bluuebunny/crossref_metadata_2025 huggingface dataset:
Vote Buying in the 2018 Governorship Election in Ekiti State, Nigeria
Authors: Nwankwo Cletus Famous
Published: October 2018

This paper aims to comment on the manifestation of vote buying regarding voter turnout and voter choices in the 2018 Ekiti governorship election in Nigeria and its implications. The article notes that vote-buying might not have significantly influenced voter turnout, but it changed voters’ choices as the two major political parties in the election resorted to a massive monetary inducement for electoral support at the poll. Even though the election was decided by secret balloting, the advent of “see and buy” shows that politicians are stepping up their games to manipulate elections. The paper thus argues for institutional electoral reform and strengthening the enforcement of the law.
What is a rite? Émile Durkheim, a hundred years later
Authors: D’Orsi Lorenzo , Dei Fabio
Published: October 2018

This paper is focused on the anthropological concept of ritual, starting from Emile Durkheim's approach in Les formes élémentaires de la vie religieuse (1912). We discuss three different aspects of the Durkheimian perspective on religion and rituals: a) the sacred/profane dichotomy; b) the concept of collective representations - which establishes a substantial continuity between religious and scientific thought; c) a ‟practical” and performative interpretation of rites as the basis of social bond. During the twentieth century, these aspects have influenced different and sometimes opposing theoretical approaches (including ‟symbolist” and ‟neo-intellectualist” theories and Victor Turner's ‟anthropology of experience”). We briefly review each of them, arguing for the importance of reconsidering them into a unitary perspective, centred on religious phenomena as basically moral experiences and as the language of social relations. In the conclusions, we will show how such unitary approach helps us understand the transformations as well as the continuities of rituality in the individualized and secularized societies of what we call nowadays the Western world.
What Laws? Which Past?: Meillassoux’s Hyper-Chaos and the Epistemological Limitations of Retro-Causation
Authors: Ardoline Michael J.
Published: October 2018

The question of the metaphysical status of the laws of physics has received increased attention in recent years. Perhaps most well-known among this work are David Lewis’s Humean supervenience and Nancy Cartwright’s dispositionalism, both of which reject the classical conception of the laws of physics as necessary and real independent of the objects they govern, arguing instead that what we call laws are shorthand for the regularities of local states of affairs (on Lewis’s account) or the dispositions of objects (on Cartwright’s). The properties of necessity and reality are generally taken to go hand-in-hand when physical laws are concerned; however, this leaves aside the possibility that the laws of physics are independently real (i.e. not just a description of regularities of objects) yet contingent. This paper will explore this third option which is found in the work of Quentin Meillassoux. We will ask: if laws both exist independent of their objects and are contingent, what happens when laws change? Specifically, the possibility of metaphysical retro-causation becomes a live option. This raises both questions of the ontological status of the past as well as our epistemic access to the past after a change in physical laws. Meillassoux’s ontology of hyper-chaos weathers this challenge with its consistency intact; however, it is an open question of whether or not saving the reality of physical laws by sacrificing their necessity is worth the epistemic limits and metaphysical strangeness that it implies.
Intersubjectivity and Multiple Realities in Zarathushtra’s Gathas
Authors: Louchakova-Schwartz Olga
Published: October 2018

The Gathas, a corpus of seventeen poems in Old Avestan composed by the ancient Iranian poet-priest Zarathushtra (Zoroaster) ca. 1200 B.C.E., is the foundation document of Zoroastrian religion. Even though the dualistic axiology of the Gathas has been widely noted, it has proved very difficult to understand the meaning and genre of the corpus or the position of Zarathushtra’s ideas with regard to other religious philosophies. Relying on recent advances in translation and decryptions of Gathic poetry, I shall here develop a philosophical interpretation of the Gathas, including, as shall be discussed here in detail, explication of the revelation he reports in the poem known as Yasna 30. I argue that, similarly to Marx, Henry, and Schutz, Zarathushtra connects social criticism with an original philosophy of (inter)subjectivity and existential reflection, placing his account in the context of a fully developed metaphysics which includes the human-divine sharing of mental properties. I show that in order to accommodate this complicated problematic, Zarathushtra uses the vehicle of multiple realities. Reflecting the spontaneity of life, the dynamics of various ontological modes in the text create a reference to subjectivity. A description of the dream in Yasna 30 is sufficiently within the limits of possibility for a dream experience, and thereby delivers three original phenomenological reductions. The reductions initiate a genetic account of the phenomenalization of invisible impulses which give rise to moral choices, and define the human-divine relationship. The opposing moral choices open into a reverse axiological intentionality in the sphere of intersubjectivity, and are said to plot life for the rightful and lifelessness for the wrongful. It can be concluded that Zarathushtra’s theism and views of the social world are “the first philosophy”, with a unique and original phenomenological ontology of intersubjectivity at its core.
Divine Agency as Literal in Cognitive Linguistic Perspective: Response to “Conceiving God: Literal and Figurative Prompt for a More Tectonic Distinction” by Robert Masson
Authors: Sanders John
Published: October 2018

In “Conceiving God: Literal and Figurative Prompt for a More Tectonic Distinction” Robert Masson criticizes my claim that some concepts of God can be literal in the sense of a non-extended meaning as defined by cognitive linguists. He claims that all of our ideas for God can only be through extended meanings (what is typically called figurative language). He says that blending theory requires this conclusion. In response I make three points. First, I argue that this is not what cognitive linguistics requires. Second, that Masson fails to ever show that “God is an agent” is actually a single scope or double scope blend. Third, I suggest that behind our dispute are different metaphysical commitments regarding divine transcendence. Because I reject his understanding of divine transcendence and he fails to show that divine agency must be understood only in an extended sense, I conclude that religious believers can legitimately claim that some of their ideas of God are literal (non-extended meanings).
Four Ways to Another Religion’s Ultimate
Authors: Hustwit J. R.
Published: October 2018

