Miracle-dz/UniFAR-FTUs huggingface dataset:
Evaluation of Root Extract of Cyphostemma Adenocaule (Vitaceae) for Antioxidant Activity, Brine Shrimp Toxicity, and Antiproliferative Activity against Hela Cervical Cancer Cells

Cyphostemma adenocaule (Vitaceae) is used by traditional health practitioners in northeastern Tanzania, for treatment of cancer but there is no information available regarding its safety and efficacy. This study was conducted to determine the activity of the root extracts against brine shrimps, antioxidant and cytotoxicity against HeLa cancer cells. A (1:1) dichloromethane/ methanol extract of powdered roots was fractionated by vacuum liquid chromatography to obtain petroleum ether, dichloromethane and ethyl acetate fractions, which were tested for toxicity against Artemia salina larvae and antioxidant activity using the DPPH and FRAP assays. The ethyl acetate fraction exhibited the highest toxicity on brine shrimps (LC50 = 3.9 μg/ml), and antioxidant activity with EC50 = 162.88 μg/ml and 100.04 FeμM ECGC equivalent/g dry weight, for DPPH & FRAP assay respectively. Further tests of fraction to the HeLa cervical cancer cells, demonstrated apoptotic cell death with the (IC50 3.4 ± 0.3μg/ml), that was characterized by cell cycle arrest at the M phase, phosphatidylserine externalization, Caspase 3 and 8 activation and time-dependent reduction in mitochondrial membrane potential down to zero after 48 h. The results support claims by THPs, however, more studies using different cancer cell lines, are needed to determine clinical application of the results.
Transponder packaging techniques in radio frequency identification systems

Packaging of RFID transponders at microwave frequencies requires unique materials and innovative methods in order to provide functional, reliable, and inexpensive transponders. Presented are two packaging methods-chip-on-board (COB) and chip-in-board (CIB)-that allow designers to utilize the existing semiconductor infrastructure to achieve a reliable microwave transponder and provide high volume manufacturing capabilities. The CIB technique allows for a thin outline transponder with a unique form factor. For both methods the tag package includes a single chip integrated circuit, a small resonant antenna, chip attach, wire bonding, chip encapsulation, and various substrate materials.
IMPLEMENTASI KURIKULUM 2013 DENGAN MODEL PROBLEM BASED LEARNING UNTUK MENINGKATKAN SIKAP PEDULI LINGKUNGAN DAN PRESTASI BELAJAR IPA MATERI LINGKUNGAN KELAS VII H SMP NEGERI 1 SURAKARTA TAHUN PELAJARAN 2013/2014

Curriculum 2013 which has is aimed to prepare Indonesian to have life skills as an individual as well as citizen who is religious, productive, creative, innovative effective, and capable to contribute to the lives of civilizations, the life of community, nation and world wide civilization has been implemented since Academic Year 2013/2014. The implementation of Curriculum 2013 for Junior High School can be supported by implementing Problem Based Learning Model in order to enable students solve the problems scientifically. Prior reflection to the students learning process of Grade VII H SMP Negeri 1 Surakarta second semester Academic Year 2013/2014 showed the lack of their concern to the environment as the manifestation of second Core Competence and the low knowledge level which is the third Core Competence. This study implementing Curriculum 2013 with Problem Based Learning Model to improve environment science care attitude and student learning achievement. The result of the study shows that all of Core Competence improved in every cycle. The percentage of the improve environment care attitude of student is 59,375% to 71,875% in the first cycle and improved to 87,5% in second cycle. While the student learning achievement in pre cycle is only 68,75% students who have passed 3,00 or more than 75, improved to 78,125% in first cycle and reached 100% in second cycle. Research is focused on environment material. Keywords : Curriculum 2013, Problem Based Learning, Environment Care Attitude, Learning Achievement
Vibration Control of a Long Span Cable-stayed Bridge Tower Using Pendulum Mass Damper

