bluuebunny/crossref_metadata_2025 huggingface dataset:
Đánh giá những nhân tố gây ảnh hưởng đến chất lượng tường vây, tường chắn đất trong các dự án xây dựng ở Việt Nam
Authors: Khoa Nguyễn Dương Đăng , Sỹ Đỗ Tiến , Hải Phạm Thanh
Published: February 2022

Thi công tầng ngầm rất phức tạp, chứa tiềm ẩn nhiều rủi ro khác nhau. Sự cố công trình luôn là điều đáng tiếc gây thiệt hại to lớn về tính mạng, tài sản, công sức của mọi người. Phần ngầm quan trọng của công trình chính là tường vây, tường vây được hiểu là phần kết cấu dưới lòng đất vây xung quanh công trình. Công tác quản lý rủi ro khi thi công tường vây là công tác quan trọng, giúp nhà thầu chủ động, kiểm soát giảm thiểu rủi ro để thực hiện thành công trong công tác thi công tường vây nói riêng và cả dự án nói chung. Bài báo này nhằm tìm ra những nhân tố rủi ro khi thi công tường vây, tường chắn đất trong các dự án xây dựng ở Việt Nam. Từ đó, nó  góp  phần hỗ trợ người quản lý dự án trong việc đánh giá hiệu quả về chất lượng của dự án.
Đánh giá ảnh hưởng của các yếu tố đến hiệu quả xử lý nước thải của việc ứng dụng bùn hạt hiếu khí trên mô hình công nghệ SBR
Authors: Doanh Phạm Văn , Nga Trần Thị Việt , Minh Nguyễn Bình
Published: February 2022

Nuôi cấy và sử dụng bùn hạt hiếu khí trên mô hình công nghệ bể phản ứng theo mẻ SBR trên thế giới bắt đầu từ những năm 1970 và được nghiên cứu sâu trong những năm sau đó với các chất nền dùng để nuôi cấy khác nhau như: glucose, acetate, ethanol, mật mía, đường, tinh bột, phenol, axit phtalic, chloroanilines, rượu tert-butyl, và nước thải tổng hợp khác. Hiệu quả xử lý nước thải (XLNT) của Bùn hạt hiếu khí phụ thuộc vào rất nhiều yếu tố như: Tải trọng chất hữu cơ, thời gian lắng, nhiệt độ, độ pH, lưu lượng sục khí... Trong bài báo này, trình bày sự ảnh hưởng của các yếu tố trên đối với hiệu quả XLNT của ứng dụng Bùn hạt hiếu khí trên mô hình công nghệ SBR quy mô phòng thí nghiệm. Nghiên cứu trên mô hình bể SBR làm bằng nhựa acrylic trong suốt có đường kính ống 0,110 (m), chiều cao 1 (m), chiều cao chứa nước là 0,8 (m), thể tích làm việc của bể là 2,5 (lít). Bể SBR cùng làm việc với 6 chu kỳ trong 1 ngày, thời gian 1 chu kỳ là 4 giờ, trong 1 chu kỳ gồm 4 pha: pha nạp nước 1-2 (phút), pha sục khí 180 (phút), pha nghỉ 20 - 30 (phút), pha xả 10 - 15 (phút). Nước đầu vào cho mô hình là nước thải nhân tạo có tải trọng hữu cơ ở các mức khác nhau. Kết quả thí nghiệm đạt được như sau: loại bỏ trên 92 % COD, 90 % NH4+ -N đối với nước thải có OLR từ 1,0 - 1,2 kgCOD/m3.ngày; trên 90 % COD, 89 % NH4+ -N đối với nước thải có OLR từ 2,7 - 3,0 kgCOD/ m3.ngày; COD từ 60 - 92 %, NH4+ -N từ 58 - 90 %, T-N từ 15 - 48 %, T-P từ 20 - 21 % nếu lưu lượng sục khí đạt 1,5 - 4,5 (lít/phút); nhiệt độ môi trường từ 25 - 350C hầu như không ảnh hưởng đến hiệu quả xử lý của bùn hạt hiếu khí; pH càng thấp thì khả năng xử lý của bùn hạt càng kém và thiếu ổn định. Tổng thời gian thí nghiệm là 55 ngày.
Hiệu quả gia cố nền đất yếu bằng phương pháp đầm nén động
Authors: Phấn Tạ Văn
Published: February 2022

