bluuebunny/crossref_metadata_2025 huggingface dataset:
Improvement of Asia-Pacific Colorectal Screening score and evaluation of its use combined with fecal occult blood test
Authors: He Xuxia , Yuan Siyi , Li Wenbin , Yang Hong , Ji Wen , Wang Zhiqiang , Hao Jianyu , Chen Chuan , Chen Weiqing , Gao Yingxin , Li Lingbo , Cheng Kaifeng , Qian Jiaming , Wang Li , LI JN
Published: September 2019

Background The Asia-Pacific Colorectal Screening (APCS) score is effective to screen high-risk groups of advanced colorectal neoplasia (ACN) patients but needs revising and can be combined with the fecal occult blood test (FOBT). This paper aimed to improve the APCS score and evaluate its use with the FOBT in stratifying the risk of ACN. Methods This prospective and multicenter study enrolled 955 and 1201 asymptomatic Chinese participants to form the derivation and validation set, respectively. Participants received the risk factor questionnaire, colonoscopy and immunochemical FOBT. Multiple logistic regression was applied, and C-statistic, sensitivity and negative predictive values (NPVs) were used to compare the screening efficiency. Results A modified model was developed incorporating age, body mass index (BMI), family history, diabetes, smoking and drinking as risk factors, stratifying subjects into average risk (AR) or high risk (HR). In the validation set, the HR tier group had a 3.4-fold (95% CI 1.8-6.4) increased risk for ACN. The C-statistic for the modified score was 0.69 ± 0.04, and 0.67 ± 0.04 for the original score. The sensitivity of the modified APCS score combined with FOBT for screening ACN high-risk cohorts was 76.7% compared with 36.7% of FOBT alone and 70.0% of the modified APCS score alone. The NPVs of the modified score combined with FOBT for ACN were 98.0% compared with 97.0% of FOBT alone and 97.9% of the modified APCS score alone. Conclusions The modified score and its use with the FOBT are efficient in selecting the HR group from a Chinese asymptomatic population.
Canine colostrum exosomes: characterization, anti-oxidative capacity and influence on canine mesenchymal stem cell
Authors: Villatoro Antonio J , Martín-Astorga María del Carmen , Alcoholado Cristina , Becerra José
Published: September 2019

Background: Colostrum is a specific secretion of the mammary gland fundamental for the survival of the puppy during the first weeks after birth. It contains important bioactive molecules involved in the passive immunity and the maturation of various organs, highlighting small vesicles named exosomes. Exosomes have not been described yet in canine colostrum milk, where its role is crucial in dam-newborn communication for the development of the neonate. Results: Exosomes were abundant in canine colostrum milk and appeared with a characteristic cup-shaped morphology and well-defined round vesicles. Their size distribution was between 37−140 nm and western blot analysis showed an expression of specific exosomal markers. Proteomic analysis revealed a total of 826 proteins in exosomes cargo. We also found that exosomes modified proliferation and secretory profile in canine mesenchymal stem cells derived from bone marrow and adipose tissue, differently according to their origin. Besides, the exosomes of canine colostrum demonstrated a potent antioxidant effect. Conclusions: We described for the first time the isolation and characterization of milk exosomes from canine colostrum. Our findings highlight the abundant presence of exosomes in the colostrum of the canine species and contribute to explain their important antioxidant capacity after parturition and their role in the modulation of cell development and tissue differentiation in the newborn, where mesenchymal stem cells seem to play a key role.
Twisted and untwisted negativity spectrum of free fermions
Authors: Shapourian Hassan , Ruggiero Paola , Ryu Shinsei , Calabrese Pasquale
Published: September 2019

A basic diagnostic of entanglement in mixed quantum states is known
as the positive partial transpose (PT) criterion. Such criterion is
based on the observation that the spectrum of the partially transposed
density matrix of an entangled state contains negative eigenvalues, in
turn, used to define an entanglement measure called the logarithmic
negativity. Despite the great success of logarithmic negativity in
characterizing bosonic many-body systems, generalizing the operation of
PT to fermionic systems remained a technical challenge until recently
when a more natural definition of PT for fermions that accounts for the
Fermi statistics has been put forward. In this paper, we study the
many-body spectrum of the reduced density matrix of two adjacent
intervals for one-dimensional free fermions after applying the fermionic
PT. We show that in general there is a freedom in the definition of such
operation which leads to two different definitions of PT: the resulting
density matrix is Hermitian in one case, while it becomes
pseudo-Hermitian in the other case. Using the path-integral formalism,
we analytically compute the leading order term of the moments in both
cases and derive the distribution of the corresponding eigenvalues over
the complex plane. We further verify our analytical findings by checking
them against numerical lattice calculations.
Study on the dynamic characteristics of solidified silt under dynamic load
Authors: Jiang Shuo
Published: September 2019

