bluuebunny/crossref_metadata_2025 huggingface dataset:
A Systematic Literature Review on Professional Identity Construction in Social Media
Authors: Kasperiuniene Judita , Zydziunaite Vilma
Published: February 2019

The aim of this systematic review was to gather, review, summarize, and analyze the studies on professional identity construction in social media from various scholar perspectives. The search was conducted on the WoS Core Collection, Scopus, and EBSCOhost databases using keywords “professional identity construction” and “social media.” Seventeen full-text articles were studied searching for the essential aspects of professional identity construction. Results discussed professional identity as a complex phenomenon with two dominating perspectives: (a) professional identity as a cognitive structure and (b) professional identity as a social construct. Cognitive structures of professional identity construction in social media were mainly or partially covered in education, communication, medicine, and medical tourism-related contexts. Studies that envisage professional identity as socially constructed dominate in management, organizational, medical tourism, and neuroscience. The core topics of professional identity construction cover the blurring of professional stereotypes and reconstruction of multiple professional selves; merging public and private identities; belonging to a group and trusting social media. In researched papers, scholars argue virtual behavior can be predicted and smart technologies could help maintain physical and psychological balance. Findings show the overlapping landscape of studies and identify areas for future interdisciplinary research.
Social and Political Drivers of the Reorientation of U.S. Trade Policy: The Case of U.S. Withdrawal from the Trans-Pacific Partnership
Authors: Liss Jesse
Published: February 2019

Previous sociological studies demonstrated that U.S. multinational corporations (MNCs) had durable political power to motivate U.S. trade policy. However, why did the United States switch from a “free trade” to an “America First” trade agenda? Economists and political scientists argue that protectionist voters elected the protectionist candidate—Trump. An alternative sociological explanation is that U.S. MNCs lost political power to competing stakeholder groups. The article uses qualitative and quantitative methods to test these competing theories using the case study of the U.S. withdrawal from the Trans-Pacific Partnership (TPP). The article argues that both theories are necessary, and neither are sufficient. The United States withdrew from the TPP because increasing negative effects of trade and investment in the United States reshaped trade politics, especially on the republican side; however, power relations between stakeholder groups had to shift as well. U.S. MNCs lost political influence over trade policy to new domestic manufacturing organizations and their networks with labor and fair trade coalitions.
A Process for Assessment and Quality Improvement of the Clerkship Curriculum
Authors: Glaser Kelli
Published: February 2019

Reliance on the apprenticeship model of education in the clerkship years of medical education persists despite concerns with variability in educational delivery and outcomes. Although many institutions are addressing this variability, there needs to be a clear and objective method to assess what is working. Evaluating these educational experiences is an essential component to ensure that students graduate prepared to enter residency. In 2014, A.T. Still University’s School of Osteopathic Medicine in Arizona (ATSU-SOMA) introduced a curricular change to address clerkship variability by implementing an online curricular component for the core clerkship courses in the third and fourth years of medical student education. Subsequently, a new structured and objective process to evaluate these courses was designed to improve student learning outcomes in the clerkship years. A Curriculum Year Three and Four Work Group was created to develop the new process for curricular evaluation of the clerkship courses. In the pilot phase of its implementation, described herein, the process fostered stakeholder participation and buy-in, enhanced communication of expectations, increased accountability in clerkship course design, and effectively employed objective evaluation tools in determining what curricular changes were needed. The Curriculum Year Three and Four Work Group continues to revise the tools and methods to enhance the efficiency of the evaluation process and to analyze whether recommended course revisions have improved student outcomes.
How does the GINA definition of control correlate with quality of life and sputum cellularity?
Authors: Pizzichini Marcia Margaret Menezes , Rocha Cristiane Cinara , de Souza Tavares Michelle Gonçalves , Steidle Leila John Marques , Maureci da Silva Rosemeri , dal Pizzol Felipe , Gibson Peter G. , Pizzichini Emilio
Published: February 2019

Since 2014, the Global Initiative for Asthma (GINA) has stated that asthma control should be measured using four questions concerning diurnal and nocturnal symptoms, activity limitation, and rescue medication use. We assessed how asthma control by this definition correlates with airway inflammation and quality of life.

113 asthmatic subjects consecutively recruited from their routine clinical appointment underwent spirometry, sputum induction and answered the Standardised Asthma Quality of Life Questionnaire (AQLQ(S)) during a single visit.

43 (38.1%), 37 (32.7%) and 33 (29.2%) subjects had controlled asthma, partly controlled asthma and uncontrolled asthma, respectively. The majority of subjects with controlled asthma (67.4%) had paucigranulocytic sputum. Eosinophilic sputum was present in all levels of asthma control. Although most subjects with controlled asthma (58.1%) achieved an AQLQ(S) score ≥6 (minimal or no impairment), the remaining patients (41.9%) had moderate/some impairment (AQLQ(S) score <6 and ≥3) due to activity impairment and environmental exposure.

The present GINA definition of current symptom control reflects control of airway inflammation. However, quality of life impairment can be present even in these patients. Measuring quality of life may provide useful information when evaluating asthma control.
Melatonin synergizes BRAF-targeting agent vemurafenib in melanoma treatment by inhibiting iNOS/hTERT signaling and cancer-stem cell traits
Authors: Hao Jiaojiao , Fan Wenhua , Li Yizhuo , Tang Ranran , Tian Chunfang , Yang Qian , Zhu Tianhua , Diao Chaoliang , Hu Sheng , Chen Manyu , Guo Ping , Long Qian , Zhang Changlin , Qin Ge , Yu Wendan , Chen Miao , Li Liren , Qin Lijun , Wang Jingshu , Zhang Xiuping , Ren Yandong , Zhou Penghui , Zou Lijuan , Jiang Kui , Guo Wei , Deng Wuguo
Published: February 2019

Background

As the selective inhibitor of BRAF kinase, vemurafenib exhibits effective antitumor activities in patients with V600 BRAF mutant melanomas. However, acquired drug resistance invariably develops after its initial treatment.

