bluuebunny/crossref_metadata_2025_split huggingface dataset:
Kinerja dan Motivasi Penyuluh Pertanian di Provinsi Jawa Barat
Authors: Suhanda Nani Sufiani , Jahi Amri , Sugihen Basita G , Susanto Djoko 
Published: May 2017

<p><em>A research to investigate </em><em>the relationship of the agricultural extension agent (AEA) motivator-hygiene factors and their job performances at different agriculture extension institution in west java was conducted in August through Desember 2007. The objectives of this study were:1) to identify their job performance and 2) to determine </em><em>the relationship of the agent motivator-hygiene factors and their job performances in west Java Province. A total of 260 AEA from 17 districts in West Java were selected by a stratified randomized sampling technique with proportional allocation as a sample of the study. Descriptive statistics were used to determine the agents’ description on their motivator-hygiene factors, whereas the Kendall coefficient of concordance W was used to analyze the relationship of AEA performance and their motivator-hygiene factors. The results shown that some substantial works need to be done in order to improve the agents’ performances due to low hygiene factors and insufficient of motivating factors. Furthermore, the Kendall coefficient of concordance W obtained mostly high and highly significant. It could be concluded that AEA performed best in respectively involving informal leaders, farmer group development, extension work plan, using extension method, program planning; and performed well in evaluation and reporting subject matters development, farmer self reliance development, office maintenance and administrative, rural economic development and need assessment. Finally, Agriculture extension agent performed unsatisfactorily in evaluation and reporting, networking and professional development. </em></p><p> </p><em></em>
Faktor-Faktor Yang Mempengaruhi Efektivitas Kelembagaan Petani (Kasus di Provinsi Jawa Tengah)
Authors: Anantanyu Sapja , Sumardjo Sumardjo , Slamet Margono , Tjitropranoto Prabowo 
Published: May 2017

<p><em>The effectiveness farmer’s institutions were needed for the agricultural development in globalization economic era. Economic indicators, agricultural infrastructures, and government policy often cause small farmer to economical and social marginalized. On the other side, farmer’s institutions which are expected be able to strengthen the farmer position to face the existing problems not effectively yet. The purpose of this research are to: (1) Identify and explain various factors have affected on the effectiveness of farmer’s institution, and (2) Formulate an appropriate strategy in capacity building of farmer’s institution. This Research was conducted at three district of Center Java Province, there are: Klaten, Grobogan, and Karanganyar. The result shows that effectiveness of farmer’s institution is still at medium category. Effectiveness of farmer’s institution was directly influenced by level of member’s participation in farmer’s institution, outsider role, formal education, and local leadership. Famer’s income, the quality of extension, social participation, needs, and capacities level of farmer were indirectly influenced to the effectiveness of farmer’s institution by participation in farmer’s institution. Learning experience of famer indirectly influences to the effectiveness of farmer’s institution by capacities level of farmer. The quality of agricultural extension, directly and indirectly, influences to the farmer’s capacities. It increases their participation in farmer’s institution and push their institution effectiveness.</em></p><p><em> <br /></em></p>
Persepsi Mahasiswa Terhadap Kesadaran Gender
Authors: Taher Alwin , Hubeis Aida Vitayala S 
Published: May 2017

<p>Tujuan dari penelitian ini adalah menganalisis: 1) persepsi mahasiswa terhadap kesadaran gender; 2) hubungan antara sosialisasi primer (jenis kelamin, agama, suku bangsa, tingkat pendidikan orang tua, orang tua pekerjaan, dan tingkat gaji orang tua),) dengan persepsi mahasiswa terhadap kesadaran gender; 3) hubungan antara sosialisasi sekunder (daerah tempat tinggal, aktivitas organisasi, interaksi media massa, hubungan dengan teman, kelas gender dan kuliah pengembangan, dan indeks prestasi kumulatif) dengan persepsi mahasiswa terhadap kesadaran gender. Sampel dari penelitian ini adalah mahasiswa dari Fakultas Ekologi Manusia, Departemen Sains Komunikasi dan Pengembangan Masyarakat. Penelitian ini dimulai pada Mei sampai Juni 2009 menggunakan jumlah sampel 70 responden. Data dianalisis dengan menggunakan SPSS 14. Hasil penelitian menunjukkan bahwa: 1) Persepsi mahasiswa terhadap kesadaran gender yang tinggi (39 responden) dan lain-lain (31 responden) memiliki tingkat persepsi media mahasiswa pada kesadaran gender; 2) Sosialisasi primer yang memiliki hubungan yang signifikan dengan persepsi mahasiswa terhadap kesadaran gender hanya seks dan yang lain tidak memiliki hubungan yang signifikan dengan persepsi mahasiswa terhadap kesadaran gender; 3) semua sosialisasi sekunder (ruang tamu, aktivitas organisasi, interaksi media massa, hubungan dengan teman, kelas gender dan kuliah pengembangan, dan prestasi indeks kumulatif) tidak memiliki hubungan yang signifikan dengan persepsi mahasiswa pada kesadaran gender</p><p> Kata kunci: Persepsi, kesadaran jender, sosialisasi primer, sosialisasi sekunder, tingkat intelektual</p>
Strategi Penyuluhan di Kawasan Konservasi (Kasus Taman Nasional Kepulauan Togean)
Authors: Sangadji Muhd Nur , Sumardjo Sumardjo , Asngari Pang S , Soewito Soenarmo H 
Published: May 2017