The treatment and utilization of silt have always been a difficult problem in the field of engineering construction. Because of its high natural moisture content, low permeability and strength, rheological property and rich organic matter, the silt soil cannot be directly used in engineering practice. Under this background, in order to further explore the dynamic characteristics of solidified silt under dynamic load, a shallow mud along the coast of the Pearl River Delta in Guangdong Province was used as raw material, inorganic liquid solidifying agent and 32.5 ordinary Portland cement as solidifying agent. The dynamic characteristics of silt and solidified silt with age of 7 days and 28 days were studied by means of dynamic triaxial tests. The loaded samples were analyzed by SEM in laboratory. The experimental results show that the dynamic characteristics of the solidified silt soil under dynamic load are much better than that of the remoulded soil, and the solidification effect of the solidified silt soil with an age of 28 days is more obvious. The results can be applied to practical engineering practice.
Radiation damping for rigid foundations. Approximate expressions
Authors: Olmos Bertha , Jara José Manuel , Martínez Guillermo
Published: September 2019

The dynamic response of machine foundations was one of the first problems studied in soil dynamics with results going back to the 1930s. A number of approximations and graphical results were proposed in the 60s. In this paper we present a series of approximate expressions for the natural frequencies and effective damping of rigid masses on the surface of an elastic half space subjected to both vertical and coupled horizontal-rocking harmonic excitations. The formulas are obtained using the approximate expressions for the dynamic stiffness of circular foundations suggested by Veletsos et al [1, 2] for two different values of Poisson’s ratio of the soil. For the vertical case the expressions are only a function of the mass ratio (ratio of the mass of the foundation to an effective mass of soil) and of Poisson’s ratio. For the horizontal-rocking case they depend also on the ratio of the height of the foundation to its equivalent radius (a slenderness ratio).
Effects of mechanical non-linearity on the dynamic behaviour of ring-based inertial rate sensors
Authors: Di Napoli Violetta , McWilliam Stewart , Popov Atanas A.
Published: September 2019

This paper presents a mathematical model to describe the 2θ in-plane response of supported ring-based MEMS Coriolis Vibrating Gyroscopes (CVGs), including mechanical non-linearity in ring and support structures. Whilst it is well-known that the drive mode resonance frequency of unsupported rings depends on drive amplitude, the proposed model investigates the effects of support geometrical non-linearity on the dynamic behaviour of the 2θ modes. Results indicate that the non-linear stiffness of the supports, combined with the ring non-linearity, breaks the rotational symmetry of the resonator when 8 supports are used, leading to a reduction in sensor gain. In contrast the symmetry of the resonator and performance are maintained when 16 supports are used. The proposed model also demonstrates how the mechanical support non-linearity can be used to guide the design of resonators having a linear drive mode frequency backbone curve.
Simulation of elastic wave transmission in phononic crystal waveguides
Authors: Gu Yunfeng
Published: September 2019

An atomistic Green’s function method hybrid with the finite element method is developed to analyze the mode-dependent elastic wave transmittance in a structure with arbitrary geometries. The validity of the proposed method is demonstrated by the phononic crystal waveguide case and a comparison with the transfer matrix method. This method also can be used to investigate the phonon ballistic transport in a quantum system at low temperatures.
The effect of using shell and solid models in structural stress analysis
Authors: İrsel Gürkan
Published: September 2019

Computer aided engineering analysis is commonly used to evaluate and improve the performance and reliability of the products in today’s manufacturing industry. Computer aided engineering analysis software use finite elements method in their solutions. The most significant problem in practicing these analyses is to form the mesh structure properly. The aim of this study is to research the effects of using surface and three-dimensional solid models in structural stress analysis. In this context, the maximum deformation in a square beam subjected to bending was calculated analytically and numerically. The solid model and surface model were created via CATIA. These models were analyzed under the same conditions in the static analysis module via ANSYS workbench. A difference of 1.32 % was detected between the numerical solution and the numerical displacement value of the surface model, and a difference of 11.84 % was detected between the numerical solution and the displacement value of the solid model. The difference between the von mises stress values of both models is approximately 30 %. In the parametric assessment conducted regarding the change in the mesh size, it was discovered that the results were affected by the mesh size significantly, and the mesh size and stress increased by 1550 % with the singularity problem in the solid model. In systems subjected to bending, using a shell mesh with 6 degrees of freedom is more advantageous in terms of solution time, operational capacity, stability and accuracy of the result.
Modelling of pressure-temperature conditions for cavitation initiation in different liquids
Authors: Mikhailova N. , Smirnov I. , Volkov G.
Published: September 2019

The paper presents modelling of acoustic cavitation inception. The model is based on the structural-temporal approach, which has shown a predictive effectiveness in considering various transient processes. The presented calculations were performed for four different liquids at a high-frequency vibration and across a wide temperature range. The predictions of the presented theoretical model were validated by comparison with the experimental data, and good agreement was demonstrated.
On the combination of topology optimization and multiple mass dampers
Authors: Brecher Christian , Zhao Guifeng , Fey Marcel
Published: September 2019

