bluuebunny/crossref_metadata_2025 huggingface dataset:
Systematic sharing of knowledge obtained in pilot projects in spatial planning
Authors: Gilcher Elena , Steinebach Gerhard
Published: February 2020

Pilot projects are implemented to obtain results and knowledge that can be reused subsequently. In this paper, we address the question of the efficient and effective distribution of insights between pilot projects. We present detailed considerations on the structures which are required to share the results and knowledge obtained through evaluations of the stages of pilot projects. By establishing such structures, the reuse of existing knowledge is significantly simplified. A common structure for pilot projects allows for information sharing between equal stages of simultaneously running pilot projects. If the obtained knowledge of these individual stages is easily accessible, the need to review a comprehensive final project report is eliminated. For future pilot projects and large-scale projects, the costs associated with reusing existing knowledge is reduced and the cost-benefit ratio improves. We exemplify this by investigating systematic information sharing between equally structured pilot projects.
An investigation into the influence of land-use, social networks and information and communication technologies on destination choice for social activities
Authors: Baburajan Vishnu , De Abreu e Silva Joāo
Published: February 2020

Information and Communication Technologies (ICT) enable individuals to travel more flexibly. The choice of location for social activities has become very flexible. In addition to this, land-use characteristics also play a vital role in the location of social activities. This work aims to analyse the influence of land-use characteristics, ICT use, and social networks in the destination choices for face-to-face social activities of university students during both weekdays and weekends. Students from the two different campuses of the Instituto Superior Técnico were presented with an online questionnaire, which was intended to collect information about their use of ICT and social networks, in addition to their travel characteristics and socio-demographics. Emphasis was made upon capturing the characteristics of social networks and ICT usage. Information on land-use characteristics was obtained from secondary sources. Factor analysis was initially carried out to extract factors related to the use of ICT and social networks; these were later used to model the destination choice for social activities. The alternatives considered for destination choice included: home or the vicinity thereof, university or the vicinity thereof, other locations (further away from home and university), and evenly spread locations – having no specific priority for any of the other three locations considered. The analysis was performed separately for travel during weekdays and weekends so that an understanding of the differences and similarities in behaviour during these different time periods could be garnered. A multinomial logit model was estimated to model this choice. The results point to the relevance of land-use characteristics, the location of close friends, and modes of interaction. Individuals residing in more accessible central, and denser areas, were more likely to have activities distributed evenly across the city. These results stress the relevance of accessibility in allowing larger and more diverse spaces to be used for social activities.
Cultural enthusiasts, civil society and the strategies of heritage-making in late Russian empire
Authors: Kharkina Anna
Published: February 2020

Cultural heritage preservation became one of the key topics of public discussion in the Late Russian Empire. These discussions led to the establishment of several initiatives for protecting Russian cultural heritage. This article demonstrates that such initiatives developed a variety of different strategies for heritage-making. Examples from the Society of the Protection and Preservation of the Monuments of Art and Antiquity in Russia and the Society of the Revival of Artistic Rus’ show that several strategies of heritage-making focusing on cultural heritage preservation were developed simultaneously by different civil groups and helped cultivate the interest of the state authority in the subject, an interest which later became institutionalised under the Soviet regime.
СЕЗОННЫЕ ИЗМЕНЕНИЯ СОДЕРЖАНИЯ ПРОТИВОГОЛОЛЕДНЫХ СРЕДСТВ В ДЕРНОВО-ПОДЗОЛИСТОЙ ПОЧВЕ В ЛАБОРАТОРНОМ И ПОЛЕВОМ ЭКСПЕРИМЕНТАХ
Authors: Герасимов А.О. , Чугунова М.В. , Поляк Ю.М.
Published: February 2020

Противогололедные средства (ПГС), применяющиеся для борьбы с ледяными и снежными отложениями в городах, являются одним из наиболее вредных антропогенных факторов. Значительное число работ по данной тематике посвящено воздействию на окружающую среду технической соли, в то время как реагентам нового поколения уделяется недостаточно внимания. В статье представлены результаты изучения сезонной динамики содержания водорастворимых солей ПГС нового поколения в дерново-подзолистой почве в условиях полевого и лабораторного экспериментов. Сопоставлены 9 ПГС, применяемых в Санкт-Петербурге – хлоридные, ацетатные и формиатные реагенты. Лабораторные опыты показали, что высокие дозы хлоридных реагентов увеличивали содержание солей в почвах до отметок, соответствующих слабому засолению (максимальные показатели – 3,96 мСм/см), потенциально опасному для растений и почвенных микроорганизмов. В полевых условиях с течением времени степень засоления почвы уменьшалась – соли ПГС вымывались из верхних горизонтов с выпадающими осадками. К концу вегетационного сезона максимальные показатели не превышали 0,29 мСм/см, что соответствовало фоновым значениям. Следовательно, снижалась токсичность загрязненных почв для растений и микроорганизмов. По результатам исследований определены наименее экологически вредные ПГС средства. К ним относятся ацетатные и формиатные реагенты «Нордвэй» и «Clearway». Хлориды магния («Бишофит») оказались менее опасными среди реагентов хлоридной группы. Также рекомендованы допустимые дозы ПГС на городских улицах. В Северо-Западном регионе сравнительно безопасной можно считать дозу 50 г/м2.
Н.И. ВАВИЛОВ КАК ОРГАНИЗАТОР НАУКИ
Authors: Трускинов Э.В.
Published: February 2020