Methods

Immunohistochemical staining was performed to detect the expression of iNOS and hTERT, p-p65, Epcam, CD44, PCNA in mice with melanoma xenografts. The proliferation and migration of melanoma cells were detected by MTT, tumorsphere culture, cell cycle, cell apoptosis, AO/EB assay and colony formation, transwell assay and scratch assay in vitro, and tumor growth differences were observed in xenograft nude mice. Changes in the expression of key molecules in the iNOS/hTERT signaling pathways were detected by western blot. Nucleus-cytoplasm separation, and immunofluorescence analyses were conducted to explore the location of p50/p65 in melanoma cell lines. Flow cytometry assay were performed to determine the expression of CD44. Pull down assay and ChIP assay were performed to detect the binding ability of p65 at iNOS and hTERT promoters. Additionally, hTERT promoter-driven luciferase plasmids were transfected in to melanoma cells with indicated treatment to determine luciferase activity of hTERT.

Results

Melatonin significantly and synergistically enhanced vemurafenib-mediated inhibitions of proliferation, colony formation, migration and invasion and promoted vemurafenib-induced apoptosis, cell cycle arresting and stemness weakening in melanoma cells. Further mechanism study revealed that melatonin enhanced the antitumor effect of vemurafenib by abrogating nucleus translocation of NF-κB p50/p65 and their binding at iNOS and hTERT promoters, thereby suppressing the expression of iNOS and hTERT. The elevated anti-tumor capacity of vemurafenib upon co-treatment with melatonin was also evaluated and confirmed in mice with melanoma xenografts.

Conclusions

Collectively, our results demonstrate melatonin synergizes the antitumor effect of vemurafenib in human melanoma by inhibiting cell proliferation and cancer-stem cell traits via targeting NF-κB/iNOS/hTERT signaling pathway, and suggest the potential of melatonin in antagonizing the toxicity of vemurafenib and augmenting its sensitivities in melanoma treatment.
USP22 controls multiple signaling pathways that are essential for vasculature formation in the mouse placenta
Authors: Koutelou Evangelia , Wang Li , Schibler Andria C. , Chao Hsueh-Ping , Kuang Xianghong , Lin Kevin , Lu Yue , Shen Jianjun , Jeter Collene R. , Salinger Andrew , Wilson Marenda , Chen Yi Chun , Atanassov Boyko S. , Tang Dean G. , Dent Sharon Y. R.
Published: February 2019

USP22, a component of the SAGA complex, is overexpressed in highly aggressive cancers, but the normal functions of this deubiquitinase are not well defined. We determined that loss of USP22 in mice results in embryonic lethality due to defects in extra-embryonic placental tissues and failure to establish proper vascular interactions with the maternal circulatory system. These phenotypes arise from abnormal gene expression patterns that reflect defective kinase signaling, including TGFβ and several receptor tyrosine kinase pathways. USP22 deletion in endothelial cells and pericytes that are induced from embryonic stem cells also hinders these signaling cascades, with detrimental effects on cell survival and differentiation as well as on the ability to form vessels. Our findings provide new insights into the functions of USP22 during development that may offer clues to its role in disease states.
Wnt signaling in orofacial clefts: crosstalk, pathogenesis and models
Authors: Reynolds Kurt , Kumari Priyanka , Sepulveda Rincon Lessly , Gu Ran , Ji Yu , Kumar Santosh , Zhou Chengji J.
Published: February 2019

Diverse signaling cues and attendant proteins work together during organogenesis, including craniofacial development. Lip and palate formation starts as early as the fourth week of gestation in humans or embryonic day 9.5 in mice. Disruptions in these early events may cause serious consequences, such as orofacial clefts, mainly cleft lip and/or cleft palate. Morphogenetic Wnt signaling, along with other signaling pathways and transcription regulation mechanisms, plays crucial roles during embryonic development, yet the signaling mechanisms and interactions in lip and palate formation and fusion remain poorly understood. Various Wnt signaling and related genes have been associated with orofacial clefts. This Review discusses the role of Wnt signaling and its crosstalk with cell adhesion molecules, transcription factors, epigenetic regulators and other morphogenetic signaling pathways, including the Bmp, Fgf, Tgfβ, Shh and retinoic acid pathways, in orofacial clefts in humans and animal models, which may provide a better understanding of these disorders and could be applied towards prevention and treatments.
More from less – bottom-up reconstitution of cell biology
Authors: Ganzinger Kristina A. , Schwille Petra
Published: February 2019

The ultimate goal of bottom-up synthetic biology is recreating life in its simplest form. However, in its quest to find the minimal functional units of life, this field contributes more than its main aim by also offering a range of tools for asking, and experimentally approaching, biological questions. This Review focusses on how bottom-up reconstitution has furthered our understanding of cell biology. Studying cell biological processes in vitro has a long tradition, but only recent technological advances have enabled researchers to reconstitute increasingly complex biomolecular systems by controlling their multi-component composition and their spatiotemporal arrangements. We illustrate this progress using the example of cytoskeletal processes. Our understanding of these has been greatly enhanced by reconstitution experiments, from the first in vitro experiments 70 years ago to recent work on minimal cytoskeleton systems (including this Special Issue of Journal of Cell Science). Importantly, reconstitution approaches are not limited to the cytoskeleton field. Thus, we also discuss progress in other areas, such as the shaping of biomembranes and cellular signalling, and prompt the reader to add their subfield of cell biology to this list in the future.
Violet Luminescence from Zinc-Based Metal-Organic Frameworks Prepared by Solvothermal Synthesis
Authors: Sanada Tomoe , Tominaka Satoshi , Kojima Kazuo , Cheetham Anthony K
Published: February 2019