This paper presents a vibration reducing mechanism combining the bi-directional evolutionary structural optimization (BESO) method and the multiple mass damper (MMD) method. The BESO method changes the mass and stiffness distribution of a structure, in order to push the most significant natural frequency away from the driving frequency. The removal of less stressed material by the BESO method creates hollow spaces in the structure. The MMD will be installed in the hollow spaces, and reduces the resonance vibration amplitude of the most significant mode.
Is There a Difference in Terms of Perinatal Outcomes Between Fresh and Frozen Embryo Transfers?
Authors: Ozdemir Ayse Zehra , Karli Pervin
Published: September 2019

OBJECTIVE: Nowadays, fresh embryo transfers and frozen embryo transfers are frequently employed in the treatment of in vitro fertilization. This study aims to compare the pregnancy outcomes in patients who underwent fresh embryo transfers and frozen embryo transfers.STUDY DESIGN: All patients who underwent fresh embryo transfers and frozen embryo transfers at the in vitro fertilization center, Ondokuz Mayis University between 2010 and 2017 were screened retrospectively and the pregnancy results were evaluated at one-year follow-up. The study included a total of 912 transfers, 679 of which were fresh embryo transfers and 233 were fresh embryo transfers, in 756 patients. Comparisons were made in terms of biochemical pregnancy, clinical pregnancy rate, ongoing pregnancy, and live birth rate.RESULTS: Ectopic pregnancy, biochemical pregnancy, and abortus in fresh embryo transfers were found to be significantly more than that in frozen embryo transfers (p=0.001). However, no statistically significant difference in terms of clinical or ongoing pregnancy rate or live birth rate was observed. Birth weight was significantly lower in fresh embryo transfers than in frozen embryo transfers (p=0.001, p= 0.031). Multiple pregnancies preeclampsia, preterm labor, and placental abruption did not show a statistically significant difference in fresh embryo transfers and frozen embryo transfers. Yet, gestational diabetes was significantly more in frozen embryo transfers (p=0.011).CONCLUSIONS: Early pregnancy complications in fresh embryo transfers are higher than that in frozen embryo transfers. In terms of neonatal results, higher birth weight and gestational diabetes are more prevalent in frozen embryo transfers. In this study, it has been shown that fresh embryo transfers are more often associated with negative pregnancy outcomes. frozen embryo transfers can be better for pregnancy results
Melanotic neuroectodermal tumor of infancy: a description of the experience of Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology and literature review
Authors: Suleymanova A. M. , Ozerov S. S. , Roshchin V. Yu. , Grachev N. S. , Bolshakov N. A. , Druy A. E. , Tereshchenko G. V. , Konovalov D. M. , Sagoyan G. B. , Shamanskaya T. V. , Kachanov D. Yu. , Varfolomeeva S. R.
Published: September 2019

Melanotic neuroectodermal tumor of infancy (MNTI) is a rare type of tumor with uncertain clinical behavior. The tumor commonly occurred in the head and neck region. Radical surgical resection is the standard of treatment, which is often associated with high risks of severe postoperative complications due to tumor localization. Alternative methods of treatment including chemotherapy/radiotherapy are used in metastatic, locally advanced and relapsed cases of MNTI. The aim of this study was to analyze clinical and morphological characteristics of the tumor, evaluate the effectiveness of various treatment options, and to describe two clinical cases of MNTI.
Promoting Effective Nurse-Patient Communication in Palliative Care Using the SAGE and THYME Model: Can it be Implemented Cross-Culturally?
Authors: Ang Seng H. M.
Published: September 2019

Effective communication in palliative care is essential in making optimal health care decisions that align with the interests of the patients and empowering them to be involved in their care planning. However, many Asian nurses lacked the prerequisite communication skills required to assess and address the informational needs of advanced cancer patients. These nurses often adopt a routinized approach of giving information to patients to overcome their inadequacies in eliciting patients’ concerns. Thus, this opinion paper seeks to understand whether the SAGE and THYME model can be utilised widely by nurses across different cultural contexts to facilitate more effective communication and to develop therapeutic relationships with advanced cancer patients who are receiving palliative care.
Protein Classification Using Machine Learning and Statistical Techniques
Authors: Gupta Chhote L. P. , Bihari Anand , Tripathi Sudhakar
Published: September 2019

Background:

In the recent era, the prediction of enzyme class from an unknown protein
is one of the challenging tasks in bioinformatics. Day-to-day, the number of proteins increases
which causes difficulties in clinical verification and classification; as a result, the prediction of enzyme
class gives a new opportunity to bioinformatics scholars. The machine learning classification
technique helps in protein classification and predictions. But it is imperative to know which classification
technique is more suited for protein classification. This study used human proteins data that is
extracted from the UniProtKB databank. A total of 4368 protein data with 45 identified features
were used for experimental analysis.

Objective:

The prime objective of this article is to find an appropriate classification technique to
classify the reviewed as well as un-reviewed human enzyme class of protein data. Also, find the
significance of different features in protein classification and prediction.

Methods:

In this article, the ten most significant classification techniques such as CRT, QUEST,
CHAID, C5.0, ANN, SVM, Bayesian, Random Forest, XgBoost, and CatBoost have been used to
classify the data and discover the importance of features. To validate the result of different classification
techniques, accuracy, precision, recall, F-measures, sensitivity, specificity, MCC, ROC, and
AUROC were used. All experiments were done with the help of SPSS Clementine and Python.

