bluuebunny/crossref_metadata_2025 huggingface dataset:
MANAS BUTHELEZI: THE CHURCHLEADER, LIBERATION ACTIVIST AND SCHOLAR IN THE SOUTH AFRICAN CONTEXT
Authors: Mashabela James Kenokeno , Madise Mokhele
Published: May 2019

This article celebrates and honours Manas Butheleziâ€™s life by examining his active contribution in the spiritual, political, social and socio-economic spheres. An analysis of his contribution is offered by firstly examining his academic career, church work and his contribution to the recent history of Christianity. Secondly, I provide an overview of his involvement in political affairs and with the Lutheran community.Finally, I focus on Butheleziâ€™s service in the South African Council of Churches (SACC).
THE OPERATION OF MEMORY IN TRANSLATION: ON MOFFATâ€™S DESECRATION OF THE BATSWANA LINGUISTIC HERITAGE IN THE PRODUCTION OF THE 1857 ENGLISH-SETSWANA BIBLE
Authors: Mothoagae Itumeleng D , Semenya Boshadi Mary
Published: May 2019

The translation of the Bible into Setswana stands out in the history of the 19th century missionariesâ€™ project to expand Christian religion among the Batlhaping of South Africa. While the translation of the bible into Setswana can be regarded as a revolutionary achievement, unsettling questions are raised that centre on issues of standardization of Setswana, whose interests are served, tensions around representation and justice, and preservation of semantic and stylistic equivalences. Progressing from the idea that translation is neither just an neutral act or an instance nor product, but a complex activity during which the translator transmits cultural and ideological messages, we seek to argue in this paper that the production of Setswana bible by Moffat is an exemplar of a product caught up in aforementioned seductions of translating. With an understanding that memory is an important tool and force in the accomplishment of translations of texts, we draw on decolonial turn to analyse letters found in Words of Batswana: Letters to Mahoko a Becwana 1883â€“1896 as a primary source to show how through translating, the linguistic heritage of Batswana was desecrated. In addition, we illustrate how Moffat as a primary beneficiary and supporter of the institution of imperialism and its systemic violence, renders Batswana invisible in the creation[1] of the bible and displaces them as legitimate bearers of their own historical and cultural memory.[1] We use the term deliberately to underpin the fact that through translation, Moffat was in fact trying to preserve the English language and the memory representative of this language by disqualifying anything in Setswana and about Batswana that contested the protocols of foreign memory and power. As such, translation as performed by Moffat served to (re)create a new memory which subverts common communal memory and mores of Batswana.
Project Partnering in the Construction Industry: Theory vs. Practice
Authors: Ali Hosseini  , Paulos Windimu  , Ole Jonny Klakegg  , Bjørn Andersen  , Ola Laedre
Published: May 2019

Clarification of what partnering is and its practical implications may help the construction industry to achieve the full benefits of this concept. The purpose of this study is to shed more light on how the partnering concept as practiced in real-life projects compares with the way partnering is described in the literature by exploring the hard (formal/contractual) elements of this concept. By this, we aim to identify discrepancies between theory and practice and help clear up the confusion that results from conflicting definitions of partnering. This investigation is based on a literature study and 39 interviews with respondents from 44 construction projects classified as partnering projects. Findings reveal that the discrepancies between theory and practice are remarkable: either the practitioners have misunderstood what partnering entails or the minimum requirements are too stringent and do not reflect the real-life use of the concept. Observation from case projects shows that no partnering hard element is applied in all studied projects. Partnering projects may share the partnering label,but use different sets of hard elements. Partnering can be identified as being present through a range of features, characteristics and interaction behaviors. This concept should be studied as an enacting strategy that can be adopted by various contract models rather than simply as an alternative contract form.
Analyzing The Dynamics of Social Networks by Combining Psychometric Measures with Social Network Analysis
Authors: Paul S. Chinowsky  , Barbara Robinson  , Sherman Robinson
Published: May 2019

An effective social network is built on “social relationships,” fostered by increasing “reliance” on another person to complete tasks (within required parameters) because he or she has delivered reliably in the past; and “trust”— an emotional, interpersonal connection that grows out of reliance, based on testing/consulting with another individual over time. “Reliance” and “trust” foster high levels of “collaboration,” an essential ingredient for creating high performing teams. Developing teams that have trust among the participants is important as the teams engage in information transfer, knowledge exchange, and finally knowledge sharing, leading to full “social network engagement.” In this paper, we combine the Social Network Analysis which describes the “mechanics” of a social network in an engineering/architecture firm with data, gathered using a psychometric instrument, The Birkman Method, to quantify the behavioral and personality characteristics of individuals in that firm—the dynamics” that drive the mechanics. Our focus is on identifying and measuring specific characteristics that engender reliance, trust, and collaboration. We find that the quantitative measures of behavioral and personality characteristics help explain the interactions of highly networked individuals in a social network, or, conversely, of individuals who have low levels of network engagement.
Towards a deeper understanding of how champions influence the allocation of resources to innovation projects
Authors: Maarten E.J. Rutten  , Andre G. Doree  , Johannes I.M. Halman
Published: May 2019

Previous research indicates that the presence of a champion in an innovation project increases the likelihood that firms will allocate resources to the innovation project. Relatively little is, however, known about how champions’ presence exactly influences resource allocation. A case study of two innovation projects in the construction industry was conducted to further explore this question. The findings suggest that it is not so much champions’ presence as such, but one of champions’ prototypical behaviours that influences firms’ willingness to allocate resources. Here we refer to champions’ expression of enthusiasm and confidence about the success of an innovation. Further, the findings suggests that the effect might be explained by the mediating role of firms’ expectations of the rate of adoption. Overall, the case study provides a step towards a deeper understanding of how champions induce firms to allocate resources to innovation projects.
Pré-textuais
Authors: - Revista Trilhas Filosóficas Os Editores
Published: May 2019

