bluuebunny/crossref_metadata_2025 huggingface dataset:
Facile and Fast Detection of Genistein in Derris scandens by Square Wave Voltammetry using a Cobalt(II) Phthalocyanine-Modified Screen-Printed Electrochemical Sensor
Authors: Traipop Surinya , Chuanuwatanakul Suchada , Chailapakul Orawon , Punrat Eakkasit
Published: May 2018

Background:

Recently, Derris scandens, a Thai herbal medicine with anti-inflammatory
activity, is widely used as beverage and supplementary food. When the traditional medicine is a
choice for health therapy, the simple and reliable equipment is required to control the suitable consuming
amount of the active component.

Objective:

To develop the electrochemical sensor for genistein determination in Derris scandens with
high sensitivity and rapid operation.

Methods:

An in-house screen-printed electrochemical sensor consisting of a three-electrode system
was developed for genistein determination. A silver/silver chloride (Ag/AgCl) reference electrode, a
carbon counter electrode and a carbon working electrode were prepared on a 0.3-mm-thick plastic
substrate by the screen-printing technique using conductive ink. The dimensions of each sensor were
2.5×1.0 cm. Only 50 µL of sample solution was required on this device for the determination of
genistein concentration by rapid response square wave voltammetry.

Results:

The oxidation peak of genistein appeared with good response in acidic media at a peak potential
of 0.6 V. Moreover, the signal was enhanced by modifying the conductive carbon ink with cobalt(
II) phthalocyanine. Under the optimized conditions, the linear range was found to be 2.5-150 µM
and the detection limit was 1.5 µM. Moreover, the small volume extraction was successfully developed
without any further pre-concentration. This proposed method was applied to determine genistein
in Derris scandens with satisfying results.

Conclusion:

The proposed method is promising as an alternative method for genistein determination
with facile and fast analysis.
Joint Voltammetry Technology with a Multi-electrode Array for Four Basic Tastes
Authors: Lu Lin , Hu Xianqiao , Zhu Zhiwei
Published: May 2018

Background:

Rapid and easy technology which can mimic the tongue for the simultaneous
perception of several tastes based on sensory analysis and mathematical statistics is sorely needed.

Methods:

Joint voltammetry technology was developed to qualitatively and quantitatively analyze
four basic tastes namely sweetness, saltiness, sourness and bitterness with the multi-electrode array.
Four taste stimuli were corresponded to four tastes. Cyclic Voltammetry (CV), Differential Pulse
Voltammetry (DPV) and Square Wave Voltammetry (SWV) were employed. The original voltammetric
signals were transformed by Continuous Wavelet Transform (CWT) in order to reveal more feature
information for sensing taste stimuli. Joint voltammetry was applied via the combination of voltammetry.
The data of feature points from the transformed signal as the input were used for neural network model.

Results:

Layer-Recurrent neural network (LRNN) could effectively identify the types of stimuli. The
accuracies of the training set and test set by joint voltammetry were both higher than that of regular
voltammetry, confirming that Back Propagation neural network (BPNN) could quantitatively predict
single taste stimulus of the mixture.

Conclusion:

Joint voltammetry technology had a strong ability to sense basic tastes as human tongue.
Synthesis and Characterization of L-Lysin Coated Iron Oxide Nanoparticles as Appropriate Choices for Cell Immobilization and Magnetic Separation
Authors: Raee Mohammad Javad , Ebrahiminezhad Alireza , Ghoshoon Mohammad Bagher , Gholami Ahmad , Ghasemi Younes
Published: May 2018

Introduction:

Cell separation is one of the important steps of purification in downstream processes. Some separation techniques such as centrifugation and filtration are expensive and would affect cell viability. Magnetic separation can be a good alternative for laboratory and industrial cell separation processes.

Methods:

For this purpose, L-lysine coated Iron Oxide Nanoparticles (IONs) were synthesized and used for magnetic separation of Escherichia coli as the most applied microbial cell in biotechnological processes.

Results:

IONs have successfully decorated the bacterial cells and cells were completely separated by applying an external magnetic field.

Conclusion:

This study showed that coating of E. coli cells with IONs could help to isolate cells from culture media without using expensive instruments.
Review on Switches for Power Applications: Macro to Micro
Authors: Robert Femi
Published: May 2018

Background:

Switches are important component in electrical system. The switches needs to
have the advantages of low ON-state resistance, very high OFF-state resistance, high isolation, no leakage
current, less power loss, fast switching, high linearity, small size, arcless and low cost in bulk production.
Also these switches have to be reliable and environmental friendly.

Methods:

In this paper, macro and microswitches for power applications are extensively reviewed and
summarized. Various types of switches such as mechanical, solid-state, hybrid and micromechanical
switches have been used for power applications are reviewed. The importance and challenge in achieving
arcless switching is presented.

Results:

The use of micromechanical switches for power applications, actuation techniques, switching
modes, reliability and lifetime are also reviewed. The modeling and design challenges are also reviewed.

Conclusion:

The applications of micromechanical switches shows that the switches can reduce the
leakage current in battery operated systems and reduce the size of the system considerably.
Factors Affecting Bone Mineral Density Among Snowy Region Residents in Japan: Analysis Using Multiple Linear Regression and Bayesian Network Model (Preprint)
Authors: Suzuki Teppei , Shimoda Tomoko , Takahashi Noriko , Tsutsumi Kaori , Samukawa Mina , Yoshimura Sadako , Ogasawara Katsuhiko
Published: May 2018

BACKGROUND

As the onset of osteoporosis leads to reduced activities of daily living and may result in patients being bedridden, efforts to prevent decreased bone density are necessary. Various studies on the relationship between sex, age, nutrients, and exercise habits and bone mineral density have been conducted to date. However, for snowy region residents, the magnitude of influence of various factors affecting bone mineral density and the influence level have not been clarified.

