bluuebunny/crossref_metadata_2025 huggingface dataset:
Matematika dan lingkungan
Authors: Widiani Yuliana
Published: September 2019

Tujuan penulisan karya tulis ilmiah ini adalah mengajak pembaca untuk memahami kegunaan dan manfaat matematika sebagai dasar atau pedoman dalam melakukan aktivitas pertanian. Adapun yang menjadi latar belakang penulisan ini adalah, kebanyakan petani di Indonesia menyepelekan matematika sebagai dasar dalam melakukan aktifitas pertanian, misalnya jarak tanam, kadar pupuk, usia tanaman, tinggi tanaman, umur tanaman dan sebagainya. Petani di Indonesia beranggapan bahwa matematika tidak terlalu penting dalam melakukan kegiatan pertanian, mereka lebih percaya akan logika mereka sendiri atau tradisi mereka yang telah mereka jalankan selama bertahun-tahun. Mereka tidak tahu bahwa bisa saja jika mereka mengikuti aturan atau perhitungan matematika mereka akan mendapatkan hasil yang maksimal. Misalnya saja pada penanaman kelapa sawit terdapat penggunaan rumus seitiga sama sisi yang bertujuan untuk mengatur jarak tanam, agar tanaman saat tumbuh dewasa atau tumbuh besar tidak terlalu berhimpitan. Maka dari itu penulis mengajak pembaca untuk mulai menggunakan atau menerapkan matematika dalam kegiatan pertaniannnya.
Penggunaan Math Game Kartu Remi Berhitung (Karetung) Terhadap Kemampuan Operasi Hitung Siswa
Authors: Pertiwi Annisa Bunga
Published: September 2019

Jenis penelitian yang digunakan dalam penelitian ini yaitu quasi eksperimen. desain penelitian yang digunakan yaitu one group pretest-postest design. populasi dari penelitian ini adalah siswa kelas V SDN 8 Rejang Lebong. Teknik pengambilan sampel pada penelitian ini adalah sampling jenuh. Uji coba instrument yang digunakan adalah uji validitas dan uji reliabilitas. Analisa data menggunakan uji prasyarat yaitu uji normalitas dan uji homogenitas dan uji hipotesis menggunakan uji t. Dalam pelaksanaan pembelajaran menggunakan Kartu Remi Berhitung (Karetung) pada operasi hitung terdapat pengaruh yang signifikan antara penggunaan Karetung terhadap kemampuan berhitung siswa SDN 8 Kabupaten Rejang Lebong dengan nilai thit = 48,66 dan thitung ≥ ttabel yaitu 48,66 ≥ 1,68 sehingga H0 ditolak yang artinya H1 diterima. Adapun hasil observasi pada pertemuan I menunjukkan bahwa siswa masih kurang memperhatikan penjelasan guru tentang materi, siswa masih melakukan kecurangan pada permainan math games seperti mencabut kartu sebanyak dua kali, masih salah berhitung dalam bermain yaitu disebabkan karena masih kurangnya kemampuan siswa dalam berhitung sehingga menyebabkannya kesulitan dalam menurunkan kartu remi saat gilirannya memberikan kartu dan membutuhkan waktu yang cukup lama dalam bermain (lembar observasi terlampir). Adapun hasil observasi pada pertemuan II telah menunjukkan hasil yang lebih baik daripada pertemuan I dimana siswa lebih cepat bermain karena telah terbiasa dengan operasi hitung yang diberikan.
Exploring self-assessments in university undergraduate students: how accurate are they?
Authors: Mulrooney Hilda Mary
Published: September 2019

Self-assessment, whereby students are actively engaged in assessing the quality of their work, has been shown to benefit them. It is not routinely carried out in all institutions. This pilot study aimed to explore the extent to which students chose to engage with self-assessment when invited to do so, and how accurate they were when they did. A short pilot tool including qualitative and quantitative elements, was circulated to students within a school of the largest faculty of Kingston University. Students completed the self-assessment and submitted it with their completed assignments. Actual grades achieved were compared with self-assessments. Qualitative data were analysed using basic thematic analysis. The highest average marks achieved were in the group who correctly self-assessed their work. More students incorrectly self-assessed than correctly assessed their work, and almost a third of students did not engage with the activity. Those who incorrectly over-assessed their work had average marks similar to those that did not engage with the activity, significantly lower than the average marks achieved by the incorrect under-assessors and the correct self-assessment groups. Correct self-assessing students were more specific about the skills they demonstrated and the support they used for their assignments.
O Olhar do Benefício além do Risco: construindo um Novo Paradigma em Vigilância Sanitária
Authors: Freitas Vanessa Lorena Sousa de Medeiros , Leandro Kátia Cristina , Navarro Marcus Vinícius Teixeira
Published: September 2019

O controle do risco sanitário é considerado elemento norteador das ações de vigilância sanitária (Visa). Apesar das poucas publicações sobre o tema, existem proposições para incorporação às práxis de Visa, de métodos para tomadas de decisão como o Modelo de Avaliação de Risco Potencial (MARP), que leva em consideração fatores socioeconômicos e não apenas a dimensão probabilística do risco. Por outro lado, autoridades reguladoras têm indicado a necessidade da ponderação de riscos e benefícios para subsidiar o processo de decisão, mas até o final do século passado, a avaliação de benefício não era realizada de forma estruturada. Nos últimos 20 anos, têm-se estabelecido metodologias para registro de medicamentos e alimentos com base na avaliação de riscos e benefícios, continuando o campo da regulação de serviços de saúde centrado no risco. Assim, este estudo teve o objetivo de desenvolver um novo elemento a ser inserido nas práticas de Visa, o benefício, por meio de uma proposta para o conceito de benefício e sua operacionalização. Utilizando a premissa de simetria entre risco e benefício, o modelo desenvolvido foi utilizado como uma das referências na elaboração do novo código sanitário do estado de Santa Catarina, estabelecendo nova definição para Visa, que foi operacionalizada através do Sistema de Informação Estadual de Riscos e Benefícios Potenciais (SIERBP), que começou a ser utilizado em 2017 em unidades hospitalares na avaliação de serviços de endoscopia, centro de material esterilizado, centro cirúrgico, unidade de terapia intensiva, farmácia hospitalar, laboratório, urgência e emergência e unidade de internação, assim como para serviços de diálise. O SIERBP está sendo ampliado para a avaliação de instituições de longa permanência para idosos e segurança do paciente, devendo ser utilizado para todas as áreas de atuação da Visa em Santa Catarina, inclusive as aplicações médicas das radiações ionizantes.
The experiences of metal fans with mental and developmental disorders in the metal music community
Authors: Messick Kyle J. , Aranda Blanca E. , Day Chris
Published: September 2019