Статья освещает деятельность Н.И. Вавилова как выдающегося организатора науки, которая осуществлялась в трудных условиях преобразования сельского хозяйства СССР. Период его научно-организационной работы составляет 20 лет (1920-1940 гг.), из них наиболее продуктивно она проходила первую половину этого срока. Снижение ее практической отдачи на руководящих постах сельскохозяйственной науки связано с социально-политическими, репрессивными коллизиями в стране и столкновениями разных научных и не научных концепций в понимании основ генетики и ее роли в продвижении аграрного производства. Несмотря на это, историческое значение организационного вклада Н.И. Вавилова в науку не преходяще. Именно поэтому оба организованных им института: Всесоюзный институт растениеводства (ВИР) – ныне Всероссийский институт генетических ресурсов растений растениеводства и Институт общей генетики, носят его имя.
Employee Abuse: Typical Case Studies
Authors: Demidov N. V. , Ilyin E. A.
Published: February 2020

The article draws attention to the gap in the legal regulation of relations on the abuse of subjective labor rights by the employee. As a source of information, acts of official interpretation, judicial acts on cases of abuse of labor rights were used. The most typical, frequently encountered examples of abuses from the point of view of domestic courts are examined – disproportionately large severance pay, employee evasion from getting a work book, hiding a certificate of incapacity for work, hiding union membership. A proposal is made to improve enforcement in the field of abuse of labor rights by issuing an explanation at the level of the Supreme Court of the Russian Federation. Two criteria are proposed for recognizing an employee’s act as an abuse of subjective law: informational and conscious. In the first case, the party to the employment relationship has information that is not communicated to the other party, and subsequently appeals to them in order to exercise its right. In the second, circumstances should be recognized as an abuse of labor rights in which the party knew that it had a subjective right, but did not use it to further derive benefits.
ATIVIDADE FÍSICA E GESTAÇÃO: RISCOS E BENEFÍCIOS
Authors: Calomeni Mauricio Rocha , Fumian Ferreira Alice de Fátima Negreiros , Arêas Neto Nilo Terra , Morales Anderson Pontes
Published: February 2020

O objetivo do estudo foi verificar através da pesquisa de campo relatos de experiência sobre a realização de atividades físicas durante a gestação observando seus benefícios para as gestantes e para o desenvolvimento do feto. A pesquisa se caracterizou como ex-post-fact por não tentar manipular a variável dependente, atendo-se a descrever os efeitos do estilo de vida de cada grupo sobre essa variável. Para tanto foram recrutadas em academias e centros de atividades físicas mulheres que durante o período de gravidez praticaram algum tipo de atividade física regular, além disso, também foram recrutadas na comunidade mulheres que não praticaram qualquer tipo de atividade física durante a gravidez. Assim a amostra foi de 16 mulheres sendo que 8 formaram o grupo Gravidez Ativa (GA) e 8 compuseram o grupo Gravidez Sedentária (GS). Foi elaborado especificamente para este estudo um questionário indivídual, e específico para atender as indagações relacionadas à prática de atividade física durante o período gestacional. Concluiu-se conclusão de que mulheres ativas fisicamente na gravidez conseguem manter a rotina do dia-a-dia, tiveram uma recuperação pós-parto excelente. Além disso, foi observado que a inatividade física de um dos grupos de gestantes resultou em um aumento significativo no peso corporal.
ESTADO GERAL DE SAÚDE DOS PROFISSIONAIS ENFERMEIROS DE UM HOSPITAL DE REFERÊNCIA DA REGIÃO NORTE E NOROESTE DO ESTADO DO RIO DE JANEIRO
Authors: Freire Lucas A. , Freire Thayane C. S. , Pereira Nina A. F. , Santos Carolina M. , Palermo Thaís A. C.
Published: February 2020

O cuidado de enfermagem é exercido por profissionais de diferentes níveis de formação, caracterizado pelo desenvolvimento de processos de trabalho específicos e pela necessidade de assistência constante ao paciente, que exige a implementação de turnos ininterruptos, de revezamento, plantões de final de semana, noturnos e feriados. Nessas condições, os trabalhadores de enfermagem têm se submetido a diferentes cargas de trabalho geradoras de processos de desgaste físico, interferindo diretamente em sua saúde como na qualidade da assistência prestada. Neste contexto, o enfermeiro além de prestar assistência, desempenha ainda a função de coordenar sua equipe. Por isso, o estado geral de saúde é relevante para a construção multidimensional da saúde, trata-se de um indicador subjetivo que correlaciona componentes físicos e emocionais, além de questões do bem-estar e da satisfação com a vida social e profissional. Sendo assim, o objetivo deste estudo é: discutir sobre o estado geral de saúde dos enfermeiros no contexto atual da enfermagem. Este estudo foi realizado através do método de revisão integrativa da literatura, com análise de 21 publicações científicas, disponíveis em base de dados online SCIELO E BVS, publicados nos últimos 10 anos (2008–2018). Utilizou-se os seguintes DeCS: Saúde do Trabalhador; Enfermagem; Qualidade de Vida. Para a organização e escolha dos achados, a pré-seleção dos artigos foram realizadas através da leitura do título e resumo. Há a constatação de que a enfermagem, enquanto trabalho inserido no setor hospitalar, na prestação de serviços de assistência à saúde, sofre impactos biopsicossociais, que são constatados pelas más condições de trabalho, o que é inquestionável e comprovado pelo adoecimento dos trabalhadores, cujo adoecimento não ganha a transparência e a visibilidade necessárias nas estatísticas oficiais. Portanto, conclui-se que uma atenção a sua própria saúde se faz necessária, considerando que, além de um bom estado geral de saúde para garantir uma vida saudável, bem como recomendado a todo indivíduo, deve haver uma preparação e condições biopsicossociais satisfatórias para o exercício de suas atribuições laborais extremamente complexas.
Hole-Hole Tamm-Dancoff-Approximated Density Functional Theory: A Highly Efficient Electronic Structure Method Incorporating Dynamic and Static Correlation
Authors: Bannwarth Christoph , Yu Jimmy K. , Hohenstein Edward G. , Martínez Todd J.
Published: February 2020