Đầm nén động là một phương pháp được sử dụng để tăng mật độ của đất khi có một số hạn chế nhất định dưới bề mặt mà các phương pháp khác không phù hợp. Quá trình này liên quan đến việc thả một quả nặng nhiều lần xuống đất với những khoảng thời gian cách nhau đều đặn. Tác động của sự rơi tự do tạo ra các sóng ứng suất giúp làm đặc chắc đất. Những sóng mạnh này có thể xuyên qua tới 10 m. Mức độ nén phụ thuộc vào trọng lượng của búa, độ cao rơi xuống và khoảng cách giữa các vị trí mà búa được thả. Hầu hết các loại đất có thể được cải thiện bằng đầm nén động. Tiến độ thi công nhanh, tiết kiệm chi phí, thích ứng tốt với các dự án quy mô lớn.
Ứng dụng BIM trong đào tạo kiến trúc tại trường Đại học Xây dựng Miền Tây
Authors: Đan Nguyễn Thị Tâm
Published: February 2022

Trong bối cảnh công nghệ BIM đang được áp dụng rộng rãi trong ngành xây dựng trên thế giới và ở Việt Nam thì việc đào tạo nguồn nhân lực BIM là vấn đề cấp thiết hiện nay. Bài viết này trình bày tổng quan về việc ứng dụng BIM trong đào tạo và đề xuất một số giải pháp nhằm đẩy mạnh ứng dụng BIM trong đào tạo ngành kiến trúc tại trường Đại học Xây dựng Miền Tây.
Nghiên cứu thiết kế và chế tạo máy in 3D bê tông
Authors: Chiến Lê Cao , Tuấn Nguyễn Văn , Thành Lê Trung , Phương Phùng Thị Mai
Published: February 2022

Công nghệin 3D bê tông hiện nay là đại diện điển hình của ngành xây dựng vềviệc áp dụng công nghệcủa Cáchmạng công nghiệp lần thứtư vào kỹthuật xây dựng hiện đại. Đểcó thểhiện thực hoá kỹthuật in 3D bê tôngtrong chếtạo các cấu kiện vừa có khảnăng chịu lực tốt vừa có hình dáng kiến trúc, thẩm mỹđẹp thì máy in 3Dbê tông chính là công cụquan trọng nhất. Bài báo này trình bày kết quảnghiên cứu thiết kếvà chếtạo một máyin 3D bê tông cỡlớn điển hình có kích thước tổng thể4,92x2,53x2,53 m và kích thước cấu kiện lớn nhất cóthểin được lên đến 1,8x1,8x2,5 m. Đây là sản phẩm máy in 3D bê tông đầu tiên của Việt Nam.
Ảnh hưởng của hàm lượng bột đá đến tính chất của vật liệu composite nhựa gỗ trên cơ sở nhựa polyethylene tái chế
Authors: An Nguyễn Quý , Hùng Đào Quốc , Đạt Trịnh Minh , Long Lê Văn
Published: February 2022

Trong sản xuất vật liệu composite nhựa gỗ, để giảm chi phí sản xuất và cải thiện một số tính chất của vật liệu, việc sử dụng các chất độn khoáng là rất cần thiết. Trong bài báo này, ảnh hưởng của bột đá đến tính chất của vật liệu composite nhựa gỗ được chế tạo trên cơ sở nhựa polyethylene tái chế và bột gỗ đã được nghiên cứu. Kết quả nghiên cứu cho thấy: việc bổ sung bột đá với hàm lượng phù hợp đã cải thiện khả năng gia công của vật liệu ở trạng thái nóng chảy, cũng như các tính chất cơ lý khác như độ bền kéo, độ bền uốn. Khi bổ sung bột đá với hàm lượng 15 % khối lượng so với bột gỗ và nhựa (pkl), vật liệu cho tínhchất tối ưu nhất với độ bền kéo tăng khoảng 20%  (từ 10,84 MPa lên 13,16 MPa), độ bền uốn tăng khoảng12 % (từ 21,12 MPa lên 23,70 MPa), so với mẫu đối chứng không sử dụng bột đá. Khi không sử dụng bột đá, trong lòng vật liệu tồn tại nhiều khoảng trống có thể quan sát được qua ảnh hiển vi điện tử quét (SEM), những khoảng trống này là nguyên nhân của độ hút nước cao cũng như khối lượng riêng kém hơn so với mẫu sử dụng bột đá với hàm lượng phù hợp.
Nghiên cứu sử dụng xỉ thép làm vật liệu san lấp, đắp nền trong xây dựng
Authors: Luân Tạ Văn , Song Lê Thị , Thiên Phạm Hữu
Published: February 2022