The configuration of long span cable-stayed bridge varies at different construction stages and so does its natural frequencies. The vibration control performance of a multi-stage pendulum mass damper (MPMD), whose natural frequency can be altered by controlling the pendulum wire length, was studied for mitigation of the wind-induced vibration of a long span cable-stayed bridge tower during construction. A theoretical framework for predicting the buffeting response of the coupled MPMD-bridge system was first developed. Four different construction stages of the bridge were selected for study. The effectiveness of MPMD was further examined by an experimental investigation. A 1:100 scale model of the bridge tower together with a two-stage pendulum mass damper were designed and manufactured. Two kinds of excitations, harmonic and white noise excitation, were applied respectively in the lateral direction of the bridge tower (ie in the direction normal to the bridge longitudinal axis), which was considered as the most critical loading direction. The effect of various parameters, including damping ratio, mass ratio, and frequency tuning ratio of the damper, was considered in this study. Both the theoretical and experimental investigations showed that the MPMD can significantly reduce the displacement responses of the bridge tower for the concerned construction stages and the total damping of the tower was enhanced significantly by the MPMD.
Comportamiento hidrológico de una mesocuenca de montaña en el centro oriente de México

*Autor de correspondencia: a Universidad Nacional Autónoma de México, Posgrado en Ciencias de la Tierra, Circuito de Posgrados, Ciudad Universitaria, 04510, Ciudad de México, México, tel. : 55-56-224092, alitzel.guzh@gmail.com b Universidad Nacional Autónoma de México, Centro de Ciencias de la Atmósfera, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México, 04510 México, tel. : 55-56-224089, lyssette.munoz@atmosfera.unam. mx
EVOLUCIÓN Y TENDENCIAS EN EL DESARROLLO DE PRÓTESIS DE MANO

Se presenta una revision sobre la evolucion y retos concernientes al desarrollo de protesis de mano. Se muestran las caracteristicas principales de disenos recientes, a nivel internacional, que incorporan una cantidad considerable de funciones, varios grados de libertad y elevado desempeno fisico. Adicionalmente se presentan algunos resultados obtenidos en Colombia relacionados con la obtencion de modelos y prototipos de protesis de mano. Por ultimo, se presentan varios modelos fisico-matematicos que emulan con el comportamiento mecanico de los tejidos biologicos, y se identifican un conjunto de materiales inteligentes que resultan de interes para la fabricacion de protesis. Se concluye que el desarrollo de estos dispositivos en ambientes de ingenieria simultanea, donde puedan integrarse los ultimos resultados sobre bionica, control, automatizacion, nuevos materiales y tecnicas de fabricacion, posibilitara en un futuro cercano el desarrollo de protesis de mano con caracteristicas indistinguibles al de una mano real, tanto en funcionalidad como en apariencia.
SPIDAR and virtual reality

This paper presents the history and evolution of the haptic interface system SPIDAR throughout the last decade. Since its first version in 1989, SPIDAR system was adopted and customized to various kinds of virtual environments to meet user and task's requirements. Ranging from a simple pick and place task to more complicated physical based interactions, SPIDAR has emerged as a distinguished haptic interface capable of displaying various aspects of force feedback while having the following advantages: 1) scalable system, with simple modification it can fits to most of the required working space in virtual environment. Desktop, workbench, human-scale, and networked versions have been developed to accommodate different demand of VR applications. 2) String based, its usage of string based technology to track user hands or fingers position as well as displaying back force feedback. 3) Transparent system, It keeps the working space transparent and do not obscure the visual display system. SPIDAR's quality of haptic feedback continued to improve through time to reach the current standard, and in line with other major haptic systems, of accurate measurements and smooth force display.
Empathy and burden in caregivers of patients with schizophrenia spectrum disorders