The study of photochemical reaction dynamics requires accurate as well as computationally efficient electronic structure methods for the ground and excited states. While time-dependent density functional theory (TDDFT) is not able to capture static correlation, complete active space self-consistent field (CASSCF) methods are deficient in their ability to describe dynamic correlation. Hence, inexpensive methods that encompass both static and dynamic electron correlation effects are of high interest. Here, we describe the hole-hole Tamm- Dancoff approximated (hh-TDA) density functional theory method, which is closely related to the previously established particle-particle random phase approximation (pp-RPA) and its TDA variant (pp-TDA). In hh-TDA, the N-electron electronic states are obtained through double annihilations starting from a doubly anionic (N+2 electron) reference state. In this way, hh-TDA treats ground and excited states on equal footing, thus allowing for conical intersections to be correctly described. The treatment of dynamic correlation is introduced through the use of commonly-employed density functional approximations to the exchange-correlation potential. hh-TDA appears to be a promising candidate to efficiently treat the photochemistry of organic and biochemical systems that involve several low-lying excited states – particularly those with both low-lying pipi* and npi* states where inclusion of dynamic correlation is essential to describe the relative energetics. In contrast to the existing literature on pp-TDA, we employ a functional- dependent choice for the response kernel in pp- and hh-TDA, which closely resembles the response kernels occurring in linear response and collinear spin-flip TDDFT.
Tailoring Polymer Dispersity by Controlled Radical Polymerization: A Versatile Approach
Authors: Whitfield Richard , Parkatzidis Kostas , Truong Nghia , Junkers Tanja , Anastasaki Athina
Published: February 2020

Dispersity (Ɖ) can significantly affect polymer properties and is a key parameter in materials design; however, current methods do not allow for the comprehensive control of dispersity. They are limited in monomer scope, may require the use of flow-based systems and/or additional reagents (e.g. termination agents or co-monomers), and are often accompanied by multimodal molecular weight distributions, low initiator efficiencies or poor end-group fidelity. Herein, we report a straightforward and versatile batch method based on reversible addition-fragmentation chain transfer (RAFT) polymerization which enables good control over Ɖ of a wide range of monomer classes, including acrylates, acrylamides, methacrylates and styrene. In addition, our methodology is compatible with more challenging monomers such as methacrylic acid, vinyl ketone and vinyl acetate. Control over Ɖ is achieved by mixing two RAFT agents with sufficiently different transfer activities in various ratios, affording polymers with monomodal molecular weight distributions over a broad dispersity range (Ɖ ~ 1.09-2.10). Our findings were further supported by simulations through the use of deterministic kinetic modelling which was fully in line with our experimental data, further confirming the power of our methodology. The robustness of the concept is further demonstrated by the preparation of well-defined block copolymers via chain extension of all polymers regardless of the initial Ɖ.
Direct Arsenic Removal from Water Using Non-Membrane, Low Temperature Directional Solvent Extraction
Authors: Guo Jiaji , Luo Shirui , Liu Zeyu , Luo Tengfei
Published: February 2020

Arsenic (As) poisoning in water due to natural minerals or industrial pollution is a critical global problem that threatens the health and life of billions. Current arsenic removal techniques involving chemical reaction, ion exchange, or membrane processes can be expensive, inaccessible or infeasible for underdeveloped regions or remote areas. Here, we demonstrate that using a so-called directional solvent extraction (DSE) process, arsenic ions in water can be effectively removed without the need of a membrane or chemical reaction, and this process promises to utilize very low temperature heat (as low as 45 oC). We have tested feed water with different arsenic concentrations and arsenic ions in different forms (As-III and As-V) commonly found in nature. It is demonstrated that DSE using decanoic acid as the directional solvent can purify contaminated water to meet the drinking water standard (arsenic concentration < 10 parts per billion, ppb), and the arsenic removal efficiencies are higher than 91% for As-III and 97% for As-V. Moreover, DSE can remove As-III directly without the need of pre-oxidation, which is required in most of the state of art techniques. DSE can potentially lead to effective arsenic removal technologies with low resource settings that are suitable for remote and underdeveloped regions, which are impacted by arsenic poisoning the most.
Unmasked Primary Amines as C-Nucleophiles for Catalytic C–C Bond-Formation
Authors: Ryder Alison , Cunningham William , Ballantyne George , Mules Tom , Kinsella Anna , Turner-Dore Jacob , Alder Catherine , Edwards Lee , McKay Blandine , Grayson Matthew , Cresswell Alex
Published: February 2020