Bài báo trình bày kết quả nghiên cứu sử dụng xỉ thép từ các loại lò luyện thép (lò chuyển BOF, lò hồ quang điện EAF, lò điện cảm ứng IF) ở Việt Nam để làm vật liệu san lấp, đắp nền trong xây dựng. Các mẫu xỉ thép đã được xác định thành phần nguy hại, đặc tính phóng xạ, thành phần hóa, thành phần khoáng và tính chất cơ lý. Kết quả nghiên cứu cho thấy các mẫu xỉ thép không phải là chất thải nguy hại theo quy định trong QCVN 07:2009/BTNMT – Quy chuẩn kỹ thuật quốc gia về ngưỡng chất thải nguy hại. Bên cạnh đó, kết quả tính toán chỉ số hoạt độ phóng xạ an toàn của các mẫu xỉ được thử nghiệm đều đạt yêu cầu làm vật liệu san lấp theo TCXDVN 397:2007 - Hoạt độ phóng xạ tự nhiên của VLXD - Mức an toàn và phương pháp thử. Sau khi gia công xử lý thành phần hạt, tách từ và ổn định thể tích, xỉ thép có thể được sử dụng làm vật liệu san lấp, đắp nền với khối lượng lớn trong xây dựng mà không ảnh hưởng đến môi trường xung quanh khu vực sử dụng.
Complexity and Interaction across Oral, Written and Online Discourse
Authors: Tawfik Mayada
Published: February 2022

Most research that observed online discussions compared them to either written (e.g., Hewing& Coffin, 2007) or oral discourse (e.g., Joiner et al., 2008), never compiling the three modalities, and they did not provide comprehensive results regarding both form and Interaction. Academic essays and oral debates have been widely consumed in the EAP classroom. However, the effectiveness of synchronous online forums in the EFL academic classroom and their discourse features need to be compared to oral and written academic tasks simultaneously through a comprehensive analysis of both complexity, accuracy, and Interaction. The present study investigated the use of complex syntax, grammatical accuracy, and Interaction in the argumentative discourse of academic essays, oral debates, and synchronous online forums of EFL undergraduate students (N= 54) enrolled in a 12-week module of English for academic purposes. The methodology encompassed qualitative and quantitative methods of analysis. All data were qualitatively transcribed and coded. Then results were quantitatively calculated using ANOVA and post hoc t-tests to find the differences across tasks for each variable. Results revealed a higher impact of academic essays and synchronous online forums on syntactic complexity and grammatical accuracy than oral debates and a greater influence of online forums and oral debates than academic essays on interactional features. Synchronous online forums revealed the highest impact as a task combining both structure and Interaction. Pedagogical implications then highlighted how synchronous online forums could be used in the rhetoric and composition EFL classroom
Microcontroller Implementation for Automatic Smart Bell
Authors: Annas Muhammad Sabri , Haripuddin Haripuddin , Zain Satria Gunawan
Published: February 2022

This study aims to design automatic school bell hardware based on the ATmega32 microcontroller, design automatic school bell software based on the ATmega32 microcontroller using Basic programming language, and test the performance of the automatic school bell based on the ATmega32 microcontroller. This automatic school bell uses a minimum system of ATmega32 microcontrollers which equipped with data input from the push button, LCD to display character output, ISD2560 to output sound, and a timer taken from DS1307 RTC. This research is a Research or Development (R & D) research. This research is carried out through two stages of design. The first stage is the stage of hardware design. The second stage is the stage of software design. Programs are made using the Basic programming language using the Bascom-AVR application. The results of the product were tested using the black box method with two stages. In the first stage, software testing uses a series of simulations on the Proteus 7 Professional application. The second stage, testing hardware.
Environmental Governance Urban: Public Participation and Sustainable Development
Authors: Darhamsyah Darhamsyah
Published: February 2022