To investigate local electron transfer in metal-organic frameworks (MOFs), we synthesized a new MOF structure composed of zinc cations and 1,4-naphthalenedicarboxylate (14ndc) linker anions. The crystal structure was determined by single crystal X-ray diffractometry and the optical properties were investigated by measurements of luminescence and excitation spectra. [Zn4(ndc)3(OH)2](C2H5OH)(1.4H2O) crystallizes in space group $P\bar{1}$ and contains ZnO4 and ZnO6 coordination spheres linked by the naphthalenedicarboxylate (ndc, C12H6O42−) units. Under UV irradiation, the MOF shows violet luminescence, which is probably due to energy transfer involving two different systems in the structure. The MOF shows good stability in a water/ethanol mixed solvent (approximately 3:5 ratio by volume that is consistent with the solvent used for sample preparation).
Mathematical methods of decision support
Authors: Алексеев Николай , Alekseev Nikolay , Осипова Виктория , Osipova Viktoriya
Published: February 2019

The manual presents the basic mathematical methods used in rational and optimal individual choice and collective decision-making. Special attention is paid to the problems of multi-criteria selection.
Designed for undergraduate and graduate students of universities, as well as professionals working in the field of decision-making.
External Learning Strategies and Technological Search Output: Spinout Strategy and Corporate Invention Quality
Authors: Cirillo Bruno
Published: February 2019

The strategic management of knowledge spillovers to employee ventures may provide firms with knowledge spill-ins or the potential to learn from the ventures that they have spun out. However, the mechanisms underlying knowledge spill-ins and their importance for external learning in uncertain technology environments have not been examined in detail. This article compares corporate venturing (CV) spinouts that are supported by parent firms with independent employee spinouts as well as other strategies for external learning, such as investments and alliances. An analysis of the patenting activities of leading corporations operating in the information and communication technology industry reveals that, ceteris paribus, when firms recombine unfamiliar knowledge components developed by their CV spinouts, their inventions are associated with higher quality than comparable firms’ inventions that recombine knowledge from the firm’s corporate venture capital portfolio ventures, allies, or employee spinouts. This effect is especially pronounced when CV spinout inventors hold parent-specific technological expertise. The results are robust across several econometric specifications that account for selection and intrinsic differences in external learning strategies. Furthermore, the results indicate that CV spinouts benefit their parent firms by reducing uncertainty relative to other strategic formats for external learning in unfamiliar technological areas. The detailed theoretical and practical implications derived from this research reflect perspectives on technology strategy and corporate renewal.
Have we reached stalemate?
Authors: Marshall Kathryn
Published: February 2019

Kathryn Marshall discusses the underuse of skills of those dental nurses with expanded duties
Eyes sharp! Read the small print
Authors: Ellwood Fiona
Published: February 2019

Fiona Ellwood considers the prickly issue of indemnity and insurance policies and urges dental nurses to look a little closer before handing over their hard-earned money
Bubbling under
Authors: Miles-Jenkins Alison
Published: February 2019

Alison Miles-Jenkins on the art of confidently handling complaints
An organically grown career
Authors: Langan Bevlee
Published: February 2019

Award-winning dental nurse Bevlee Langan shares the secrets of nurturing a blossoming career
Life as a Royal Navy dental nurse
Authors: Hearne Janice
Published: February 2019

Chief Petty Officer Janice Hearne talks about a role that has far exceeded all her expectations
The perfect match!
Authors: Omidvaran Joshtyn Ann
Published: February 2019

Joshtyn Ann Omidvaran is an award-winning practice manager. Here, she offers some insider tips on how to stand out from the crowd in order to secure your next dental nursing job
Protecting vulnerable groups
Authors: Walker Linda
Published: February 2019

Linda Walker considers this important topic in relation to General Dental Council (GDC) Standards and the introduction of GDPR
The risks of improper disposal
Authors: Somel Prettpal
Published: February 2019

All healthcare providers have a duty of care to ensure that medical waste is suitably managed and disposed of…
Leadership in training: a Q&A with Ian Corrie
Authors: Corrie Ian
Published: February 2019

As well as the use of practical clinical scenarios, the training weekend was also used to provide leadership and development training for senior members of the regiment. In this special Question and Answer feature, the man in charge, Ian Corrie, provides a more in-depth insight into what the training involved
The Brook Greenwich (1957)
Authors: Whatling Andy
Published: February 2019

Photograph courtesy of London Ambulance Service.
Two-year support package to boost retention of new teachers
Authors: Henshaw Pete
Published: February 2019

Early Career Framework to offer two-year induction with trained mentors, structured support and retention bursaries from 2020/21
Three questions for teachers…
Authors: Sherwood Caroline
Published: February 2019

When reflecting on your teaching, there are three questions you could ask yourself, says Caroline Sherwood
School ethos, vision and aspiration
Authors: Bawden Matt
Published: February 2019

Character, aspiration and school ethos are all linked. Matt Bawden advises on the importance of school ethos, how it links to aspiration, and how we must communicate it. He offers three guiding principles for using school ethos or vision to raise aspirations
[APRESENTAÇÃO] DOSSIÊ: MARTIN HEIDEGGER
Authors: Ribeiro Caroline Vasconcelos , Da Silva Diogo Campos , Boechat Tatiane
Published: February 2019

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HEIDEGGER E O FIM DA METAFÍSICA
Authors: De Jesus Adrielle Costa Gomes
Published: February 2019