Results:

Above discussed classification techniques give different results and found that the data are
imbalanced for class C4, C5, and C6. As a result, all of the classification techniques give acceptable
accuracy above 60% for these classes of data, but their precision value is very less or negligible. The
experimental results highlight that the Random forest gives the highest accuracy as well as AUROC
among all, i.e., 96.84% and 0.945, respectively, and also has high precision and recall value.

Conclusion:

The experiment conducted and analyzed in this article highlights that the Random Forest
classification technique can be used for protein of human enzyme classification and predictions.
Real-Time Auditory Feedback–Induced Adaptation to Walking Among Seniors Using the Heel2Toe Sensor: Proof-of-Concept Study
Authors: Mate Kedar KV , Abou-Sharkh Ahmed , Morais José A , Mayo Nancy E
Published: September 2019

Background

Evidence shows that gait training in older adults is effective in improving the gait pattern, but the effects abate with cessation of training. During gait training, therapists use a number of verbal and visual cues to place the heel first when stepping. This simple strategy changes posture from stooped to upright, lengthens the stride, stimulates pelvic and trunk rotation, and facilitates arm swing. These principles guided the development of the Heel2Toe sensor that provides real-time auditory feedback for each good step, in which the heel strikes first.

Objective

This feasibility study aimed (1) to contribute evidence toward the feasibility and efficacy potential for home use of the Heel2Toe sensor that provides real-time feedback and (2) to estimate changes in gait parameters after five training sessions using the sensor.

Methods

A pre-post study included 5 training sessions over 2 weeks in the community on a purposive sample of six seniors. Proportion of good steps, angular velocity (AV) at each step, and cadence over a 2- minute period were assessed as was usability and experience.

Results

All gait parameters, proportion of good steps, AV, and duration of walking bouts improved. The coefficient of variation of AV decreased, indicating consistency of stepping.

Conclusions

Efficacy potential and feasibility of the Heel2Toe sensor were demonstrated.
Challenges and Lessons Learned From a Mobile Health, Web-Based Human Papillomavirus Intervention for Female Korean American College Students: Feasibility Experimental Study
Authors: Kim Minjin , Lee Haeok , Allison Jeroan
Published: September 2019

Background

Mobile health (mHealth) and Web-based research methods are becoming more commonplace for researchers. However, there is a lack of mHealth and Web-based human papillomavirus (HPV) prevention experimental studies that discuss potential issues that may arise.

Objective

This study aimed to assess the feasibility of research procedures and discuss the challenges and lessons learned from an mHealth and Web-based HPV prevention experimental study targeting female Korean American college students in the United States.

Methods

A pilot randomized controlled trial (RCT) was conducted in an mHealth and Web-based platform with 104 female Korean American college students aged 18-26 years between September 2016 and December 2016. Participants were randomized to either the experimental group (a storytelling video intervention) or the comparison group (a nonnarrative, information-based intervention). Outcomes included the feasibility of research procedures (recruitment, eligibility, randomization, and retention).

Results

From September 2016 to October 2016, we recorded 225 entries in our initial eligibility survey. The eligibility rate was 54.2% (122/225). This study demonstrated a high recruitment rate (95.6%, 111/122) and retention rate (83.7%, 87/104) at the 2-month follow-up.

Conclusions

Findings from this study demonstrated sufficient feasibility in terms of research procedures to justify a full-scale RCT. Given the increased possibility of invalid or misrepresentative entries in mHealth and Web-based studies, strategies for detection and prevention are critical.

Trial Registration

ISRCTN Registry ISRCTN12175285; http://www.isrctn.com/ISRCTN12175285
Smartphone Apps to Support Coordinated Specialty Care for Prodromal and Early Course Schizophrenia Disorders: Systematic Review (Preprint)
Authors: Camacho Erica , Levin Leonard , Torous John
Published: September 2019

BACKGROUND

Demand for mental health services, especially for clinical high-risk and early psychosis, has increased, creating a need for new solutions to increase access to and quality of care. Smartphones and mobile technology are potential tools to support coordinated specialty care for early psychosis, given their potential to augment the six core roles of care: case management and team leadership, recovery-oriented psychotherapy, medication management, support for employment and education, coordination with primary care services, and family education and support. However, the services smartphones are actually offering specifically for coordinated specialty care and the level of evidence are unknown.

OBJECTIVE

This study aimed to review the published literature on smartphone technology to enhance care for patients with prodromal and early course psychosis and schizophrenia and to analyze studies by type, aligned with coordinated specialty care domains.

METHODS

A systematic literature search was conducted on August 16 and 17, 2019, using the PubMed, EMBASE, Web of Sciences, and PsycINFO electronic databases. The eligible studies were reviewed and screened based on inclusion and exclusion criteria.

RESULTS

The search uncovered 388 unique results, of which 32 articles met the initial inclusion criteria; 21 eligible studies on 16 unique app platforms were identified. Feasibility studies showed a high user engagement and interest among patients, monitoring studies demonstrated a correlation between app assessments and clinical outcomes, and intervention studies indicated that these apps have the potential to advance care. Eighteen studies reported on app use for the case management roles of coordinated specialty care. No app studies focused on employment and education, coordination with primary care services, and family education and support.