Environmental protection and management are carried out based on the principle of state responsibility, sustainability and sustainability, harmony and balance, integration, benefits, prudence, justice, ecoregion, biodiversity, participatory, local wisdom, good governance, and regional autonomy. The purpose of the research is to find out how much influence obtained between the variables of participation in sustainable development and indicators on these variables in environmental management in urban areas. The study was conducted in Makassar City in 2017-2018 with questionnaires and interviews as instruments to obtain primary data. The number of samples used was 200 respondents. With variables consisting of participation and sustainable development, then the indicator includes of (1) Thought Contribution; (2) Contributions of Funds; (3) Energy Contributions and (4) Contributions of Facilities for participation variables and (1) Culture - Ecology Interface; (2) Culture - Economy Interface; and (3) Economy - Ecology Interface for sustainable development. The analysis used is Confirmatory Factor Analysis (CFA) and to manage primary data with CFA, the help of IBM AMOS 23 Software used. The results of the study show that community participation in the development of business entities and waste banks is to encourage public involvement to the lowest level. To support environmental sustainability at the local level this, form of participation. From such things that make a significant influence between community participation in the development of environmental sustainability.
The Impact of Using the Internet for Learning for Students with Technology Acceptance Model (TAM)
Authors: O’Dell Dominique Garcia , Sulastri Tri
Published: February 2022

The development of the internet can provide convenience to humans in general, and students as one of the educational academics can provide changes in their life processes. The technique used in this study is Generalized Least Squares (GLS), which is proxied by using asymptotic covariance matrix data. The purpose of the study is to analyze the impact of the use of technology, in this case, is the internet in the learning process carried out by students. There are four constructs used in the TAM research, namely Perceived Ease of Use, Perceived Usefulness, Attitude Toward Using, and Actual Technology Usage. The research has three indicators for each latent variable. In this case, the latent variables are four. Then it can conclude that the number of samples used is 120. The sampling technique in this study uses Nonprobability sampling. The research hypothesis will test by analysis of SEM (Structural Equation Model) with the IBM AMOS (Analysis of Moment Structure) Program. The technique for using Generalized Least Squares (GLS), which is proxied by using the asymptotic covariance matrix data. From the results of the study, it found that this model has shown an overview of the aspects of the behavior of internet users that use for practical learning, where many users can efficiently operate the internet because it fits with what they need. Technology Acceptance Model (TAM) provides a reliable and straightforward explanation in accepting the technology and behavior of its users.
Implementasi Pengendalian Persediaan Meteran Sambungan Baru PDAM Tirta Mayang Dengan Metode EOQ
Authors: Subekti Agus Topo , Novrianti  , Mardiansyah
Published: February 2022

PDAM Tirta Mayang Kota Jambi merupakan perusahaan yang mengelola air di Kota Jambi. Pertumbuhan masyarakat yang diikuti dengan pertumbuhan bangunan, terkadang membuat pemasangan meteran baru tidak terpenuhi. Hal ini menunjukkan bahwasanya persediaan meteran di perusahaan perlu dianalisa. Persediaan meteran yang dibutuhkan akan dihitung agar kebutuhan penginstalan baru dapat terpenuhi, dan diperusahaan tidak terjadi penumpukan barang. Agar ketersediaan barang dan biaya efisien, data akan dianalisa menggunakan metode EOQ. Perhitungan menunjukkan bahwasanya perusahaan harus melakukan pemesanan meteran air sebanyak 14 kali pemesanan dalam setahun sejumlah 1752-unit setiap pemesanan. Proses ini akan menghemat uang perusahaan sebesar Rp.102.735.000, - pertahun.
Perancangan Kursi Yang Ergonomis Untuk Meminimalisir Kelelahan Pada Pekerja Laundry
Authors: Damzuri  , Dewi Diana Chandra , Rahayu Erna
Published: February 2022