OBJECTIVE

This study aimed to clarify the degree of influence and factors influencing bone mineral density based on survey results on health conditions and lifestyle habits in heavy snow areas.

METHODS

A total of 354 citizens who visited a drugstore in the target area were included in a study that included using the brief-type self-administered diet history questionnaire on lifestyle and exercise habits. Height, weight, body composition, and bone densitometer values were analyzed using multiple regression to calculate their association with bone mineral density. In addition, a Bayesian network model was used to determine the influence level of each factor as a conditional probability.

RESULTS

Multiple regression analysis revealed that age, sex, fracture, and calcium intake significantly influenced bone mineral density. In addition, the result of Bayesian network analysis suggested that age and sex affected bone mineral density, whereas nutrients and exercise habits might not have a direct impact. However, calcium intake and the T-score were significant factors affecting the presence or absence of fracture experiences, suggesting that adequate calcium intake is essential for preventing fractures.

CONCLUSIONS

In the multiple regression analysis, age, sex, fracture, and calcium intake were selected as factors; however, in the Bayesian analysis, only age and sex affected bone mineral density while nutrients did not. In addition, the fact that calcium intake and the T-score were shown to affect bone fracture history suggests that calcium intake is an important measure that can prevent bone fractures. Overall, these results suggest that measures such as ensuring a bone fracture–free environment and providing nutritional advice for calcium intake can be effective in preventing bone loss.
Jejak Organisasi Asrama Ratnaningsih: Digitalisasi Sebagai Upaya Penyelamatan Arsip
Authors: Bramantya Arif Rahman
Published: May 2018

AbstractRatnaningsih dormitory is a female student dormitory founded by UGM Women's Family Association (PWK UGM) with a capacity of 90 peoples in the 1960s. At that time, Ratnaningsih dormitory was very helpful for the students as a result of large amount of the students studying at UGM. Through the organization of the Family of Ratnaningsih Female Student Dormitory (KAMPR), various activities are recorded and documented. Along the time, KAMPR began to fade away and disperse, so the archives was not maintained and it’s almost lost. One of the saved collection of KAMPR refers to organization's photographs archive. In archival management, the photographs archive included in audiovisual form and it’s required a contextual approach to be descripted in accordance with international standards. Specifically, this study explains the importance of archives for human life and historical consciousness of the students about KAMPR activities through the students learning process of photographs archive management as a non credits practice. The process of digitilalization becomes an important part in the maintain and preservation of photographs archive. Eventually, (virtual) exhibitions is one of the media socialization as an educational tool that can increase public conciousnes in the era of information technology. IntisariAsrama Ratnaningsih adalah asrama mahasiswa putri yang didirikan oleh Persatuan Wanita Keluarga UGM (PWK UGM) dengan kapasitas 90 orang di tahun 1960an. Pada saat itu, asrama Ratnaningsih sangat membantu para mahasiswa sebagai akibat dari banyaknya mahasiswa yang belajar di UGM. Melalui organisasi Keluarga Asrama Mahasiswa Ratnaningsih (KAMPR), berbagai kegiatan organisasi direkam dan didokumentasikan. Dengan berjalannya waktu, KAMPR mulai memudar dan membubarkan diri, oleh karena itu arsipnya tidak terawat dan hampir hilang. Salah satu koleksi KAMPR yang tersimpan mengacu pada arsip foto organisasi. Dalam pengelolaan arsip, arsip foto termasuk dalam bentuk audiovisual dan diperlukan pendekatan kontekstual untuk dapat diseskripsi sesuai dengan standar internasional. Secara khusus, penelitian ini menjelaskan pentingnya arsip bagi kehidupan manusia dan kesadaran sejarah tentang kegiatan KAMPR melalui proses pembelajaran mahasiswa dalam pengelolaan arsip foto sebagai bentuk praktik non SKS. Proses digitalisasi menjadi bagian penting dalam pemeliharaan dan pelestarian arsip foto. Pada akhirnya, pameran (virtual) merupakan salah satu media sosialisasi sebagai alat edukasi yang dapat meningkatkan kesadaran masyarakat di era teknologi informasi.
Record Center Sekolah Vokasi UGM: Analisis Kebutuhan, Rancangan, dan Desain untuk Teaching Industry
Authors: Sari Indah Novita
Published: May 2018

