independent T.Hasil : Status gizi subjek sebagian besar tergolong normal berdasarkan BB/TB, BB/U, maupun TB/U. Sebanyak 56% subjek kelompok kasus memiliki kebiasaan makan yang berisiko dan 100% subjek pada kelompok kasus memiliki hygiene mulut yang kurang baik. Subjek kasus memiliki riwayat asupan seng yang kurang sebanyak 52% dan riwayat asupan vitamin C yang kurang sebanyak 80%. Riwayat asupan seng memiliki hubungan dengan kejadian tonsilitis (p<0,05), sedangkan riwayat asupan vitamin C tidak terdapat hubungan dengan kejadian tonsilitis (p>0,05).Kesimpulan : Risiko tonsilitis pada subjek dengan riwayat asupan seng kurang dari kebutuhan 4,3 kali lebih besar dibandingkan subjek dengan riwayat asupan seng cukup.