214 research outputs found

    Implementasi Konsep “BETAH” dalam Pelaksanaan Ujian Akademik Penerimaan Polri Terpadu Polda Sumatera Utara Berbasis Komputer dan Manual

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    The current examination must be clean and honest in order to get good and integrity resources so that the institutions that carry out the reception of human resources will be satisfied and successful. Likewise in the current era of computerization the North Sumatra regional police in carrying out personnel recruitment applies the concept of "TRUE" which means "Clean Transparent Accountable and Humanistic" with the jargon of Clear and Clean. Examination of the Academic Exams in accordance with the instructions and instructions from the National Police Headquarters of the Republic of Indonesia is carried out by combining computer technology with conventional models / manuals with Computer Answer Sheets (LJK). All selection participants who passed and did not pass were satisfied because with this method each participant could see the selection process from beginning to end in a very transparent manner, so that the perception of the community had always been negative thinking that the national police selection was not free from KKN practices. The concept of CONCRETE is a very good method and can be accounted for by all the elements involved in the process and can realize the selection process that is "Clear and Clean

    Entanglement negativity in quantum field theory

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    We develop a systematic method to extract the negativity in the ground state of a 1+1 dimensional relativistic quantum field theory, using a path integral formalism to construct the partial transpose rho_A^{T_2} of the reduced density matrix of a subsystem A=A1 U A2, and introducing a replica approach to obtain its trace norm which gives the logarithmic negativity E=ln||\rho_A^{T_2}||. This is shown to reproduce standard results for a pure state. We then apply this method to conformal field theories, deriving the result E\sim(c/4) ln(L1 L2/(L1+L2)) for the case of two adjacent intervals of lengths L1, L2 in an infinite system, where c is the central charge. For two disjoint intervals it depends only on the harmonic ratio of the four end points and so is manifestly scale invariant. We check our findings against exact numerical results in the harmonic chain.Comment: 4 pages, 5 figure

    On the continuum limit of the entanglement Hamiltonian

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    We consider the entanglement Hamiltonian for an interval in a chain of free fermions in its ground state and show that the lattice expression goes over into the conformal one if one includes the hopping to distant neighbours in the continuum limit. For an infinite chain, this can be done analytically for arbitrary fillings and is shown to be the consequence of the particular structure of the entanglement Hamiltonian, while for finite rings or temperatures the result is based on numerical calculations

    Aplikasi Pengacak Soal Ujian untuk Type Soal Berbasis Microsoft Word Menggunakan Metode Linear Congruent Method (LCM)

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    Exam questions made by lecturers in general in an educational institution around 99% are made from Microsoft Word applications. This happens because of the ability or skill of the question maker and the facilities of the institution. The exam questions that have been made seem like a consumable model, even though the material from these questions still has a relationship with the subject. With this condition the existing questions are not necessary and do not have to be destroyed, it should be stored and made into a question bank. So on the next examination the test questions stored in the bank questions to be randomized again to make new questions as many as the number of questions needed so that the exam questions are presented far from static and color and each test for each participant will never be the same as previous questions. and also the implementation of semi-computerized exams do not need to require a computer laboratory. This application is equipped with a randomization method, namely Linear Congruent Method (LCM), so that the questions that appear will never be the same each time printing a question in the form of executable (EXE), making it easier for study programs to make exam questions in multiple choices and in accordance with existing material in the syllabus and GBPP that apply from several lecturers who teach the same subject

    Teachers' feedback practices in COVID-19: Has anything changed?

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    OBJECTIVES: Feedback delivered by teachers to dental students has a profound impact on students' ongoing learning and development. The aim of this study was to investigate changes to feedback practices as a result of the global COVID-19 pandemic and the ensuing challenges to delivering quality dental education. METHODS: This was a mixed method study. Quantitative data were collected through a bespoke questionnaire delivered to attendees of the Association for Dental Education in Europe (ADEE) annual conference. Qualitative data were collected via four focus groups at the conference, each discussing a particular theme. The questionnaire and conference were delivered online via Gmail and MS Teams, respectively. Quantitative data were analysed descriptively; qualitative data were analysed narratively, and both were triangulated. RESULTS: 67 questionnaire responses were received which represented a 26% response rate. Respondents came from 12 different countries within Europe and beyond and reported having a variety of roles in their dental schools. 77.6% (n = 52) respondents indicated they had changed their delivery of feedback due to the pandemic. One-third of respondents reported giving more feedback and 76% (n = 51) increased their quantity of feedback delivered online. The increased incidence of online learning had resulted in a greater emphasis on teaching small groups, increased use of technology, increased emphasis on student centred learning and heightened awareness of changing the style of feedback delivery. CONCLUSIONS: The COVID-19 pandemic has enforced rapid changes to the delivery of feedback by teachers to dental students, which could pave the way for a more positive, inclusive, individualistic and effective approach for delivering feedback now and in the future. CLINICAL SIGNIFICANCE: The COVID-19 pandemic resulted in a significant shift from face-to-face teaching to online tuition, which promoted a need to re-evaluate the best method of delivering feedback to students. The ongoing changes in teaching approaches have a profound impact on clinical skills acquisition for dental students. The quality of the feedback students receive may help to enhance the synergies between theoretical online teaching and hands-on clinical skills acquisition, which has been altered and disrupted due to the ongoing pandemic