A practical, catalytic entry to α,α,α‑trisubstituted (α‑tertiary) primary amines by C–H functionalisation has long been recognised as a critical gap in the synthetic toolbox. We report a simple and scalable solution to this problem that does not require any in situ protection of the amino group and proceeds with 100% atom-economy. Our strategy, which uses an organic photocatalyst in combination with azide ion as a hydrogen atom transfer (HAT) catalyst, provides a direct synthesis of C-alkylated amines or γ‑lactams, including valuable azaspirocycles. We anticipate that this methodology will inspire new retrosynthetic disconnections for substituted amine derivatives in organic synthesis, and particularly for challenging α‑tertiary primary amines.
UMA CRÍTICA HERMENÊUTICA AO PSEUDO PRINCÍPIO DA AFETIVIDADE
Authors: Lima Simone Alvarez
Published: February 2020

O pseudo princípio da afetividade é uma construção da jurisprudência no Brasil que vem ganhando força ao longo dos anos, mesmo sem estar expressamente previsto em nenhuma lei. Streck é um autor que o entende como um pseudo princípio e alerta a algum tempo sobre os riscos do uso, dentre eles a discricionariedade judicial. A aplicação do princípio da afetividade foi feito de forma voluntária pelos juízes, demonstrando o descompromisso com a deontologia do direito e isto resultou na permissão judicial para situações que a lei não permite, tais como conceder direitos à concubina, dois pais e uma mãe ou vice-versa registrando um filho e na união estável poliafetiva.
O DIREITO DO TRABALHO NA ERA DAS INCERTEZAS: DO PROCESSO CONSTITUINTE A JUDICIALIZAÇÃO
Authors: Schneider Aimée , Botelho Tayssa
Published: February 2020

O presente artigo almeja proceder ao contraste entre a abordagem empregada ao longo do período de atividade da Assembleia Nacional Constituinte de 1987-88 para as questões atinentes aos direitos do trabalhador e os efeitos concretos das recentes mudanças trabalhistas. Tal exame se alinha à necessidade, sociopoliticamente instaurada, de revisão dos trabalhos constituintes à luz do trigésimo aniversário da Constituição da República Federativa do Brasil de 1988, completos no próximo dia 05 de outubro. A partir desta análise, busca-se investigar o modo como o constitucionalismo, tradicionalmente apresentado como um mecanismo garantidor da previsibilidade nas relações trabalhistas, hoje se mostra incapaz de processar o ritmo das mudanças infligidas a estas pelos procedimentos de reestruturação empresarial. Face a tal conjuntura, o Poder Judiciário se revela como um agente de políticas diretas e indiretas, conformando-se como uma arena, não obstante contenciosa, onde os trabalhadores poderão mobilizar seus direitos, em um verdadeiro exercício de cidadania.
SUPREMACIA JUDICIAL E COMPETÊNCIAS MONOCRÁTICAS: DUAS CRÍTICAS SOBRE A ATUAÇÃO DO SUPREMO TRIBUNAL FEDERAL AO LONGO DE 30 ANOS DE VIGÊNCIA DA CONSTITUIÇÃO FEDERAL DE 1988
Authors: Leba Thalles Furtado
Published: February 2020

O presente trabalho visa a analisar criticamente dois fenômenos atinentes ao exercício da jurisdição constitucional no Brasil, após o advento da Constituição Federal de 1988. Em primeiro lugar, se ocupa da noção de Supremacia Judicial e como, na prática, essa ideia pode ser suplantada por uma relação dialógica entre os Poderes. Em segundo lugar, o trabalho esmiuçará a questão do uso excessivo de competências monocráticas da mais alta Corte do país e como esse fator pode causar problemas jurídicos, democráticos e institucionais. A tese adotada é de que o Supremo Tribunal Federal não pode empreender atuações excessivamente individualistas, uma vez que pode ver reduzida a sua legitimidade institucional. Ao final de cada seção, o trabalho tentará propor soluções para eventuais problemas diagnosticados.
LEGITIMIDADE ATIVA DO PARTIDO POLÍTICO NO MANDADO DE SEGURANÇA COLETIVO: UMA PROPOSTA DE RELEITURA À LUZ DA CONSTITUIÇÃO DE 1988
Authors: Quintas Fábio Lima , Mendes João Paulo Sousa
Published: February 2020

A possibilidade de se impetrar mandado de segurança coletivo tornou-se expressa no ordenamento jurídico brasileiro a partir do disposto no art. 5º, inciso LXX, da Constituição Federal de 1988, cuja alínea “a”, conferiu legitimidade ao partido político. No entanto, a Constituição não definiu os limites da legitimidade ativa do partido político. A Lei nº 12.016, de 2009, primeira regulamentação infraconstitucional do mandado de segurança coletivo limitou a legitimidade ativa do partido político à tutela de direitos ou interesses coletivos e individuais homogêneos relativos a seus filiados ou à finalidade partidária. Sendo assim, busca-se aferir, em vista do papel desempenhado pelos partidos políticos no nosso sistema jurídico e político, da origem desse instrumento processual na Constituição Federal de 1988 e do chamado microssistema de tutela de direitos e interesses coletivos, em que medida o art. 21 da Lei nº 12.016, de 2009, é compatível com a Constituição Federal de 1988.
PRIVACIDADE e LEI GERAL DE PROTEÇÃO DE DADOS PESSOAIS
Authors: Finkelstein Maria Eugenia , Finkelstein Claudio
Published: February 2020