AbstractThe planning of the facilities to support archival technical activities has become a challenge for archivists in the 21st century. This benefits the efficiency of organizational needs and the overall protection of archives owned by an organization such as Vocational College, Universitas Gadjah Mada. This study is important since every organization needs an inactive records storage, but until now Vocational College has not had it yet. This study aims to determine the needs of Records Center in Vocational College and planning Record Center especially the space and equipment needed.The method used in this research is literature research method. Data collection techniques used literature study and participant observation. The literature source is used to obtain the data of planning procedure, while participant observation is used to obtain the primary data related to the need and the volume of the archive.Based on the results of needs analysis, it was found that Vocational College need a Record Center for inactive records storage, student learning facilities and meeting stakeholder needs. The steps to be considered are requirement analysis (calculation of archive volume, space requirement, facility requirement & infrastructure as well as location selection analysis) space planning and layout. The type of Record Center developed is the Offsite Record Center located in Kulon Progo. IntisariPerencanaan sarana prasana menjadi tantangan tersendiri bagi para arsiparis di abad 21. Hal ini memberikan keuntungan bagi efisiensi kebutuhan organisasi dan perlindungan menyeluruh bagi arsip yang dimiliki oleh Sekolah Vokasi, Universitas Gadjah Mada. Kajian ini menjadi penting mengingat setiap organisasi membutuhkan tempat penyimpanan arsip inaktif, namun sampai saat ini Sekolah Vokasi belum memilikinya. Penelitian ini bertujuan untuk mengetahui kebutuhan Record Center di Sekolah Vokasi dan melakukan perencanaan Record Center khususnya ruang dan peralatan yang dibutuhkan.Metode yang digunakan dalam penelitian ini adalah metode penelitian kepustakaan. Teknik pengumpulan data menggunakan studi pustakan dan observasi partisipan. Sumber pustaka digunakan untuk memperoleh data prosedur perencanaan, sedangkan observasi partisipan digunakan untuk memperoleh data primer terkait kebutuhan dan volume arsip.Berdasarkan hasil analisis kebutuhan, ditemukan bahwa Sekolah Vokasi memerlukan Record Center untuk tempat penyimpanan arsip inaktif, sarana pembelajaran mahasiswa dan memenuhi kebutuhan stakeholder. Langkah-langkah yang perlu diperhatikan adalah analisis kebutuhan (perhitungan volume arsip, kebutuhan ruang, kebutuhan sarana & prasarana serta analisis pemilihan lokasi), perencanaan ruang dan layout. Jenis Record Center yang dikembangkan adalah offsite Record Center yang berlokasi di Kulon Progo.
Sistem Informasi Penelusuran Perkara (Sipp): Penelusuran Arsip Berkas Perkara Di Pengadilan Agama Temanggung
Authors: Sholikhah Faizatush , Kumalaeni Dewi
Published: May 2018

AbstractThis paper discusses the implementation of Sistem Informasi Penelusuran Perkara (SIPP) in an effort to facilitate access to the Case Records as a form of court institution accountability. The Case Records considered as the most important part in the process of decision making in the court. However, the problem of loss or inaccuracy in Case Records filing is still occurs. This negligence can harms a person's legal right, such as judicial delays or (even) a wrong decision. Therefore, this study would like to explain the role of electronic systems in facilitating the archive search, both for the community and for the employees of the judiciary. This research uses participative observation method in Pengadilan Agama Temanggung. The results of the discussion are divided into three points. First, SIPP enables quick and easy file access. Second, SIPP can improve the effectiveness of employee performance in Pengadilan Agama Temanggung. Third, SIPP provides protection of legal rights of citizens to obtain justice in the legal process.Keywords: Sistem Informasi Penelusuran Perkara, case records, Pengadilan Agama TemanggungIntisariTulisan ini mendiskusikan implementasi Sistem Informasi Penelusuran Perkara (SIPP) dalam upaya kemudahan akses Arsip Berkas Perkara sebagai wujud akuntabilitas lembaga pengadilan. Berkas perkara merupakan bagian terpenting dalam pengambilan putusan sidang pengadilan. Namun, permasalahan kehilangan atau ketidaktelitian dalam penyimpanan berkas perkara sering kali masih terjadi. Kelalaian ini berakibat pada kerugian hak legal seseorang dalam bentuk penundaan peradilan atau (bahkan) salah putusan. Oleh sebab itu, kajian ini hendak menjelaskan peran sistem elektronik dalam mempermudah penelusuran arsip, baik bagi masyarakat maupun pegawai lembaga pengadilan. Penelitian ini menggunakan metode observasi partisipatif di Pengadilan Agama Temanggung. Hasil dari pembahasan terbagi menjadi tiga poin. Pertama, SIPP memungkinkan akses berkas perkara dengan cepat dan mudah. Kedua, SIPP dapat meningkatan efektifitas kinerja pegawai di Pengadilan Temanggung. Ketiga, SIPP memberikan perlindungan hak legal warga negara untuk mendapatkan keadilan dalam proses hukum.Kata kunci: Sistem Informasi Penelusuran Perkara, arsip berkas perkara, Pengadilan Agama Temanggung
Profil Glukosa Darah, Lipid dan Visualisasi Pulau Langerhans sebagai Imunoreaktor Insulin dan Glukagon pada Pankreas Tikus (rattus norvegicus) Obesitas Menggunakan Teknik Imunohistokimia
Authors: Nesti Dela Ria , Baidlowi Ahmad
Published: May 2018

Obesity is not concerned as specific congenital disorder or derived lipid metabolism disorder recently, but more to bod yinability to handle the increase of nutrition intake caused by behavioral changes. Langerhans Islet is a section in the pancreas which play crucial role in producing and regulating metabolism hormones, insulin and glucagon. This research was conducted to observe blood glucose and lipid profile and to visualize Langerhans Islet in rat pancreas which were induced obesity and compared it with normal ones. Ten of male non-genetic obese four weeks old Winstar rats were divided into two groups, normal (K) and induced with obesity (O). Blood plasma samples were collected to determine blood glucose and blood lipid profile. Pancreas (regio splenic) samples were collected and fixated with Bouin solution, blocked by paraffin and cut with 5 μm thickness. Histology preparats were stained with Hematoxylin-Eosin and Immunohistochemistry (IHC) is determined with Labeled Sterptavidin-Biotin (LSAB) method. Staining is act as visual detector with will be analyzed descriptively and quantitatively. The data of Obesity group showed that blood glucose level is 88.59 ± 1.77 mg/dl, blood cholesterol level is 160.62±3.52 mg/dl, triglycerides level is 98.61±2.66 mg/dl, HDL level is 44.68±2.25 mg/dl and LDL level is 67.51±1.81. Pancreas’s topography in obese group spread into three regions, which are: gastrium, duodenum and lien. Langerhans Islet morphology shaped oval and polygonal also surrounded by fine filaments and blood capillary. Insulin and glucagon immunoreactive cell’s morphology in obesity group shaped irregular polygonal with round/oval nucleus placed in central/peripheral. Langerhans Islet’s in obesity group has diameter (154.38±65.56) μm, circumference (373,51±146,69) μm and volume 3241105.96 μm3. Obesity induced rat showed the increase in cholesterol level, triglycerides level, LDL level, blood glucose level and Langerhans Islet’s diameter, volume and circumference compared to normal ones (P<0.05). Decrease of HDL, topography and morphology of pancreas in obesity induced rat did’t showed significant changes compared to normal ones.
Perancangan Sistem Hidrolik pada Unit Mobile Core Sampler
Authors: Nusa Fitria Adhi Geha , Sugiyanto Sugiyanto
Published: May 2018