    Response of the Arthropod Community to Soil Characteristics and Management in the Franciacorta Viticultural Area (Lombardy, Italy)

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    Soil represents an important pool of biodiversity, hosting about a quarter of the living species on our planet. This soil richness has led to increasing interest in the structural and functional characteristics of its biodiversity. Studies of arthropod responses, in terms of abundance and taxon richness, have increased in relation to their ecological value as bioindicators of environmental change. This research was carried out over the 2014\u20132018 period with the aim to better understand arthropod taxa responses in vineyard soils in Franciacorta (Lombardy, Italy). To determine the biological composition in terms of arthropod taxa presence, one hundred soil samples were analysed. Environmental characteristics, such as chemical composition, soil moisture and temperature, and soil management were characterized for each soil sample. A total of 19 taxa were identified; the NMDS model analysis and the cluster analysis divided them into five groups according to their co-occurrence patterns. Each group was related to certain abiotic conditions; of these, soil moisture, temperature and organic matter were shown to be significant. A decision tree analysis showed that a longer period since conversion from conventional to organic farming lead to a higher arthropod biodiversity defined as a higher number of taxa. \ua9 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)

    Occlusal traits in children with neurofibromatosis type 1

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    Literature is poor of data about the occlusion in children affected by neurofibromatosis type 1 (NF1). This case-control study investigated the occlusal traits in a group of children with NF1

    Facial Asymmetry Detected with 3D Methods in Orthodontics: A Systematic Review

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    Background: Historically, the development of two-dimensional (2D) imaging techniques forerun that of three-dimensional (3D) ones. Some 2D methods are still considered valid and effective to diagnose facial asymmetry but 3D techniques may provide more precise and accurate measurements. Objective: The aim of this work is to analyze the accuracy and reliability of the imaging techniques available for the diagnosis of facial asymmetry in orthodontics and find the most reliable. Methods: A search strategy was implemented using PubMed (National Library of Medicine, NCBI). Results: A total of 3201 papers were identified in electronic searches. 90 articles, available in full text, were included in the qualitative synthesis consisting of 8 reviews on the diagnosis of facial asymmetry, 22 in vivo and in vitro studies on 2D methods and 60 in vivo and in vitro studies on 3D methods to quantify the asymmetry. Conclusion: 2D techniques include X-ray techniques such as posterior-anterior cephalogram, which still represents the first level exam in the diagnosis of facial asymmetry. 3D techniques represent the second level exam in the diagnosis of facial asymmetry. The most current used techniques are CBCT, stereophotogrammetry, laser scanning, 3D optical sensors and contact digitization. The comparison between bilateral parameters (linear distances, angles, areas, volumes and contours) and the calculation of an asymmetry index represent the best choices for clinicians who use CBCT. The creation of a color-coded distance map seems to represent the most accurate, reliable and validated methods for clinicians who use stereophotogrammetry, laser scanning and 3D optical sensors

    Non-assembled orf2 capsid protein of porcine circovirus 2b does not confer protective immunity

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    Porcine Circovirus 2 (PCV2) vaccines are based on either inactivated whole virion, or recombinant ORF2 capsid protein assembled into Virus-like Particles (VLPs). No data are available about the immunizing properties of free, non-assembled capsid protein. To investigate this issue, ORF2 of a reference PCV2b strain was expressed in a Baculovirus-based expression system without assembly into VLPs. The free purified protein was formulated into an oil vaccine at three distinct Ag payloads: 10.8/3.6/1.2 micrograms/dose. Each dose was injected intramuscularly into five, 37-day old piglets, carefully matched for maternally-derived antibody. Five control piglets were injected with sterile PBS in oil adjuvant. Twenty-eight days later, all the pigs were challenged intranasally with 105.3 TCID50 of PCV2b strain DV6503. After challenge infection, all the pigs remained in good clinical conditions. The recombinant vaccine did not induce significant antibody and PCV2-specific IFN-γ responses. ELISPOT and lymphocyte proliferation data confirmed poor induction of cell-mediated immunity. In terms of PCV2 viremia, there was no significant difference between vaccinated and control animals. The histological data indicated the absence of a detectable viral load and of PCVAD lesions in both vaccinated and control animals, as well as of histiocytes and multi-nucleated giant cells. We conclude that free, non-assembled ORF2 capsid protein does not induce protective immunity

    Bi-partite entanglement entropy in massive (1+1)-dimensional quantum field theories

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    This paper is a review of the main results obtained in a series of papers involving the present authors and their collaborator J L Cardy over the last 2 years. In our work, we have developed and applied a new approach for the computation of the bi-partite entanglement entropy in massive (1+1)-dimensional quantum field theories. In most of our work we have also considered these theories to be integrable. Our approach combines two main ingredients: the 'replica trick' and form factors for integrable models and more generally for massive quantum field theory. Our basic idea for combining fruitfully these two ingredients is that of the branch-point twist field. By the replica trick, we obtained an alternative way of expressing the entanglement entropy as a function of the correlation functions of branch-point twist fields. On the other hand, a generalization of the form factor program has allowed us to study, and in integrable cases to obtain exact expressions for, form factors of such twist fields. By the usual decomposition of correlation functions in an infinite series involving form factors, we obtained exact results for the infrared behaviours of the bi-partite entanglement entropy, and studied both its infrared and ultraviolet behaviours for different kinds of models: with and without boundaries and backscattering, at and out of integrability
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