Background The caregiver of patients loads different kind of burdens, including emotional distress. Aims of this study were to evaluate the burden and empathy of caregivers of patients with schizophrenic spectrum disorders and to evaluate if these dimensions are correlate between them and/or with selected variables of caregivers and assisted patients. Methods We selected a sample of 60 caregivers (34 women and 26 men), who assisted patients with schizophrenia spectrum disorders treated in our local Community Mental Health Center for a 1-year minimum period. We administered to our sample two scales, Zarit Burden Interview (ZBI) and Balanced Emotional Empathy Scale (BEES) and collected data of caregivers and their assisted patients in a 3-month period. Results We reported a mean ZBI score of 49.68 (± 15.03 SD) and a mean BEES score of 14.35 (± 9.05 SD), indicating the perception of moderate-severe burden and a low level of empathy, respectively. The analysis of internal consistency confirmed the good reliability of both ZBI (Cronbach's alpha = 0.90) and BEES (Cronbach's alpha = 0.77). The correlation between the two scales was not statistically significantly at Spearman test. Only a few variables, the living environment ("do not live with the patient") indirectly, and the Clinical Global Impression-Severity (CGI-S) score of assisted patients, in a direct way, were statistically significantly correlated with ZBI score. We highlighted only a positive statistically significant correlation between the fifth dimension score of BEES ("Tendency to avoid emotional involvement with fragile people") and CGI-S and GAF (Global Assessment of Functioning) scores of assisted patients. Conclusions Our study highlights that the burden of caregivers of patients with severe psychiatric disorders is similarly high to that of organic or neurologic disorders and is associated with low emotional empathy experienced by caregivers, probably due to a defensive psychological mechanism.
STRATEGI PENGEMBANGAN BISNIS PADA DEPOT SELARIS DENGAN PENDEKATAN BUSINESS MODEL CANVAS

Penelitian ini bertujuan untuk memformulasikan strategi pengembangan bisnis yang tepat dan dapat diterapkan bagi Depot Selaris menggunakan Bisnis Model Kanvas. Metode penelitian yang digunakan adalah analisa deskriptif kualitatif. Pengumpulan data dilakukan dengan menggunakan teknik wawancara. Hasil penelitian ini menunjukkan bahwa elemen bisnis model Depot Selaris yang paling kuat adalah key partnerships, diikuti elemen value propositions . Dari hasil analisis SWOT untuk pengembangan model bisnis, perusahaan disarankan untuk mengembangkan hubungan dengan pelanggan. Selain itu, perusahaan disarankan juga untuk memperbaiki key resource .
On the generation of quadrilateral element meshes for general CAD surfaces

This thesis deals with the automatic generation of meshes of quadrilateral elements over surfaces of a general solid using an advancing front approach. The algorithm is based on paving, a method proposed by Blacker et al. to mesh planar surfaces. We adopt a CAD integration approach and use AutoCAD-12 to generate the solid and the AutoCAD Development System (ADS) as the interpreter and environment to code the algorithms. The ADS environment, namely the Application Programming Interface library (API), provides the geometric functions to work with the surface during the quadrilateral mesh generation. Finally, we investigate a three-dimensional version named plastering for automatic hexahedral mesh generation. The investigation portrays some limitations of the method which leads us to propose a scheme to discretize a general geometry with hexahedral. elements employing grid superposition. Thesis Supervisor: Klaus-Jiirgen Bathe Title: Professor of Mechanical Engineering
Social Networks and the Language of Greek Tragedy

Using the linguistic dependency treebanks and digitized texts created by the Perseus Digital Library, we are creating social networks for a collection of Greek tragedies that allow users to visualize the interactions between characters in the plays. Because the number of characters who appear on stage in Greek tragedy is limited, most of these social network diagrams fall into a few basic types. The most interesting aspect of these networks are, therefore, the edges that connect the nodes within the graphs. The linguistic data used to label or even create these edges becomes the jumping off point for visualizing and exploring the language of Greek tragedy.
Investigation of Taylorella equigenitalis from thoroughbred stallion genital swabs by direct polymerase chain reaction and culture method