Sugarcane core sampler is a plantation equipment sector which collect sugar cane samples and determining of rendemen in sugarcane. Sugarcane core sampler is a new product made by PT. United Tractors Pandu Engineering to solve problem about determining of individual rendemen in sugarcane at sugar mill. In operation Sugarcane Core Sampler uses a hydraulic system as the prime mover, either to raise the platform, take samples of cane and push it out of the probe cylinder. In order for the hydraulic system to work optimally, it is necessary to design and calculate the specification of components to be used on tilting cylinders, ejector, hydraulic pump, and reservoir (hydraulic tank). It also conducted a discussion of the difference between the Core Sampler Sugarcane fixed and mobile models. From the calculation results obtained inside diameter tilting cylinder is Ø100 mm with rod cylinder Ø56 mm, inside diameter of ejector cylinder is Ø32 mm with rod cylinder Ø1 8mm. At the biggest pump flow required is 51.81 lpm and displacement 43 cc/rev, from result of calculation hence specified pump which used is pist on pump type with displacement 41 cc/rev. For hydraulic tank capacity requiredon all hydraulic systems is 177 liters.
Analisis Spasial Bencana Longsor Bukit Telogolele Kabupaten Banjarnegara Menggunakan Data Foto Udara UAV
Authors: Andaru Ruli , Santosa Purnama Budi
Published: May 2018

Spatial data is a very important role in emergency command and disaster management, before, during or post disasters. When a disaster occurs, the currently geospatial information is very needed: where the center of the disaster, the area affected, the volumetric of the landslide, what facilities are damaged, and determine the location of temporary shelters. This study examines and analyze the landslide in Banjarnegara 2014 before and after the landslide using Peta Rupa Bumi Indonesia (RBI) and the UAV Aerial Photos (Unmanned Aerial Vehicle). Data before the landslide obtained from RBI, while data after landslide obtained by performing aerial photography using fixed-wing UAV in December 2014 and August 2015. These aerial photos processing with photogrammetry to produce digital orthophoto and DEM (Digital Elevation Model). Orthophoto and DEM data is used to perform geospatial analysis in both 2D and 3D. 3D analysis obtained from the extraction of DEM elevation map data values appearance of the earth (RBI) and the UAV Aerial Photo. Analysis was conducted on the four components: contouring, terrain profile/cross section, slope/gradient, and volumetric (cut and fill). Readiness management of geospatial data and information is necessary to minimize losses and speed up the process of rehabilitation and reconstruction in the areas affected by the disaster. With this spatial analysis, the estimated of volume of landslides, mapping the facility affected, and the manufacture of the soil profile (high landslide, landslide affected area) can be performed quickly and accurately.
Hidangan Buffet di Regular Event “Ramayana Night Market” Hotel Hyatt Regency Yogyakarta
Authors: Rahayuningsih Handayani , Aditya Bramanti
Published: May 2018

Hyatt Regency Yogyakarta has strategies to increase the number of visitors to the hotel. One of the strategies made by Hyatt Regency Yogyakarta regular event “Ramayana Night Market" which is held every Saturday night.  The purposes of this research are to know the buffet menu and the layout of buffet in regular event “Ramayana Night Market” at Kemangi Bistro Hyatt Regency Yogyakarta. This research used observation, interview, and documentation techniques to collect the data. The results showed that the menu in regular event “Ramayana Night Market” are presented on the long table buffet and ranged from appetizer, main course, and dessert. Regular event “Ramayana Night Market” serve traditional food as concept. The layout of the buffet at regular event “Ramayana Night Market” is made to grouping the menu based on the type (appetizer, main course, and dessert) to make it easy for the customers to take the food from the buffet.
The Fun Food Barbeque as a Product Innovation of the Food and Beverage Department, the Neo+ Awana Hotel, Yogyakarta
Authors: Iban Carlos , Arismagita Arismagita
Published: May 2018

The growth of the hotel business in Yogyakarta is currently increasing up. Based on data from the Association of Indonesian Hotels and Restaurants, the total of new hotels to be built in Yogyakarta reaches 110 hotels. With reference to these growth figures, hospitality management is currently not only focused on providing accommodation, but also going further to selling other hotel products, such as food and beverages. This research took a case study about the product innovation of Neo + Awana Hotel Yogyakarta, with a developing event called "Fun Food Barbeque". The method used is descriptive qualitative with primary data collection using participant observation and interviews. The results shows that the first implementation of the Barbeque Fun Food event is not optimal, because guests are not interested in western food and also the menu has many things to offer. With the changing innovation of barbecue products into fusion food with a menu that is a blend of Indonesian food with western food, the Fun Food Barbeque event becomes more interesting.
Paket Wisata Bagi Difabel Di Yogyakarta
Authors: Handoyo Febri , Sholihah Aufi Nidau , Novitariasari Anggit , Hani Ashila Fitra , Firdausa Qonita Putri , Rahayuningsih Handayani
Published: May 2018