A series of interviews were conducted to explore the experience of what it is like to be a member of metal music culture living with mental health issues and/or developmental disabilities. Ten participants were interviewed, three of which had schizophrenia, four with autism spectrum disorder, two had bipolar affective disorder, and one had borderline personality disorder. Thematic analysis was utilized to explore the experiences of people living with various types of mental illness and developmental disabilities in the context of metal, which resulted in the development of three overarching themes. It was found that participants felt that the metal music community was more welcoming to them due to the broad use of lyrics about mental health topics and the prevalence of metal musicians that have mental health concerns. The broad application of mental health topics in metal was seen as having a de-stigmatizing effect towards mental health concerns, but at the cost of accuracy, as topics like schizophrenia are seen as fetishized and inaccurately depicted. Participants reported that the metal community affords its members with mental health issues and developmental disabilities a number benefits including a sense of belonging, the facilitation of mood maintenance, and the management of lesser symptoms. Symptom management appeared to be mitigated by symptom severity and influenced how participants experienced metal music.
Pentingnya efektifitas dan efisiensi dalam pembiayaan pendidikan
Authors: Handayani Suci Handayani
Published: September 2019

One of the main factors that often interfere with the existence of education as an agent of development is the increase in education costs. In developing countries, factors that can cause a reduction in student education include delays between inflation rates and increases in teacher salaries. Cost is an element that determines the budgeting mechanism , determining the cost will affect the level of efficiency and effectiveness of activities in an organization that will achieve a certain goal. activities carried out effectively and efficiently.In an effort to develop a national education system that processes equality, relevance, quality, efficiency and effectiveness in relation to the goals and ideals of education, in reality. In order to achieve optimal educational goals, one of the most important things is to manage costs with both in accordance with the needs of the funds needed. Minimum funding administration includes planning, implementation and supervision. Budget distribution needs to be done strategically and integratively between stakeholders.
Berpikir Kritis dalam Keperawatan sebagai Solusi Peningkatan Self Confidence terhadap klien di Rumah Sakit
Authors: Siregar Anita Denike
Published: September 2019

AbstrakTulisan ini dimaksudkan untuk menumbuhkan kesadaran akan pentingnya berpikir kritis dalam keperawatan yang ditinjau dengan upaya pendalaman pemahaman tentang berpikir kritis dalam keperawatan serta penerapannya untuk klien di rumah sakit,sehingga perawat dapat memutuskan dan melaksanakan asuhan keperawatan yang tepat kepada pasien. Asuhan keperawatan yang dilakukan oleh perawat berdasarkan kajian berpikir kritis juga seyogianya akan meningkatkan rasa percaya diri (Self Confidence) dalam diri Klien,baik Pasien maupun keluarga pasien sehingga perawat tidak hanya memiliki peran membantu penyembuhan namun lebih kepada peningkatan kenyamanan pasien di rumah sakit.Berdasarkan pendekatan kualitatif yaitu metode analisis data,peneliti berusaha menelaah kembali tentang pembelajaran Berpikir kritis dalam keperawatan sehingga memperoleh manfaat: 1) Perawat dapat lebih mengerti arti berpikir kritis sesungguhnya, 2)mengetahui apa saja metode dalam berpikir kritis dan 3)mengenal karakteristik berpikir kritis serta 4) mengetahui penerapan berpikir kritis dan dampaknya terhadap rasa kepercayaan diri klien.Kata kunci : Berpikir kritis,Keperawatan,Self Confidence
ANALISIS TREN DAN POLA HUBUNGAN ANTARA INDEX INTEGRITAS UJIAN NASIONAL (IIUN) DAN NILAI UJIAN NASIONAL (UN) PADA SIWA SMA IPA DI PROVINSI ACEH
Authors: Nasution Mustafa Kamal
Published: September 2019

Penelitian ini bertujuan untuk menganalisis pola (pattern), tren, dan gambaran hubungan antara Nilai Ujian Nasional (UN) dan Index Integritas Ujian Nasioan (IIUN) pada Pra dan Pasca (2015-2017) Ujian Nasional Berbasis Komputer (UNBK) pada siswa SMA jurusan IPA di Provinsi Aceh. Data didapatkan dari hasil publikasi pada website kementerian pendidikan dan Kebudayaan berupa Hasil Ujian Nasional (UN) dan Index Integritas Ujian Nasional (IIUN) dari 103.273 orang siswa/i SMA/sederajat kelas IPA dari seluruh (23) Kabupaten/Kota di Provinsi Aceh. Untuk (1) melihat pola pola (pattern) dan tren dari Pra-Pasca UNBK (3 tahun) perjalanan Ujian nasional, digunakan analisis dengan statistik descriptiv dengan membandingkan rata-rata (mean) dari UN dan IIUN, standar deviasi (SD) UN. Analisis regresi Linear dengan SPPS digunakan untuk mendapatkan hubungan antara IIUN dan UN. Hasil analisis menunjukkan bahwa terjadi perbedaan yang mencolok, dan perubahan yang bertahap antara Pra-dan Pasca pelaksanaan Ujian Nasional berbasis komputer (UNBK) pada siswa SMA/sederajat jurusan IPA di provinsi Aceh. Dalam rentang waktu tiga tahun (2015-2017) didapatkan trend penurunan nilai Ujian Nasional (UN) seiring dengan diiplementasikannya UNBK sehingga Index Integritas Ujian Nasional (IIUN) meningkat pada siswa SMA jurusan IPA di seluruh Kabupaten di Provinsi Aceh. Pada Pra-UNBK, Pola yang muncul adalah bahwa Integritas yang rendah memiliki hasil UN yang tinggi dan SD yang kecil. Pada Pasca-UNBK, tren dan pola semakin bergeser terbalik (arah negatif) dimana, nilai Ujian Nasional semakin mengecil, seiring dengan meningkatnya index integritas pelasanaan ujian Nasioanl (IIUN). Selain itu, Trend dan pola hubungan yang menjadi temuan Ujian Nasional dan Integritas penyelenggaraa UN adalah bahwa hubungan integritas dan nilai UN adalah nyata dan signifikan. hal ini bermakna bahwa selama ini salah satu faktor pada tinggi rendahnya nilai Ujian Nasional Siswa IPA di Provinsi Aceh adalah Integritas pelaksanaannya. Hal ini dapat dibuktikan melalui statistik deskriptif maupun analisis regresif.
Effect of Cement Injection on Shear Behaviour of Jointed Rock based on Mohr-Coulomb Criterion
Authors: Zakri Rizto Salia , Simangunsong Ganda Marihot , Widodo Nuhindro Priagung
Published: September 2019