Perkembangan bisnis laundry di Indonesia saat ini sedang mengalami pertumbuhan yang pesat, banyak ditemukan jasa laundry di beberapa kota besar dan juga daerah terpencil, berdasarkan data Asosiasi Profesi Laundry Indonesia (APLI) tahun 2013, Indonesia merupakan negara dengan pertumbuhan layanan laundry terbesar kedua setelah China. Kota Jambi merupakan salah satu kota yang saat ini terdapat usaha laundry, salah satu objek penelitian adalah Izoel Laundry merupakan salah satu usaha laundry yang ada di kawasan Villa Kenali RT 37 Mayang Mangurai- Kota Jambi. Pengukuran dilakukan pada beberapa dimensi tinggi duduk popliteal, tinggi bahu, lebar kepala, lebar pinggul, tinggi bahu ke kepala, lebar bahu, popliteal pantat. Berdasarkan hasil penelitian Tinggi jok 47,23 cm, tinggi dudukan 48,38 cm, tinggi sandaran kepala 23,82 cm, lebar dudukan 37,57 cm, lebar sandaran kursi 37,00 cm, lebar sandaran kepala 17,98 cm, panjang dudukan 46,27 cm.Kursi berbahan plastik karena tingkat ketahanan fisik masih lemah, setelah dilakukan pengukuran secara antropometri, peneliti mencoba merancang kursi yang diharapkan dapat mengatasi masalah bagi pekerja laundry, memiliki sistem yang dapat diatur, memiliki bantalan pada kursi dan belakang, memiliki sandaran yang fleksibel, kursi sudah disesuaikan dengan ukuran badan, sistem kunci manual di beberapa tempat.
Perancangan Operation Process Chart Dan Pengukuran Waktu Baku Dengan Metode Stopwatch Time
Authors: Permana Wahyu Dwi , Bayhaqi Imam , Handayani Corry
Published: February 2022

Ukuran kerja manusia merupakan faktor utama yang menentukan usaha peningkatan produktivitas industri. Pengukuran waktu juga ditujukan untuk mendapatkan waktu baku penyelesaian pekerjaan, yaitu waktu yang dibutuhkan secara wajar, normal dan terbaik. Perabot Ginok adalah sebuah UKM di Jambi yang bergerak dalam industri manufaktur yang diperkirakan memproduksi kursi 300 unit perbulan. Dikarenakan tidak adanya waktu baku dan urutan proses pembuatan kursi yang tidak berurutan ada beberapa pesanan produk yang menjadi waiting list. Penelitian ini bertujuan untuk mengetahui waktu baku memproduksi satu unit kursi, mengetahui target yang dapat dipenuhi dan merancang OPC. Dilakukan wawancara kepada karyawan untuk mendapatkan data elemen kerja dan waktu pembuatan kursi. Pengamatan setiap elemen kerja pembuatan satu unit kursi sebanyak 20 kali. Hasil dari waktu baku yang digunakan untuk membuat 1 unit kursi yaitu 60 menit dengan total waktu kelonggaran 6,24 menit sehingga target yang dapat dipenuhi oleh perabot ginok adalah dalam satu hari 8 kursi (240 kursi/bulan) dan hasil OPC terdapat 20 proses, 1 inspeksi, dan 1 penyimpanan, serta 4 bagian proses yaitu penompang, sandaran dan alas duduk, kaki depan kursi dan kaki belakang kursi dengan total waktu 3626 detik.
Dukungan Sosial Terhadap Pemanfaatan Posbindu pada Lansia di Mekarsari, Cimanggis Tahun 2019
Authors:   Fikes UPN Veteran Jakarta, Elbaking Mawaddah , Iswanto A. Heri , Ery Setyawati Marina , Hida Nurrizka Rahmah
Published: February 2022

Elderly’s posbindu is a community-based health that provides health services for the elderly. The increasing of elderly population in Indonesia indicates that posbindu should have a certain quality service. But in its utilization, some elderly did not use it well. This study aims to examine the differences in social support for the posbindu utilization between case and control group of the elderly in Mekarsari, Cimanggis. This study was used a case control design. The population in this study are elderly who visited posbindu in Mekarsari at least 1x during January-April 2019. The sample size was 34 people with a case:control rasio of 1:1. The sampling technique used is simple random sampling by giving random numbers to each individual who included the inclusion criteria. Data collection by interview method using questionnaire instrument. The result showed that there was no difference social support between case and control group. This is due to the Sig. of informational support (0,576), emotional support (0,080), appraisal support (0,641), and instrumental support (0,698) greater than alpha (0,05) so that Ho failed to be rejected. Some things that are suspected of influencing the lack of differences in social support include ease of accessing health information, there was motivation from health workers, lack of praises from family, and accessibility of elderly’s posbindu. There was no relation between social support with elderly’s posbindu utilization.
REAL TIME RT-PCR ASSAY TO DETECT SARS-COV-2 IN THAILAND
Authors: Tabprasit Sutchana , Saipin Krongkan , Siriwatthanakul Kamonwan , Kramyoo Min , Yokanit Watcharee , Rodkvamtook Wuttikon , Kana Kunakorn , Imwattana Pramote , Chotanaphuti Thanainit
Published: February 2022