<p><em>The aim of this research are (1) To describe the factors influences the community participation on mana</em><em>­</em><em>gement of Togean Island National Park. (2) To analyze the role of extension and it’s correlation to the community participation. (3). To formulate an extension strategy to increase the community participation on management of Togean Island National Park.</em><em> </em><em>The research was conducted in Togean Island National Park in Central Sulawesi on August to Septembre 2008 and March to April 2009. Five variables are used to measure the community participation by using Structural Equ</em><em>a</em><em>tion Model (SEM) and LISEREL 8.30 sofware. Those variables are</em><em> i</em><em>nternal characteristic, extension process, </em><em>e</em><em>ksternal factor, </em><em>c</em><em>ommunity capacity and </em><em>c</em><em>ommunity participation.</em><em> </em><em>The result of research shown that extension proccess have a significant effect on the community capacity. </em><em>C</em><em>ommunity capacity have a significant effect </em><em>to</em><em> the community participation on management of Togean Island National Park. The </em><em>strategy</em><em> that can be used to increase the community participation is to improve the proces</em><em>s</em><em> of extension. </em></p><p> </p><p><em>Keywords: extension, community participation and </em><em>national park</em><em>.</em><em> </em></p>
Performance Studies as New Anthropology of Events
Authors: Simonović Alifirević Sanja , Alifirević Đorđe 
Published: May 2017

The question of relations between performance studies and new anthropology of events within the open cultural field directly points to the internal interventionist practice of performance and event as the agent of generative and constitutive roles in terms of initiating social processes and situations. An analysis of Turner’s dramaturgical patterns in the development and solution of social crisis, as well as Goffman’s social roles, in direct relation with performance studies, indicate that there is an original connection of these two theoretical platforms and point to their integral importance in terms of actualization and critical thinking related to current social situations. The basic theoretical and social transformations, connected to globalism and interculturalism, led to a redefinition of the aims and range of anthropological knowledge. Global anthropology of the contemporary in current, mediatized society is connected to the question of event, i.e. the event as performance, including different aspects of presence and behavior in a wide spectrum of human activities, along with their consequences.

Article received: December 14, 2016; Article accepted: January 27, 2017; Published online: April 20, 2017
Original scholarly paper

How to cite this article: Simonović Alifirević, Sanja, and Đorđe Alifirević. "Performance Studies as New Anthropology of Events." AM Journal of Art and Media Studies 12 (2017): 149-157. doi: 10.25038/am.v0i12.174
Wear behavior of ultrasonic impact treated S235JR steel
Authors: Kahraman Fatih , Kahraman Haydar , Yolcu Coşkun , Kahraman Ayça Demirer 
Published: May 2017

Abstract
In this study, wear behavior of ultrasonic impact treated S235JR steel was investigated. Samples were peened for different times (5, 15 and 30 minutes) by ultrasonic impact treatment. It was found that triple layers (nanocrystallization, plastic deformation and residual stress) formed on the treated surface. The thickness of the layers treated samples increased with increasing treatment time. It was also determined that surface roughness of treated samples decreased with increasing treatment time. All treated samples have significant surface hardness. Nanocrystallization layer on top of the treated surface has the highest hardness values in comparison with the hardness of the other layers. The treatment increases not only surface hardness, but also wear resistance of all treated samples. The maximum wear resistance was observed for the 30 min treated samples due to the high hardness and thickness of the nanocrystallization layers.
Abrasive wear resistance optimization of three different carbide coatings by the Taguchi method
Authors: Gür Ali Kaya , Kaya Sinan 
Published: May 2017