Common problem in mining activity is instability caused by jointed rock mass. The strength of jointed rock masscan be increased by cement injection. An artificial rock sample made from dental plaster type of moldano tara isused in this study to evaluate the influence of cement injection to the strength of jointed rock sample. The roughnessof joint surface are obtained from the natural rock joints and divided into three groups of Joint RoughnessCoefficient (JRC) values based on Barton criteria. The injection materials are mixture of cement and water withthe ratio of water and cement of 4: 5 and 3: 2. This artificial samples are then subjected to direct shear tests. Thetest results are analyzed by Mohr-Coulomb criterion to obtain the cohesion and internal friction angle. It isrevealed that cohesion and internal friction angle increased for injected rock sample. The strength increase variesby JRC condition. For Sample with JRC value between 8-10, the study find that injection material with water tocement ratio of 4:5 is more effective than cement injection with ratio of 3:2. For JRC value between 12-14, 16-18,and 18-20, it is found that cement injection with ratio of 3:2 is more effective than 4:5.
The effect of opportunity costs on mental fatigue in labor/leisure tradeoffs
Authors: Dora Jonas , van Hooff Madelon , Geurts Sabine , Kompier Michiel A. J. , Bijleveld Erik
Published: September 2019

Most people experience the feeling of mental fatigue on a daily basis. Previous research shows that mental fatigue impacts information processing and decision making. However, the proximal causes of mental fatigue are not yet well understood. In this research, we test the opportunity cost model of mental fatigue, which proposes that people become more fatigued when the next-best alternative to the current task is higher in value. In four preregistered experiments (total N = 430), participants repeatedly reported their current level of fatigue and chose to perform a paid labor task vs an unpaid leisure task. In Study 1, all participants were offered the same labor/leisure choice. In Studies 2 and 3, we manipulated the opportunity costs of a labor task by varying the value of an alternative leisure task. In Study 4, we manipulated the opportunity costs of a labor task by varying the value of that labor task. In all studies, we found that people were more likely to choose for leisure as they became more fatigued. In Studies 2–4, we did not find that the manipulated leisure value influenced the amount of fatigue participants experienced nor the likelihood to choose for leisure. However, in exploratory analyses, in all studies, we found that participants who reported to value the leisure task more, got more fatigued during labor and less fatigued during leisure. Collectively, these results provide cautious support for the opportunity cost model, but they also show that cost-benefit analyses relating to labor and leisure tasks are fleeting.
Science and religion: a rocky relationship shaped by shared psychological functions
Authors: Rutjens Bastiaan T , Preston Jesse Lee
Published: September 2019

This chapter reviews work on the shared psychological functions of science and religion. In doing so, we focus on three of these functions that are of particular importance to human functioning: explanation, control, and meaning. The research that is reviewed indicates that both belief systems can help to address motivational needs pertaining to these functions, albeit in different ways and with somewhat different degrees of success. Morality and mortality are two central domains within which this notion is further explored. We conclude that the psychological functions that belief systems fulfil form a central component of both science and religion, as well as of their complicated relationship.
Observing the Interethnic Friendships in Elementary and Secondary Religion-Based School
Authors: Setiawan Adib Rifqi
Published: September 2019

Friendships provide opportunities to build empathy and practice social skills. Being friends with ethnically diverse peers can create opportunities for academic and social learning different from the opportunities afforded by same-ethnic friendships. Through my observation, I had been finding that elementary and secondary school students are less likely to have friends of a different ethnic — even from the beginning to the end of a single school year, as they progress in school. My observation show that most childhood friendships are formed in classrooms, but children tend to form friendships with others of their own ethnicity, with interethnic friendships decreasing across ages and grades. The observation looked at student and classroom factors that affect the likelihood of children forming friendships across ethnic. On an individual or student level, I looked at age, ethnic, and psychosocial factors, including sociability, internalizing behavior (such as worrying or feeling sad) and externalizing behavior (such as acting out or getting in trouble). I also examined factors related to classroom context, including teacher support, whether teachers treat students with varying levels of academic achievement differently, and competition among students. Results suggest that same-ethnic friendships increase over the school year, with greater increases among white and older children. Externalizing behavior predicted a greater increase in same-ethnic friendships, particularly among ‘domestic’ (Javanese: ‘cah kene dewe’) students. Teachers and classroom context influenced student friendships in two different ways. It suggests that teachers may make a difference in how students select and maintain friends. Classroom support -- measured by student perceptions of teachers' warmth, respect, and trust -- predicted less of an increase in same-ethnic friendships from fall to spring. In last, my observation points to the need not just for diverse schools, but also for teachers to foster classrooms where students and teachers support one another, and social and academic hierarchies are not dominant, which could increase the likelihood of students developing and maintaining interethnic friendships.
Pengaruh Rencana Dan Realisasi Penggunaan Dana Bos Terhadap Kinerja Keuangan Di SMA Al-Islam Krian Sidoarjo
Authors: Sulistyowati Indah , Darno Darno
Published: September 2019