Pré-textuais
Corpo-Próprio: caminho filosófico de Merleau-Ponty
Authors: Souza Klédson Tiago Alves de , Souza José Francisco das Chagas
Published: May 2019

Este artigo busca discutir os conceitos de Corpo-próprio e Corpo-Sujeito dentro do contexto filosófico de Maurice Merleau-Ponty. Desta forma, a discussão está voltada para se ver o homem como unidade em que não há separação entre o seu corpo (máquina) de sua razão. O objetivo é mostrar que em Merleau-Ponty o corpo-sujeito é este que está posto na realidade e que tem a capacidade de experienciar a si mesmo e o mundo. O mundo é isso que é, as coisas são o que aparecem ao homem, porém, ele tem a capacidade de experienciar e de ver sempre de uma perspectiva nova.
Apresentação
Authors: Cirino (Organizadora) Maria Reilta Dantas
Published: May 2019

Apresentação
Experiências de pensamento em filosofia com crianças
Authors: Cirino Maria Reilta Dantas
Published: May 2019

Experiências de pensamento em filosofia com crianças [Experiences of thinking of philosophy with children]
On typology of the new economy
Authors: Ogorodnikov P. I. , Tasmaganbetov A. B. , Tyapukhin A. P.
Published: May 2019

Currently, a significant number of definitions of terms of different types of economy, including the term «new economy», has been developed, and the content of these definitions is often duplicated or not specific. Vertical and horizontal interrelations of these terms are not often expressed clearly, which reduces the quality of scientific researches in the field of economics and management. The subject of the study is the typology of the term “new economy” and related terms. The purpose of the study is clarification and addition of the typology of the term “new economy” and related terms, as well as to develop their adequate definitions. The hypothesis of the study is based on the fact, that the definitions of the studied terms include duplicate components and classification features or do not contain the necessary components and classification features. Therefore, these definitions can be refined and supplemented on the basis of terminological analysis. Logical-structural methods have been chosen as research methods: terminological analysis, grouping, typology and classification. The major components and classification features of definitions of different types of the economics have been revealed and grouped in the article. Classification features and their combinations have been substantiated. Options for the classifications of different types of economics have been developed and their structure has been justified. The basic and refined definitions of different types of economics have been proposed. The scientific contribution has been provided by the correct choice and use of the empirical base, application of adequate research methods, the substantiation of the author’s typology of terms of different types of economics, allowing to obtain their unambiguous definitions.The results of the study allow to adjust a number of provisions of the economics theory, ensuring the improvement of its terminological apparatus and structure.
Methodology of a marketing research of Internet users
Authors: Alexandrova I. Yu.
Published: May 2019

Strengthening of a trend of development in Russia of internet marketing and, as a result, increase of relevance of carrying out highly professional marketing researches in the web environment has been considered. The article is aimed at identification of methodological specifics of a marketing research of Internet users, development of its concept. The stated goal is achieved by means of the solution of the following tasks: the analysis and systematization of the goals of the marketing research of the Internet users; identification and systematization of the empirical indicators, which are necessary for the research of the Internet users; the analysis and systematization of methods, techniques, the technician and procedures of a research of empirical indicators, including, special services, corresponding to methods of collecting primary empirical data in the web environment. The analysis of such methods of the marketing empirical research of the Internet users as a usability testing, an online experiment, a game experiment, a usability experiment, online questioning, online interviewing, including an individual deep online interview, a group deep online interview (online focus group), the content analysis of web messages of consumers, the analysis of traces, including analysis of site statistics, has been presented. Meanwhile, the attention is focused on observance of the necessity of full subordination of each of the presented techniques to the methodological principles of the corresponding basic method, which derivative it is, because violation of the specified requirement leads to inevitable vulgarization of scientific methodology of carrying out an empirical research and obtaining incorrect data. From the point of view of the author, an application by the marketing analyst of the concept of a research and research tools, presented in the article, in the course of the organization and carrying out market researches of the Internet users allows to obtain information, necessary for creation of effective marketing web communication and also to find and in due time to prevent potential and real communicative failures.
Parameters of development and regulation of the international digital trade at the present stage
Authors: Smirnov E. N.
Published: May 2019

The main aspects of development of the international digital trade in modern conditions have been analysed and systematized in the article. Under the influence of new digital technologies more and more companies are involved in international trade, and economic activity within global value chains becomes more and more operated. Impact of digital transformation on the international exchange in the conditions of digital globalization has been estimated. At a new stage of economic globalization development of digital trade becomes an alternative to delay of traditional exchange. The international approaches to classification and measurement of objects of digital trade have been generalized. It has been shown, that cross-border electronic commerce becomes more active, but not less intensively international trade in services on the basis of information and communication technologies also develops. The main challenges, facing multilateral and national regulation of electronic commerce and digital trade in goods and services, have been revealed. It has been established, that ensuring openness of the markets remains one of the major barriers to effective development of cross-border digital trade. The conclusion has also been drawn, that digitalization will lead in the long term to decrease in cost of international trade, and in these conditions, a significant role will be played by small and medium-sized enterprises, actively integrated into global digital platforms. In this regard, countries need to create adequate mechanisms of regulation of foreign trade in digital goods and services. Creation of an effective system of multilateral regulation of the international exchange in the conditions of digitalization is also significant. The main tools of this system should be protection of investments of the companies and creation of an effective system of settlement of investment and trade disputes, but not regulation of rules of access to the market.
A Physical Organic Approach to Tuning Reagents for Selective and Stable Methionine Bioconjugation
Authors: Christian Alec , Jia Shang , Zhang Patricia , Meza Arismel Tena , Sigman Matthew S. , Chang Christopher , Toste F. Dean
Published: May 2019