Yogyakarta is the one of the biggest tourist destination in Indonesia. Domestic and Foreigner tourist come to this city every year in big number. Yogyakarta has so many tourist destinations, for example: Keraon Yogyakarta, Sambisari Temple, Taman Pintar, Malioboro, etc. Because of that, Yogyakarta need travel agents to makes every tourist easier enjoy their trip, and the number of travel agents in Yogyakarta has growth every year. Tourist who come to Yogyakarta is not only normal people, but also people with disability, they also have same chance to do tourism activity and travel agents should accommodate it. The purpose of the research is to know how far the travel agents in Special Region of Yogyakarta can create tour package for people with disabilities. The research also explained about how many local tourists and international tourists who come to Yogyakarta every year. From that data, we know how many markets for tour package in Yogyakarta. The methods used in the research is qualitative method. The writers collected the data by interview, literature study, and observation. The subject of the interview is people with disability, government, and the management of the tourism destination. The writers also compare the result from the interview with the fact in the field. From the result of the research the writers can conclude tour package that has been offered by travel agents in Yogyakarta is not friendly for people with disabilities.
Manajemen Operasional Paket Wisata City Tour Surakarta di PT. Kirana Surya Gemilang Yogyakarta (Studi Kasus Rombongan Ikatan Wanita Bank Yogyakarta)
Authors: Atmaja Edwin Hastawi
Published: May 2018

Tourism is one reliable sector in Indonesia. It’s great contribution for being the second place of the biggest source foreign exchange after oil and gas. This final assignment report is to eximine about the operational management city tour package of one travel agent in one tourist city in Indonesia. This research is purposed to know details the operational management of city tour package in Kirana Tour Yogyakarta. This research used the cualitative method with participatory in collecting data. So with participatory research,researcher could analyze the problems of this research lively. This reseach showed that the operasional management of city tour package could be seen from how the way to answer or react what the consument want, counting technic of basic cost, tour perform and the evaluation after finishing the tour. Kirana Tour was success to build consument satisfication by creating operational management.
Problemas axiológicos y éticos de la tecnociencia
Authors: Olivé León
Published: May 2018

Resumen. En el siglo xx surgieron nuevos sistemas de generación de conocimiento y de intervención en la realidad cuyas estructuras de normas y valores son diferentes a las que tienen los sistemas científicos y tecnológicos tradicionales. Por su intenso impacto social, cultural, económico y ambiental, se habla de “la revolución tecnocientífica”. La nanotecnología forma parte de esta revolución. Se examina la estructura axiológica de esos sistemas, así como formas de enfrentar los problemas éticos que plantean.

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Crisis económica, conocimiento y políticas para el desarrollo de la nanotecnología
Authors: Pedreño Muñoz Andrés
Published: May 2018

Durante décadas el Silicon Valley nos anticipaba avances tecnológicos relevantes degran impacto en las economías de todo el mundo y muy especialmente en Estados Unidos. Los avances ligados a los circuitos integrados, los ordenadores personales, el software e Internet han protagonizado unos impactos muy relevantes en aquellas economías que han sabido posicionarse estratégicamente en estos sectores.
Implicaciones de la tecnociencia en la modernidad reflexiva. Complejidad, riesgo y democracia
Authors: Tafoya Edgar
Published: May 2018

El objetivo del presente artículo consiste en analizar la relación problemática entre la ciencia, la tecnología y la política en el escenario de las sociedades complejas, como soporte crítico que permita dar cuenta de las implicaciones de la tecnociencia en el contexto general de la modernidad reflexiva. De manera particular, el trabajo pretende avanzar en la comprensión de la relación contradictoria, tensa y ambivalente que se expresa de manera contemporánea entre la democracia y la tecnociencia, al generar un alto grado de complejidad social, incertidumbre y riesgo. Se trata de considerar, como problema central, si puede haber un modo democrático de planificar, evaluar y regular el desarrollo tecnocientífico o, de asumir como un hecho políticamente relevante, que la tecnociencia es intrínsecamente antidemocrática.
El nitruro de galio y sus aleaciones: ¡y se hizo la luz… azul!
Authors: Tutor Sánchez Joaquín Darío , Bruno Alfonso Alexys
Published: May 2018

El estudio de los dispositivos semiconductores emisores de luz azul ha sido un tema de trascendental importancia tanto desde el punto de vista científico como tecnológico. En el presente artículo se presta especial atención al desarrollo científico y tecnológico de los diodos emisores de luz y los diodos láser basados en la tecnología del nitruro de galio. Las principales propiedades del nitruro de galio y dos de sus aleaciones, el nitruro de indio-galio y el nitruro de aluminio-galio, se presentan cualitativamente. Una breve introducción a las nuevas fuentes de luz basadas en los dispositivos semiconductores emisores de luz sirve de base argumental para hacer una breve reseña histórica de la investigación, el desarrollo y la innovación llevadas a cabo por Isamu Akasaki, Hiroshi Amano y Shuji Nakamura que dieron como resultado el diseño, construcción y posterior comercialización de los diodos emisores de luz azul y láser de luz azul. Finalmente, se hace una valoración de la trascendencia social, económica y medioambiental del los dispositivos emisores de luz con base en la tecnología del nitruro de galio.
Protegiendo fármacos con nanomateriales inteligentes
Authors: Loera Serna Sandra , Ruiz Angeles Jazmín , Flores Moreno Jorge , Soto Portas Lídice
Published: May 2018