Para Heidegger, com a chegada da era da metafísica acabada deve advir uma proposta de “outro começo”, no qual assumiríamos uma relação mais originária com a nossa historicidade mediante um confronto meditativo com a tradição e com o presente. O que ele assume como tarefa de suas reflexões e como proposta de superação da metafísica, a partir da Kehre. Contudo, Heidegger admite que essa transição depende mais de determinadas disposições históricas do que de um empenho de superação. O que faria do pensador parte de um desvelamento histórico. Isso conduz a alguns interpretes a considerarem a sua filosofia, não só como uma tentativa de preparar um período pós-metafísico da história, mas também como parte de realização desse período da metafísica acabada. John Sallis considera Ser e tempo e os escritos da segunda fase como parte dessa realização. Nesse artigo, abordamos alguns aspectos essenciais da crítica sobre o fim da metafísica, bem como da proposta de superação desenvolvida por Heidegger tanto em Ser e tempo, quanto a partir da Kehre, para com base nelas questionar a tese de J. Sallis de que Ser e tempo é parte de uma realização do fim da metafísica.
HEIDEGGER E A FENOMENOLOGIA DO ESPÍRITO DE HEGEL
Authors: Cordeiro Robson Costa
Published: February 2019

O texto aborda as considerações feitas por Heidegger sobre a Fenomenologia do Espírito de Hegel, mostrando que o espírito é o objeto e também o sujeito da fenomenologia e que, portanto, o genitivo da expressão Fenomenologia do Espírito é tanto um genitivus objetivus como também um genitivus subjetivus. Ademais, o texto irá também procurar distinguir as concepções de fenomenologia dos dois pensadores, estabelecendo entre eles uma confrontação de pensamento.
CORPORDEIDADE E EXISTÊNCIA EM HEIDEGGER
Authors: Da Costa Denise Magalhães
Published: February 2019

Nosso objetivo é mostrar o nexo ontológico entre corporeidade e o caráter de existência do Dasein a partir dos Seminários de Zollikon, onde Heidegger correlaciona a corporeidade ao ser-no-mundo; e de Ser e Tempo, onde ele expõe a analítica existencial deste ente e a sua constituição ontológica como ser-em. Nossa hipótese é que a corporeidade é um existencial constitutivo do ser do Dasein e se dá como um modo de ser ôntico-ontológico do ser-no-mundo. Para tanto, pretendemos esclarecer inicialmente a espacialidade ontológica do Dasein e sua co-pertença à corporeidade como um modo do corporar. Em seguida analisaremos os existenciais da compreensão, disposição e fala e seu nexo ontológico com a corporeidade do Dasein. Por fim, apontaremos o caráter ontológico existencial da corporeidade e o corporar do Dasein como um modo de ser deste ente enquanto existência e que se determina no mundo, na relação com os entes, o que confere à corporeidade um caráter ek-stático.
HABITAR O MUNDO: A EXISTÊNCIA COMO CRIAÇÃO NA ÉPOCA DA TÉCNICA
Authors: Castro Leidiane Coimbra de Lima
Published: February 2019

Segundo Heidegger o homem habita o mundo no modo da criação. Sua existência criativa é uma disposição a partir da qual sua relação com o mundo e com os outros homens ganha significado. No entanto, quando este é definido a partir da estrutura das novas tecnologias possibilitadas pela técnica moderna coloca-se no mundo a partir de um “fazer-explorador”. Nesse sentido submete toda a sua criação à lógica própria da técnica, qual seja, a encomenda, a antecipação, o cálculo, o rigor, a exploração que visa o acúmulo e o lucro. Nesta relação o mundo é significado como disponível e o homem como o sujeito que determina o modo como essa relação acontece. Notadamente essa relação é, segundo Heidegger, de fundo cartesiano, moderna e corresponde à época do esquecimento do ser.
A MORADA DO PENSADOR: HERÁCLITO NA PERSPECTIVA DE HEIDEGGER
Authors: Kirchner Renato
Published: February 2019

A presente reflexão assume a tarefa de procurar entender uma estória costumeiramente contada e atribuída a Heráclito. Heidegger surpreende-nos na medida em que, em sua interpretação da mesma estória na perspectiva do pensamento desenvolvido no contexto de Ser e tempo, é possível compreender que Heráclito não mora mesmo num lugar qualquer, pois pode ser que propriamente não mora num lugar qualquer no sentido que compreendemos usualmente. De fato, num de seus fragmentos, Heráclito diz: “A morada do homem, o extraordinário”. O extraordinário não deve ser buscado fora do lugar em que Heráclito já se encontra e mora. Sua morada é suficientemente grávida de sentido do mistério, isto é, do ser que lhe atinge em sua existência. A morada do pensador é seu ethos. Este ethos perfaz o círculo aberto-fechado como disposição de ser na abertura essencializadora de pertença já atida a uma condição primordial, qual seja, o lugar essencial do ser-aí humano.
ARTE E (DES)FORMAÇÃO HUMANA NO PENSAMENTO DE MARTIN HEIDEGGER
Authors: Moreira Eliana Henriques
Published: February 2019

Neste artigo discutimos a relação que se estabelece entre o fenômeno da Arte, vista desde suas origens, e a Formação humana a partir do pensamento de Martin Heidegger. Ao tratar a questão da Arte, o filósofo esclarece que toda sua discussão sobre Arte está inteiramente voltada para a questão central do seu pensamento, qual seja, a questão do sentido do Ser. Sendo assim, a discussão sobre a Arte se faz desde o horizonte ontológico e neste o sentido fundamental da Arte é que ela se mostra como uma origem, um âmbito originário que torna possível a instalação de um mundo, um novo mundo que torna possível a habitação humana na Terra. Sendo assim, a questão da Formação humana, também vista desde esse horizonte ontológico, indica que, o que a Arte propicia é muito mais uma des-formação do ser humano, no sentido de que a Arte retira o homem do modo comum de compreender e valorar para entrar na verdade da obra. Desta forma, propicia um novo modo de pertencimento do homem ao mundo, a uma trama de sentidos e significados que sem a Arte nem sequer existiriam e que não voltarão a ser depois. Sendo assim, a Arte retira do modo comum, do ordinário, fazendo ver o extraordinário, tira do habitual para um novo modo de estar no mundo. Portanto, não se trata de uma Formação para o Belo, a Formação ou melhor a des-formação que a Arte propicia é muito mais a de uma trans-Formação nos modos de ser do homem no mundo. Algo que possibilita a criação de novos horizontes de sentido.
PARA HUMANIZAR HEIDEGGER: TRÊS VARIAÇÕES
Authors: Pessanha Juliano Garcia
Published: February 2019