É notório que desde o advento da internet, a coleta de dados invadiu sobremaneira a privacidade das pessoas. Novas normas se faziam necessárias à proteção da privacidade na sociedade da informação.A LGPD veio solucionar esse problema.
Influence of Developmental Δ9-Tetrahydrocannabinol Exposure on Longitudinal Cognitive Flexibility and Neuron Morphology in the Prefrontal Cortex: A Research Protocol
Authors: Nguyen Anthony , Omazic Lucas J.
Published: February 2020

Cannabis is one of the most commonly used substances during pregnancy. The components of cannabis are able to cross the placental barrier. Furthermore, perinatal cannabis exposure in affected offspring has been associated longitudinally with cognitive deficit in the form of attention. Therefore, we hypothesize that developmental Δ9-tetrahydrocannabinol (THC) exposure affects cognitive flexibility and leads to permanent neuron morphology changes in affected offspring. We propose to test these hypotheses in the offspring of 25 C57BL/6 THC-exposed pregnant mice by conducting a visual discrimination with reversal task (VDR) at post-gestational day 40 (P40), P80, P120 and a Golgi-Cox staining protocol at P140 in pyramidal cortical neurons of layer II/III and VI of the prefrontal cortex. The combination of this behavioural paradigm and the dendrite analysis for length, diameter and volume can provide insight on neurobiological consequences of perinatal cannabis and may lead to the development of therapeutic interventions in affected children.
Radar FMCW dengan IQ Demodulator Jamak untuk Deteksi Pernafasan pada Pengaruh Clutter
Authors: PRATIWI HANA , HIDAYAT MUJIB RAMADAN , MAARIF AHMAD FATHAN , PRAMUDITA ALOYSIUS ADYA , SURATMAN FIKY YOSEP
Published: February 2020

ABSTRAK

Pada pendeteksian pernafasan menggunakan sistem radar maka adanya pantulan dari sejumlah objek statis di sekitar target akan memberikan pengaruh pada hasil pendeteksian. Modifikasi pada sistem FMCW telah diusulkan untuk memberikan kemampuan dalam mendeteksi pernafasan multi target. Konsep deteksi fasa dilaborasi pada metode usulan untuk menghadirkan kemampuan deteksi pergeseran kecil. IQ demodulator jamak diusulkan sebagai konsep

modifikasi pada sistem FMCW untuk permasalah tersebut. Pengujian kemampuan sistem usulan pada kondisi clutter dilakukan dengan melakukan kajian teoritis dan simulasi komputer. Pengujian dilakukan pada kawasan waktu dan kawasan frekuensi. Hasil-hasil yang diperoleh menunjukkan bahwa metode IQ demodulator jamak yang diusulkan memiliki kemampuan dalam mendeteksi pernafasan secara multi target dan mampu mempertahankan kemampuan tersebut pada kondisi adanya clutter.

Kata kunci: deteksi pernafasan, multi target, FMCW, IQ demodulator, clutter

ABSTRACT

In the detection of respiration using a radar system, the reflection of static objects around the target will have an effect to the detection results. Modifications to the FMCW system have been proposed to provide the ability to detect multi-target respiration. The concept of phase detection is elaborated on the proposed method to provide small shift detection capabilities. Multiple IQ demodulator is proposed as a modified concept on the FMCW system for this problem. Testing the ability of the proposed system under clutter conditions is carried out by conducting theoretical studies and computer simulations. Tests carried out in the time zone and frequency region. The results obtained indicate that the proposed multiple-method IQ demodulator has the ability to detect multi-target respiration and is able to maintain that ability in the presence of clutter.

Keywords: respiration detection, multi target, FMCW, IQ demodulator, clutter
Analisis Penerapan Kendali Otomatis berbasis PID terhadap pH Larutan
Authors: HADIATNA FEBRIAN , DZULFAHMI ALFI , NATALIANA DECY
Published: February 2020

ABSTRAK

Nilai pH pada larutan nutrisi tanaman hidroponik merupakan salah satu parameter penting agar tumbuhan berkembang dengan baik. Salah satu metode pengendali otomatis adalah menggunakan pengendali PID. Penelitian ini bertujuan untuk menganalisis penerapan sistem pengendali pH larutan nutrisi menggunakan PID. Proses pengendalian diatur oleh larutan pH up dan larutan pH down. Pengujian pengendali PID terdiri dari pengujian pengendali Propotional (P), pengendali Propotional-Inrtegral (PI), dan Propotional-Integral-Derivative (PID). Hasil pengujian dengan menggunakan metode tunning trial and error diperoleh hasil pengendali Propotional menghasilkan respon lebih baik dengan nilai Kp=1, hasil yang didapat sistem tidak mengalami overshoot/undershoot dengan waktu yang dibutuhkan mencapai titik kesetimbangan di setpoint yaitu 126 detik. Agar sistem terjaga dinilai setpointnya sistem pengendali akan bereaksi terhadap perubahan error, sehingga memerlukan lebih banyak larutan pH up dan pH down.

Kata kunci : Hidroponik, pH, Arduino, kendali PID.