La salud humana se enfrenta constantemente a nuevas amenazas ante las cuales es indispensable que los medicamentos actúen rápidamente. Por ello, en la actualidad se buscan nuevas formas de administración y liberación de fármacos utilizados en el combate de ciertas enfermedades. La implementación y desarrollo de nanomateriales para actuar como trasportadores y dosificadores se ha convertido en una línea de investigación a nivel mundial. En este contexto, se han probado diversos tipos de materiales como son: las nanopartículas poliméricas, los polímeros conjugados, los liposomas, las micelas, las dendritas, los nanotubos de carbono y las nanoesferas o nanocajas (poliméricas o metálicas), que en ocasiones, no son los mejores candidatos para trasportar un fármaco de manera eficiente y segura. En este trabajo se pone en evidencia la necesidad de desarrollar nuevos materiales, con características especificas, como las redes metal orgánicas, MOF por sus siglas en inglés (metal organic framework). Las MOF constituyen un grupo de materiales cuyas propiedades pueden ser reguladas según se requiera en cada aplicación. Desde el punto de vista estructural, el diseño de las MOF depende del centro metálico y el ligando orgánico que las constituyen, los cuales pueden aportar características fisicoquímicas acordes al fármaco que se desee encapsular, para luego ser liberado en el organismo. Estos materiales pueden ser sintetizados de manera sencilla a un bajo costo; además, sus propiedades pueden modularse desde la síntesis o bien pueden funcionalizarse, todas estas características constituyen ventajas que podrían superar a los materiales existentes.
El resurgimiento del Estado Alemán
Authors: Hoyo Arana José Luis
Published: May 2018

Artículo que aborda el resurgimiento del Estado alemán, fundamentalmente en el terreno político y secundariamente en el económico. Se revisan los cambios políticos del presente y se recurre a la historia e idiosincrasia del pueblo alemán para explicar su desarrollo. Se alude a la caída del muro de Berlín como una síntesis de la cual podría perfilarse no el fin de la historia, sino el fin de la utopía socialista.
China y el viento del Oeste
Authors: Salazar Valiente Mario
Published: May 2018

Visión político-económico-social que recorre la China de Mao hasta la actual apertura del Este; las diferencias en torno a los cambios del socialismo real y la posición de este país ante la comunidad internacional.
Los funerales de la dictadura rumana. (Cronología 1989-1990)
Authors: Gómez Leyva Ciro
Published: May 2018

Cronología de los acontecimientos en Rumania de 1989 a 1990, con base en el seguimiento de la información publicada por el periódico La Jornada.
La revolución de terciopelo en Checoslovaquia. (Cronología 1988-1990)
Authors: Zamudio Martínez Rosa
Published: May 2018

Cronología de los acontecimientos ocurridos en Checoslovaquia de 1988 a 1990, en la llamada Revolución de Terciopelo. Seguimiento de la información publicada por el periódico La Jornada.
¿Cambiar la vida o cambiar el hombre?
Authors: De Rougemont Denis
Published: May 2018

Documento escrito en 1935 que sitúa los axiomas de Marx y Engels sobre el plano de la historia, comparando la dictadura de Stalin con los regímenes fascistas. Propone la continuidad de la actitud comunista, pero con la voluntad de cambiar el mundo, de transformar la historia con movimientos legítimos y creadores. F.I autor hace una confrontación entre las propuestas de los cristianos (Evangelio) y la doctrina marxista.
El papel de la radiodifusión cultural en el desarrollo municipal
Authors: Baena Paz Guillermina
Published: May 2018

Reflexiones en torno a la radio y las contribuciones de las emisoras de tipo cultural. La preparación profesional del equipo de trabajo, la creatividad y la imaginación de los programadores, guionistas y productores, la capacidad para captar la idiosincrasia popular, su cotidianeidad y sus vivencias, son elementos trascendentales para una radio cultural en los municipios.
Uso de la función Solver de Excel para el cálculo de la velocidad de corrosión de acero al carbono en una solución de NaCl al 3,5 % saturada de oxígeno, O2 Un tutorial práctico
Authors: Alfaro Marco , Alfaro Ignacio
Published: May 2018

Excel es un programa informático desarrollado y distribuido por Microsoft Corp. que permite realizar tareas contables y financieras mediante hojas de cálculo, forma parte de Microsoft Office y es utilizado en gran parte del mundo. Permite realizar muy diversas operaciones, incluye el complemento Solver. Con este complemento es posible el ajuste de datos experimentales utilizando funciones lineales y no lineales. Estas tareas son comunes en los prácticos de laboratorios de cursos de físicoquímica y electroquímica, específicamente en el ajuste de datos experimentales de curvas corriente-potencial a modelos cinético electroquímicos no lineales. Estos modelos permiten el cálculo de la velocidad de corrosión de acero al carbono en condiciones de cinética de control mixto. Este tipo de experiencias teórico-prácticas de laboratorio le permiten al alumno integrar conocimientos de físicoquímica y electroquímica con conocimientos de matemáticas y computación.
Ecuación de estado superficial de Volmer líquidos simples y tensoactivos
Authors: Alanis-García Mario A. , Gracia-Fadrique Jesús
Published: May 2018

La ecuación de estado superficial de Volmer, pertenece a la familia de ecuaciones de estrado de van der Waals; la desviación respecto a la idealidad contempla un único parámetro: el área molecular. Acoplada a la ecuación de adsorción de Gibbs, se obtiene la correspondiente ecuación de estado en función de la composición de la fase volumétrica bajo condiciones de dilución infinita o saturación.
Estilos de aprendizaje preferidos por los estudiantes de nutrición
Authors: G. Campos Martha , Campos Ricardo
Published: May 2018