CONCLUSIONS

Although the published literature on smartphone apps for prodromal and first-episode psychosis is small, it is growing exponentially and holds promise to augment both monitoring and interventions. Although the research results and protocols for app studies are not well aligned with all coordinated specialty care roles today, high rates of adoption and feasibility suggest the potential for future efforts. These results will be used to develop coordinated specialty care–specific app evaluation scales and toolkits.
Effect of Community Participation in Education on Quality of Education: Evidence from a Developing Context
Authors: Ahmad Iqbal
Published: September 2019

Education is an activity in collaboration. Without community participation, education cannot achieve its goals and without education society cannot think of development. A plethora of research exists on community participation in education and its outcomes. However, meager studies have been carried out to examine the relationship between community participation and quality of education. Although quality of education cannot be determined by one or two indicators. Research has already discovered many indicators of quality of education. But this study specifically investigated into three essential indicators which are contextually relevant to a developing country. The three main indicators investigated in relation with community participation were access, retention and attendance. The main aim of this study was to find out whether or not community participation in education reduces the issues of access, retention and attendance at secondary school level. To collect data, the study surveyed 200 (female) and 300 (males) total N=500 government secondary schools teachers in Khyber Pakhtunkhwa province of Pakistan. Data were collected, collated and statistically computed using Pearson Correlation and ANOVA to determine a correlation between the independent variable (community participation in education) and the three indicators of quality of education such as access, retention and attendance as dependent variables. Results of the study indicated a significantly positive correlation between community participation and all the three indicators of quality of education. The study proposes community participation in education as the high positive predictor of access to education, retention and attendance.
Meta-Cognitive Strategies and Nursing Studentsâ€™ Achievement
Authors: M. Salari , . Ramlah Hamzah , . Zarida Hambali
Published: September 2019

In the information era in which there is an increasing and rapid information change, education system needs to enable students to solve the problems of real world with their acquired skills. Metacognition is essential for successful learning and students can learn and use it to improve their performance. This paper was an attempt to investigate the reliability of meta-cognitive awareness inventory that is generated by Schraw and Dennison (1994) and its correlation with nursing studentsâ€™ achievement in Iran. The design adopted for this study was a descriptive correlation design. To this end, 40 female university students majoring in nursing were selected as the sample. Pediatric nursing performance was measured using a test which included higher and lower order questions. The results indicated that (a) the questionnaire has acceptable internal consistency, with a Cronbach alpha coefficient of .74, (b) there was a strong, positive correlation between the two variables, r = .729, n = 40, p
Heuristic Evaluation of Childrenâ€™s Authoring Tool for Game Making
Authors: Md Laili Farhana
Published: September 2019

The main purpose of the study is to evaluate the heuristic inspection of childrenâ€™s authoring tools to develop games. The researcher has selected 15 authoring tools for making games specifically for educational purposes. Nine students from Diploma of Game Design and Development course and four lecturers from the computing department involved in this evaluation. A set of usability heuristic checklist used as a guideline for the students and lecturers to observe and test the authoring tools selected. The study found that, there are just a few authoring tools that fulfil most of the heuristic requirement and suitable to apply to children. In this evaluation, only six out of fifteen authoring tools have passed above than five elements in the heuristic inspection checklist. The researcher identified that to develop a usable authoring tool developer has to emphasis children acceptance and interaction of the authoring tool. Furthermore, the authoring tool can be a tool to enhance their mental development especially in creativity and skill.
A Case Study of Academicsâ€™ Knowledge Sharing Motivations at Malaysian Public Academic Institutions
Authors: Saad Alsaleh
Published: September 2019

This qualitative case study aims to explore and describe the academiciansâ€™ knowledge sharing motivations in a Malaysian public university. A single case study was conducted with the aim to gather deeper insights on the knowledge sharing motivation. Data were collected through semi-structured interviews. A total of 15 renowned academicians were interviewed. Content analysis method was used to extract the knowledge sharing motivations from the qualitative data. The research results reveal seven important factors which motivate academicians to share their knowledge. These motivations are build reputation, acknowledgement (includes gain rewards, get a promotion, and recognition), to be knowledgeable, reciprocity, vision and mission, mentoring, personal beliefs (includes culture, sense of responsibility, and religion). The research comprehensive analysis and results would expand an area of knowledge sharing motivations among academicians in universities which may still theoretically and empirically not adequately explored and described.
Effects of Collaborative Learning on Chemistry Studentsâ€™ Academic Achievement and Anxiety Level in Balancing Chemical Equations in Secondary School in Katsina Metropolis, Nigeria
Authors: Yusuf Sabiru Dahiru
Published: September 2019