Bu calismada 25 safkan yaris aygirindan alinan uretral fossa ve sinus svaplarinda, direkt polimeraz zincir reaksiyonu(direkt-PCR) ve klasik kultur yontemleri ile kontagiyoz equine metritis (CEM)’in etkeni olan Taylorellaequigenitalis varligi aranmistir. Alinan orneklerden T. equigenitalis izole edilemedigi gibi direkt-PCR yontemi ile detespit edilememistir.In this study, classical culture method and a direct polymerase chain reaction (direct-PCR) assay was appliedto urethral fossa and sinus swabs taken from 25 thoroughbred stallion racehorses to detect Taylorella equigenitalisresponsible for contagious equine metritis (CEM). T. equigenitalis was not isolated from any of the samples andwas not detected by direct-PCR.
Accurate characterization of multimode interference-based devices

In this paper a rigorous numerical scheme has been presented for the analysis of a practical multimode interference-based device. The numerical results have been compared with published experimental results to show the validity of the numerical schemes presented. The vector finite element method has been employed to calculate the propagation constants and the least squares boundary residual method has been employed to calculate the excited modal coefficients at the discontinuity interfaces. The power transfer curve is shown for a 3 dB coupler and a 1 X 4 way power splitter is also investigated. The excess loss relating to the power splitter has been shown to be reasonably small around the design length. Finally a 2D multimode interference-based power splitter has been studied, and results reported.
Deep Learning Mechanism Augmented with 16-Hybrid Cellular Automata for Secondary Structure Prediction

A protein plays various role in our human body like cellular development, reproduction, endurance and regulation of human body. Based on the structure of the genes we can extract lots of information regarding the human body. It is very easy to extract lots of information from a structure than a sequence. Identifying the protein structure helps in drug design. The secondary structure, to some extent tells about the effect of amino acid changes and explains the reason for the disease of an individual. A doctor can suggest medicines without any side effects to a patient based on the protein structure acquired from DNA. We have developed a classifier DL-16-MACA which can predict the secondary structure of an amino acid sequence of different lengths. In this prediction we have considered three classes Helix (H), Strands (E), Coiled(C). For Helix class the sensitivity, percentage accuracy is 0.923 and 90.6% respectively. For Strands class the sensitivity, percentage accuracy is 0.852 and 85.55%respectively. For Coiled class the sensitivity, percentage accuracy is 0.789 and 77.1% respectively. The percentage accuracy when tested with PDB datasets is 85.4% which substantially comparable with existing literature.
Characteristics and applications of dual-gate FET

In this paper, the DC characteristics and working model of a dual-gate FET are explained. A microwave self-oscillating mixer with local frequencies stabilization by dielectric resonators is designed and developed using a dual-gate FET. A high performance device is obtained. The experimental results have shown that at S-band, a conversion gain of 5.0 dB and a noise figure of 9.2 dB are obtained.
Unconventional algorithm for emitter position location in three-dimensional space using data from two-dimensional direction finding

Various papers have been published concerning emitter position location using angle measurements. The so called triangulation algorithms were formulated mostly for position estimation on the plane. These algorithms are widely applied in Electronic Intelligence (ELINT) and Electronic Warfare (EW) operations. Conventional (classical) algorithms for emitter position determination in three-dimensional space use the horizontal bearing (azimuth of an emitter) and the vertical bearing (elevation angle) obtained from real measurements. Such algorithms need these measurement magnitudes without any primary processing. The unconventional (non-classical) algorithm presented here uses the both above-mentioned bearings, however these real observations are linked up within the singular pseudo-observation called the generalized bearing (or slant azimuth). Thus real angle measurements are preprocessed here. Such approach yields double reduction of matrix and vector dimensions as well as provide homogeneity or measurement equations and in consequence give homogeneous form of the gradient matrix. This algorithm shows good statistical and computational properties. It provides slightly higher accuracy of position estimation and requires essentially smaller storage for data acquisition than the conventional one. <<ETX>>
Indian seafarers' experiences of ill-treatment onboard ships