The prospect of recognizing the ultimate is a matter of interpretation. As such, hermeneutics is used as a framework for describing the interactions of self, language, and the other (whether culturally other or ultimately other). Questioning whether religious ultimacy can be recognized across religious boundaries is based on a mistaken assumption that differences between religions are qualitatively different than differences within a religion. Hermeneutically speaking, intra-communal difference and inter-communal difference are of the same kind. If humans can negotiate the former, they can negotiate the latter. Recognizing ultimacy is an intersubjective act of phronēsis, or practical wisdom. As such, it cannot be explained in any detail apart from the concrete particulars of each encounter. Below is an account of recognizing the Ultimate, analyzed into four explanatory ways: its immediate quality (uncanniness), its vehicle (the classic), its cultural-linguistic mechanism (metaphorical appropriation), and its ontological implications (a signifying cosmos). Each way offers a different type of explanation as to how a person can recognize another religion’s ultimate. I begin with the most concrete: spontaneous feeling, and work my way to more speculative implications.
Learning Robot Speech Models to Predict Speech Acts in HRI
Authors: Arora Ankuj , Fiorino Humbert , Pellier Damien , Pesty Sylvie
Published: October 2018

In order to be acceptable and able to “camouflage” into their physio-social context in the long run, robots need to be not just functional, but autonomously psycho-affective as well. This motivates a long term necessity of introducing behavioral autonomy in robots, so they can autonomously communicate with humans without the need of “wizard” intervention. This paper proposes a technique to learn robot speech models from human-robot dialog exchanges. It views the entire exchange in the Automated Planning (AP) paradigm, representing the dialog sequences (speech acts) in the form of action sequences that modify the state of the world upon execution, gradually propelling the state to a desired goal. We then exploit intra-action and inter-action dependencies, encoding them in the form of constraints. We attempt to satisfy these constraints using aweighted maximum satisfiability model known as MAX-SAT, and convert the solution into a speech model. This model could have many uses, such as planning of fresh dialogs. In this study, the learnt model is used to predict speech acts in the dialog sequences using the sequence labeling (predicting future acts based on previously seen ones) capabilities of the LSTM (Long Short Term Memory) class of recurrent neural networks. Encouraging empirical results demonstrate the utility of this learnt model and its long term potential to facilitate autonomous behavioral planning of robots, an aspect to be explored in future works.
Non-technical users’ first encounters with a robotic telepresence technology: An empirical study of office workers
Authors: Björnfot Patrik , Bergqvist Joakim , Kaptelinin Victor
Published: October 2018

Robotic telepresence technologies are becoming ever more usable and affordable, as well as increasingly available as consumer products. In the coming years, a significant number of people are likely to encounter the technology for the first time, and many, if not most, of them are going to be “non-technical” users, that is, people who do not have special technical knowledge and skills of IT-professionals. Therefore, understanding how nontechnical users are getting familiar with robotic telepresence technology, how they perceive the technology, learn to control it, and relate it to their everyday work practices, is a topical research issue. This paper reports an empirical study, in which eight non-technical users, office workers who were not IT-professionals, were introduced to robotic telepresence and provided with a practical experience of acting as pilots of a remotely controlled robot. In follow up interviews the participants were asked to reflect on potential uses of the technology in their professional activities. The participants could successfully acquire basic navigation skills and reached a high level of spatial presence, but experienced problems with developing a "new body image”. When reflecting on the potential of the technology for supporting their work, the participants envisioned a number of benefits associated with remote physical mobility. The impact of the technology on the quality of workrelated social interactions was expected to be generally positive but somewhat limited.
Impact of glutamine on the effect of neopterin in methyl mercury-exposed neurons
Authors: Engin Ayse Basak , Engin Evren Doruk
Published: October 2018

Exposure to methyl mercury (MeHg), induces blood-brain barrier damage leading to non-selective influx of cytotoxic agents, besides the entrance of inflammatory cells into the brain. However, there is no data available regarding the effects of co-treatment of neopterin and interferon-gamma (IFN-gamma) in MeHgexposed SH-SY5Y dopaminergic neurons. MeHg-exposed SH-SY5Y human neuroblastoma cells were treated with neopterin and IFN-gamma in the presence and absence of L-Glutamine. Cell viability was determined by MTT assay. Oxidative stress intensity coefficient was calculated by taking into consideration the amount of nitric oxide production per viable neuron. 5μM MeHg was found to be more toxic than 1μM or 2μM doses of MeHg for SH-SY5Y cells in glutamine-containing medium. Furthermore, 0.1μM neopterin supplementation significantly increased the neuronal cell viability while, oxidative stress significantly decreased. Glutamine supplementation in culture medium, not only enhanced the MeHg toxicity, but also supported the antioxidant effect of neopterin. These results indicate that neopterin has a protective effect on MeHg toxicity in SH-SY5Y neurons. Neopterin was more effective in improving the total mitochondrial metabolic activity of cells exposed to 5μM MeHg in comparison to IFN-gamma. Although IFN-gamma supplementation alone partially improved 5μM MeHg toxicity on neurons, it weakened the protective effect of neopterin.
A Brief Review of Salivary Biomarkers as Stress Indicators in Sport and Exercise
Authors: Wing Christopher
Published: October 2018

DURING TRAINING AND COMPETITION, ATHLETES ARE SUBJECTED TO PHYSICAL LOADS THAT MAY CREATE LEVELS OF STRESS AND FATIGUE. THE SUCCESSFUL MANAGEMENT OF THIS FATIGUE, THROUGH APPROPRIATE PERIODIZATION, CAN ENHANCE PERFORMANCE AND WELL-BEING. TO ACHIEVE THIS, THE PRACTITIONER MUST HAVE A THOROUGH UNDERSTANDING OF FATIGUE. THE USE OF SALIVARY SAMPLES TO ANALYZE BIOMARKERS, SUCH AS IMMUNOGLOBULIN A, CORTISOL, AND ALPHA-AMYLASE, HAVE BEEN PROPOSED AS USEFUL MEASURES OF IDENTIFYING ATHLETE FATIGUE AND HEALTH STATUS. THE RESULTS FROM SALIVARY ANALYSIS CAN SUBSEQUENTLY BE USED TO MONITOR ATHLETE LOAD TO OPTIMIZE RECOVERY AND PROMOTE POSITIVE ADAPTATIONS AND ENHANCE ATHLETE HEALTH STATUS.
Declining free thyroxine levels over time in irradiated childhood brain tumor survivors
Authors: van Iersel Laura , Clement Sarah C , Schouten-van Meeteren Antoinette Y N , Boot Annemieke M , Claahsen-van der Grinten Hedi L , Granzen Bernd , Sen Han K , Janssens Geert O , Michiels Erna M , van Trotsenburg A S Paul , Vandertop W Peter , van Vuurden Dannis G , Caron Hubert N , Kremer Leontien C M , van Santen Hanneke M
Published: October 2018