BOS funds are costs allocated by the government specifically to support education in Indonesia. This study aims to examine the effect of BOS budget planning and the realization of the use of BOS funds on financial performance at Al-Islam Krian Sidoarjo High School. The variables used in this study are the BOS budget budget plan and the realization of the use of BOS funds which act as independent variables, as well as financial performance which acts as the dependent variable. The author uses descriptive quantitative methods in this study. The data collection technique carried out in this study was to use primary data obtained directly from the objects studied, namely by distributing questionnaires. The population in this study is the financial report of BOS Al-Islam Krian Sidoarjo High School in 2016-2018. The samples in this study were educators, education staff, and guardians of students who were involved in the BOS management team for the period of 2016 - 2018, with respondents totaling 35 people. The results of the study using multiple linear regression analysis based on the t test can be concluded that BOS budget planning has a significant and positive effect on financial performance and the realization of the use of BOS funds also has a positive and significant effect on financial performance.
Model Financial Dan Teknologi (Fintech) Membantu Permasalahan Modal Wirausaha UMKM Di Indonesia
Authors: Ardiansyah Tedy
Published: September 2019

The objectives of this study are (1) to find out the effect of technology-based financing models in helping entrepreneurial capital problems in society, Indonesia, (2) Knowing the types of technology-based financing models to help entrepreneurial capital problems in society, Indonesia, (3) Helping MSMEs capital in the future, (4) Helping solutions to business capital problems in entrepreneurial activities. Qualitative descriptive research is aimed at describing and describing existing phenomena, both natural and human engineering, which pay more attention to the characteristics, quality, and interrelationship between activities. In addition, this study does not provide treatment, manipulation or alteration on the variables studied, but describes a condition that is. Data collection techniques are derived from secondary data while the research instrument utilizing the results of the research that has been done both comes from journals, the Internet and books. From several research results illustrate that: (1) activities related to finance and technology are indeed needed by MSMEs with the current situation, (2) There is a relationship between financial and technological models (fintech) in helping MSME entrepreneurial capital problems, (3) Models financial and technology (fintech) consists of several kinds, among others: (a) crowd funding and peer to peer lending, (b) Market aggregator, (c) Risk and Investment Management and (d) Payment, settlement and clearing. (4) The results of research that greatly help MSME entrepreneurs in obtaining capital to maintain and improve business are financial and technology models (fintech) which lead to Crowd funding and Peer to Peer (P2P) lending, (5 in Indonesia are more familiar with P2P where has been implemented in activities including: (a) Agricultural Capital Startup, (b) Livestock Capital Startup and (c) Fisheries Capital Startup, (6) Future capital challenges have definite answers to the development of alias finance and technology fintech.
High-temperature oxidation resistance behavior of porous Ni-16Cr-9Al materials
Authors: Wu Liang , Yang Ge , Xu Yang , Xiao Yifeng , Li Xi , Xu Yanfei , Qian Jinwen , Ou Yan , Zhang Minghua , Zhang Qiankun , He Yuehui
Published: September 2019

The oxidation behavior of porous Ni-16Cr-9Al alloys at 800 and 1 000 °C was studied using the isothermal temperature oxidation method. The differences in surface morphology, phase and pore structure between oxidized and non-oxidized materials were characterized by means of scanning electron microscopy, X-ray diffraction analysis and mercury intrusion porosimetry. The results revealed that the oxidation rate of the samples which were oxidized for 420 h at 800 °C was 0.012%2 h−1 and the oxidation products were Al2O3 and Cr2O3. The oxidation rate of the samples which were oxidized for 390 h at 1 000 °C was 0.415%2 h−1 and the oxidation products were Al2O3, Cr2O3 and Ni(Cr, Al)2O4. All the oxidation kinetics curves obeyed the parabolic law, exhibiting excellent high temperature oxidation resistance.
Tính toán vách phẳng bê tông cốt thép có lỗ cửa theo mô hình thanh chống giằng (STM)
Authors: Thu Nguyễn Minh , Tùng Phạm Thanh
Published: September 2019

Vách và lõi cứng bê tông cốt thép (BTCT) là kết cấu chịu lực không thể thiếu trong nhà cao tầng, nhưng cho tới nay các tiêu chuẩn xây dựng hiện hành của Việt Nam chưa đề cập nhiều đến việc tính toán loại kết cấu này. Hiện tại, việc tính toán cốt thép cho vách có nhiều phương pháp như phương pháp phân bố ứng suất đàn hồi, phương pháp giả thiết vùng biên chịu mô men, phương pháp xây dựng biểu đồ tương tác, phương pháp thanh chống giằng (Strut-and-Tie Model)... Nội dung chính của bài báo là giới thiệu phương pháp tính toán vách BTCT có lỗ cửa theo mô hình thanh chống-giằng trong ACI 318-19, mô hình này được sử dụng ở nhiều nước trên thế giới nhưng lại ít được áp dụng trong thiết kế tại Việt Nam. Kết quả tính toán cốt thép được so sánh với số liệu tính theo phương pháp phần tử biên.

Từ khóa:

vách phẳng; BTCT; lỗ cửa; thanh chống - giằng; ACI 318.
Dự đoán đường cong lực-chuyển vị của dầm đơn giản bê tông cốt thép một nhịp chịu uốn bốn điểm có cốt thép bị ăn mòn
Authors: Nguyên Nguyễn Đăng , Hai Dương Văn , Tuấn Văn Khắc
Published: September 2019

Ăn mòn cốt thép là một trong những vấn đề thường gặp đối các công trình bê tông cốt thép sau một thời gian công trình đưa vào sử dụng. Nghiên cứu này đề xuất mô hình dự báo đường cong lực-chuyển vị của dầm đơn giản bê tông cốt thép chịu uốn bốn điểm có cốt thép bị ăn mòn. Mô hình xem xét ảnh hưởng của sự ăn mòn cốt thép bằng cách sử dụng mô hình vật liệu suy giảm do ăn mòn cho bê tông, cốt thép, và lực dính. Diện tích còn lại của cốt thép dọc được tính toán dựa vào mức độ ăn mòn trung bình. Ảnh hưởng của cốt đai bị ăn mòn đến ứng xử nén của bê tông lõi và lực dính được tính toán sử dụng diện tích mặt cắt ngang còn lại nhỏ nhất. Kết quả thí nghiệm uốn bốn điểm của 11 dầm không bị và bị ăn mòn trong các tài liệu tham khảo được sử dụng để đánh giá mức độ chính xác của mô hình dự báo.