ABSTRACT

The pH value of hydroponic-plants nutrient solution is one of the important parameters for plants to grow up well. This study aims to analyze the application of a system to control the pH of nutrient solutions using PID which is controlled by a pH up solution and a pH down solution. PID controller testing consists of Propotional (P) control test, Propotional-Inrtegral (PI) controller, and Propotional-Integral-Derivative (PID) controller. The test results obtained using the tunning

trial and error method obtained a Propotional controller result have a better response with the value Kp=1, the system does not overshoot / undershoot. the time needed to reach a stable value at setpoint is 126 seconds. so that the system is maintained at its set point the control system will react to error changes, that is why it requires more pH up liquid and the pH liquid down.

Keywords : Hydroponic, pH, Arduino, PID controller.
Analisis Kinerja Jaringan Hybrid Kooperatif Device-to-Device 5G menggunakan Teknik Pemilihan Relay Reaktif
Authors: AZMI MUHAMMAD RAUDHI , MELINDA MELINDA , NASARUDDIN NASARUDDIN
Published: February 2020

ABSTRAK

Sistem komunikasi kooperatif device-to-device (D2D) merupakan salah satu strategi peningkatan kecepatan data dan efisiensi energi. Pada sistem kooperatif, mekanisme relay merupakan faktor penting dalam meneruskan informasi. Model jaringan merupakan isu penting untuk meningkatkan kecepatan, kinerja dan efisiensi energi pada sistem. Oleh sebab itu, makalah ini menganalisis kinerja jaringan hybrid kooperatif D2D pada teknologi 5G menggunakan teknik pemilihan relay reaktif atau reactive relay selection (RRS). Beberapa parameter kinerja penting telah simulasikan, seperti model jaringan, SNR, BER dan throughput. Hasil simulasi menunjukkan bahwa jaringan kooperatif hybrid-relay dengan RRS menghasilkan nilai BER yang lebih kecil dan throughput yang lebih tinggi dibandingkan model multi-relay dan multi-hop relay. Dengan demikian, jaringan hybrid-relay dengan pemilihan relay lebih efisien dibandingkan jaringan lainnya.

Kata kunci: sistem komunikasi kooperatif, pemilihan relay reaktif, multi-hop, multi-relay, hybrid-relay.

ABSTRACT

A device-to-device (D2D) cooperative communication system is one of the strategies to increase data speed and energy efficiency. In a cooperative system, the relay mechanism is an important factor in forwarding information. A network model is an important issue to increase the speed, performance and energy efficiency of the system. Therefore, this paper analyzes the performance of D2D cooperative hybrid networks on 5G technology using reactive relay selection (RRS)

techniques. Some important performance parameters have been simulated, such as network models, SNR, BER and throughput. Simulation results show that hybridrelay cooperative networks with RRS produce smaller BER values and higher throughput compared to multi-relay and multi-hop relay models. Thus, hybridrelay networks with relay selection are more efficient than other networks.

Keywords: cooperative communication system, reactive relay selection, multihop, multi-relay, hybrid-relay.
Perbandingan Ekstraksi Fitur dan Proses Matching pada Autentikasi Sidik Jari Manusia
Authors: PRASASTI ANGGUNMEKA LUHUR , IRAWAN BUDHI , FAJRI SETIO EKA , RENDIKA ANANDA , HADIYOSO SUGONDO
Published: February 2020

ABSTRAK

Sidik jari merupakan biometrik yang sering digunakan dalam teknologi autentikasi. Terdapat banyak metode yang bisa digunakan untuk membuat sistem klasifikasi sidik jari. Maximum Curvature Points (MCP) umumnya digunakan untuk ekstraksi citra pembuluh darah jari yang juga digunakan sebagai autentikasi. Pada penelitian ini akan diuji performansi dari metode MCP jika dibandingkan dengan metode yang umum digunakan pada proses pengenalan sidik jari, yaitu Hit and Miss Transform (HMT). Perbedaan domain, yaitu spasial pada Normalized Cross Correlation (NCC) dan frekuensi pada Phase Correlation (PC) dalam proses matching ternyata juga mempengaruhi performansi sistem. Hasilnya menunjukkan bahwa penggunakaan metode MHTNCC memiliki tingkat akurasi yang lebih baik dalam pengenalan sidik jari yaitu 92% untuk pengenalan ibu jari dan 98% untuk pengenalan jari telunjuk, dibandingkan dengan menggunakan metode MCP-PC yang hanya memiliki tingkat akurasi sebesar 88% untuk pengenalan ibu jari dan 92% untuk pengenalan jari telunjuk.

Kata kunci: sidik jari, MCP, HMT, phase correlation, normalized cross correlation

ABSTRACT

Fingerprint is one of the biometric systems that are often used in an authentication technology. There are many methods that can be used to develop fingerprint’s classification system. Maximum Curvature Points (MCP) are generally used for finger vein image extraction which is also used as authentication. MCP performance will be compared to common method in finger print recognition, Hit and Miss Transform (HMT). Using different domains, spatial in Normalized Cross Correlation (NCC) and frequency in Phase Correlation (PC) affect the system performance. The results show that the application of HMT-NCC more accurate in terms of finger print’s recognition, 92% in accuracy for thumb recognition and 98% accuracy for index finger recognition, while MCP-PC is only reach 88% in accuracy for thumb recognition and 92% accuracy for index finger recognition.