Objective

The incidence of cranial radiotherapy (cRT)–induced central hypothyroidism (TSHD) in childhood brain tumor survivors (CBTS) is reported to be low. However, TSHD may be more frequent than currently suspected, as its diagnosis is challenging due to broad reference ranges for free thyroxine (FT4) concentrations. TSHD is more likely to be present when FT4 levels progressively decline over time. Therefore, we determined the incidence and latency time of TSHD and changes of FT4 levels over time in irradiated CBTS.

Design

Nationwide, 10-year retrospective study of irradiated CBTS.

Methods

TSHD was defined as ‘diagnosed’ when FT4 concentrations were below the reference range with low, normal or mildly elevated thyrotropin levels, and as ‘presumed’ when FT4 declined ≥ 20% within the reference range. Longitudinal FT4 concentrations over time were determined in growth hormone deficient (GHD) CBTS with and without diagnosed TSHD from cRT to last follow-up (pairedt-test).

Results

Of 207 included CBTS, the 5-year cumulative incidence of diagnosed TSHD was 20.3%, which occurred in 50% (25/50) of CBTS with GHD by 3.4 years (range, 0.9–9.7) after cRT. Presumed TSHD was present in 20 additional CBTS. The median FT4 decline in GH-deficient CBTS was 41.3% (P < 0.01) to diagnosis of TSHD and 12.4% (P = 0.02) in GH-deficient CBTS without diagnosed TSHD.

Conclusions

FT4 concentrations in CBTS significantly decline over time after cRT, also in those not diagnosed with TSHD, suggesting that TSHD occurs more frequently and earlier than currently reported. The clinical relevance of cRT-induced FT4 decline over time should be investigated in future studies.
Identification of Artistically Gifted Children in Visual Arts Teaching/Identifikacija likovno nadarene djece u nastavi likovne kulture
Authors: Brajčić Marija , Kuščević Dubravka , Pupić Bakrač Marta
Published: October 2018

AbstractThe aim of this research was to evaluate how teachers recognize younger pupils who are artistically gifted (in visual arts). The participants were 150 elementary school teachers (1st to 4th grade) from the Split-Dalmatia County and the Dubrovnik-Neretva County in Croatia. Their task was to answer the questions in the two-part questionnaire in a truthful manner.The results showed that the participants were much familiar with the characteristics by which they could recognize gifted children. There were also confirmed the statistically significant differences in identifying younger gifted pupils, regarding the teachers' work experience and level of education. The more educated and less experienced teachers were less successful in identifying gifted pupils than their more experienced, but less educated colleagues. No significant influence of the rural or urban background was noticed. We concluded that experience was a relevant factor in identifying gifted pupils.Key words: artistically gifted child; pupil; teacher; visual arts teaching.---Sažetak  Cilj ovog rada bio je istražiti koliko učitelji prepoznaju likovno nadarene učenike mlađe školske dobi. U istraživanju je sudjelovalo 150 učitelja razredne nastave iz Splitsko-dalmatinske i Dubrovačko-neretvanske županije u Hrvatskoj. Zadatak učiteljica bio je iskreno odgovoriti na anketna pitanja vezana uz karakteristike likovno nadarenog djeteta. Rezultati su pokazali kako su učitelji upoznati s karakteristikama likovno nadarene djece. Također, utvrdili smo da postoji statistički značajna razlika u identificiranju likovno nadarenih učenika mlađe školske dobi s obzirom na trajanje radnog staža. Naime, mlađe sudionice s manje radnog iskustva slabije identificiraju likovno nadarene učenike od starijih učiteljica s više iskustva i manje obrazovanja. Nije uočen značajan utjecaj mjesta stanovanja u identificiranju likovno nadarenih učenika mlađe školske dobi. Zaključili smo da je iskustvo bitan faktor u identifikaciji likovno nadarenih učenika.Ključne riječi: likovno nadareno dijete; nastava likovne kulture; učitelj; učenik
A Model for Explaining Student Achievement in Social Studies Course / Model za interpretaciju postignuća učenika u predmetu Društvene znanosti
Authors: Çalışkan Hüseyin , Uzunkol Ebru
Published: October 2018

AbstractThis study is aimed at showing how learning styles and strategies of elementary and middle school students taking a Social Studies course are explained, along with their attitudes towards the course, and their achievement during the course. The study group consisted of 320 students (172 female and 148 male) attending elementary and middle schools in Turkey. “The Learning Styles Scale”, “The Learning Strategies Scale” and “The Attitude Scale for the Social Studies Course” were used for data collection, while “report card grades” were used for determining the achievement level in the Social Studies course. Within the framework of variables, a basic model was tested by means of path analysis included in the structural equation modeling. It was concluded that the variables learning styles, learning strategies, and attitudes towards the course collectively explained positively the achievement of students in the course.Key words: achievement; attitude; learning strategy; learning style; social studies.---SažetakOvo istraživanje imalo je za cilj pokazati kako se mogu interpretirati stilovi i strategije učenja učenika osnovnih i srednjih škola koji pohađaju nastavu iz predmeta Društvene znanosti, kao i objasniti njihove stavove prema predmetu i njihova postignuća tijekom nastave. Uzorak se sastojao od 320 učenika (172 ženskog i 148 muškog spola) koji su pohađali osnovne i srednje škole u Turskoj. “Skala stilova učenja”, “Skala strategija učenja” i “Skala stavova prema predmetu Društvene znanosti” koristile su se za prikupljanje podataka, a “ocjene iz izvješća o uspjehu” koristile su se za određivanje stupnja uspješnosti u predmetu Društvene znanosti. U okviru varijabli testiran je osnovni model s pomoću analize putanje koja je uključena u strukturalno modeliranje. Zaključak je da su varijable: stilovi učenja, strategije učenja i stavovi prema predmetu zajedno pozitivno objasnile postignuća učenika u ovom predmetu.Ključne riječi: postignuće; stav; strategija učenja; stil učenja; društvene znanosti
The Relation between College Resources and Learning Outcomes: Considering the Mediating Effects of Student Engagement/Odnos između resursa visokih učilišta i rezultata učenja: razmatranje posredničkog učinka studentske angažiranosti
Authors: Malechwanzi Joseph Muthiani , Hongde Lei
Published: October 2018