We report a data-driven, physical organic approach to the development of new methionine-selective bioconjugation reagents with tunable adduct stabilities. Statistical modeling of structural features described by intrinsic physical organic parameters was applied to the development of a predictive model and to gain insight into features driving stability of adducts formed from the chemoselective coupling of oxaziridine and methionine thioether partners through Redox Activated Chemical Tagging (ReACT). From these analyses, a correlation between sulfimide stabilities and sulfimide  (C=O) stretching frequencies was revealed. We ex-ploited the rational gains in adduct stability exposed by this analysis to achieve the design and synthesis of a bis-oxaziridine reagent for peptide stapling. Indeed, we observed that a macrocyclic peptide formed by ReACT stapling at methionine exhibited improved uptake into live cells compared to an unstapled congener, highlighting the potential utility of this unique chemical tool for thioether modification. This work provides a template for the broader use of data-driven approaches to bioconjugation chemistry and other chemical biology applications.
Bimetallic Radical Redox-Relay Catalysis for the Isomerization of Epoxides to Allylic Alcohols
Authors: Ye Ke-Yin , McCallum Terry , Lin Song
Published: May 2019

Organic radicals are generally short-lived intermediates with exceptionally high reactivity. Strategically, achieving synthetically useful transformations mediated by organic radicals requires both efficient initiation and selective termination events. Here, we report a new catalytic strategy, namely bimetallic radical redox-relay, in the regio- and stereoselective rearrangement of epoxides to allylic alcohols. This approach exploits the rich redox chemistry of Ti and Co complexes and merges reductive epoxide ring opening (initiation) with hydrogen atom transfer (termination). Critically, upon effecting key bond-forming and -breaking events, Ti and Co catalysts undergo proton-transfer/electron-transfer with one another to achieve turnover, thus constituting a truly synergistic dual catalytic system.
Balloon pulmonary angioplasty for patients with inoperable chronic thromboembolic pulmonary hypertension
Authors: Danilov N M , Matchin Yu G , Chernyavsky A M , Edemsky A G , Grankin D S , Sagaydak O V , Chazova I E , Boytsov S A , Karaskov A M
Published: May 2019

Aim. To evaluate the effectiveness of balloon pulmonary angioplasty (BPA) in patients with inoperable chronic thromboembolic pulmonary hypertension (CTEPH). Materials and methods. Forty patients with inoperable CTEPH were enrolled in this study. The indications were determined by multidisciplinary team. The average age of patients was 53.5 [43; 63] years. In 65% of cases patients had functional class III (according to WHO); the distance in the 6-minute walk test (6MWD) was 327 [280; 400] m; catheterization of the right heart revealed systolic pulmonary artery pressure (SPAP) 82 [64; 100] mm Hg, mean pulmonary artery (mPAP) 48.5 [38; 56] mm Hg, pulmonary vascular resistance (PVR) 784 [525; 1257] dyn·s/cm-5. Each patient underwent 6 BPA. Results and discussion. The effectiveness of BPA was assessed 2 months after the last session. According to the data of right heart catheterization SPAP decreased by 27.3%, mPAP by 26%, PVR by 34.5% from baseline. After all series of BPA echocardiography and magnetic resonance imaging demonstrated reverse remodeling of the right heart. Also significant decrease in the level of BNP by 62%, increasing in 6MWD distance by 39% and improvement of the functional class up to I in 60% cases and up to II in 40% cases were noted. Conclusion. The results of the present study demonstrated a high efficacy of BPA allowing to normalize hemodynamic and clinical parameters, increasing the physical activity. Balloon pulmonary angioplasty is a new highly effective, safe method for treating patients with inoperable CTEPH.
Early diagnosis of acute renal injury in patients with acute decompensation of chronic heart failure
Authors: Nasonova S N , Zhirov I V , Ledyakhova M V , Sharf T V , Bosykh E G , Masenko V P , Tereshchenko S N
Published: May 2019

Early diagnosis of acute kidney injury (AKI) is an urgent problem of providing medical care to patients with acute decompensation of chronic heart failure (ADHF). Aim. To study the possibilities of previously diagnosing acute renal damage in patients with acute decompensation of chronic heart failure with reduced systolic function using biomarkers of acute renal injury. Materials and methods. The study included 60 patients (62.0±11.1 years) with HADS (BNP >500 pg/ml) and a reduced left ventricular ejection fraction (LV 27.05% [23.25; 32.75], c FC III-IV NYHA). The level of creatinine, urea, uric acid, albumin in serum was determined in all patients, as well as a number of biomarkers: lipocalin associated with neutrophil gelatinase (NGAL) and cystatin C (CysC) in serum; kidney damage molecule-1 (KIM-1) and angiotensinogen (AGT) in the urine. Results and discussion. AKI is determined based on changes in serum creatinine concentration or diuresis value. The results obtained indicate a high specificity and sensitivity of the use of biomarkers for the diagnosis of AKI in patients with ADHF. NGAL AUC - 0.833 (p
O.V. Knyazev, A.V. Kagramanova, I.A. Korneeva, K.K. Noskova, S.V. Belousov, A.I. Parfenov
Authors: Knyazev O V , Kagramanova A V , Korneeva I A , Noskova K K , Belousov S V , Parfenov A I
Published: May 2019

Aim. To compare fecal calprotectin (FC) concentration with laboratory and diagnostic methods in patients with inflammatory bowel diseases (IBD). Materials and methods. The level of FC was measured in 110 patients with established IBD. Crohn diseases (CD) was diagnosed in 50 patients, ileocolitis - in 38 and terminal ileitis in 12 individuals. Ulcerative colitis (UC) was diagnosed in 60 patients, total colitis in 35, left-side colitis in 21 and 4 patients have proctitis. Laboratory data include measurement of FC, leukocytes, erythrocyte sedimentation rate (ESR), C reactive protein (CRP), fecal occult blood. All patients underwent colonoileoscopy (CIS) at the start of disease flare and after 12 weeks of treatment. Results and discussion. We found linear correlation between level of FCP and endoscopic activity of CD, analyzing FCP level and endoscopic activity of CD before (during disease flare) and after 12 weeks treatment (r=0.66, p
The hypoxia-response pathway modulates RAS/MAPK–mediated cell fate decisions inCaenorhabditis elegans
Authors: Maxeiner Sabrina , Grolleman Judith , Schmid Tobias , Kammenga Jan , Hajnal Alex
Published: May 2019