Abstract
In this study, FeCrC, SiC and B4C powders were alloyed on the surface of AISI 430 ferritic stainless steel by plasma arc welding. The mass losses of the abrasive wear of the AISI 430 substrate were examined under the loads of 6, 10 and 16 N and in the distances of 10, 20 and 30 m by using Taguchi design method. The results of abrasive wear test were optimized by the minimum optimal control characteristics of the Taguchi procedure and the results were analyzed by using graphical methods. The Taguchi procedure is an important approach to achieve high quality without increasing the cost during the optimization of process parameters. The orthogonal planes of maximum effects of the controllable process parameters and minimum effects of uncontrollable process parameters were employed in the Taguchi method.
Very high cycle fatigue testing of concrete using ultrasonic cycling
Authors: Karr Ulrike , Schuller Reinhard , Fitzka Michael , Denk Andreas , Strauss Alfred , Mayer Herwig 
Published: May 2017

Abstract
The ultrasonic fatigue testing method has been further developed to perform cyclic compression tests with concrete. Cylindrical specimens vibrate in resonance at a frequency of approximately 20 kHz with superimposed compressive static loads. The high testing frequency allows time-saving investigations in the very high cycle fatigue regime. Fatigue tests were carried out on “Concrete 1” (compressive strength fc = 80 MPa) and “Concrete 2” (fc = 107 MPa) under purely compressive loading conditions. Experiments at maximum compressive stresses of 0.44 fc (Concrete 1) and 0.38 fc (Concrete 2) delivered specimen failures above 109 cycles, indicating that no fatigue limit exists for concrete below one billion load cycles. Resonance frequency, power required to resonate the specimen and second order harmonics of the vibration are used to monitor fatigue damage in situ. Specimens were scanned by X-ray computed tomography prior to and after testing. Fatigue cracks were produced by ultrasonic cycling in the very high cycle fatigue regime at interfaces of grains as well as in cement. The possibilities as well as limitations of ultrasonic fatigue testing of concrete are discussed.
Auswahl eines Kennwertes für den Vergleich des mechanischen Leistungsniveaus von Polyethylenformstoffen für Gefahrgutverpackungen
Authors: Weltschev Margit 
Published: May 2017

Kurzfassung
Zum Vergleich der Polyethylenformstoffe für eine Bauart von Gefahrgutverpackungen und IBC (Intermediate Bulk Container) wurden die folgenden Materialkennwerte der DIN EN 15507 (Verpackung – Verpackungen zur Beförderung gefährlicher Güter – Vergleichende Werkstoffprüfung von Polyethylensorten) ausgewählt: Schmelze-Massefließrate MFR, Dichte D, Kerbschlagzähigkeit acN bei −30 °C, Spannungsrissbeständigkeit (bestimmt mit dem Full Notch Creep Test) und Beständigkeit gegen oxidativen Abbau Ox (bestimmt durch den prozentualen Anstieg des MFR in Salpetersäure). Das Ziel der Untersuchungen war die Auswahl eines Kennwertes für die Bestimmung des mechanischen Leistungsniveaus von Polyethylenformstoffen, da unter Druck Verpackungen beulen oder knicken. Zur Auswahl standen drei Prüfverfahren: a) Bestimmung der Biegesteifigkeit S nach DIN 53350 (Prinzip von Ohlsen), b) Bestimmung der Biegefestigkeit σfM und Biegedehnung ∊fM nach DIN EN ISO 178 und c) Bestimmung der Druckkraft Fmax und Verformung dL bei Fmax nach DIN EN ISO 604. Die Prüfmethode zur Bestimmung der Biegesteifigkeit nach DIN 53350 eignet sich zum Vergleich des mechanischen Leistungsniveaus der Formstoffe. Zur Verbesserung der Reproduzierbarkeit der Ergebnisse sollte der Skalierungsbereich der Prüfapparatur erweitert werden, um genauere Messergebnisse zu erzielen. Der Dreipunktbiegeversuch nach DIN EN ISO 178 eignet sich bei verformungsfähigen Kunststoffen, wie dem Polyethylen, zur Bestimmung der Biegefestigkeit σfM. Dieser Versuch besitzt den Nachteil, dass am Ort des maximalen Biegemoments in der Randschicht, wo auch die maximale Biegespannung erzeugt wird, zusätzlich der Biegestempel angreift. Die Messergebnisse haben gezeigt, dass die Druckprüfung nach DIN EN ISO 604 sich sehr gut zur Bewertung des mechanischen Verhaltens der Polyethylenformstoffe unter Druckbelastung (Stapeldruckprüfung der Verpackungen) eignet.
Initial academic experience and learning curve with robotic spine instrumentation
Authors: Urakov Timur M. , Chang Ken Hsuan-kan , Burks S. Shelby , Wang Michael Y. 
Published: May 2017