The study investigated effects of Collaborative learning on Chemistry studentsâ€™ academic achievement and Anxiety level in Balancing Chemical Equations in Secondary Schools in Katsina metropolis, Nigeria. The study sampled 80 SSII students, randomly selected from two senior secondary schools in katsina metropolis. The two schools were randomly placed as experimental and control groups each with 40 students. A quasi-experimental pretest-posttest research design was used for the study. The study subjects in the experimental group was taught/ allowed to learn using Collaborative learning concept of Balancing Chemical Equation, while the control group also was taught the same concept using traditional method for the period of six weeks. A chemistry Achievement test and Students Anxiety scale Questionnaire were used as the instruments for data collection. Performance of the two groups were compared using post-test mean scores, and t-test unrelated sample, at a significant level (P) =0.05. The findings from the study shows those students taught using Collaborative learning tent to achieve significantly higher and their anxiety was found to be low when compared with those taught using lecture method. Based on the findings, the recommendations were made among which; Chemistry teachers should always use Collaborative learning in teaching chemistry concepts, as this method enhance students achievement and reduce students anxiety.
Enhanced dielectric properties in la modified barium titanate ceramics
Authors: Paunovic Vesna , Prijic Zoran , Djordjevic Milos , Mitic Vojislav
Published: September 2019

Donor/acceptor (La/Mn) doped BaTiO3 ceramics, sintered at different
temperatures, were studied regarding their microstructure and dielectric
properties as well as the dielectric response in a
ferroelectric/paraelectric regime. The concentrations of La3+ as donor,
ranging from 0.1 to 5.0 at% were used for doping, while a content of Mn4+ as
acceptor was at 0.05 at% in all samples. The sintering temperature of
codoped samples were 1290? and 1350?C. A reduction in grain size and
fine-grained microstructure with average grain size from 0.5 to 2.0 mm was
observed in low doped samples, whereas the abnormal growth of individual
grains took place in the 2 at% and 5 at% La doped specimens. The dielectric
properties of these samples were investigated as a function of frequency
(100Hz - 20 kHz) and temperature (20-180?C). The measured results suggested
that both the dielectric constants of the ceramics (er at room temperature
and ermax at the Curie temperature) decreased as the concentration of La3+
increased. The dielectric permittivity was in the range of 944 to 3200. For
samples doped with 0.1 at% La and sintered at 1350?C, the highest dielectric
constant value at room temperature (er= 3200) and Curie temperature (er=
5000) were measured. For all measured samples the dissipation factor was
less than 0.09. With an increase in La contents, dielectric measurements
exhibited shift in the Curie temperature (Tc) towards the low temperature.
Using the Curie-Weiss and the modified Curie-Weiss law, Curie's constant C
was calculated as well as the parameterg, which describes the deviation from
the linear dependence er of T above the phase transformation temperature.
The calculated values for g ranged from 1.01 to 1.43. These values indicate
a sharp phase transformation in lowdoped and diffuse phase transformation in
highly La doped samples. The phase transition was reflected in the values of
C that started to decrease with increasing dopant content.
A brief overview of stochastic instruments for measuring flows of electrical power and energy
Authors: Vujicic Vladimir , Pejic Dragan , Radonjic Aleksandar
Published: September 2019

This paper gives a brief overview of three instruments suitable for measuring
the flow of electrical power and energy. The first instrument is a
single-phase power analyzer, while the other two instruments are double and
quadruple three-phase power analyzers. In addition to over viewing these
instruments, the paper presents a possible improvement of a quadruple
three-phase power analyzer. The implementation of this improvement would
make it possible to use a quadruple three-phase power analyzer as support
for the phasor measurement unit.
Frequency scanning antenna arrays with metamaterial based phased shifters
Authors: Boskovic Nikola , Jokanovic Branka , Markovic Vera
Published: September 2019

This paper presents a simple design of linear series-fed frequency scanning
antenna arrays with: (a) identical rectangular dipoles and (b) pentagonal
dipoles having different impedances to provide enhanced side lobe
suppression. Phase shifters are designed as a metamaterial unit cell
consisting of split-ring resonators coupled with the parallel microstrip
line. Shifter models variations are described and control of phase is
demonstrated. Two antenna arrays are manufactured and measured.
Cyberresiliens, sektorprincip og ansvarsplacering – nordiske erfaringer
Authors: Jensen Mikkel Storm
Published: September 2019