O texto, dividido em três partes, apresenta de um modo heterodoxo aspectos centrais do pensamento heideggeriano e sua recepção por Peter Sloterdijk. A primeira parte procura mostrar que a semântica heideggeriana é deficitária quando se trata de esclarecer o enraizamento no mundo e que ela serve mais para designar o estar-suspenso-na-fronteira. Na segunda parte, discute-se o extremismo e o messianismo de Heidegger. Já a terceira fecha o texto aforismática e ironicamente com uma observação sobre sossego e desassossego.
HUBERT DREYFUS E O ANTICARTESIANISMO HEIDEGGERIANO
Authors: Gomes Rodrigo Benevides Barbosa
Published: February 2019

Trata-se aqui de demonstrar a utilização da obra heideggeriana no contexto do surgimento da inteligência artificial assim como encontra-se em Hubert L. Dreyfus. A crítica de Dreyfus se resume em apontar o cognitivismo - paradigma dominante dos primórdios da inteligência artificial - como a aplicação empírica do racionalismo filosófico, isto é, a abordagem cognitivista argumenta que a cognição humana pode ser reproduzida a partir da formalização de determinadas representações rigidamente fixadas que serviriam como fundamento para a efetivação de comportamento inteligente. Em vista disso, apresenta-se o anticartesianismo heideggeriano de Dreyfus como a antítese do cognitivismo.
A ANALÍTICA DO DASEIN: A VIA HEIDEGGERIANA DE INTERPRETAR OS MODOS DE SER DO ENTE HUMANO
Authors: Silveira Ila Nunes
Published: February 2019

Neste artigo será explicitada a destruição heideggeriana à ontologia tradicional em seu modo de categorizar o ser. Eis-nos diante da hercúlea tarefa de apresentar algo que desconstrói uma concepção já legitimada e constantemente difundida no universo científico. Tão antiga e ao mesmo tempo atual, essa preocupação heideggeriana corroborou para a crise do espírito da época que despontava para uma a posição reinante das ciências naturais criadora de teorias, termos e significados “absolutos”. Com mais detalhes será apresentada a crítica heideggeriana ao modo como a ontologia tradicional pensou a questão do ser, o que fará com que o filósofo alemão retome e reformule a referida questão percorrida por outros caminhos inaugurados por ele. Na execução desta tarefa serão apresentadas as vias por onde Heidegger passa, a fim de chegar ao modo pleno de contemplação do homem, isto é, à concepção de Dasein. Algumas características deste olhar heideggeriano perfazem o caminho a ser percorrido aqui nesta investigação, tomando por base a ontologia fundamental deste autor. Ontologia essa que se apresenta de forma genuína a esse filósofo e que influenciou de maneira revolucionária o pensamento filosófico contemporâneo. Para tanto, Heidegger se propõe a pensar “a questão do ser”, destruindo então o discurso ontológico da filosofia tradicional, e se deixando conduzir pelo móvel da analítica do Dasein, no intuito de indagar sobre “o sentido do ser” e não mais sobre a quididade do ser como fizera a tradição filosófica. E é a partir das características descritas do Dasein que o ser humano deverá ser compreendido por Heidegger. Sendo assim, o intento maior deste artigo será a descrição dos modos fundamentais de ser do ente humano, o Dasein.
APPLICATION OF MACHINE VISION TECHNOLOGY IN ROAD DETECTION
Authors: Zhang Qingzhe , Qin Zhi
Published: February 2019

Machine vision was first applied in industrial manufacturing field, and now it is also used in road detection, with the rapid development and continuous innovation of computer technology and digital image processing technology. This study provides a detailed description of the application of machine vision technology in detection of pavement crack, such as crack image acquisition, preprocessing (image de-noising and enhancement), segmentation, and recognition technology. Further the application of machine vision technology in pavement compactness and evenness was introduced. Finally, based on the application of machine vision in other aspects of road detection, hopefully, this study can provide a reference for method of road detection.
NUMERICAL STUDY OF THE WIND TURBINE WAKE FLOW AND EFFECTS OF THE INFLOW TURBULENCE
Authors: Luo Xiaoyu , Lu Shengyu
Published: February 2019

Considering the fact that wind turbines operate at the bottom of the atmospheric boundary layer (ABL) where the turbulence is at a high level, and the difficulty of mesh generation in the fully modelled numerical simulation. It is necessary to carry out researches to study the wake flow of wind turbines with consideration of the inflow turbulence. Therefore, a numerical method generating turbulence was proposed and the results show good agreement with those in experiment, based on which the flow fields in the wake of a wind turbine at two tip speed ratios were examined in detail through three actuator methods, namely, ADM, ADM-R and ALM. The performances of these methods were studied and the error sources for each method are clarified. Moreover, the computational efficiency was revealed and the influencing factor for the efficiency is concluded. Besides, the equilibrium relation of the N-S equation in the wake is revealed, which provides a theoretical basis for the optimal arrangement of the wind turbine. It shows that the mean velocity and fluctuating velocity vary greatly near the wind turbine, and become stable gradually away from the wind turbine. The results of ALM method show the best agreement with the experiment. At near wake region, the turbulent stress term, pressure gradient term and convection term mainly contribute to the equation equilibrium, and convection term is in equilibrium with the turbulent stress term at far wake. The results of ALM method are the most accurate and the most time consuming.
INFLUENCE OF PVD-ENHANCING SOFT SOIL GROUND ON THE ADJACENT BRIDGE PILES – A 3D FEM ANALYSIS
Authors: Li Hong-quan , Wei Li-min , Feng Sheng-yang , Chen Zhi
Published: February 2019