Từ khóa:

dầm bê tông cốt thép bị ăn mòn; khả năng chịu lực; chuyển vị; sự ăn mòn; phân tích mômen-độ cong.
Tính toán chịu lực cho giải pháp khoan và neo cấy bu long vào bê tông theo tiêu chuẩn châu Âu
Authors: Tâm Vũ Ngọc , Sơn Hoàng Khánh , Amol Singh , Thắng Nguyễn Trường
Published: September 2019

Khoan và neo cấy bu long vào bê tông để liên kết các vật thể kiến trúc, bộ phận kết cấu và thiết bị cơ điện với kết cấu chịu lực chính của công trình là một giải pháp thường gặp trên thực tế. Hiện nay ở Việt Nam chưa có tiêu chuẩn chính thức và quy trình công nghệ trong khi còn có ít thông tin của các nước tiên tiến trên thế giới cho việc tính toán loại liên kết này. Bài báo này tổng hợp và giới thiệu hệ thống tiêu chuẩn châu Âu gồm tiêu chuẩn thiết kế, tiêu chuẩn về kiểm định sản phẩm, chứng chỉ sản phẩm, nguyên lý tính toán dựa trên các dạng phá hoại cần phải tránh được quy định trong tiêu chuẩn và một số ví dụ thực tế để minh họa cho quy trình thiết kế hệ thống liên kết khoan neo cấy. Kết quả cho thấy cùng với cường độ của từng bu long, sự toàn vẹn của bê tông dưới tác động của cả cụm bu long cũng là một yếu tố quan trọng khi kiểm tra khả năng chịu lực của cả hệ thống khoan cấy. Bên cạnh đó, chiều sâu neo bu long vào bê tông cũng cần được tính toán sao cho vừa đảm bảo an toàn chịu lực, vừa hợp lý về kinh tế mà không nên chọn cố định theo một thông số kinh nghiệm.

Từ khóa:

chịu lực; khoan cấy; bu long; bê tông; tiêu chuẩn châu Âu.
ateneo de morbilidad y mortalidad como herramienta de aprendizaje colectivo en un servicio de cirugía general
Authors: Valsangiacomo Pablo , Telles Leandro , González Daniel
Published: September 2019

Introducción. La enseñanza en la clínica quirúrgica representa un desafío docente ya que comprende el pregrado, el posgrado, así como a los docentes en formación. En la misma debemos de incluir aspectos docentes, asistenciales, de investigación así como de gestión clínica.

Objetivos. Analizar el ateneo de morbilidad y mortalidad como herramienta docente mediante el análisis del proceso asistencial del paciente complicado.

Método En el periodo mayo 2017 a mayo 2018 se registraron todos los pacientes complicados en la Clínica Quirúrgica 3. 

Resultados Se analizaron 38 pacientes complicados de un total de 470 operados de coordinación (8%). El tiempo al diagnóstico de la complicación fue de 4 días y la media de internación fue de 14 días. De acuerdo a Dindo – Clavien se clasificaron en los siguientes grados: I: 6, II:8, IIIa: 3, IIIb: 5, IVa: 4,IVb: 5 yV: 7 casos. La mortalidad fue del 1,5%, vinculada a la cirugía compleja, pacientes añosos y al diagnóstico tardío de la complicación.

Conclusiones El ateneo de morbilidad y mortalidad constituye una herramienta educativa para todos los niveles formativos en la clínica quirúrgica. Conocer las complicaciones, su frecuencia, su tipo y su forma de prevenirlas nos permitió elaborar estrategias para realizar el diagnóstico precoz.
Divertículo duodenal perforado. Reporte de caso
Authors: Armand Ugon Gustavo , González Daniel , Arciénega Pilar , Rodríguez Gabriela
Published: September 2019

La perforación de un divertículo duodenal (Dd) es una complicación excepcional, no presenta clínica patognomónica.

Paciente de 60 años, mujer, sin antecedentes de dispepsia ulcerosa. Dolor epigástrico intenso, transfixiante, 8 horas de evolución. Dolor a la palpación de hipocondrio derecho.

Paraclínica humoral: leucocitosis 14.200, resto normal. Tomografía: Dd perforado y retro-peritonitis.

Mediana supraumbilical. Decolamiento duodeno-céfalo-pancreático, identificación y resección del Dd, rafia duodenal en dos planos (poliglactina-910, surjet), toilette y drenaje retroperitoneal.

Postoperatorio: evolución sin complicaciones, alta a la semana.

Resolvimos la perforación mediante duodenorrafia, no realizamos exclusión duodenal ni gastro-yeyuno-anastomosis (estos dos últimos están incluidos en el tratamiento más recomendado).
Utilidad de la laparoscopía en el tratamiento de abscesos post apendicectomía. Casos clínicos (video)
Authors: Chinelli Javier , Hernández Rodrigo , Rodríguez Temesio Gustavo
Published: September 2019

Introducción

Los abscesos residuales post-apendicectomía aparecen en un 4% en las formas simples y hasta en el 20% de las complicadas. El tratamiento puede ser conservador mediante antibioticoterapia, aunque los mayores de 4-5 cm requerirán drenaje, que puede ser percutáneo (de elección) o quirúrgico (laparotómico o laparoscópico). El abordaje laparoscópico permite una exploración completa de la cavidad abdomino-pélvica y el tratamiento de uno o varios abscesos, con menor dolor postoperatorio e infecciones parietales en comparación al abordaje laparotómico.

 Descripción de contenidos

 Caso 1: mujer, 19 años, apendicectomía laparoscópica (edematosa). Al 7º día dolor abdominal, taquicardia y fiebre, leucocitosis elevada. TC: absceso retrocecal de 6 cm. Se realiza drenaje laparoscópico completo y sin incidentes.