Siden 2003 har regeringerne i Norge, Danmark, Sverige, Finland og Island arbejdet med at udvikle og implementere nationale strategier for cyber- og informationssikkerhed. Strategierne omfatter mange forskellige områder; f.eks. institutionel kapacitetsopbygning, uddannelses- og forsvarspolitik, internationalt samarbejde etc. Denne artikel skitserer landenes forskellige strategier per august 20181 for statens rolle i samfundets cyberresiliens, dvs. de kritiske samfundsfunktioners evne til at modstå og overkomme negative effekter af hændelser med udspring i cyberdomænet. Endvidere skitserer artiklen de udfordringer, som regeringerne har konstateret, at opgavefordeling og ansvarsplacering har givet, samt hvordan implementeringerne af strategierne reflekterer disse erkendelser. Her har den finske regering vist sig mest konsekvent ved at placere ansvaret for implementeringen af cyberresiliens centralt i en magtfuld organisation og udstyre den med konkrete styringsredskaber og en stor, velintegreret kontaktflade til den private del af Finlands kritiske infrastruktur.
Abstract in English
Since 2003, the governments of Norway, Denmark, Sweden, Finland and Iceland have developed and implemented national strategies for cyber and information security. The strategies include several topics such as organisational and human resource capacity building, defence policy, international cooperation, etc. This article gives a thumbnail sketch of the countries’ strategies for the state’s role in societal cyber resiliens (the ability to resist and overcome negative effects of events emanating from the cyber domain). It then shortly describes the experienced challenges with distribution of tasks and responsibilities, and how the implementation of the strategies reflect attempts to overcome them. It concludes that the Finnish government has gone furthest by placing responsibility for implementation centrally in an influential organisation and giving it a centrally developed common matrix for assessing progress and a well-established formal network within the private segment of Finland’s critical infrastructure.
Budaya-Organisasi Membawa Pengaruh Terhadap Kinerja
Authors: Sasongko Noer
Published: September 2019

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Menguak Akuntabilitas Dibalik Tabir Nilai Kearifan Budaya Jawa
Authors: Zulfikar Zulfikar
Published: September 2019

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MOTIVASI KERJA GURU DI SMP NEGERI SUB RAYON 2 MUNTILAN KABUPATEN MAGELANG (Suatu tinjauan aspek persepsi guru tentang supervisi kepala sekolah, profesionalisme guru, dan iklim sekolah)
Authors: Nugrahantini Nanik Istantri
Published: September 2019

The aim of this research is to describe and explain teacher perception influence about headmaster supervision, work climate, and teacher professionalism towards teacher work motivation at SMP country for area 02 muntilan regency magelang. The sample is taken with random proportional technique sampling in error level 5% with Kretcie table as big as 117 from 175 teachers. Data collecting for all variable, use closed inquiry method based on test result has tried the instrument has been declared valid and reliable. The data analysis technique for interval characteristic data, used multiple regression analysis in 5% standard signification. classic assumption for this Multiple regression applications, are normality data distribution, linearity, nonmulticolinearity test, homoscedasticity test and otokorelation test, are BLUE. The result of this research show that connection causal deliver variable that canvassed to show level significations that certifiable in ts. 5%. as to this result is braced with contribution coefficient as big as 63,9% detailed for headmaster supervision factor as big as 19,7%, work climate as big as 20,6% and teacher professionalism 23,6%.
Pengembangan Model Penilaian Autentik Kompetensi Berbicara
Authors: Rahmawati Laili Etika , Fatimah Nuraini
Published: September 2019

The first year research has aim to: (1) describe the learning assessment process of the speaking theory subject and (2) design the theorethic model of authentic assessment in speaking competence. The method used in the research is Research and Development method, i.e. the research method is used to produce certain product, and to test the effectiveness of the product. The results of the research are: (1) the assessment activity of the students’ speaking competence who takes the speaking theory subject have the characteristics of authentic assessment. It is based on the result of the curriculum review which has impact to the syllabus adjustment in directing to the teachers’ need at school. Therefore, the speaking competence assessment which focuses on the speaking ability, nowadays its academic competence focus is broading. In addition, the audiences’ affective respon is used as the assessment consideration; (2) the theoretic model of speaking competence assessment can be described that the speaking competence assessment is divided as two step categories, they are the process and the result assessment. The portofolio assessment is the most theorithic assessment tecnique which considered as it appropriate to gain the students’ speaking competence development. The result of the assessment is divided into two tests, i.e the middle semester test and the final semester test. The middle semester test is used to know the student’s competence which has closed relation to the speaking theories because the students have to mastery the speaking competence in order to practice the speaking competence, the students’ must also have to teach it. The final semester test is conducted to know the students’ competence in the speaking practice which can be conducted by the three techniques, they are group, peer, and individual technique. The tehcniques can be applied based on the needs and the characteristic of the tested competence.
Peningkatan Dalam Menyusun Rencana Pelaksanaan Melalui Supervisi Klinis Pada Kepala SD Daerah Binaan II UPTD Pendidikan Kecamatan Kalikotes Kabupaten Klaten Semester Gasal Tahun Pelajaran 2014/2015
Authors: Sumarsih Sri
Published: September 2019

The aim of this study was to describe the increase in the principal’s efforts in preparing the implementation plan through clinical supervision at State Primary School Pa tronage II Regional District of Klaten Kalikotes odd semester of 2014/2015 academic year. Subject and source of research data were five school principals. Methods of data collection were observation, documentation, and testing. Data analysis used a critical and compara- tive analysis. Indicators of success used the minimum 76 and a target of 100% complete- ness. Results of research and discussion suggest that the observation of the principal in the supervision of lesson preparation plan in detail can be described from previsus cycle  to cycle I, there was an increase of 60%, from cycle to cycle II, there is an increase of 80%, and from the first cycle to the second cycle previsus there is an increase of 20%, it can be concluded that the start of the second cycle to previsus cycle is significantly, and principals in the preparation of the lesson plan in detail can be described from previsus cycle to the first cycle, an increase of 60%, from previsus cycle to second cycle, an increase of 100%, and from the first cycle to the second cycle there is an increase of 40%, it can be concluded that the start of the second cycle to before cycle is significantly.
Notas sobre os estudos das religiões afro-brasileiras nos Programas de Ciência(s) da Religião no Sudeste e Centro-Oeste do Brasil: origens e perspectivas
Authors: Brito Ênio José Da Costa , Pimentel Cláudio Santana
Published: September 2019