Abstract The purpose of this study was to examine the relation between college resources and learning outcomes through the mediation of student engagement. Based on data collected from 430 college students and 122 faculties spread across the Coastal Region of Kenya, we used the structural equation model approach to test a model that hypothesised the relation between college resources and learning outcomes. Using student engagement as a parameter, statistical analyses demonstrated that college resources have a significant and indirect effect on student learning outcomes. The regression coefficient of college resources on student learning outcomes is reduced from 0.62 to 0.01 and is insignificant when student engagement is added to the model. The results reveal that the effects of college resources should be evaluated in terms of the degree to which they increase student engagement. Implications for practice and further research directions are also discussed. Key words: achievement; environment; involvement; vocational colleges.---SažetakCilj ovog rada jest istražiti odnos između resursa visokih učilišta i rezultata učenja posredovanjem studentske angažiranosti. Oslanjajući se na podatke prikupljene od 430 studenata i 122 obrazovne ustanove diljem obalne regije Kenije, koristili smo se statističkim modelom utemeljenim na strukturnim jednadžbama sa svrhom ispitivanja modela koji upućuje na odnos između resursa učilišta i rezultata učenja. Uzimajući studentski angažman kao parametar, rezultati statističke analize pokazali su da resursi obrazovnih ustanova imaju značajan i neizravan učinak na rezultate učenja studenata. Koeficijent regresije resursa učilišta u odnosu na rezultate učenja smanjen je s 0.62 na 0.01, te postaje beznačajan kad se modelu pridoda studentska angažiranost. Rezultati pokazuju da učinke resursa učilišta treba ocijeniti u kontekstu njihova utjecaja na uvećanje angažmana studenata. U radu se raspravlja i o implikacijama za praksu, kao i o daljnjim pravcima istraživanja.Ključne riječi: postignuće; okolina; uključenost; strukovno učilište
Kualitas Air Pada Ekosistem Terumbu Karang Di Selat Sempu, Sendang Biru, Malang
Authors: Wibawa I Gusti Ngurah Artha , Luthfi Oktiyas Muzaky
Published: October 2018

Perairan Selat Sempu yang terletak di Kabupaten Malang diketahui dalam kondisi tertekan, baik secara alamiah maupun karena faktor anthropogenic. Salah satu faktor alamiah yaitu adanya sedimentasi diikuti dengan jumlah nutrien yang berlebih yang berasal dari pegunungan diatasnya dan perairan Selat Sempu masih terpengaruh oleh adanya South Java Current yang mengakibatkan pengadukan sedimen dasar perairan. Faktor anthropogenic yang terdapat di Selat Sempu yaitu adanya pembangunan Pelabuhan Perikanan Nusantara, kegiatan masyarakat sekitar, dan aktivitas pariwisata yang tidak dikelola secara terpadu. Penelitian ini bertujuan untuk mengetahui kondisi perairan di ekosistem terumbu karang di perairan Selat Sempu. Pengambilan data parameter dilakukan dengan cara in-situ yang meliputi pengukuran kedalaman, temperatur, konduktivitas, salinitas, turbiditas, pH dan DO, selanjutnya pengolahan data sebaran kualitas air menggunakan program surfer. Hasil pengukuran rata-rata kualitas air diperoleh temperatur berkisar antara 26,92 – 27,06°C, konduktivitas 53,99 – 54,13 mS/cm, salinitas 33,64 – 33,95 PSU, turbiditas 0,54 – 1,43 NTU, pH 9,03 – 9,07 dan DO 8,36 – 8,71 mg/L.. Kualitas air menunjukkan masih dalam batasan normal untuk kehidupan terumbu karang. Apabila kondisi yang sudah baik ini tidak dijaga bisa jadi kondisi perairan akan berubah dan dapat mengancam kehidupan ekosistem terumbu karang di Selat Sempu di masa yang akan datang.
Karakteristik Pasang Surut Dan Gelombang Di Perairan Teluk Saleh, Nusa Tenggara Barat
Authors: - Yulius , Heriati Aida , Mustikasari Eva , Zahara Ranela Intan
Published: October 2018

Pemahaman mengenai karakteristik wilayah perairan, khususnya yang terkait dengan pasang surut dan gelombang air laut merupakan salah satu kebutuhan utama dalam pengelolaan wilayah pesisir. Penelitian ini bertujuan untuk mengetahui karakteristik pasang surut dan gelombang di perairan Teluk Saleh, Nusa Tenggara Barat. Penentuan karakteristik pasang surut dan gelombang menggunakan software Tidal Model Driver (TMD) berbasis bahasa pemrograman MATLAB dan software SWAN versi 40.91ABC generasi ketiga untuk memodelkan kondisi pasang surut dan gelombang disuatu daerah. Data primer yang digunakan adalah data pasang surut pengambilan pada tanggal 17 Agustus 2016 – 14 September 2016 dengan menggunakan alat tide gauge dan data sekunder dalam studi ini adalah data batimetri yang didapat dari GEBCO serta data angin yang dibuat konstan untuk setiap musimnya. Hasil pemodelan pasang surut dapat disimpulkan bahwa perairan Teluk Saleh mempunyai tipe pasut campuran (dominan diurnal) dan hasil grafik elevasi pasang surut yang diamati memiliki tipe pasut campuran condong harian ganda ke semi diurnal (mixed mainly semidiurnal). Hasil dari pemodelan gelombang menunjukkan tinggi tinggi gelombang signifikan yang terjadi mencapai 1 meter pada musim barat, peralihan I dan musim timur. Sedangkan pada musim peralihan II hanya mencapai 0,5m. Perioda puncak gelombang maksimum terjadi pada musim timur selama 5 detik, pada musim barat dan musim peralihan I perioda puncak gelombang adalah sebesar 4,7 detik dan nilai perioda minimum 3 detik terjadi pada musim peralihan II dengan dengan gelombang yang bergerak dari arah tenggara (dalam teluk) menuju keluar teluk.
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Authors: Subandriyo Joko
Published: October 2018