 Caso 2: hombre, 32 años, apendicectomía laparoscópica (gangrenosa). Ileo postoperatorio, taquicardia y polipnea, TC al 4º día: absceso del Douglas y leve cantidad de líquido libre intraabdominal. Se realiza drenaje laparoscópico de absceso del Douglas y toilette peritoneal.
On the approximate solution of the boundary value problem for the Helmholtz equation with impedance condition
Authors: Aliev A. R. , Heydarov R. J.
Published: September 2019

In this work, we present a justification of collocation method for integral equation of the impedance boundary value problem for the Helmholtz equation. We also build a sequence which converges to the exact solution of our problem and we obtain an error estimate.
Connection of crystal faceting with the mechanism of its formation
Authors: Fedorov P. P. , Osiko V. V.
Published: September 2019

The observed formation of nano- and microcrystals devoid of faceting in low-temperature processes of their formation can be associated with the implementation of a non-classical crystal growth mechanism by aggregation and oriented splicing of particles. The observation is illustrated on CaF2 examples.
Structure and age of the fluorite-berillium deposit of the field Rainbow, Western Sayan Mountains: to the problem of assessment of metallogenic prospects of the territory
Authors: Lykhin D. A. , Yarmolyuk V. V. , Vorontsov A. A. , Travin A. V.
Published: September 2019

The age and geochemical parameters of the muscovite-fluorite-euclase-beryl Raduga deposit, which is located within the Kizir-Kazyr zone of rare-metal magmatism, are determined. In contrast to other deposits and ore occurrences of the zone, represented by alkaline granites characterized by rare metal mineralization, the Raduga deposit is associated with metasomatites in carbonate rocks. The age of the deposit, estimated at 40Ar/39Ar by the muscovite method of beryllium fluorite-muscovite greisens, is 469.3± 4.5Ma. It corresponds to the age of the ore-bearing alkaline granites of the zone. The dikes which occur within the deposit are identical by the composition to the dikes of rare-metal alkaline granitic massifs, one of which is located in a few kilometers from the deposit. The nature of the ore Be-Li mineralization of the deposit is in good agreement with the geochemical specialization of the Early Paleozoic Kizir-Kazyr metallogenic zone. The revealed features of the relationship between Raduga deposit and rare-metal deposits in alkaline granites suggests a variety of mechanisms involved in the formation of rare-metal deposits of the Kizir-Kazyr zone. Thus, it allows to expand approaches for prediction and exploration of rare-metal deposits in the region.
Analisis Sentiment pada Sosial Media Twitter Menggunakan Naїve Bayes Classifier dengan Feature Selection Particle Swarm Optimization dan Term Frequency
Authors: Cahyono Yono
Published: September 2019

Pengguna media sosial saat ini sangat besar; dimana setiap orang mengungkapkan pendapat; komentar; kritik dan lain-lain. Data tersebut memberikan informasi yang berharga untuk dapat membantu orang atau organisasi dalam pengambilan keputusan. Jumlah data yang sangat besar tidak mungkin bagi manusia untuk membaca dan menganalisis secara manual. Ansalisis Sentiment merupakan proses dalam menganalisis; memahami; dan mengklasifikasi pendapat; evaluasi; penilaian; sikap; dan emosi terhadap suatu entitas tertentu seperti produk; jasa; organisasi; individu; peristiwa; topik; guna mendapatkan informasi. Penelitian ini bertujuan untuk memisahkan tweets berbahasa Indonesia pada media sosial twitter kedalam kategori positif; negatif dan netral. Metode naїve bayes Classifier (NBC) dengan feature selection Particle Swarm Optimization (PSO) diterapkan pada dataset untuk mengurangi atribut yang kurang relevan pada saat proses klasifikasi. Hasil pengujian menunjukan bahwa algoritma Naïve Bayes Classifier dengan feature selection Particle Swarm Optimization (PSO) menggunakan parameter term frequency (TF) dengan akurasi 97;48%.
Pengembangan Algoritma Stemming Bahasa Indonesia dengan Pendekatan Dictionary Base Stemming untuk Menentukan Kata Dasar dari Kata yang Berimbuhan
Authors: Zulfikar Ahmad Fikri
Published: September 2019

Information Retrieval adalah studi tentang sistem pengindeksan; pencarian; dan mengingat data; khususnya teks atau bentuk tidak teratur lainnya. Pada proses tahap indexing didalam information retrieval terdapat proses stemming yaitu proses mengubah suatu kata bentukan menjadi kata dasar. Proses stemming sangat tergantung kepada bahasa dari kata yang akan di stemm. Hal ini dikarnakan; dalam melakukan proses stemming harus mengaplikasikan aturan morfologikal dari suatu bahasa. Bahasa Indonesia memiliki kata berimbuhan yang lebih kompleks dibandingkan dengan Bahasa Lainnya. Terdapat dua pendekatan dalam proses stemming yaitu: Light Stemming dan Dictionary Base Stemming. pendekatan dengan proses Dictionary Base Stemming dapat memberikan solusi untuk men-stemm kata berimbuhan dalam Bahasa Indonesia; karena menggunakan struktur morfologi untuk mengekstrak kata berimbuhan menjadi kata dasar (root word). pada penelitian ini akan menggunakan pendekatan proses Dictionary Base Stemming untuk mengembangkan Algoritma Stemming Bahasa Indonesia dalam menentukan kata dasar (root word) pada kata yang berimbuhan dengan Metode Pengembangan Sistem OOAD.
Penerapan Resampling dan Adaboost untuk Penanganan Masalah Ketidakseimbangan Kelas Berbasis Naϊve Bayes pada Prediksi Churn Pelanggan
Authors: Mulyati Sri , Yulianti Yulianti , Saifudin Aries
Published: September 2019