Keywords: fingerprint, MCP, HMT, phase correlation, normalized cross

correlation
A New Curriculum for an Uncertain Future
Authors: Vadillo Guadalupe , Bucio Jackeline
Published: February 2020

Uncertainty is a keyword whenever the future is described. As educators, we must contribute to promote a feeling of ease among our youth in an uncertain world. Our students must be able to discover problems and face those that are ill-defined, to build innovative solutions, to analyze situations using non- traditional viewpoints and to happily and effectively respond to changing constraints. This work presents the curricular redesign process of Mexico's national university virtual high school. The program is aimed at building the fundamental cultural basis that is expected from this educational level. We expect its contents, structure and learning activities to constitute a two-year training for students to feel comfortable and be productive while facing uncertain environments. The redesign process involved a diagnosis, the definition of its design constraints and general structure, and the development of an educational social network to socialize and improve the syllabi, as well as an intelligent tutoring system that will support teachers’ work.
Challenges and Impact of Teaching English in Limited Access to Technology Environment
Authors: Hoxha Merita , Tafani Vilma , Kennetz Keith
Published: February 2020

Technology surrounds us everywhere, every moment. It seems almost impossible to imagine our life without technology, but in fact there are places and people who have little in the way of technological resources. This is the case for 47 underprivileged young learners (third graders) in the city of Elbasan, Albania. These third graders are part of a project which aims at enhancing their English with the aid of 12 pre-service teachers of English, through fun activities, games and use of technology. In a time when technology has become a common educational tool in many developed countries, these third graders have very limited technology access both at home and at schools. They live in the “Global Village” and should be well prepared to participate in it. For this reason, the project is trying to give these students as much access to technology in the classroom as possible to make learning English fun, and at the same time researching how would the use of technology influence their learning. This paper tries to answer the following research questions: 1. How does the use of technology influence the English language learning? 2. What are some of the challenges that pre-service teachers face while teaching in a low tech class? To answer these research questions observation and interviews were conducted. The observations were carried out from November 2018- January 2019 and the interviews in January 2019. The results indicate that third graders are more enthusiastic and engaged in learning during classes when the activities include the use of technology. The pre-service teachers faced various challenges when using technology in class such as the lack of tech equipment, not being able to observe many activities which integrate technology in class and the lack of experience of employing tech equipment. When available both third graders and pre-service teachers embraced the use of technology as a tool to make teaching and learning English fun and inclusive.
Embedding the Cartesian Space Principles in a Smile, an Inclusive Learning Method for K12.
Authors: Vuga Stefano , Vuga Eleonora
Published: February 2020

It is now well established that the negative emotions the child experiences for not understanding a mathematical topic mark their emotional memory associated with that topic. We’ve been investigating which tangible and accessible tools prevent the development of a pathological allergy to a fundamental concept as it is the Cartesian space, seeking for kid-friendly gates to the subject. When fear and pain for not understanding traces an escape pattern from this topic at a young age the child’s ability to relate to all its didactic applications can be seriously jeopardized, marking (when not identified) the school career and sub-sequent attitudes towards all the fields of theoretical and practical application of it.

The elementary approach in explaining the Cartesian space principles to the children remains mainly linked to traditional visualization models of three-dimensional images on two-dimensional space, e.g., paper, blackboard, and screens. Only recently, augmented reality has been used as a teaching aid for visualizing objects in the actual three-dimensional space. Those systems are suitable for children naturally predisposed to mathematical and/or visual-cognitive intelligence, who are not suffering from any visual impairment. This is a non-inclusive system of access to understanding such fundamental topic as the Cartesian space. Topic which is later essential to an extended comprehension of geometry, mathematics, representation of objects, and concepts. The aim of the research was to find and test a support system to complement the standard two-dimensional and visual-only approach and to guarantee a complete and consistent sensorial experience of the definition of the Cartesian space through physical, material, and modular forms. We sought to create a bond between the concept and its real representation. This system should be extended to different ages of development and types of intelligence and backgrounds, transversal to environments and contexts of usage (family/school), also for visually impaired children. The developed tools pro-vide the child an early and positive emotional bond, prior to any traditional scholastic approach, with the fundamental principles of the Cartesian space through methods such as free play, trial and error, experimentation and share of the emotions while engaging in cooperative activities.
Simple Answers to Difficult Issues about Learning and Learners Internationally at pK-12 Levels
Authors: Gyori Ildiko
Published: February 2020

The traditional educational model was designed in the industrial age of the 20th century. That model is outdated for various reasons. This paper is introducing a case study of a project, "The S-Cool Days Program," which applies new routines to reframe those aspects. The introduction of the Program does not require significant changes in the curriculum, can be realized in Art and Music classes, or as a homeroom activity in advisory class.

The Program was implemented in Europe, in two countries, in 3 different school types, one American School, a School Start-up and a traditional public school. The activities are introduced by creative art and craft sessions, are engaging enough to invite students to present their passion projects in the classroom, to take the first steps towards purpose-driven learning, learn how to focus on monitoring and expressing of emotions, among other things.

The goal is to have some school habits reframed, that results in mindset change. New values are introduced and through them, the class is transformed into a comfort zone for students to envision and follow their dreams. The expected changes can be realized by easy-to-do new routines, which maintain the newly introduced behaviors. The Program supports the 4C's; the 21st-century skills education is supposed to focus on: the creativity, communication, collaboration, and critical thinking.