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The Suitability Of Coastal Area Development Based On Minawisata Concept in Pacitan District
Authors: Amri Syahrial Nur , Arifin Taslim
Published: October 2018

Minawisata concept is the implementation and integration of efforts to optimize the utilization of marine and coastal resources with action to maintain the sustainability and value of sustainability. This study aimed to determine the suitability of the coastal land development in Pacitan District based on the potential of marine and coastal areas in accordance to the minawisata concept. Study area covered seven districts along the coastline of Pacitan District, East Java Province, namely Donorejo, Pringkuku, Pacitan, Kebonagung, Tulakan, Ngadirejo, and Sudimoro District. The methodology used in this study is a combination of Geographic Information Systems analysis, satellite imagery interpretation, and field data processing. This study is limited to the identification of the potential of marine and coastal area, the suitability of land use, and the suitability of coastal area development based on the minawisata concept. The results show that there are three dominant utilizations of marine and coastal areas in Pacitan District, including: Marine Aquaculture, Capture Fisheries, and Beach Tourism. Based on the analysis on suitability of the marine and coastal area, seven districts in Pacitan are suitable for fisheries and beach tourism, while only two districts were suitable for marine aquaculture with several conditions, namely Pacitan District and Ngadirejo District. The implementation of minawisata concept for coastal area suitability based on the analysis of seven identified districts is feasible for further development.
Fluktuasi Nitrat, Fosfat dan Silikat di Perairan Pulau Bintan
Authors: Meirinawati Hanny , Muchtar Muswerry
Published: October 2018

Pulau Bintan di Provinsi Kepulauan Riau merupakan wilayah perairan yang diandalkan sebagai penghasil bahan tambang bauksit, penghasil komoditas perikanan dan sebagai daerah wisata yang banyak dikunjungi oleh wisata baik lokal ataupun mancanegara. Wilayah pesisir dan sumber daya yang dimiliki Pulau Bintan merupakan kontributor penting untuk pembangunan ekonomi dan kualitas hidup sehingga perlu dikelola dengan baik. Penelitian ini bertujuan untuk mengetahui kondisi perairan Bintan ditinjau dari kandungan nitrat, fosfat, dan silikat pada dua musim yang berbeda yang nantinya dapat digunakan oleh pemerintahan setempat dan instansi terkait dalam mengembangkan dan mengelola perairan kawasan perairan Pulau Bintan. Pengambilan sampel untuk penelitian nutrien (nitrat, fosfat, dan silikat) di perairan timur Kepulauan Bintan telah dilakukan di 27 titik lokasi pada April dan Agustus 2014. Konsentrasi nutrien berfluktuasi pada April dan Agustus. Nilai rata-rata kosentrasi nitrat, fosfat, dan silikat pada April berturut-turut yaitu 0,0510 ± 0,0014 mg/L, 0,0050 ± 0,0026 mg/L dan 0,2660 ± 0,1655 mg/L. Konsentrasi rata-rata nitrat, fosfat, dan silikat pada Agustus berturut-turut yaitu 0,0260 ± 0,0104 mg/L, 0,0160 ± 0,0091 mg/L dan 0,057 ± 0,035 mg/L. Konsentrasi nitrat, fosfat, dan silikat di perairan Bintan termasuk dalam kategori rendah.
Pola Distribusi Konsentrasi Klorofil-a di Laut Maluku berdasarkan Pengamatan In Situ INDESO Joint Expedition Program 2016 dan Data Penginderaan Jauh
Authors: Hermawan Indra , Setiawan Agus , Pusparini Nikita
Published: October 2018

Tujuan dari penelitian ini adalah untuk mengetahui pola distribusi konsentrasi klorofil-a di perairan Laut Maluku yang termasuk dalam Wilayah Pengelolaan Perikanan RI 715 berdasarkan data pengamatan in situ dan penginderaan jauh. Penelitian ini dilakukan pada bulan September 2016 dan merupakan bagian dari Pelayaran Oseanografi INDESO Joint Expedition Program (IJEP) 2016 yang dilaksanakan oleh Badan Penelitian dan Pengembangan Kelautan dan Perikanan (Balitbang KP) menggunakan Kapal Riset Baruna Jaya VIII. Berdasarkan hasil pengamatan in situ pada 8 titik pengamatan di sepanjang Laut Maluku dari selatan ke utara, didapatkan bahwa konsentrasi klorofil-a di permukaan berkisar antara 0,1 hingga 0,6 mg/m3. Hasil perbandingan antara konsentrasi klorofil-a hasil pengamatan in-situ dengan model biogeokimia INDESO dan citra satelit SeaWiFS masing-masing memberikan root mean square error sebesar 0,1507 dan 0,1364 mg/m3. Sementara itu, secara vertikal konsentrasi klorofil-a maksimum (antara 0,4 hingga 1 mg/m3) ditemukan pada kedalaman antara 17 hingga 61 meter, yaitu pada lapisan mixed layer.
Kondisi Hidrooseanografi Perairan dan Hubungannya dengan Kelimpahan Fitoplankton di Perairan Sedanau dan Pulau Tiga, Kabupaten Natuna, Kepulauan Riau
Authors: Radiarta I Nyoman , - Erlania , Haryadi Joni
Published: October 2018