The influence of prefabricated vertical drain (PVD)-enhancing soft soil on the adjacent bridge pile foundation is not sufficiently clear. The related studies are scarce and far behind the requirement of engineering practice. Three-dimensional finite element model (3D FEM) is established to investigate this important issue. Plastic drainage boards in the PVD are modelled by a user-defined element, which considers the axial force and permeability of the plastic drainage board, whereas its weight, shear, and torsion are not considered. The elastoplastic-consolidation coupled model is used for the soils. Field measured results of pore water pressure, ground settlement, and pile cap displacement are used to validate the 3D FEM with good accuracy. A number of useful conclusions can provide guidelines for similar projects and inform designers of the adverse effects of PVD-enhancing soft soil ground on the adjacent bridge pile foundation.
3D DYNAMIC TIME-HISTORY RESPONSE ANALYSIS OF AN ISLAND PLATFORM METRO STATION IN LOESS AREA
Authors: Ke Wang , He Siyue , Zhang Guanglong
Published: February 2019

Through the years, the seismic resistance of underground structures has attracted more and more attention, and dynamic characteristics of metro station is one of the most important issues. In this article, the 3D numerical model of Zhang Wangqu metro station along Metro Line 5 in Xi'an is established to study on seismic dynamic response of roof, floor, columns and beams in the island platform metro station. Compared with the earthquake damage of Dakai metro station in the Kobe M7.2 Earthquake and the shaking table test of metro station in loess area, results reveal that horizontal acceleration can reflect seismic wave characteristics under the horizontal seismic wave; the maximum relative displacement of roof and floor, the maximum axle force and shear force at transfer node are bigger than the standard section and reduce with the increase of buried depth; the maximum axle force and shear force of columns increases from top to bottom. The island platform metro station should focus on the structural settings of transfer node, and the columns and beams here must select materials with greater strength.
Debates en la historiografía y en las investigaciones sobre enseñanza de la historia en torno a las cogniciones y a las emociones
Authors: Latapí Escalante Paulina , Pagès Blanch Joan
Published: February 2019

El objetivo de este trabajo consiste en tratar a las cogniciones y a  las emociones en la historiografía y en las investigaciones sobre enseñanza de la historia, a fin de identificar debates clave y vislumbrar posibles derroteros para la enseñanza. La primera parte sitúa la historia de las emociones apuntando cuatro debates transversales: si las emociones deben ser explicadas en términos universales o como constructos culturales; las diferencias en la definición de categorías básicas; la carencia de relación entre cogniciones y emociones; y el status incipiente de la historia de las emociones. En la segunda parte se analizan los estados del conocimiento más recientes en el campo de la enseñanza de la historia que muestran que las investigaciones se han enfocado fundamentalmente a categorías cognitivas, y que la emocionalidad ha emergido a cuenta gotas asociada a la motivación para el aprendizaje y a los sujetos considerados protagonistas; como herramienta para facilitar la memoria;  y como conectora entre la historia y la vida del alumnado. De manera tangencial se le encontró en estudios sobre identidades, memoria y empatía sin explicitar las relaciones entre cogniciones y emociones.
Boullosa, P. et al (2017). Educación Imaginativa. Una aproximación a Kieran Egan
Authors: Chausovsky Alexis , Rossi Luis Sebastián
Published: February 2019

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Entre tradiciones e innovaciones: la enseñanza de la historia y la responsabilidad por el mundo
Authors: Pádua Franco Aléxia
Published: February 2019

Este artículo tiene la intención de suscitar reflexiones sobre el papel de la educación escolar y, más específicamente, de la enseñanza de Historia, en el siglo XXI, a partir de la presentación de una investigación-acción crítico-colaborativa desarrollada junto a profesoras y estudiantes de los años iniciales de escuela pública de Uberlândia, MG, Brasil, para crear sitios que preservan y difunden memorias digitales de diferentes sujetos que participaron y participan en la historia de la ciudad. En base a los escritos de Hannah Arendt, Citron, Cysneiros, Sibilia, Sacristán, Santos Boaventura, Grosfoguel, Citron, Cysneiros, Sibilia, Sacristán, Santos Boaventura, Grosfoguel, entre otros, defendemos que tanto la escuela como el ciberespacio son lugares que pueden propiciar el encuentro cultural de generaciones, de tradiciones y saberes plurales. También buscamos comprender las disputas involucradas en las decisiones de qué tradiciones transmitir, de qué innovaciones realizar para propiciar este encuentro.
Trust & Informality in the Indian Credit Market: A Snapshot from Recent Data
Authors: SENGUPTA Atanu , DE Sanjoy
Published: February 2019

Credit is very important in the lives of the poor people. The benefits of credit are manifold. Even after more than six and a half decade since independence, the extent and importance of informal credit have not diminished to a great degree in India. This paper aims at to understand the significance of personalized relations in the working of the informal credit market with the help of the All Indian Debt and Investment survey data. Our analysis shows that there is distinct compartmentalization of the Indian credit market with respect to the disbursement of loan from various credit agencies. Each of these categories of credit agencies has some definite target group to cater to. Apart from this clear division of loaning pattern, the importance of trust, personalized knowledge and mutual co-operation in the informal credit market has also been observed.
Aktivitas Selulase dan Xilanase dari Komplek Enzim Lignoselulolitik Termostabil Hasil Penguraian Batang Pisang
Authors: Isrami Fatria , Aminin Agustina L. N.
Published: February 2019