Un modelo de estilos de aprendizaje clasifica a los estudiantes de acuerdo a donde ellos se ajusten a un número de escalas correspondientes a la forma en que reciben y procesan la información.  El objetivo del estudio fue identificar las preferencias de estilos de aprendizaje en los estudiantes de licenciatura en nutrición. Se llevó a cabo un estudio descriptivo y transversal. Los estudiantes fueron registrados de cuatro experiencias educativas: I) proyectos de investigación, II) desnutrición y síndromes carenciales, III) química de alimentos sección A, y IV) química de alimentos sección B. Para evaluar las preferencias de estilo de aprendizaje se administró un cuestionario de 44 entradas, de auto-respuesta que determina las preferencias en cuatro pares de dimensiones según el modelo de Felder y Silverman: sensorial/intuitivo, visual/verbal, activo/reflexivo, y secuencial/global. Para analizar las respuestas del cuestionario se desarrollaron análisis estadísticos descriptivos y de χ-cuadrada, se usó el software R y R Commander versión 1.8-3, y un nivel de confianza de 95 %. Se concluye que los estilos activo, sensitivo, visual y secuencial fueron predominantes en los estudiantes de licenciatura en nutrición. Los estilos sensitivo y secuencial fueron los más sobresalientes en las preferencias de los estudiantes al analizarlos por experiencia educativa.
EDITORIAL
Authors: Martínez Vázquez Ana
Published: May 2018

La educación química es un área compleja y diversa que abarca muchas ramas del quehacer científico. Enseñarle a los estudiantes conceptos y cómo razonar con ellos es quizás una de nuestras tareas más difíciles...
PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH DAN REPRESENTASI MULTIPEL MATEMATIS DENGAN MENGGUNAKAN MODEL PEMBELAJARAN KUANTUM
Authors: Inayah Sarah
Published: May 2018

Mathematical problem solving and multiple representation ability is essential to develop. So it needs a study to facilitate the students to be active, interesting and challenging for students to think and therefore contributes to the students ability to represent, understand the material during learning process and solve mathematical problems. Quantum learning model puts students on comfortable and pleasant condition so that students can play an active role in the learning process and student expected to get the flexibility to bring their own representation and easy to solve the problem. The main objective of this study was to determine the improvement in the mathematical problem solving and multiple representation of students who obtain quantum learning model and students who received conventional learning, as well as to determine the relationship between the mathematical problem solving and multiple representations. This research is a quasi experimental with non equivalent control group design. The population of this study are all students of class VII with two classes of them as samples. The research data obtained through problem-solving ability and multiple mathematical representations test. The results showed that: (a). Quantum learning model can improve the mathematical problem solving and multiple representations ability, (b). there is a relationship between the mathematical problem solving and multiple representations ability.
IDENTIFIKASI KESULITAN BELAJAR MAHASISWA MELALUI MODEL PROJECT BASED LEARNING
Authors: Firmasari Siska
Published: May 2018

The purpose of this study was to know the learning difficulties experienced by third grade students of Mathematics Education Study Program during Project Based Learning (PjBL) implementation on Evaluation of Mathematics’ Learning Process and Result. This research used descriptive method with qualitative approach because it is relevant from the initial process to the final product, and research instrument used is in the form of interview sheet. The sample of this research is 68 third grade students of Mathematics Education Study Program of Faculty of Teaching and Educational Sciences, University of Swadaya Gunung Jati Cirebon. The study was conducted in the period of March - July 2016. Based on the results of this study it can be concluded that students' learning difficulties during the implementation of Project Based Learning caused by internal factors, that is lack of motivation, which can be seen from the lack of students in reading and looking for various references related to the material, they rely on one reference book only that used during lectures. This resulted to the lack of understanding in learning the Evaluation Instruments’ Quality which can be seen from the difficulty in classifying evaluation test questions based on Bloom's Taxonomy and arranging scoring guidelines, using validity formula, reliability, item discrimination, and index of difficulty to determine instrument quality, and difficulty in accomplishing the final product.
BAHAN AJAR PADA MATERI GARIS SINGGUNG LINGKARAN DENGAN PENDEKATAN SAINTIFIK UNTUK SISWA SMP
Authors: Sowanto Sowanto
Published: May 2018

This research is motivated by the lack of teaching materials on tangent topic to the circle that is able to facilitate junior high school students through a scientific approach. This research produced teaching materials so-called students' worksheets that can facilitate students. The research used the design research which includes: (1) preliminary design, in this phase the researchers conducted a theory study which followed up by making a Hypothetical Learning Trajectory (HLT); (2) experiment, in this phase, the existing design is tested to the students to investigate the learning process that related to the process of developing students' thinking in situations and learning atmosphere that formed from HLT; (3) retrospective analysis, in this phase, the researchers compare the HLT with the actual student learning process. The results show that the teaching materials that have been developed by considering obstacle learning and preliminary studies are able to facilitate students as a source of support for learning activities.
SADEDDİN KAYNAK’A AİT ŞARKI FORMUNDAKİ ESERLERİN USÛL VE MAKAM AÇISINDAN KARAKTERİSTİK ÖZELLİKLERİ
Authors: ERSOY Gurbet , ŞEN Yavuz
Published: May 2018