Animals need to adjust many cellular functions to oxygen availability to adapt to changing environmental conditions. We have used the nematodeCaenorhabditis elegansas a model to investigate how variations in oxygen concentrations affect cell fate specification during development. Here, we show that several processes controlled by the conserved RTK/RAS/MAPK pathway are sensitive to changes in the atmospheric oxygen concentration. In the vulval precursor cells (VPCs), the hypoxia-inducible factor HIF-1 activates the expression of the nuclear hormone receptor NHR-57 to counteract RAS/MAPK–induced differentiation. Furthermore, cross-talk between the NOTCH and hypoxia-response pathways modulates the capability of the VPCs to respond to RAS/MAPK signaling. Lateral NOTCH signaling positively regulates the prolyl hydroxylase EGL-9, which promotes HIF-1 degradation in uncommitted VPCs and permits RAS/MAPK–induced differentiation. By inducing DELTA family NOTCH ligands, RAS/MAPK signaling creates a positive feedback loop that represses HIF-1 and NHR-57 expression in the proximal VPCs and keeps them capable of differentiating. This regulatory network formed by the NOTCH, hypoxia, and RAS/MAPK pathways may allow the animals to adapt developmental processes to variations in oxygen concentration.
TRANSLATION OF IDIOMS:
Authors: Silva Janailton Mick Vitor da , Branco Sinara De Oliveira
Published: May 2019

This study investigates how six idioms from the TV Series Bates Motel, Season 01, Episode 06 (BMS01E06) are translated from English into Brazilian Portuguese (BP) in the official subtitles following one of Baker’s (1992) idioms translation suggestions: paraphrase. Specifically, it analyzes the meaning of such idioms in the English context compared to their meaning rendered in the BP context. The results point out that: i) the idioms may highlight the inexistence of English-Portuguese one-to-one idioms; ii) the figurativeness of the English idioms is found in different lexical items in BP paraphrases; iii) the subtitling technical constraints of time, space and presentation have been fulfilled in all cases analyzed. The conclusion reached is that culture-specific idioms can be translated in a particular context and subtitling translation may link different peoples and cultures.
Thrombolysis for Trauma-Associated Inferior Vena Caval Thrombosis can be Safe in Selected Patients: A Case Report and Review of the Literature
Authors: Swain Cara S , Macanovic Mladen , Faulconer Edwin R
Published: May 2019

Traumatic injury results in significant physiological changes that place patients at elevated risk for venous thromboembolism (VTE). Percutaneous catheter-directed thrombolysis has been recommended as a first-line therapy for treatment of VTE but is relatively contraindicated in trauma cases due to increased risk of bleeding. The authors present a case to support the opinion that thrombolysis for trauma-associated inferior vena caval thrombosis can be safe in selected patients, with discussion of existing literature.
Sistem Komunikasi Suara Bawah Air dengan Metoda Simplex menggunakan Visible Light Communication (VLC)
Authors: JAMBOLA LUCIA , DARLIS ARSYAD RAMADHAN , LIDYAWATI LITA , HUSAENI DZIKRI FACHRI
Published: May 2019

ABSTRAKSistem komunikasi suara bawah air telah dikenal sejak lama, diantaranya sonar dan akustik. Seiring perkembangan zaman dan kemajuan teknologi, kini hadir komunikasi dengan media transmisi cahaya tampak yaitu Visible Light Communication (VLC) yang dapat diterapkan pada komunikasi bawah air. Pada penelitian ini telah dilakukan komunikasi suara bawah air (simplex) menggunakan VLC, dengan media akuarium berisi air dan beberapa pengujian diantaranya menggunakan color filter, didapat hasil pengujian terbaik yaitu tegangan 4,4 Vpp dan frekuensi 3,003 kHz untuk color filter yellow, pengujian menggunakan lensa didapat hasil pengujian terbaik yaitu tegangan 4,4 Vp-p dan frekuensi 3,051 kHz untuk lensa (+50), dan pengujian terakhir menggunakan lampu UV didapat hasil pengujian terbaik dengan tegangan 4,4 Vp-p dan frekuensi 3,010 kHz. Implementasi sistem VLC ini menunjukkan hasil yang baik dan layak untuk diterapkan pada komunikasi suara bawah air (simplex).Kata kunci: VLC, Komunikasi Suara Bawah Air, Simplex. ABSTRACTUnderwater voice communication systems have been known for a long time, including sonar and acoustics. Along with the development and advancement of technology, now there is communication with visible light transmission media, namely Visible Light Communication (VLC) which can be applied to underwater communication. Under this study underwater voice communication (simplex) has been carried out using VLC, with aquarium media containing water and several tests including using a color filter, the best test results obtained are voltage 4.4 Vp-p and frequency 3.003 kHz for yellow color filter, testing using the lens obtained the best test results namely voltage 4.4 Vp-p and frequency 3.051 kHz for lenses (+50), and the last test using UV lights obtained the best test results with a voltage of 4.4 Vp-p and a frequency of 3.010 kHz. The implementation of the VLC system shows good and feasible results to be applied to underwater voice communication (simplex).Keywords: VLC, Underwater Voice Communication, Simplex.
Kompresi Sinyal EKG menggunakan Teknik Parameter Extraction
Authors: ALIWARGA CINTHIA , PRAMUDITA ALOYSIUS ADYA , KARTAWIDJAJA MARIA ANGELA
Published: May 2019