This thesis investigates seafarers’ experiences of ill-treatment onboard ships. A sociological approach to ill-treatment is adopted, with a focus on characteristics of the work environment onboard which affect seafarers’ experiences of and responses to ill-treatment. A qualitative approach was employed to understand seafarers’ perceptions of ill-treatment. Semi-structured interviews based on the Negative Acts Questionnaire were conducted with seafarers and managerial personnel from one multinational and one Indian company. The seafarers were drawn from all ranks. Thematic analysis of the data revealed that seafarers’ perceptions, experiences and responses to ill-treatment were heavily influenced by characteristics of the work environment, including industry and company norms such as short-term contracts, the hierarchy, onboard, distance management and HR policies and training. Seafarers encountering ill-treatment can choose to exit their situation, raise their voice or remain silent. The findings showed that while support structures such as grievance procedures and union membership existed for seafarers experiencing ill-treatment, the majority of seafarers chose to remain silent because of complex interactions between a variety of workplace features. Fears included job insecurity, concern for career advancement, fear of blacklisting and personal financial concerns. Those seafarers that did choose to escape their situations found that there could be repercussions on their finances and their career ambitions, or that exercising their voice resulted in a reshuffle of seafarers but nothing of import changed. The professional socialisation process and culture onboard the ship are very important in influencing seafarers’ perceptions of ill-treatment, and play a role in the occurrence of preventative behaviour and use of coping mechanisms. In addition, the industry norms of short-term contracts, the purported manning crisis and a race to the bottom mentality force seafarers to be highly insecure in their jobs and encourage them to accept their situation until they can escape it.
Current Issues in Expert Systems

Early work in artificial intelligence was mainly concerned with general problem-solving procedures. The application of these procedures to large "real world" problems was at first unsuccessful. Major progress was later made by allowing the problem-solving process to make use of separate, explicit sources of knowledge, concerning highly specific problem domains. This gave rise to a first generation of expert knowledge-based systems. The next step was to improve the power and flexibility of the various knowledge-processing techniques and to develop effective software and hardware architectures to implement them efficiently. This major challenge remains at the core of many of the "fifth-generation" computer projects.
Probabilistic Fuzzy Logic Signal and Ramp Metering at a Diamond Interchange

AbstractIn this paper, a probabilistic fuzzy logic control is developed for the signalized control of a diamond interchange to improve the traffic flow on the surface streets and highways. The signal phasing, green-time extension, and ramp metering are decided in response to real-time traffic conditions. The probabilistic fuzzy logic for diamond interchange (PFLDI) includes the following three modules: probabilistic fuzzy phase timing that controls the green-time extension process of the current running phase, phase-selection logic that decides the next phase based on the presetup phase logic by the local transport authority, and probabilistic fuzzy ramp metering that determines the on-ramp-metering rate based on the traffic conditions of the arterial streets and highways. The advanced interactive microscopic simulator for urban and nonurban network software was used to model the diamond interchange and measure the effectiveness of the proposed PFLDI algorithm. The performance of the PFLDI was compared wi.
Hetero-structure p-i-n solar cell with high efficiency

Successful harvesting of solar energy is achieved by using tandem solar cells. Stacking one on the other different p-n diodes of semiconductor materials with various band gaps is widely used design. In terms of band gap engineering, cascaded device is the one when energy gap of the materials varies within the same device. The best example of cascaded structure is the cascaded lasers. Therefore, known varieties of solar cells could be unified by the name of tandem solar cells. Typical efficiency for this design is 22.3%. Growing epitaxial hetero-structures made of various semiconductor materials is another popular design. Typical efficiencies for these structures are 31.7%. In our study, we characterize the cascaded energy band profile, present IV characteristics, and demonstrate the efficiency of the novel solar cell is 52.85%. Current design of anti-reflection coating is based on using GaAs as anti-reflection layer.
Surface electromigration in copper interconnects

RF-magnetron sputter deposited copper films have been characterised in terms of microstructure, stress and resistivity. The electromigration behaviour of this copper has been compared to that of sputtered aluminium. Atomic force microscopy (AFM) has been used to study the void sites. The morphology of the damaged regions, together with the microstructural information, has been used to gain an insight into the mechanism by which electromigration voiding proceeds. The observed void sites in copper are entirely different from those in aluminium; hence, a different failure mechanism must be responsible. The voiding process for copper can be explained by a grain-boundary grooving model, and it was observed that surface impurities controlled the damage mechanism and the resulting void morphology.