Penelitian ini bertujuan untuk mengkaji kondisi kualitas perairan dan hubungannya dengan kondisi fitoplankton di perairan Pulau Sedanau dan Pulau Tiga Kabupaten Natuna, Kepulauan Riau. Kondisi kualitas perairan dianalisis secara statistik dengan pendekatan klaster analisis dan indek kualitas air/WQI (Water Quality Index), dengan melibatkan  seluruh parameter dan berdasarkan parameter kunci biota perairan.  Hasil analisis klaster membagi kawasan perairan menjadi tiga klaster di masing-masing lokasi penelitian. Klaster ini membagi kawasan perairan berdasarkan kedekatan dengan daratan dan tingkat keterbukaan (keterlindungan) kawasan. Pembagian kawasan ini dapat digunakan sebagai acuan lokasi pengembangan budidaya laut. Analisa indek kualitas air menunjukkan bahwa perairan Pulau Sedanau dan Pulau Tiga masih dalam kategori baik dengan nilai indek berkisar antara 71-90. Terdapat hubungan yang signifikan (90%) antara klaster kawasan dengan kondisi fitoplankton, sedangkan hubungannya dengan WQI umumnya tidak signifikan. Hasil penelitian ini menunjukkan bahwa karaktersitik perairan di Pulau Sedanau dan Pulau Tiga cukup berbeda, namun masih sangat baik untuk mendukung pengembangan budidaya laut.
DAMPAK PERUBAHAN PENGGUNAAN LAHAN TERHADAP KONDISI PADANG LAMUN DI PERAIRAN TIMUR PULAU BINTAN KEPULAUAN RIAU
Authors: Supriyadi Indarto Happy , Rositasari Ricky , Iswari Marindah Yulia
Published: October 2018

Padang lamun memiliki peran penting sebagai sumber utama produktivitas primer atau penghasil bahan organik, habitat untuk berbagai biota, tempat asuhan, tempat memijah, sumber makanan bagi biota langka dan penyokong keanekaragaman jenis-jenis biota laut serta bernilai ekonomis dari jasa ekosistem lamun. Aktivitas pembangunan di wilayah pesisir yang terus meningkat telah mengakibatkan kerusakan padang lamun di perairan timur pulau Bintan. Saat ini kajian terbaru terkait dengan kondisi lamun belum tersedia. Kajian ini dilakukan pada Mei dan September (2015-2016) dengan tujuan untuk mengetahui dampak perubahan tutupan lahan terhadap kondisi lamun di perairan timur pulau Bintan. Kondisi lamun ditentukan berdasarkan persentase tutupan lamun. Analisis perubahan penggunaan lahan menggunakan perangkat lunak ENVI 5.1 dan ArcGIS 10.1. Pengukuran debit sungai dan penanganan sampel air dilakukan di lapangan dan laboratorium P2O-LIPI Jakarta. Hasil penelitian menunjukkan bahwa perubahan penggunaan lahan menjadi lahan terbuka, perkebunan dan semak belukar pada DAS Kawal telah memberikan dampak menurunnya kondisi lamun khususnya di sekitar muara Sungai Kawal. Secara umum kondisi lamun di perairan timur Pulau Bintan menurun ditunjukkan dengan persentase tutupan lamun yaitu 46 % (2006) dan 41 % (2015). Dalam penelitian ini ditemukan tujuh spesies lamun, antara lain Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Cymodocea serrulata, Halophila ovalis, Halodule uninervis dan Syringodium isoetifolium.
Cover
Authors: Subandriyo, ST Joko
Published: October 2018

Cover Jurnal Segara Vol 14 No 1 April 2018
Modeling Tidal Current on Banten Bay During Transitional Monsoons
Authors: Bayhaqi Ahmad , Wisha Ulung Jantama , Surinati Dewi
Published: October 2018

Hydrodynamical condition of Java sea as a part of Indian-Pacific throughflow system which is influenced by monsoon will affect the condition of Banten bay such tidal current. Bordered by Java sea makes Banten bay preoccupied with fisheries and shipping activities, so the information of current pattern e.g. tidal current is very necessary. This study aims to simulate the tidal current pattern using flow model fm as a numerical approach. Two-dimensional hydrodynamic model was employed to perform the simulation of tidal current. Model was validated by using current and tidal observation data which was taken on September 2015 and April 2016. The result shows that the current moved southwestern toward the land during high neap and high spring tidal conditions which ranged 0 – 0.142 m/s at the first transitional monsoon and 0-0.153 m/s at second transitional monsoon. During low spring tidal condition for both transitional monsoon, the current flowed northwestward on west side and northeastward on east side within the bay which ranged 0 – 0.137 m/s and 0 – 0.127 m/s respectively. The hydrodynamic conditions of Banten Bay are severe different between 2 transitional seasons, especially for the current speed and direction. It induces a different transport mechanism, resulting the unstable accretion and abrasion along Banten Bay coast.
Assesment Of Heavy Metal In Kramat Kebo Estuary, West Java, Indonesia As Habitat Of Oryzias Javanicus
Authors: Puspitasari Rachma , Lestari Lestari
Published: October 2018

Nowadays, contamination monitoring in Indonesia still focused on traditional method like only depend on measurement of chemical and physical parameter.  In addition, the use of organism, known as bioindicator brings some advantages such as knowing about habitat alteration and relationship between organism and environment. Fish from genus Oryzias had been known in Malaysia and Japan as a sensitive bioindicator. One of species, O. javanicus, was found in Kramat Kebo estuary, West Java, Indonesia. This preliminary study aims to determine metal distribution in water and sediment in Kramat kebo estuary, as a habitat of O. javanicus. It is also a preliminary study to assess possibility of O. javanicus as a bioindicator of heavy metal contamination in coastal area.  Sampling was conducted on March and September, 2014 and analysis of total metal was done by Atomic Absorbance Spectrophotometry. Result showed that metal in water still below the threshold value by Ministry of Environment. Metal in sediment analyzed by Sediment Quality Guidelines Quetiont (SQG-Q) index, showed that all stations has SQG-Q value < 0.1, which is means that Kramat Kebo estuary is unimpacted area. We conclude for this preliminary study that existence of O. javanicus were related to less polluted of heavy metal in estuary and it suitable for bioindicator of uncontaminated heavy metal area.
ACCESSIBILITY EVALUATION OF MOOCS’ WEBSITES OF TURKEY
Authors: AKGÜL Yakup
Published: October 2018