ABSTRAKSistem healthcare IoT menyebabkan peningkatan trafik komunikasi dan jumlah penyimpanan data. Elektrokardiogram (EKG) adalah salah satu alat yang berperan penting dalam healthcare IoT. Pasien yang mengalami kelainan jantung perlu dipantau oleh EKG dalam periode waktu lama sehingga menghasilkan data dalam jumlah yang sangat besar. Kompresi data mampu menjadi solusi masalah di atas. Penelitian ini melakukan kompresi sinyal EKG menggunakan metode parameter extraction untuk satu siklus sinyal dari dua belas pasien yang dipilih secara acak. Hasil penelitian menunjukkan bahwa kinerja kompresi baik, ditunjukkan oleh nilai Compression Ratio (CR) 6,24 dan Mean Square Error (MSE) 0,0018.Kata kunci: IoT, EKG, kompresi data, parameter ekstraction. ABSTRACTHealthcare IoT causing higher data communication traffic and storage. Electrocardiogram (ECG) is one of the important device in healthcare IoT. Patient whose have heart abnormality needs ECG monitoring for long period of time, this causing a big data size. Data compression become one of the solutions for this problem. This research focused on data compression using parameter extraction method for one cycle ECG signal from twelve patients.This research has a good result with Compression Ratio (CR) 6,24 and Mean Square Error (MSE) 0,0018.Keywords: IoT, ECG, data compression, parameter extraction
Perancangan Kendali Optimal pada Motor Arus Searah Tanpa Sikat melalui Metode LQRI
Authors: FATHONI KHOIRUDIN , UTOMO ARYO BASKORO
Published: May 2019

ABSTRAKArtikel ini akan menjelaskan perancangan kendali kecepatan MASTS  dengan tujuan diperoleh respon kecepatan MASTS yang tanggap serta memiliki sinyal kendali dan arus minimal. Untuk mencapai hal ini MASTS akan dikendalikan melalui metode Linear Quadratic Regulator (LQR) dengan state yang dipilih adalah arus, kecepatan, dan state integral galat kecepatan. Diperlukan penalaan nilai parameter Q matriks bobot state dan R matriks bobot input untuk mendapatkan performa kecepatan dan arus yang terbaik. Berdasarkan pengujian diperoleh bahwa dengan kendali LQR-I, kecepatan MASTS dapat mengikuti set point dengan respon rise time Tr = 0,03 detik, settling time Ts=0,044 detik, overshoot (OS) 1,6 %, arus Imax=0,16 A dan dutycycle sinyal kontrol umax 56% pada kondisi tanpa beban dan Tr = 0,03 detik, Ts=0,044 detik, OS 1,6 %, Imax=0,16 A dan umax 56% pada kondisi berbeban. Dibandingkan dengan kendali PID ketika tanpa beban mempunyai Tr=0,0176 Ts=0,075 %OS=3,9% umax=96% Imax=0,35 A, LQRI mempunyai respon settling time, sinyal kendali dan arus yang lebih baik.Kata kunci: Motor Arus Searah Tanpa Sikat, Kendali Optimal, Linear  Quadratic Regulator dan Integral ABSTRACTThis paper aimed to discuss further research about BLDC motor speed control so that BLDC not only has fast speed response but also has minimum control signal and current using LQR (Linear Quadratic Regulator) control with chosen states are current, speed of BLDC, and speed error integral state. Tuning of Q and R matrix is required to reach the best speed and current performance. Where Q and R matrix is state cost matrix and input cost matrix, respectively. Result show that LQR-I control can track set point with rise time Tr = 0.03 s, settling time Ts=0,044 s, overshoot (OS) 1,6 %, current Imax=0,16 A and dutycycle control signal umax 56% in no load condition, and Tr = 0,03 s, Ts=0,044 s, OS 1,6 %, Imax=0,16 A dan umax 56% in the load condition. Compared to PID controller which has Tr=0,0176 Ts=0,075 %OS=3,9% umax=96% Imax=0,35 A in no load condition, proposed controller has a better settling time, control signal and current.Keywords: BLDC Motor, Optimal Control, LQR and Integral
PERBANDINGAN KADAR PROTEIN TELUR PADA TELUR AYAM DENGAN METODE SPEKTROFOTOMETRI VIS
Authors: Ramadhani Nurfijrin , Herlina Herlina , Pratiwi Anjani Chintya
Published: May 2019

Abstrak

 Protein yang terdapat dalam makanan hewani seperti telur dikatakan sebagai protein sempurna. Telur terbagi atas bagian kuning dan putih yang mempunyai nilai protein yang berbeda. Tujuan penelitian ini adalah untuk mengetahui perbedaan kadar protein putih dan kuning telur dari 2 jenis telur ayam. Pada penelitian ini teknik pengambilan sampel menggunakan metode purposive sampling, dimana pengambilan sampel sesuai dengan persyaratan, yaitu 2 jenis telur ayam, telur ayam ras dan telur ayam kampung dengan karakteristik tidak busuk, kulit telur tanpa bercak, kulit telur berwarna coklat/putih bersih, mutu kesegaran telur penyimpanan kurang dari 1 minggu. Metode penelitian yang dilakukan yaitu analisis kualitatif protein menggunakan metode pereaksi warna biuret, sedangkan analisis kuantitatif menggunakan spektrofotometri sinar tampak. Hasil penelitian menunjukkan bahwa kadar protein pada putih telur ayam ras memiliki kadar terendah 863,3 mg/mL dan pada kuning telur ayam kampung memiliki kadar protein tertinggi 1.229,5 mg/mL, dan kadar protein putih telur ayam kampung 945,07 mg/mL, kuning telur ayam ras 930,9 mg/mL.