Bu çalışmada, Sadeddin
Kaynak’a ait şarkı formundaki farklı makamlarda bestelenmiş eserlerin makamsal
analizleri yapılmıştır. Bu vesileyle, Türk mûsikîsinin bütünü içerisinde
makamsal özellikler, üçlü, dörtlü, beşli, geçki ve çeşniler ortaya konularak
farklı 48 makamdaki melodilerin ölçü bazında işlenmesi ve bu anlamda Türk
mûsikîsi bestekârları arasındaki farklılığın bestekârlık yönünden ortaya
konulması amaçlanmıştır. Araştırma sonucunda;
örneklemi oluşturan 48 eserden, Rast-Nihâvend makamında olan “Aile Yuvasını
Kadındır Cennet Yapan” adlı eserde bestekâr, ilk olarak Rast makamının makamsal
özelliklerini kullanmış daha sonra eseri Nihâvend makamıyla bitirdiği
görülmüştür. Bu tespite göre bestekârın bazı eserlerini başladığı makamla
bitirmediği ve eserlerini makama uygun geçkiler yaparak başka makamlarda
bitirdiği sonucuna varılmıştır. Ayrıca bazı
eserlerinde, makamın seyri ve özelliğinin dışında uygulamalar yaptığı ritimsel
anlamda da değişiklikler yapıp eserlerinde serbest bölümler kullandığı
görülmüştür. Bu eserlerden biri olan; Şedarabân makamındaki “Tenhâlarda
Dolaştık Sevdâ İzinde” adlı eser, Düyek (8/8) usûlünde bestelenmiştir. Fakat
Bestekâr eserin içerisinde Devr-i Hindî (7/8) usûlünü kullanıp daha sonra
tekrar Düyek usûlüne dönmüş ve ritimsel değişiklik yaptığı tespit edilmiştir. Eserlerinde
uyguladığı serbest bölümlere örnek verecek olursak; Şehnâz makamında olan
“Dalda Bir İshak Öter” adlı eserde bestekârın serbest bölüm kullandığı
görülmüştür.

Bunların yanı sıra
Kaynak, farklı makamlarda bestelemiş olduğu eserleri makamsal özelliklerin
dışına çıkarak kullanmayı tercih etmiştir. Bu eserlerden biri olan; Hüseynî makamındaki “Sesini Duydum Geldim” adlı eser
inici-çıkıcı bir seyir özelliği taşıması gerekirken, eserin çıkıcı-inici bir
seyir karakterinde bestelendiği tespit edilmiştir. Bu bağlamda bestekârın,
eserlerini bestelerken makamın dışına çıkarak farklı bir yöntem uygulayıp,
kendi üslûbunu ortaya koyduğu görülmüştür.
ÇAĞDAŞ TÜRK MÜZİĞİNDE HASAN FERİD ALNAR VE “SEKİZ PİYANO PARÇASI” NIN YERİ
Authors: ALAPINAR GENÇAY Çağdaş
Published: May 2018

Hasan Ferid Alnar, Türk
Musıkisi ile iç içe bir ailede büyümüş ve ilk müzik eğitimini bu yönde
almıştır. İleriki yıllarda bu birikimini, çoksesli müzik kuralları ile
sentezleyerek, Çağdaş Türk Müziği’ndeki yerini çok farklı ve değerli kılmıştır.
Hasan Ferid Alnar, “Türk Beşleri” olarak adlandırılan, Çağdaş Türk Müziği’nin
öncü bestecileri ( Cemal Reşit Rey, Hasan Ferid Alnar, Ulvi Cemal Erkin, Ahmet
Adnan Saygun, Necil Kazım Akses) arasında, hak ettiği değeri görememiştir. Hasan
Ferid Alnar’ın bestelerinde, Türk ezgilerinin önemi büyüktür. Makamları, eserlerinde
orjinalliğini yitirmeden, geleneksel Türk Musıkisi etkilerini koruyarak
kullanmıştır. Sekiz Piyano Parçası, bu yaratı özelliğinin en önemli eserleri
arasındadır.
Apresentação
Authors: Toniol Rodrigo , Alberto Steil Carlos
Published: May 2018

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A RELIGIÃO NO ESPAÇO PÚBLICO: O CASO DA ARGENTINA ENTRE LAÏCITÉ E RELIGIOUS FREEDOM
Authors: Roldán Verónica
Published: May 2018

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Authors: - -
Published: May 2018

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ELEIÇÕES GERAIS DE 2014: RELIGIÃO E POLÍTICA NO RIO GRANDE DO SUL
Authors: Oro Ari Pedro , Tavares de Carvalho Junior Erico
Published: May 2018

Este texto efetua um balanço das relações entre religião e política nas eleições de 2014 no Rio Grande do Sul. Mais especificamente, analisa as

aproximações dos candidatos ao executivo estadual com segmentos religiosos, notadamente os evangélicos, bem como as candidaturas de indivíduos que acionaram seus vínculos religiosos na disputa de vagas para a câmara federal e o legislativo estadual. Por fim, será realizada uma breve análise comparativa entre os pleitos de 2010 e 2014 no que se refere às imbricações entre religião e política.
QUANDO A RELIGIÃO FICA PERTO DA POLÍTICA: O CASO DOS CANDIDATOS APOIADOS PELO CATOLICISMO CARISMÁTICO NAS ELEIÇÕES DE 2014 NO BRASIL
Authors: Pinto Procópio Carlos Eduardo
Published: May 2018

Este trabalho procura analisar a relação entre catolicismo carismático e política nas eleições proporcionais de 2014. Seu foco são as candidaturas de Padre Afonso (PV) e Flavinho (PSB), que receberam apoio de setores da Renovação Carismática Católica e da Comunidade Canção Nova na região do Vale do Paraíba/SP/BRA. Apesar de terem recebido apoio religioso, o que este trabalho demonstra é que ao lado dos elementos da religião, essas candidaturas acionaram elementos da política. Na medida em que atuavam sobre esses dois elementos da vida social, essas candidaturas fabricavam-se num movimento multiposicional. Nesse sentido, tanto a ampliação da retórica eleitoral para além dos vínculos originais quanto a justificação dessa ampliação ganham importância. Assim, antes que uma metamorfose da religião em política ou da política em religião, o que se passa é uma tentativa de articulação entre ambas. Nessa articulação, as tensões emergem forçando ressignificações e rearranjos na maneira de conduzir a campanha política, levando os candidatos a movimentarem-se sobre um amplo campo de possibilidades.