OBJECTIVESpine surgery is complex and involves various steps. Current robotic technology is mostly aimed at assisting with pedicle screw insertion. This report evaluates the feasibility of robot-assisted pedicle instrumentation in an academic environment with the involvement of residents and fellows.METHODSThe Renaissance Guidance System was used to plan and execute pedicle screw placement in open and percutaneous consecutive cases performed in the period of December 2015 to December 2016. The database was reviewed to assess the usability of the robot by neurosurgical trainees. Outcome measures included time per screw, fluoroscopy time, breached screws, and other complications. Screw placement was assessed in patients with postoperative CT studies. The speed of screw placement and fluoroscopy time were collected at the time of surgery by personnel affiliated with the robot’s manufacturer. Complication and imaging data were reviewed retrospectively.RESULTSA total of 306 pedicle screws were inserted in 30 patients with robot guidance. The average time for junior residents was 4.4 min/screw and for senior residents and fellows, 4.02 min/screw (p = 0.61). Among the residents dedicated to spine surgery, the average speed was 3.84 min/screw, while nondedicated residents took 4.5 min/screw (p = 0.41). Evaluation of breached screws revealed some of the pitfalls in using the robot.CONCLUSIONSNo significant difference regarding the speed of pedicle instrumentation was detected between the operators’ years of experience or dedication to spine surgery, although more participants are required to investigate this completely. On the other hand, there was a trend toward improved efficiency with more cases performed. To the authors’ knowledge, this is the first reported academic experience with robot-assisted spine instrumentation.
Endoscopic endonasal transsphenoidal surgery using the iArmS operation support robot: initial experience in 43 patients
Authors: Ogiwara Toshihiro , Goto Tetsuya , Nagm Alhusain , Hongo Kazuhiro 
Published: May 2017

ObjectiveThe intelligent arm-support system, iArmS, which follows the surgeon’s arm and automatically fixes it at an adequate position, was developed as an operation support robot. iArmS was designed to support the surgeon’s forearm to prevent hand trembling and to alleviate fatigue during surgery with a microscope. In this study, the authors report on application of this robotic device to endoscopic endonasal transsphenoidal surgery (ETSS) and evaluate their initial experiences.MethodsThe study population consisted of 43 patients: 29 with pituitary adenoma, 3 with meningioma, 3 with Rathke’s cleft cyst, 2 with craniopharyngioma, 2 with chordoma, and 4 with other conditions. All patients underwent surgery via the endonasal transsphenoidal approach using a rigid endoscope. During the nasal and sphenoid phases, iArmS was used to support the surgeon’s nondominant arm, which held the endoscope. The details of the iArmS and clinical results were collected.Results iArmS followed the surgeon’s arm movement automatically. It reduced the surgeon’s fatigue and stabilized the surgeon’s hand during ETSS. Shaking of the video image decreased due to the steadying of the surgeon’s scope-holding hand with iArmS. There were no complications related to use of the device.ConclusionsThe intelligent armrest, iArmS, seems to be safe and effective during ETSS. iArmS is helpful for improving the precision and safety not only for microscopic neurosurgery, but also for ETSS. Ongoing advances in robotics ensure the continued evolution of neurosurgery.
Revisions for screw malposition and clinical outcomes after robot-guided lumbar fusion for spondylolisthesis
Authors: Schröder Marc L. , Staartjes Victor E. 
Published: May 2017