Kata Kunci :  Protein, Telur AyamRas, Telur Ayam Kampung, Biuret, SpektrofotometriVis

 

Comparison of protein level in eggs using spectrophotometry

 

Abstract

 
Proteins contained in animal foods such as eggs are said to be perfect proteins. Eggs are divided into yellow and white parts that have different protein values. The purpose of this study was to determine the differences in levels of white and egg yolk protein from 2 types of chicken eggs. In this study the sampling technique used a purposive sampling method, where sampling was in accordance with the requirements, namely 2 types of chicken eggs, chicken eggs and native chicken eggs with characteristics not rot, eggshells without blotches, brown / white egg shells, quality egg storage freshness less than 1 week. The research method used was qualitative analysis of proteins using the biuret color reagent method, while quantitative analysis using visible spectrophotometry. The results showed that protein content in race chicken egg whites had the lowest levels of 863.3 mg/mL and in chicken egg yolks had the highest protein content of 1229.5 mg/mL, and the protein content of free-range egg white chicken 945.07 mg/mL, race chicken egg yolk 930.9 mg/mLKeywords: Protein, Ras-Chicken Egg, Village Chicken Egg, Biuret, Vis Spectrophotometry
Кристаллические структуры и характеристики поверхности Хиршфельда β-иминокетонатных производных Сo(II)
Authors: Доровских С.И. , Пирязев Д.А. , Стабников П.А. , Морозова Н.Б.
Published: May 2019

По реакции взаимодействия CoCl2 с натриевой солью соответствующего β-имино­кетонатного лиганда (L1 = R1C(O)CHC(NR)CR2 или L2 = = MeC(O)CHC(Me)(NCH2C(Me)2CH2N)C(Me)CHC(O)Me) в метаноле получен ряд β-иминокетонатных производных Co с общей формулой Co(L1)2, (L1 = i-acac (R = H, R1 = R2 = Me) — (1), Mei-acac (R = R1 = R2 = Me) — (2), i-thd (R = H, R1 = R2 = tBu) — (3), Mei-thd (R = Me, R1 = R2 = tBu) — (4)) и Co(L2) (L2 = dmpda(acac)2 — (5). Комплексы 1—5 охарактеризованы методами элементного, рентгеноструктурного анализа и ИК спектроскопии. Параметры кристаллографической ячейки при 293 K следующие: 2 — пр. гр. Сс, a = 13.7304(9) Å, b = 5.5516(4) Å, с = 18.4034(12) Å, β = 101.964(2)°, V = 1372.34(16) Å3, Z = 4; 3 — пр. гр. P21/n, a = 9.953(2) Å, b = 12.074(3) Å, с = 11.161(2) Å, β = 109.924(8)°, V = 1260.9(5) Å3, Z = 2; 4 — пр. гр. P-1, a = 11.7982(7) Å, b = 13.1673(9) Å, с = 17.6159(10) Å, α = 71.493(2)°, β = 83.478(2)°, γ = 72.829(2)°, V = 2478.7(3) Å3, Z = 4 и 5 — пр. гр. Pbca, a = 7.8635(2) Å, b = 14.0521(4) Å, с = 29.8715(9) Å, V = 3300.76(16) Å3, Z = 8. При исследовании поверхностей Хиршфельда в молекулах 2 и 5 обнаружены по две пары укороченных контактов. Методом термогравиметрии показано, что в ряду изучаемых комплексов 1 и 2 наиболее летучие.
Изоструктурность и термические свойства в ряду двойных комплексных солей состава [M1(NH3)6][M2(C2O4)3]⋅3H2O (M1 = Co, Ir, M2 = Fe, Cr)
Authors: Юсенко К.В. , Печенюк С.И. , Викулова Е.С. , Семушина Ю.П. , Байдина И.А. , Филатов Е.Ю.
Published: May 2019

Синтезирован ряд из четырех изоструктурных двойных комплексных солей, построенных на основе катионов [M1(NH3)6]3+ и анионов [M2(C2O4)3]3–, где M1 = Co, Ir, M2 = Fe, Cr. Соли кристаллизуются в гексагональной пространственной группе симметрии P-3c1. Согласно данным термического анализа, в атмосфере аргона термическая устойчивость (температура начала разложения обезвоженных продуктов) изучаемых соединений зависит от природы комплексного трис-оксалатного аниона и увеличивается в ряду [M1(NH3)6][Co(C2O4)3] < < [M1(NH3)6][Fe(C2O4)3] < [M1(NH3)6][Cr(C2O4)3] < [M1(NH3)6] [Ir(C2O4)3] (M1 = Co, Ir). При этом при одинаковом анионе соли гексамминаиридия(III) более устойчивы по сравнению с солями кобальта(III). При термическом разложении солей [Co(NH3)6][Fe(C2O4)3]⋅3H2O и [Ir(NH3)6][Fe(C2O4)3]⋅3H2O в атмосфере водорода образуются твердые растворы Co0.5Fe0.5 и Ir0.5Fe0.5 соответственно.
Synthesis, crystal structure, DNA binding, and cytotoxicity of a Zn(II) complex constructed from phenylacetic acid
Authors: Gao X.N. , Gao E.J. , Zhu M.C.
Published: May 2019

A novel Zn(II) complex with the formula {[ZnL2(dibe)2]⋅2H2O}n (synthesized using a carbo­xylic acid ligand, L = phenylacetic acid, dibe = 4,4'-bipyridine (bipy)) is synthesized at room temperature, characterized and its DNA binding, cleavage, anticancer properties are studied by elemental analysis, infrared spectroscopy, and single crystal X-ray diffraction. The interaction of the complex with fish sperm DNA (FS-DNA) is monitored, which reveals that the complex has the ability to bind to FS-DNA. The complex is further studied for the gel electrophoresis assay with supercoiled plasmid pBR322 DNA. In addition, anticancer activities of the metal complex investigated through MTT in vitro assays, indicate that the complex shows good cytotoxic activity against cancer cell lines. Flow cytometry and apoptosis experiments show that the complex induces apoptosis of HeLa cells, which demonstrates that the complex exhibits a significant cancer cell inhibitory rate.
PEMETAAN MULTI RISIKO BENCANA PADA KAWASAN STRATEGIS DI KABUPATEN TANGGAMUS
Authors: Tiwi Dwi Abad
Published: May 2019