Banyaknya operator seluler mendorong persaingan usaha yang sangat ketat. Kemudahan pelanggan untuk berpindah ke pesaing merupakan perhatian utama bagi bagian CRM (Customer Relationship Management), karena untuk mendapatkan pelanggan baru membutuhkan biaya yang jauh lebih mahal daripada mempertahankan pelanggan yang sudah ada. Untuk mengambil tindakan yang tepat dalam mempertahankan pelanggan harus mengetahui kecenderungan pelanggan apakah akan mengalami churn atau tidak. Prediksi kecenderungan pelanggan dilakukan dengan menggunakan model data mining. Pada penelitian ini akan diterapkan teknik resampling dan teknik ensemble AdaBoost untuk memperbaiki kinerja pengklasifikasi sedangkan untuk mengukur kinerja model digunakan software RapidMiner. Hasil penelitian menunjukkan bahwa model integrasi random oversampling, AdaBoost, dan Naïve Bayes memiliki kinerja yang lebih baik karena memiliki nilai AUC (Area Under the ROC (Receiver Operating Characteristic) Curve) yang lebih baik.
Aplikasi Pembelajaran Do'a Harian untuk Anak Usia Dini Berbasis Android
Authors: Santoso Bodi , Pebriyani Okky
Published: September 2019

Mempelajari doa harian merupakan salah satu kegiatan pembelajaran anak pada usia dini. Seperti kita ketahui ada berbagai macam buku pembelajaran mengenai doa harian, namun isi dari buku tersebut tidak bersifat interaktif dan menarik. Untuk membangkitkan motivasi minat belajar anak usia dini terhadap doa harian perlu dikembangkan suatu metode pembelajaran yang menarik dimanapun dan kapanpun mereka berada tanpa harus membawa buku tentang doa harian atau tidak harus menghabiskan banyak waktu berdiam diri di depan sebuah laptop dan personal komputer. Untuk mengatasi masalah tersebut, maka perlu diadakan perbaikan pada sistem yang sedang berjalan dengan membuat aplikasi pembelajaran doa harian untuk anak usia dini yang diharapkan dapat mendukung proses pembelajaran. Metode yang digunakan dalam penelitian ini adalah SDLC (system developmen life cyele). Beberapa tahapan dalam metode ini adalah analisis perancangan sistem dan implementasi. Pada penelitian ini dibuat suatu sistem aplikasi berbasis android, sehingga tujuan dari pembuatan sistem ini adalah pembelajaran doa harian menjadi lebih efektif dan menarik. Hasil penelitian ini berupa aplikasi pembelajaran doa harian untuk anak usia dini pada smartphon berbasis Android yang menyajikan doa harian dalam bentuk elemen teks, gambar dan suara yang dapat menarik perhatian anak - anak. Pada aplikasi ini juga terdapat kuis tentang doa harian anak yaitu kuis pilihan ganda dan kuis tebak gambar.
Perancangan Aplikasi Augmented Reality Pembelajaran Tata Surya dengan Menggunakan Marker Based Tracking
Authors: Kusuma Susanna Dwi Yulianti
Published: September 2019

Teknologi saat ini telah menjadi bagian dari kehidupan manusia, banyak teknologi diciptakan untuk menjadi kehidupan manusia. Salah satunya, teknologi peralatan telekomunikasi atau yang biasa kita sebut smartphone. Smartphone tidak hanya sebagai alat telekomunikasi saja tetapi banyak fitur yang sangat membantu dalam kehidupan sehari-hari, seperti media pembelajaran, baik itu media pembelajaran berupa tulisan maupun gambar. Tata surya adalah ilmu dasar yang bisa kita dapatkan di sekolah. Tidak adanya laboratorium IPA dapat diuji di sekolah-sekolah yang digunakan sebagai ruang praktis dan mendukung tata surya, sehingga siswa akan kehilangan kesempatan untuk mengembangkan keterampilan, melakukan pengamatan dan mengurangi rasa ingin tahu siswa. Dengan demikian buku menjadi satu-satunya media untuk mempelajari tata surya. Augmented reality adalah teknologi yang mengubah dunia nyata dan dunia dua dimensi yang diproyeksikan dalam ruang nyata. Augmented reality telah berkembang sebagai media pembelajaran di banyak bidang ilmiah. Dengan memanfaatkan buku sebagai satu-satunya media maka penulis menggunakan buku teks sebagai marker untuk Augmented reality dengan metode marker tracking yang dapat digunakan di android.
TOPOLOGI KUAT DAN LEMAH PADA KOLEKSI OPERATOR KONTRAKSICT(H)
Authors: Rudiana Yulianti , Akbar Dzikrullah
Published: September 2019

Setiap ruang Hilbert merupakan ruang topologis. Oleh karena itu, koleksi semua pemetaan linear kontinu pada ruang tersebut juga merupakan ruang topologis. Ruang topologis kuat dan ruang topologis lemah berkorespondensi dengan kekovergenan kuat dan kekovergenan lemah. Jika diberikan ruang Hilbert H, pada koleksi semua operator kontraksi Ct(H), dapat dibangun oleh suatu ruang metrik. Paper ini membahas tentang topologi operator kuat dan topologi operator lemah pada Ct (H). Ruang topologis termetrik lengkap adalah ruang topologis yang dibangun dari suatu ruang metrik lengkap. Dapat ditunjukkan bahwa, ruang topologis operator kuat dan ruang topologis operator lemah merupakan ruang topologis yang separabel termetrik lengkap.
KENYAMANAN TERMAL KLIMATOLOGIS KOTA-KOTA BESAR DI PULAU SULAWESI BERDASARKAN TEMPERATURE HUMIDITY INDEX (THI)
Authors: B Femmy Marsitha , Pattipeilohy Wendel Jan , Virgianto Rista Hernandi
Published: September 2019