OBJECTIVEThe accuracy of robot-guided pedicle screw placement has been proven to be high, but little is known about the impact of such guidance on clinical outcomes such as the rate of revision surgeries for screw malposition. In addition, there are very few data about the impact of robot-guided fusion on patient-reported outcomes (PROs). Thus, the clinical benefit for the patient is unclear. In this study, the authors analyzed revision rates for screw malposition and changes in PROs following minimally invasive robot-guided pedicle screw fixation.METHODSA retrospective cohort study of patients who had undergone minimally invasive posterior lumbar interbody fusion (MI-PLIF) or minimally invasive transforaminal lumbar interbody fusion was performed. Patients were followed up clinically at 6 weeks, 12 months, and 24 months after treatment and by mailed questionnaire in March 2016 as a final follow-up. Visual analog scale (VAS) scores for back and leg pain severity, Oswestry Disability Index (ODI), screw revisions, and socio-demographic factors were analyzed. A literature review was performed, comparing the incidence of intraoperative screw revisions and revision surgery for screw malposition in robot-guided, navigated, and freehand fusion procedures.RESULTSSeventy-two patients fit the study inclusion criteria and had a mean follow up of 32 ± 17 months. No screws had to be revised intraoperatively, and no revision surgery for screw malposition was needed. In the literature review, the authors found a higher rate of intraoperative screw revisions in the navigated pool than in the robot-guided pool (p < 0.001, OR 9.7). Additionally, a higher incidence of revision surgery for screw malposition was observed for freehand procedures than for the robot-guided procedures (p < 0.001, OR 8.1). The VAS score for back pain improved significantly from 66.9 ± 25.0 preoperatively to 30.1 ± 26.8 at the final follow-up, as did the VAS score for leg pain (from 70.6 ± 22.8 to 24.3 ± 28.3) and ODI (from 43.4 ± 18.3 to 16.2 ± 16.7; all p < 0.001). Undergoing PLIF, a high body mass index, smoking status, and a preoperative ability to work were identified as predictors of a reduction in back pain. Length of hospital stay was 2.4 ± 1.1 days and operating time was 161 ± 50 minutes. Ability to work increased from 38.9% to 78.2% of patients (p < 0.001) at the final follow-up, and 89.1% of patients indicated they would choose to undergo the same treatment again.CONCLUSIONSIn adults with low-grade spondylolisthesis, the data demonstrated a benefit in using robotic guidance to reduce the rate of revision surgery for screw malposition as compared with other techniques of pedicle screw insertion described in peer-reviewed publications. Larger comparative studies are required to assess differences in PROs following a minimally invasive approach in spinal fusion surgeries compared with other techniques.
On the Optical-to-silicate Extinction Ratio as a Probe of the Dust Size in Active Galactic Nuclei
Authors: Shao Zhenzhen , Jiang B. W. , Li Aigen 
Published: May 2017

Abstract
Dust plays a central role in the unification theory of active galactic nuclei (AGNs). Whether the dust that forms the torus around an AGN is micron-sized, like interstellar grains, or much larger, has a profound impact on correcting for the obscuration of the dust torus to recover the intrinsic spectrum and luminosity of the AGN. Here we show that the ratio of the optical extinction in the visual band (

) to the optical depth of the 9.7 μm silicate absorption feature (

) could potentially be an effective probe of the dust size. The anomalously lower ratio of

/

≈ 5.5 of AGNs compared to that of the Galactic diffuse interstellar medium of

/

≈ 18 reveals that the dust in AGN tori could be substantially larger than the interstellar grains of the Milky Way and those of the Small Magellanic Cloud, and therefore, one could expect a flat extinction curve for AGNs.
Polarized Kink Waves in Magnetic Elements: Evidence for Chromospheric Helical Waves
Authors: Stangalini M. , Giannattasio F. , Erdélyi R. , Jafarzadeh S. , Consolini G. , Criscuoli S. , Ermolli I. , Guglielmino S. L. , Zuccarello F. 
Published: May 2017

Abstract
In recent years, new high spatial resolution observations of the Sun's atmosphere have revealed the presence of a plethora of small-scale magnetic elements down to the resolution limit of the current cohort of solar telescopes (∼100–120 km on the solar photosphere). These small magnetic field concentrations, due to the granular buffeting, can support and guide several magnetohydrodynamic wave modes that would eventually contribute to the energy budget of the upper layers of the atmosphere. In this work, exploiting the high spatial and temporal resolution chromospheric data acquired with the Swedish 1 m Solar Telescope, and applying the empirical mode decomposition technique to the tracking of the solar magnetic features, we analyze the perturbations of the horizontal velocity vector of a set of chromospheric magnetic elements. We find observational evidence that suggests a phase relation between the two components of the velocity vector itself, resulting in its helical motion.