ABSTRAKKawasan strategis adalah kawasan yang diprioritaskan pembangunannya dalam rangka mempercepat pembangunan suatu wilayah. Kabupaten Tanggamus di Provinsi Lampung memiliki beberapa kawasan strategis yang direncanakan baik oleh pemerintah provinsi maupun pemerintah Kabupaten Tanggamus, yang akan diprioritaskan pembangunannya dengan investasi yang sangat besar. Kabupaten Tanggamus juga berada pada kawasan yang rentan terhadap bencana antara lain gempabumi, tsunami, banjir, dan longsor. Keberadaan kawasan strategis dengan paparan multi bencana tersebut memerlukan kajian dan pemetaan risiko multi bencana, sehingga akan diketahui luasan dan lokasi kawasan strategis disertai dengan tingkat risiko multi bencana yang dihadapi.
PENILAIAN KERENTANAN LAHAN SAWAH PADI TERHADAP BANJIR DAS CIDURIAN DI DESA RENGED, KECAMATAN BINUANG, SERANG, BANTEN
Authors: Dahlia Siti
Published: May 2019

ABSTRAKDesa Renged Kecamatan Binuang Kabupaten Serang Provinsi Banten, merupakan daerah yang kondisi ekonominya sebagian besar dipengaruhi oleh sektor pertanian yaitu padi sawah. Peristiwa banjir besar dalam 21 tahun terakhir terjadi pada tahun 1994, 2001, dan 2013, yang mengakibatkan gagal panen bagi petani. Tujuan penelitian ini yaitu: (1) menganalisis bahaya banjir daerah penelitian berdasarkan data kejadian banjir tahun 1994, 2001, dan 2013, dan (2) menilai tingkat kerentanan lahan sawah padi terhadap bahaya banjir. Penelitian ini dianalisis secara kualitatif dan kuantitatif, dengan menggunakan pendekatan bentuklahan dan persepsi masyarakat. Metode analisis data yang digunakan yaitu metode interpolasi, skoring, dan skenario pembobotan. Hasil penelitian menunjukkan bahwa sebagian besar wilayah penelitian berada pada kelas bahaya banjir sedang. Bahaya banjir kelas tinggi wilayah penelitian terdapat pada satuan bentuklahan dataran banjir, aliran sungai mati, dan dataran aluvial yang berasosiasi dengan saluran irigasi. Hasil penilaian kerentanan menunjukkan bahwa nilai indeks kerentanan lahan sawah padi tertinggi terdapat pada skenario pembobotan seimbang (equal) dengan nilai indeks 0-0,89. Nilai indeks kerentanan lahan sawah padi terendah pada skenario fase tanaman dengan nilai indeks 0-0,77. Tingkat kerentanan tertinggi terdapat pada lahan sawah yang berlokasi di satuan bentuklahan: dataran banjir dan dataran aluvial. Kata kunci: Penilaian Kerentanan, Bahaya Banjir, DAS Cidurian, Lahan Sawah Padi, Bentuklahan, Persepsi.
UJI PROFISIENSI ANTAR LABORATORIUM UJI TARIK BAJA TULANGAN SIRIP
Authors: Hermawan Agus Suhartono  , Eka Febriyanti
Published: May 2019

KarakteristikÂ  paling mendasar untuk desain struktur mekanik adalah kekuatan tarik. Perkembangan teknologi mengarah pada konstruksi yang ringan tetapi dapat diandalkan, [1,2] sehingga keakuratan pengukuran merupakan suatu hal yang sangat diperlukan. Uji profisiensi antar laboratorium menjamin keamanan dan kehandalan hasil uji. Laboratorium wajib memverifikasi prosedur pengujian dan kapasitasnyaÂ  untuk mendapatkan hasil uji yang dapat diandalkan. Dalam penelitian ini, benda uji adalah baja tulangan sirip dengan dimensi yang berbeda. Benda uji yang dipilih secara acak memiliki dimensi tertentu dikirim ke masing-masing laboratorium peserta, kemudian diuji dan hasilnya dianalisis sesuai dengan parameter yang ditetapkan sebelumnya. Setiap laboratorium diterapkan tes tarik pada benda uji sesuai dengan prosedur yang diberikan dalam SNI 2052-2002 dan standar uji tarik yang biasa dipergunakan masing-masing laboratorium. Hasil uji dievaluasi sesuai dengan prosedur yang dijelaskan dalam standar terkait. Hasil yang dikumpulkan dievaluasi sesuai dengan metode statistik Robust kemudian Z-skor dari laboratorium peserta disajikan.
PENGARUH PERLAKUAN PELARUTAN TERHADAP SIFAT MEKANIK DAN STRUKTUR MIKRO PADUAN TERNER Zr-Nb-Mo UNTUK BIOMATERIAL
Authors: Dzikry Syamsul Nur Alam  , Pradoto Ambardi  , Djoko Hadi Prajitno
Published: May 2019

Penelitian dilakukan untuk mempelajari pengaruh perlakuan pelarutan terhadap sifat mekanik dan stuktur mikro paduan terner Zr-Nb-Mo untuk biomaterial. Paduan zirkonium dapat digunakan sebagai bahan implan. Paduan Zr-5Nb-xMo (x= 0, 1, 3 dan 5 %wt) dilakukan perlakuan pelarutan dengan variasi temperatur 900oC, 950oC dan 1000oC dengan pendinginan cepat menggunakan media air. Hasilnya menunjukan bahwa meningkatnya kandungan molibdenum, meningkatkan fasa Î²-Zr dan meningkatnya temperatur perlakuan pelarutan dapat meningkatkan kekerasan paduan zirconium. Hal tersebut terjadi karena unsur molibdenum bertidak sebagai beta stabilizer dan perlakuan pelarutan membentuk perubahan bentuk fasa Î²-Zr dari plate menjadi lath yang lebih halus. Pengujian kekerasan Rockwell C dengan nilai kekerasan tertinggi 53,67 HRC paduan Zr-5Nb-1Mo perlakuan pelarutan 1000oC, fasa yang terbentuk adalah Î±-Zr, Î²-Zr, dan intermetalik Mo2Zr paduan Zr-5Nb-5Mo yang diidentifikasi menggunakan X-Ray Diffraction (XRD).
BINOMIAL LOGIT MODEL UNTUK PEMILIHAN MODA ANTARA PESAWAT UDARA, KERETA API EKSEKUTIF, DAN KERETA API EKSPRES
Authors: Djoko Prijo Utomo  , Mulyadi Sinung Harjono
Published: May 2019