Meningkatnya urbanisasi dan berkurangnya ruang terbuka hijau di wilayah perkotaan menyebabkan permasalahan pemanasan perkotaan, yaitu fenomena Urban Heat Island (UHI) yang akan berimplikasi kepada tingkat kenyamanan termal yang dapat dirasakan penduduk urban di luar ruangan. Penelitian ini mengkaji tingkat kenyamanan termal secara klimatologis serta kecenderungannya di kota-kota besar di Pulau Sulawesi dengan menggunakan indeks THI. Dua variabel iklim digunakan untuk menghitung indeks THI, yaitu suhu udara rata-rata harian dan kelembapan relatif harian selama periode 1985-2012 di 6 titik pengamatan yang mewakili masing-masing kota. Formula THI yang digunakan adalah formula dengan batas kenyamanan yang telah dimodifikasi untuk iklim tropis. Analisis klimatologis menunjukkan Palu dan Mamuju merupakan kota dengan kandungan uap air yang relatif rendah dengan suhu yang relatif tinggi secara klimatologis jika dibandingkan dengan kota lainnya. Sehingga, kedua kota tersebut memiliki tingkat kenyamanan yang paling rendah dirasakan oleh populasi perkotaan secara berturut yaitu 10,2% dan 24,7%, sedangkan  Manado dan Minahasa Utara merupakan kota yang paling nyaman dengan prosentase, yaitu 31,6 % dan 31,9%. Indeks THI tersebut cenderung mengalami peningkatan kecuali di Mamuju dengan laju terbesar dialami oleh Makassar sebesar 0,03⁰C per tahun atau 0,3⁰C per 10 tahun dengan koefisien determinasi sebesar 41,6%.
ANALISIS CLUSTER MENGGUNAKAN ALGORITMA K-MEANS CLUSTER UNTUK CULSTERING JENIS PENYAKIT MENULAR PADA PUSKESMAS DI KECAMATAN KOTA TANGERANG
Authors: Rachma Aninda , Aden Aden , Rusdiana Yulianti
Published: September 2019

The research in this paper aims to cluster the types of diseases in the sub-district Puskesmas in the city of Tangerang, to facilitate the handling and improvement of the environment, and to find out which disease is the most dominant in each cluster, during clustering at the sub-district Puskesmas in Tangerang City. The subject of this research is the result of clustering of infectious diseases with the method used is Cluster Analysis using the K-means Cluster Algorithm using calculations using SPSS 22. And the results of this study can find out the type of disease with each Puskesmas according to the sub-district, for which clusters are determined there are four clusters where each cluster is a type of infectious disease itself, namely pulmonary Tuberculosis, pneumonia, dengue, and diarrhea, for each cluster each divided according to its sub-district or Puskesmas. With these results, it can be concluded that the clustering results know which sub-districts have contracted infectious diseases according to the cluster formed.
FAKTOR - FAKTOR YANG MEMPENGARUHI MINAT KONSUMEN DALAM MENGGUNAKAN JASA TRANSPORTASI KRL / COMMUTER LINE DENGAN METODE ANALISIS FAKTOR
Authors: Ningsi Besse Arnawisuda , Putriyani Ani
Published: September 2019

The purpose of this study was to find out how many factors were formed through the reduction process, to determine which factors most dominantly influence consumer interest in using KRL Commuter Line transportation services, to find out how much influence the most dominant factors influence consumer interest in using KRL Commuter transportation services Line. In this study, the Factor Analysis method was used with principal component analysis techniques using SPSS software. 7 stages of factor analysis, namely: (1) formulating a problem, (2) Variable Interference Test, (3) forming a correlation matrix, (4) determining factor analysis methods, (5) extracting factors, (6) rotating factors, and (7) interpret factors. Based on the results of the study, the number of factors formed from the reduction process is 7 factors. Consisting of one factor (F1) with a correlation value of 0.608, factor two (F2) with a correlation value of -0.277, factor three (F3) with a correlation value of -0.246, factor four (F4) with a correlation value of 0.419, factor five (F5) with the correlation value is 0.716, factor six (F6) with a correlation value of -0.392, factor seven (F7) with a correlation value of 0.570. The most dominant factor affecting consumer interest in using KRL Commuter Line transportation services is factor five (F5) with a correlation value of 0.716 or 71.6%.
Medidas Antropométricas para o Acompanhamento do Estado Nutricional de Crianças e Adolescentes com Câncer, o que utilizar na Prática Clínica?
Authors: Coradine Andréa Vieira Pereira , Pianovski Mara Albonei Dudeque , Rabito Estela Iraci
Published: September 2019

Introdução: A avaliação do estado nutricional de crianças e adolescentes com câncer é fundamental para a elaboração do plano de cuidados nutricionais adequado, entretanto as alterações da própria doença e do tratamento podem dificultar essa avaliação. Objetivo: Descrever quais são os métodos antropométricos mais utilizados na avaliação do estado nutricional de crianças e adolescentes com câncer. Método: Realizou-se revisão sistemática da literatura de publicações referentes à avaliação nutricional de crianças e adolescentes com câncer, dos últimos dez anos nas bases de dados MEDLINE, PubMed, Web of Science e LILACS. Resultados: Foram incluídos nove artigos, nos quais foram destacados a amostra, o objetivo e os métodos de avaliação nutricional utilizados. A avaliação de dados isolados da antropometria como peso e estatura de crianças e adolescentes com câncer não é suficiente, uma vez que essa população apresenta alteração da composição corporal. Conclusão: Na prática clínica, a utilização da circunferência do braço, circunferência muscular do braço e dobra cutânea tricipital é indicada para avaliação e acompanhamento da evolução do estado nutricional.
Osmanlı Kudüs’üne Ait H. 1195/ M. 1781 Tarihli Keşif Defteri (Değerlendirme ve Transkripsiyon)
Authors: EROĞLU MEMİŞ Şerife
Published: September 2019

Çalışma, Kudüs-i Şerîf’te
bulunan Mescid-i Aksa, Kubbetü’s-Sahra ve diğer mübarek mekânların tamire
ihtiyaç duyulan bölümlerinin keşif ve ölçümlerini içeren ve ehl-i vukûf olarak adlandırılan bilirkişilerce
hazırlanan H. 1195/ M. 1781 tarihli keşif defterini konu edinmiştir. Deftere
ilişkin bir değerlendirme sunmayı amaçlayan çalışmada, 18. yüzyılda Kudüs’te
tamir ve bakıma ihtiyaç duyan mahallerin, kullanılan malzemenin, ölçü
birimlerinin, fiyatların neler olduğu soruları da cevaplanmaya çalışılacaktır.
Bu bağlamda çalışma üç bölümden oluşacaktır. Öncelikle Osmanlı tatbikinde vakıf
mülklerin tamir ve bakımları konusu açıklanmaya çalışılacaktır. Sonrasında
çalışma konusu olan Keşif Defteri şekil ve içerik bakımından incelenecektir.
Üçüncü bölümde ise ulaşılan sonuçlara ilişkin bir değerlendirme yapılarak,
defterde yer alan veriler tablo halinde sunulacaktır.