As visualized on social maps, the research realized before and after the Project shows changes in the social relations of the participating classes after the new routines were introduced. New mutual common choices were emerging in all participating grades, classes. The paper shares insights from participating teachers, how they felt in and after the Program, what changes did they identify in the classroom.
Can virtual reality act as an affective machine? The wild animal embodiment experience and the importance of appearance
Authors: Sierra Rativa Alexandra , Postma Marie , Van Zaanen Menno
Published: February 2020

In view of the growing urgency to protect wildlife, the general goal of our research is to develop an immersive virtual experience where users can step into the ‘shoes’ of wild animals. The specific objective of this research is to explore the possibility of creating a strong emotional connection experience with a virtual animal body. In a game setting, users explore a simulated natural habitat of the animal. At the end of the game, users experience a distress event during which they become the target of an illegal animal hunter. The users receive physical feedback through haptic virtual reality suits (vibrating motors) that mimic the sensation of feeling pain of a hunter's shot. We compare the perceived pain, empathy, immersion, and embodiment experience evoked through a game character with a natural body (beaver), with an artificial body (robot beaver), and an amorphous body. The results of this investigation show a significant effect of game character appearance and perceived pain during the distress event. Moreover, we find a significant effect of game character appearance on immersion. These results suggest that the design of the game character appearance can influence users’ emotional connectedness to the character and the game experience.
Project Accelerate (3-Year Review): Closing the Access Gap to Physical Science Careers and Academic Programs
Authors: Greenman Mark , Duffy Andrew
Published: February 2020

Project Accelerate is a National Science Foundation funded program providing access to a rigorous introductory college level College Board Advanced Placement physics course to students attending high schools where this opportunity is not part of the regular high school program of study. High schools in the United States not offering this opportunity in general are either small rural schools or high schools in districts serving a larger than average proportion of economically disadvantaged families. Students in Project Accelerate do as well on the AP exam as their peer groups enrolled in traditional AP® Physics 1 classrooms. In addition, students in Project Accelerate show a marked increase in interest in pursuing post high school academic programs in science.
Embedding Critical Thinking in International Studies Language Programs
Authors: Ahmed Hossam
Published: February 2020

In the language component of International Studies BA programs, students do not attain proficiency levels high enough to enable them to develop their critical thinking skills in dealing with texts from the target culture(s). This is especially true for the so- called Less-Commonly Taught Languages. Designing the final course in the language sequence as a 'Language in Practice' course addresses this issue through Task-Based Language Teaching. Abandoning proficiency goal for higher performance goals, and focusing on only a subset of language modes of communication enables integrating critical thinking skills in specific relevant contexts. Maintaining only relevant aspects of Task-Based Language Teaching and allowing others to be carried out in English rather than the target language can preserve task authenticity, and allow for more in- depth development of critical thinking skills using texts from the target cultures.
Effect of Physical Modeling and Computer Animation Implemented with Social Constructivist Instruction on Understanding of Human Reproductive System
Authors: Esendemir Eskin Gonca , Geban Ömer
Published: February 2020

Purpose of the study, was to compare effectiveness of the physical modeling and computer animation implemented with social constructivist and traditionally designed instruction on 10th grade students’ understanding of human reproductive system, motivation to- wards learning biology and types of achievement goal orientation. Design of the study was quasi-experimental with 125 students from six intact classes in a private high school in Ankara. Three groups for both experimental and controlled groups were randomly as- signed. Students in experimental and control group were exposed to computer animation and physical modeling implemented with social constructivist instruction and traditionally designed biology instruction with respectively.

Results of MANOVA indicated that experimental group showed significantly better acquisition of the scientific concepts and higher motivation towards biology learning than traditionally designed biology instruction. Analysis of ANCOVA showed that students in control group had significantly higher tendency to have performance approach and performance avoidance goals. In contrary there is no significant difference in between two groups related with mastery approach and mastery avoidance goals.
The Learning Network Program – An online collaborative methodology
Authors: Clini Mariana
Published: February 2020

The Learning Network Program is an initiative and an online collaborative methodology which can be applied to all age ranges, with students from the beginner level up to university students. It is an interschool project promoted by the Brazilian NGO Instituto Crescer since 2010, and it is been promoting interaction between schools from different parts of the world. Teachers, together with their students, work on a topic proposed by Instituto Crescer, relative to the environment, historical memory, citizenship or culture of the region where the school is located. The whole process is documented in a virtual community, such as Facebook, by the teachers themselves, who also have the objective of sharing the work of the other schools with their students. At one point of the project, students have a video conference call to exchange impressions and experiences about the work they did. Students not only become familiar with other cultures, but also begin to gain deeper knowledge about their own reality.
The Effects of Interactive Whiteboard on the Academic Performance of Deaf Students in Federal College of Education (SP), Oyo, Nigeria
Authors: Taiwo Sunday , Taiwo Ogunpeju
Published: February 2020

As interactive whiteboard (IWB) becomes more popular, teacher educators and students are expected to teach and learn using interactive whiteboard: This study was conducted at the Federal College of Education (Special), Oyo during first semester of 2017/2018 academic session in order to determine the effects of IWB on the academic performance of the deaf and hard of learning students who attended “Educational Technology: Theory and Practice” course. The finding gained in this research showed that a significant difference in favour of the IWB class versus the conventional class in the posttest. In the IWB class, IWB system was used. Therefore, it was seen that the use of IWB system increased the student achievement effectively.