Massive Open Online Courses are emerged by the use of developing technologies for distance learning. With the aid of these systems, millions of people have an opportunity to attend academic lectures and obtain certificate. In recent years, most of the well known universities have supported these type of studies. Thus, number of open courses have been increased. In this study, specifically in context of Turkey, three most commonly used MOOC platforms evaluated the level of accessibility of localized MOOCs using automatic accessibility checking and provide some recommendations to improve its accessibility and usability.
TÜRKİYE VE BAZI AB ÜLKELERİNDE YOKSULLUK VE GELİR DAĞILIMI
Authors: ABAY Çağdaş , SEZGİN Şennur
Published: October 2018

Bu çalışmada sosyo-ekonomik değişkenlerin yoksulluk üzerindeki etkilerinin tespit edilmesihedeflenmiştir. Bu amaçla eğitim, çalışan nüfus oranı, satın alma gücü paritesine göre milli gelir, enflasyon oranı ve net ücretin seçilmiş 8 AB üyesi ülkelerde 2006-2015 yıllarını kapsayan dönemde yoksulluk üzerindeki etkisi panel veri yöntemlerinden sabit etkiler modeli, tesadüfi etkiler modeli, havuzlanmış regresyon ve genelleştirilmiş momentler metodu ile analiz edilmiştir. Çalışmadan elde edilen bulgulara göre, satın alma gücü paritesine göre milli gelirin bütün modellerde, eğitimin ise sabit etkiler modeli dışındaki diğer modellerde yoksulluğu azaltıcı yönde etki ettiği sonucuna ulaşılmaktadır. Enflasyon ve çalışan nüfus oranının ise yoksulluk üzerinde bir etki yaratmadığı görülmektedir.
ONLINE ALIŞVERİŞ SÜREÇLERİNDE DİJİTAL YERLİLERİN VE DİJİTAL GÖÇMENLERİN STRES DÜZEYLERİNİN BİYOMETRİK ANALİZİ
Authors: TOMRİS KÜÇÜN Nihan , YAMAN Can , GÜNGÖR SEZEN , EROĞLU Selçuk
Published: October 2018

Günümüz iletişim çağında, ‘dijital göçmenler’ ve ‘dijital yerliler’ olarak tanımlanan tüketici gruplarının online satın alma davranışlarında pek çok farklılık bulunmaktadır. Yapılan araştırmalar, teknoloji ile doğar doğmaz tanışan dijital yerlilerin alışkın oldukları online alışverişe teknoloji ile erişkin dönemlerinde tanışan dijital göçmenlerin daha mesafeli yaklaştığını göstermektedir. Bu çalışmada sürekli çevrimiçi olmayı doğal kabul eden dijital yerliler ile henüz adaptasyon sürecinde olan dijital göçmenlerin online alışveriş süreçlerindeki tutumları ve süreci etkileyen faktörler ‘stres düzeyleri’ üzerinden incelenmiştir. Araştırmada her iki grup da online alışverişteki önemli stres faktörlerinden biri olan “web sitesi yüklenme hızı”nın uyaran olarak kullanılması ile manipüle edilmiş ve satın alma davranışlarındaki değişimler araştırılmıştır.

Stres düzeyleri, Galvanik Deri İletkenliği Tepkisi kullanılarak analiz edilmiş ve iki grup arasındaki fark istatistiksel yöntemler kullanılarak tespit edilmiştir. Tespit edilen stres düzeyleri farkının; hedef pazarı oluşturan iki temel grubun online alışveriş alışkanlıklarının ve alışveriş sitelerinin teknik altyapılarının tüketicinin satın alma kararı üzerindeki etkisinin anlaşılması için önemli olduğu düşünülmektedir.
BORSA İSTANBUL ENDEKSLERİNİN BİRBİRİYLE BAĞININ KEŞFİ
Authors: KOCABIYIK Turan , TEKER Türker
Published: October 2018

Finans ve iktisadi alanlarda nedensellik analizleri değişkenler arasında uzun dönem ilişkiyi ölçmek üzere sıkça kullanılan yöntemlerdir. Borsaların birbirini etkileme gücü ile ilgili hem Dünya’da hem de Türkiye’de çokça çalışma yapılmıştır. Bu çalışmalarda farklı ülke borsalarının önemli endeksleri arasındaki ilişki ölçülmeye çalışılmıştır. Bu çalışmada ise Borsa İstanbul’un kendi içinde borsa endekslerinin birbirini etkileyip etkilemediği, etkileşim varsa hangi endekslerin eş yönlü hangi endekslerin zıt yönlü hareket ettiği tespit edilmeye çalışılmıştır. Bu yönüyle çalışmanın literatüre katkı sağlayacağı düşünülmektedir.

Bu çalışmanın amacı Borsa İstanbul’da yer alan önemli endeksler arasında nedensellik ilişkisi olup olmadığını keşfetmektir. Araştırmada Borsa İstanbul 100 endeksi ile yine pay piyasası endekslerinden; Borsa İstanbul 30 Endeksi ,Mali Endeks, Sınai Endeks ve Hizmetler Endeksi araştırmaya dahil edilmiştir. Çalışmada Borsa İstanbul endekslerinin 2010-2017 yılları arasındaki günlük kapanış verilerinden yararlanılmıştır. Seçilen 6 endeksin verilerine önce birim kök testi uygulanmıştır. Serilerin tamamı düzey değerlerinde durağan değilken birinci derece farkları durağan hale gelmiştir. Dolayısıyla serilere Johansen Eşbütünleşme metodolojisi uygulanmıştır. Modelin gecikme uzunluğu 3 bulunmuş ve Johansen Eşbütünleşme testi yapılmıştır. 1 eşbütünleşik vektöre rastlanmıştır. Vektör hata düzeltme modeli ile de endeksler arası ilişki detaylı biçimde incelenmiştir.
DESIGN OF A WIRELESS SENSOR NETWORK FOR GREENHOUSES TEMPERATURE ANALYSIS
Authors: Barbosa Rogério Zanarde , Perea Martins João E. M.
Published: October 2018

DESIGN OF A Wireless Sensor Network FOR GreenhouseS Temperature Analysis

 

 

Rogério Zanarde Barbosa1 and João EDUARDO MACHADO Perea Martins 2

 

1 Faculty of Higher Education and Integral Formation (FAEF), 17400-000, Garça-SP, Brazil. E-mail: rogeriozanarde@gmail.com.