Penelitian tentang degradasi batang pisang menggunakan komplek enzim lignoselulolitik termostabil untuk memproduksi gula telah dilakukan. Tujuan penelitian ini mendapatkan starter turunan (St) dari konsorsium mikroba starter kompos (S0) pada media batang pisang, memperoleh selulase dan xilanase murni parsial dengan amonium sulfat, mendapatkan data aktivitas spesifik selulase dan xilanase. Hasil fermentasi pada batang pisang menggunakan konsorsium mikroba starter kompos (S0) menghasilkan starter turunan (St) yang baik sehingga dapat digunakan secara kontinyu serta gula reduksi yang dihasilkan lebih tinggi. Diperoleh selulase dan xilanase murni parsial amonium. Didapatkan pula aktivitas spesifik selulase tertinggi pada fraksi 2 sebesar 180 U/mg protein dan untuk xilanase berada pada fraksi 3 sebesar 202 U/mg protein.
Pengaruh Penambahan PVA-Sulfonasi pada Tongkol Jagung (Zea Mays) sebagai Adsorben Ion Logam Pb2+
Authors: Winda Devika Tesnar , Hastuti Rum , Haris Abdul
Published: February 2019

Telah dilakukan penelitian tentang pengaruh penambahan PVA-sulfonasi pada tongkol jagung (Zea mays) sebagai adsorben ion logam Pb2+. Penelitian ini bertujuan untuk mendapatkan adsorben tongkol jagung (A1) maupun adsorben tongkol jagung-PVA sulfonasi (A2) dan mendapatkan data efektivitas adsorben dalam menyerap ion logam Pb2+. Metode yang digunakan pada penelitian ini adalah adsorpsi dengan parameter waktu kontak 10-150 menit, konsentrasi 5-20 ppm, dan pH 1-6 . Tahapan penelitian ini meliputi pembuatan dan karakterisasi adsorben A1 dan A2 serta aplikasi untuk mendapatkan data efektivitas adsorben. Karakterisasi dengan FTIR menunjukkan adanya gugus utama selulosa yaitu OH dan BET menunjukkan adanya kenaikkan luas permukaan sebesar 13%, penurunan rata-rata pori dan penurunan total volume pori sebesar 83% dan 81%. Adsorpsi Pb2+oleh adsorben A1 kondisi terbaik terjadi pada waktu kontak 90 menit, konsentrasi 20 ppm dengan persentase berat Pb teradsorpsi 83%, dan pH 6. Sedangkan pada adsorben A2 terbaik terjadi pada waktu kontak 30 menit, konsentrasi 20 ppm dengan persentase berat Pb teradsorpsi 100%, dan pH 6. Hasil penelitian dapat disimpulkan bahwa adsorben A2 dapat digunakan sebagai adsorben ion logam Pb2+.
Adsorpsi Ion Logam Mg(II) Menggunakan Kitosan Termodifikasi Asam Askorbat
Authors: Prasetyo Wawan , Khabibi Khabibi , Widodo Didik Setiyo
Published: February 2019

Modifikasi kitosan-asam askorbat dan pemanfaatannya sebagai adsorben ion logam Mg(II), ion logam Cd(II), dan campuran ion logam Mg(II)-Cd(II), juga dilakukan penentuan pH dan waktu kontak optimum untuk adsorpsi ion Mg(II), serta mengetahui kemampuan adsorpsi kitosan-asam askorbat terhadap ion Mg(II) telah dilakukan. Tahapan penelitian terdiri dari penentuan derajat deasetilasi dari kitosan awal, proses re-deasetilasi, dan penentuan derajat deasetilasi kitosan dari hasil re-deasetilasi menggunakan FTIR. Setelah itu kitosan hasil re-deasetilasi dimodifikasi menggunakan asam askorbat dan dianalisis menggunakan FTIR dan SEM. Kitosan asam-askorbat digunakan untuk menentukan pH dan waktu kontak optimum adsorpsi terhadap ion logam Mg(II) serta kemampuannya sebagai adsorben pada ion logam Mg(II), Cd(II), dan campuran ion logam Mg(II)-Cd(II). Ditemukan bahwa pH dan waktu kontak optimum adsorpsi kitosan-asam askorbat terhadap ion logam Mg(II) yaitu pada pH 5 dan waktu kontak 12 jam. Kemampuan adsorpsi pada uji ion logam Mg(II) sebesar 24,66 mg/g, Cd(II) sebesar 24,71 mg/g serta kemampuan adsorpsi kitosan asam-askorbat pada uji campuran ion logam Mg(II) dan Cd(II), didapatkan Mg(II) sebesar 24,45 mg/g, Cd(II) sebesar 24,61 mg/g.
Pengaruh Variasi Rasio Si/Al pada Sintesis Zeolit dengan Metode Refluks
Authors: Fadlulah Muchamad , Sriatun Sriatun , Haris Abdul
Published: February 2019