Penelitian ini untuk mengkaji potensi pasar dari rencana pembangunan kereta api ekspres Jakarta â€“ Semarang. Survai stated preference dan model logit binomial digunakan untuk kompetisi antara moda kereta api ekspres dengan pesawat udara maupun kereta api kelas eksekutif yang telah beroperasi. Atribut yang digunakan adalah travel time dan travel cost.Â  Hasil analisa regresi untuk model utility cukup baik dengan indikator R2 sebesar 0,51 untuk penumpang pesawat udara dan 0,56 untuk penumpang kereta api kelas api eksekutif. Hasil temuan menunjukkan bahwa penumpang pesawat udara lebih sensitif terhadap perubahan waktu tempuh dibandingkan penumpang KA eksekutif, dan penumpang pesawat udara juga memiliki kemampuan membeli yang lebih tinggi dibandingkan penumpang KA eksekutif. Jika waktu perjalanan KA ekspres 2,8 jam (kecepatan rata-rata 155,5 km/jam), maka potensi pendapatan terbesar terjadi jika tarif Rp. 360.000,-/penumpang.
Pengaruh Model Pembelajaran Kooperatif Tipe TGT (Team Games Tournament) Berbantuan Media Kartu Mol terhadap Hasil Belajar Kimia
Authors: Sumiati Sumiati , Andayani Yayuk , Al-Idrus Syarifa Wahidah
Published: May 2019

Penelitian ini bertujuan untuk mengetahui pengaruh penerapan model pembelajaran kooperatif tipe TGT (Team Games Tournament) berbantuan media kartu mol terhadap hasil belajar kimia siswa kelas X SMAN 1 Narmada tahun ajaran 2016/2017. Penelitian ini merupakan eksperimen semu dengan desain kelompok kontrol non-ekuivalen. Kelas X MS 1 dan X MS 3 terpilih sebagai sampel penelitian yang diambil dari populasi seluruh kelas X MS SMAN 1 Narmada melalui teknik pengambilan purposive sampling. Variabel bebasnya adalah model pembelajaran TGT (Team Games Tournament) berbantuan media kartu mol untuk kelas eksperimen dan model pembelajaran langsung untuk kelas kontrol, sedangkan variabel terikatnya adalah hasil belajar siswa ranah kognitif. Data hasil belajar diperoleh dengan pemberian tes pilihan ganda di awal pertemuan (pre-test) dan di akhir pertemuan (post-test). Rata-rata hasil pre-test dan post-test pada kelas eksperimen berturut-turut 23,89 dan 52,57 sedangkan pada kelas kontrol 30,93 dan 50,63. Data hasil ini selanjutnya diuji dengan uji anakova sehingga didapatkan Fhitung (1,80) kurang dari Ftabel (4,00) sehingga dapat disimpulkan bahwa penerapan model kooperatif tipe TGT (Team Games Tournament) berbantuan media kartu mol tidak berpengaruh signifikan terhadap hasil belajar kimia siswa kelas X SMAN 1 Narmada tahun ajaran 2016/2017.
Model Pembelajaran Discovery Dengan Pendekatan Konflik Kognitif Berorientasi Pada Kemampuan Berpikir Kritis Peserta Didik
Authors: Lestari P. Ayu Suci , Gunawan Gunawan , Kosim Kosim
Published: May 2019

This study aims to develop an instructional materials by discovery model with a cognitive conflict approach that has a positive impact on students' critical thinking skills, especially on temperature and heat material. The development of this instructional materials adapted the 4D (define, design, develop, and disseminate). Instructional materials developed in the form of syllabus, lesson plans, student worksheet, learning materials, as well as instruments of critical thinking skills in the form of a essay questions. This product was validated by three expert validators and obtained very high validity criteria. The practicality test is done by observing the implementation of learning accompanied by the questionnaire responses of teachers and students, and produces very high practicality criteria. The final value of critical thinking skills students also have high criteria. Therefore, the product developed can be declared valid, practical, and has a positive impact on students' critical thinking skills.
Faktor-Faktor Primimuda Tidak Melakukan ANC di BPS Sri Wardini P.L. Pagerngumbuk – Sidoarjo
Authors: Adiesti Ferilia
Published: May 2019

Kehamilan adalah waktu dari konsepsi sampai janin lahir, dengan lama waktul normal adalah 2780 hari atau 9 bulan 7 hari yang dihitung dari hari pertama haid terakhir. Tujuan penelitian ini adalah untuk mengetahui faktor-faktor yang melatarbelakangi primuda tidak melakukan ANC trimester I BPS Sri wardini Pagerumbuk- Sidoarjo, jenis penelitian ini adalah yaitu menggambarkan faktor-faktor yang melatarbelakangi primuda tidak melakukan ANC trimester I BPS Sri Wardini Pagerngumbuk- Sidoarjo. Pengambilan sampel penelitian menggunakan total populasi sampling sebanyak 20 responden, teknik pengumpulan data melalui pengumpulan data primer dan data sekunder. Hasil penelitian menunjukan ada beberapa faktor yang mempengaruhi primuda tidak melakukan ANCtrimester I BPS Sri Wardini Pagerngumbuk- Sidoarjo seperti ; tingkat pendidikan, pekerjaan pengetahuan dan sikap suami ibu primuda.

Kata kunci: Ante natal care, primuda