2 Computer Science Department, School of Sciences (FC), São Paulo State University (UNESP), 17033-360, Bauru-SP, Brazil. E-mail: perea@fc.unesp.br. Orcid iD https://orcid.org/0000-0003-1056-497X

 

 

1 Abstract

 

This work presents a wireless sensor network designed with fifteen temperature sensors to monitor this parameter variation inside a greenhouse, where all temperature values were transmitted by radio to a distant computer that records it into a database that allows a detailed temperature analysis. The results showed that the network operated efficiently in the greenhouse and allows more accurate definitions relative to the optimal sensor locations for extreme temperatures verification, and also allow a precise description of temperature variation over time.

 

Keywords: WSN, climate, temperature, sensors

 

 

Barbosa, R. G. and Perea Martins, J. E.M.

 PROJETO DE UMA rede de sensores sem fio PARA ANÁLISE DA TEMPERATURA EM CASAS DE vegetação

 

 

2 Resumo

 

Este trabalho apresenta uma rede de sensores sem fio, projetada com quinze sensores de temperatura para monitorar a variação deste parâmetro dentro de uma estufa, onde todos os valores de temperaturas foram transmitidos por rádio para um computador remoto, no qual foi gravado um banco de dados para permitir uma análise detalhada deste parâmetro. Os resultados mostraram que a rede operou eficientemente na estufa e permite precisas definições relativas às localizações ótimas dos sensores para a verificação de temperaturas extremas e também permite uma descrição precisa da variação de temperatura ao longo do tempo.

 

Palavras-chave: RSSF, clima, temperatura, sensores
DESIGN OF AN ELECTRONIC SYSTEM FOR DRIP EMITTERS ANALYSIS IN IRRIGATION SYSTEMS
Authors: Voltan Diego Scacalossi , Perea Martins João E. M. , Barbosa Rogério Zanarde
Published: October 2018

DESIGN OF AN ELECTRONIC SYSTEM FOR DRIP EMITTERS ANALYSIS IN IRRIGATION SYSTEMS

 

 

DIEGO SCACALOSSI VOLTAN; João EDUARDO MACHADO Perea Martins 1 AND Rogério ZANARDE Barbosa2

 

1 Computer Science Department, School of Sciences (FC), São Paulo State University (UNESP), 17033-360, Bauru-SP, Brazil. E-mail: perea@fc.unesp.br. Orcid  iD https://orcid.org/0000-0003-1056-497X

2 Faculty of Higher Education and Integral Formation (FAEF), 17400-000, Garça-SP, Brazil. E‑mail: rogeriozanarde@gmail.com.

 

 

1 ABSTRACT

 

This work shows the design of a system for automatic monitoring of drip emitters in irrigation processes, which allows the counting of drops from an emitter and also the accumulated water weighing. Its main goal is to provide an electronic system for verification of drip irrigation uniformity, whose physical measured parameters can be sent to a computer through a direct cable or through a radio system that allows long distance monitoring.

 

Keywords: Drip irrigation, automation, uniformity

 

 

VOLTAN, D. S.; Perea Martins, J.E.M.; Barbosa, R. Z.

PROJETO DE UM SISTEMA ELETRÔNICO PARA ANÁLISE DE GOTEJADORES EM SISTEMAS DE IRRIGAÇÃO

 

 

2 RESUMO

 

Este trabalho mostra o projeto de um sistema para monitoramento automático de gotejadores em processos de irrigação, o qual permite a contagem do número de gotas de um gotejador e também permite a pesagem de água acumulada. O objetivo principal é fornecer um sistema eletrônico para verificação da uniformidade da irrigação por gotejamento, cujos parâmetros físicos medidos podem ser enviados para um computador diretamente através de um cabo ou através de um sistema de rádio que permite o monitoramento a longa distância.

 

Palavras-chave: Irrigação por gotejamento, automação, uniformidade.
The analysis of stress concentration around dowel bars in concrete pavement
Authors: Mackiewicz Piotr , Szydło Antoni
Published: October 2018

Exceeding permissive stresses concentrated around dowels in concrete is the main factor that limits the efficiency of load transfer in pavement. To study the contact stresses, laboratory analyses and numerical calculations using the finite-element method were carried out for various load levels and different dowel diameters. The results indicate that the simulation using the linear-elastic model is efficient in the calculation of stresses and agrees with the study of selected load intervals. The authors focused attention not only on the compressive stresses under the dowel but also on tensile stresses, whose concentration and large values can cause the development of cracks in concrete. It was found that damage resulting from large load levels occurs in dowels with small diameters where the permissive displacement of the dowel has been exceeded, whereas in dowels with large diameters the damage is caused where the permissive tensile stresses in the concrete have been exceeded. The analyses of various load levels can be useful in the selection of the spacing and diameters of dowels applied in the pavement.
Performance of concrete containing recycled springs in post-fire conditions
Authors: Pachideh Ghasem , Gholhaki Majid , Moshtagh Amin
Published: October 2018

The main objective of this study was to assess the performance of concrete containing recycled springs with various volume fractions of 0·2, 0·4 and 0·6% at temperatures of 25, 100, 250, 500, 700 and 900°C. In addition, a comparison between concrete mixes containing steel and polypropylene fibres was performed using tensile and compressive strength tests to attain an optimum mix design. The results showed that the compressive and tensile strengths of concrete specimens were improved by adding the percentages of 0·2, 0·4 and 0·6% springs. However, these strengths decreased by increasing the volume fraction of springs. Furthermore, the optimal compressive strength of concrete containing springs was 2–3 times greater than that of concrete containing steel and polypropylene fibres at various temperatures, but there was no significant difference between the tensile strengths of concrete containing springs and steel fibres. In addition, the use of fibre in concrete caused a decrease in the width of the cracks created after the splitting tensile test, by up to three times.