Telah dilakukan sintesis zeolit dengan variasi rasio Si/Al dan waktu kristalisasi dengan metode pemanasan refluks. Variasi Si/Al yang digunakan pada penelitian ini adalah 25, 50, 75, 100. Tujuan penelitian ini adalah memperoleh material hasil sintesis natrium silikat dan aluminat dengan variasi Si/Al dan waktu kristalisasi dengan metode pemanasan refluks serta karakterisasi material hasil sintesis. Metode yang digunakan untuk kristalisasi adalah pemanasan refluks pada suhu 100 0C dengan variasi waktu 1 dan 7 hari. Hasil sintesis berupa padatan dengan komponen penyusun/campuran senyawa Hydrogen Sodium Alumium silicate, Sodium Alumunium silicate Hydrate dan Sodium Hydrogen Alumunium Silicate Hydrate. Puncak-puncak Hydrogen Sodium Alumium silicate pada d(Å) adalah 4,88 Å; 4,36 Å; 2,47 Å. Puncak-puncak Sodium Alumunium silicate Hydrate pada d(Å) adalah 4,79 (Å); 4,63 (Å); 4,33 (Å). Puncak-puncak Sodium Hydrogen Alumunium Silicate Hydrate pada d(Å) adalah 5,33 (Å); 4,48 (Å); 3,97 (Å). Pengaruh rasio Si/Al terhadap kristalinitas adalah semakin tinggi rasio Si/Al (25, 50, 75, 100), maka kristalinitas akan menurun serta tidak adanya perbedaan yang signifikan pada variasi waktu kristalisasi 1 dan 7 hari.
Sintesis Mikropartikel Kitosan dengan Proses Gelasi Ionik sebagai Adsorben Logam Cd(II)
Authors: Putra Heru Witoyo , Khabibi Khabibi
Published: February 2019

Sintesis Mikropartikel Kitosan dengan Proses Gelasi Ionik Sebagai Adsorben Logam Cd(II) telah dilakukan. Metode yang digunakan ialah gelasi ionik, yaitu pembentukan mikropartikel kitosan berdasarkan interaksi ionik antara gugus amina positif pada kitosan dengan gugus negatif polianion tripolifosfat. Mikropartikel kitosan yang terbentuk kemudian dikarakterisasi menggunakan FTIR, BET dan SEM. Kondisi optimum adsorpsi ditentukan melalui variasi pH 3-8, variasi waktu kontak 15-75 menit dan variasi konsentrasi ion logam Cd(II) 20-100 ppm. Kemudian hasilnya diinterpretasikan terhadap persamaan isoterm Langmuir untuk menentukan kapasitas adsorpsi maksimum ion Cd(II) oleh mikropartikel kitosan. Hasil karakterisasi menunjukkan bahwa ukuran partikel mikropartikel kitosan dari larutan kitosan 1% dan 2% masing-masing sebesar 15-115 µm dan 30-220 µm, serta ukuran rata-rata pori 3,293 nm dan 2,679 nm. Berdasarkan hasil analisis, keadaan optimum adsorpsi mikropartikel kitosan dari larutan kitosan 1% dan 2% terhadap ion Cd(II) adalah pada pH 5 dengan waktu kontak 45 menit dan 60 menit dan diperoleh kapasitas adsorpsi maksimum sebesar 28,01 mg/g dan 29,94 mg/g.
Pengaruh Dopan Zink Oksida pada TiO2 terhadap Penurunan Kadar Limbah Fenol dan Cr(VI) secara Simultan dengan Metode Fotokatalisis
Authors: Fatimah Siti , Haris Abdul
Published: February 2019

Penelitian tentang pengaruh dopan ZnO pada TiO2 terhadap penurunan kadar limbah fenol dan Cr(VI) secara simultan telah dilakukan. Penelitian ini bertujuan untuk memperoleh TiO2 dan komposit TiO2/ZnO, serta mengetahui aktivitas fotokatalis TiO2/ZnO terhadap degradasi fenol dan penurunan konsentrasi ion logam Cr(VI). Karakterisasi TiO2/ZnO menggunakan SEM-EDS. Kemudian fotokatalis TiO2/ZnO digunakan untuk proses degradasi fotokatalitik larutan campuran fenol dan Cr(VI) dengan sinar UV selama 240 menit dan kemudian dianalisis filtratnya menggunakan spektrofotometer UV-Vis. Fotokatalis paling baik diperoleh adalah yang menggunakan komposit TiO2/ZnO dibandingkan menggunakan TiO2. Fotokatalis berhasil mendegradasi limbah fenol sekaligus menurunkan konsentrasi ion logam Cr(VI) secara simultan.
Studi Pengaruh Temperatur terhadap Pengendapan Kobalt (Co) dengan Keberadaan Logam Seng (Zn) dalam Media Sulfat
Authors: Purba Sonita Afrita , Suyati Linda , Widodo Didik Setiyo
Published: February 2019

Penelitian tentang pengaruh temperatur terhadap pengendapan kobalt (Co) dengan keberadaan pengotor seng (Zn) dalam media sulfat telah dilakukan. Tujuan penelitian ini adalah untuk menentukan komposisi endapan Co dan Zn pada variasi temperatur pengendapan serta menentukan temperatur terbaik dalam pengendapan kobalt dengan adanya logam pengotor. Metode yang digunakan adalah elektrolisis dengan potensial terpasang tetap dan variasi temperatur. Tahapan penelitian meliputi preparasi larutan, penentuan potensial dekomposisi, elektrolisis sampel pada berbagai kondisi dan analisis. Hasil penentuan potensial dekomposisi digunakan sebagai harga potensial aplikasi pada proses elektrolisis kobalt yaitu sebesar 3,5 V. Elektrolisis sampel dilakukan pada potensial 3,5 V, pH larutan 3,0 dalam volume 100 mL pada masing-masing temperatur 30, 40, 50, 60, 70 dan 80°C. Endapan yang diperoleh dianalisis dengan menggunakan Scanning Electron Microscopy (SEM) dan Energy Dispersive X-Ray Spectroscopy (EDS). Hasil analisis SEM menunjukkan bahwa morfologi terbaik dimiliki oleh endapan suhu 60°C dengan permukaan butiran halus dan diameter terkecil yaitu sebesar 0,26 µm. Hasil analisis EDS juga menunjukkan bahwa hasil terbaik dimiliki oleh deposit hasil elektrolisis suhu 60°C dengan komposisi Co sebesar 99,73% dan mengandung 0,27% Zn.