O presente artigo reconstitui parcialmente o desenvolvimento da pesquisa sobre religiões afro-brasileiras nos programas de estudos pós-graduados em Ciência(s) da Religião das regiões Sudeste e Centro-Oeste do Brasil. Aponta de maneira sistemática as estratégias metodológicas, as fontes documentais pesquisadas e os referenciais teóricos que orientaram os pesquisadores que trabalharam essa temática.
Ciência(s) da Religião Aplicada(s): uma contribuição do mestrado profissional em ciências das religiões da Faculdade Unida de Vitória
Authors: Rocha Abdruschin Schaeffer , Ribeiro Osvaldo Luiz
Published: September 2019

Artigo avaliativo-propositivo das relações entre mestrados acadêmicos e profissionais na Área Ciências das Religiões e Teologia no Brasil. Considera-se, de um lado, o recorte prioritário dosMestrados Profissionais no campo da Ciência da Religião Aplicada e, de outro, a experiência histórica do único Mestrado Profissional em Ciências das Religiões do Brasil. Descreve-se a diversidade de representação de campos profissionais no corpo discente do Programa, sua relativa concentração em Educação, Religião, Direito e Saúde, extraindo da constatação a argumentação quanto a constituir função do Programa a formação continuada, na perspectiva da pesquisa e da atuação em Ciências das Religiões, de profissionais de quaisquer campos de atuação em cujo contexto imbriquem questões relacionadas à religião em interface com a respectiva profissão.
Las debilidades del catolicismo español previas al Concilio Vaticano II
Authors: Puerta Antonio Martín
Published: September 2019

El decaimiento de la presencia social de la Iglesia española ha dado lugar a todo tipo de explicaciones. Que una de las instituciones seculares y vertebradoras de un país pase a un rango que en no pocos aspectos es secundario o hasta irrelevante suscita serias preguntas. Explicaciones procedentes de espacios conservadores han insistido comúnmente en el debilitamiento generado por las aproximaciones al liberalismo, cuando no a la izquierda laica. En los momentos de la aparatosa crisis posconciliar se lanzó la idea de que se iniciaba un inesperado camino de declive frente a un siempre pujante catolicismo anterior. Con independencia de tales derivaciones recientes – que no se tratan aquí –, la realidad resulta más compleja. De hecho la supuestamente brillante situación anterior era en ocasiones una idealización de la verdadera historia. Un repaso a las situaciones precedentes al Concilio se impone por tanto.
Sobre a definição de religião: historiografia, críticas e possibilidades
Authors: Figueiredo Nestor
Published: September 2019

O presente trabalho propõe apresentar em suas primeiras seções a questão sobre a definição de religião e as implicações daí decorrentes para o estudo científico nesta área. Para isso, nos valemos de trabalhos que abordam diretamente o tema, bem como daqueles que fazem sua crítica. Em sua última seção, o texto traz algumas dificuldades para a formulação dessa definição dialogando com propostas alternativas, aspectos de precisão linguística e critérios de validação, finalizando com considerações e sugestões sobre estes desafios a partir do próprio percurso teórico.
A história dos estudos da religião importa para a Ciência da Religião?
Authors: Strenski Ivan
Published: September 2019

Tradução (Fábio Stern) de uma palestra intitulada Does History of the Study of Religion Matter to the Study of Religion? sobre os desafios metodológicos na construção da história da ciência da religião, originalmente publicado em 1997. Visto a preocupação nos últimos três anos de pesquisadores da ciência da religião brasileira em levantar a história da disciplina no Brasil, a discussão de Strenski se apresenta como um contraponto internacional importante sobre como construir uma história correta dos estudos da religião.
Quatro estações para o diálogo: quarenta anos de contribuição do Programa de Ciência da Religião da PUC-SP para o Ensino Religioso
Authors: Junqueira Sérgio Azevedo Rogério
Published: September 2019

O Programa de Pós-Graduação em Ciência da Religião da Pontifícia Universidade Católica de São Paulo completou quarenta anos de pesquisa e produção sobre diferentes aspectos da religião. Entre eles está a discussão do ensino religioso, que ocorreu de forma explícita a partir de meados dos anos noventa, quando seus pesquisadores iniciaram um processo de compreensão entre o Ensino Religioso e a Ciência da Religião. Este artigo foi produzido a partir do programa Concepções e Recursos do Ensino Religioso no Projeto Concepções e Produção Científica. É uma pesquisa qualitativa bibliográfica resultante da organização de informações para reconstruir a relação de um Programa de Stricto Senso com a implementação dos referenciais teóricos deste componente a partir da Ciência da Religião como sua área de referência.