The Armed Forces Research Institute of Medical Sciences (AFRIMS) conducts medical research and disease surveillance to develop and evaluate medical products, vaccines and diagnostics to protect Royal Thai Army personnel from infectious diseases. Currently regarding globalized travel, infectious diseases pose a constantly evolving threat, indiscriminately transcending national, regional and even intercontinental boundaries. Since the COVID-19 outbreak, AFRIMS has gained knowledge from diagnostic tests for SARS-CoV-2 using the Centers for Disease Control and Prevention (CDC) as a reference protocol. We set up and developed the molecular diagnosis detection for SARS-CoV-2, Real-time Reverse Transcription Polymerase Chain Reaction (RT-PCR), to analyze the nucleocapsid (N) genome of SARS-CoV-2 which is a standardized method in the laboratory. AFRIMS is certified by the Department of Medical Science, Ministry of Public Health (MOPH) as a COVID-19 laboratory network. We provided COVID-19 screening services to government units and private hospitals in late February 2020. It could be stated that AFRIMS is the first military unit to be certified by the MOPH. Since the COVID-19 pandemic started in Bangkok, 3,172 samples have been tested and 96 samples have been confirmed. Detecting viral RNA not only aids in the diagnosis of illness but also provides epidemiological and surveillance information.
DOES THE PLATELET CONCENTRATION IN PLATELET RICH PLASMA INFLUENCE THE OUTCOMES OF PRIMARY KNEE OSTEOARTHRITIS?
Authors: Brang Mai  , Mg Htwe Maung , Win Than , Min Han Zaw , Myo Aung
Published: February 2022

Background: Growth factors in platelets have been extensively studied and were reported to be used to stimulate cartilage regeneration in osteoarthritis (OA). Objective: This study aimed to observe the influence of platelet concentration in platelet rich plasma (PRP) on the outcomes of primary knee OA. Methods: Eighty-nine patients undergoing PRP injection in unilateral primary knee OA were assessed using the Western Ontario and McMaster Universities Arthritis Index (WOMAC) questionnaire and visual analog scale (VAS) before intervention at 3 weeks, 3 months, 6 months and 12 months after treatment. A small aliquot of PRP was sent for bacteriologic examination and evaluation of the platelet count. A student t-test was conducted to compare WOMAC and VAS score among patients before PRP injection (baseline) and at each follow-up. The platelet count and their influence on outcomes were also analyzed using Pearson`s correlation coefficient. Results: Statistically significant differences were observed in the WOMAC score between baseline (M=47.08, SD=8.50) and 3 weeks (M=20.37, SD= 10.09, p< 0.001), 3 months (M= 23.24, SD= 11.39, p<0.001), 6 months (M= 29.89, SD=14.95, p <0.001), and final follow-up at 12 months (M= 27.78, SD= 16.56, p<0.001). Also a significant difference was observed in VAS between baseline (M=69.02, SD= 9.58) and 3 weeks (M= 36.23, SD= 15.72, p <0.001), 3 months (M= 37.04, SD= 17.30, p <0.001), 6 months (M= 42.58, SD=22.15, p <0.001) and 12 months (M=39.15, SD= 23.96, p <0.001). The mean platelet count in PRP injection was 1000.66x103platelets/mL (402x103platelets/ml to 1630x103platelets/mL). Positive correlations were discovered between the concentration of the platelet and the mean improvement WOMAC scores and VAS at 3 weeks (r =0.31, r=0.40), 3 months (r=0.10, r=0.23), 6 months (r=0.08, r=0.30) and 12 months after intervention (r=0.12, r=0.23), respectively. Conclusion: Higher concentrations of platelets in the PRP had a better effect on outcomes of primary knee OA especially at three weeks after injection.
CORRELATION OF HEMOGLOBIN A1c AND DIABETES RISK USING THE THAI DIABETES RISK SCORE
Authors: Parksook Wyn , Chaisuwirat Preamrudee , Boonyavarakul Apussanee
Published: February 2022

Background: Early detection of diabetes allows prompt access to interventions that can improve microvascular and macrovascular disease outcomes. Multiple strategies have been employed, i.e., the use of diabetes risk scores including blood testing.

Objective: The study aimed to evaluate the correlation between point-of-care hemoglobin A1c (POC HbA1c) and Thai diabetes risk score.

Methods: A cross-sectional study was conducted consisting of 252 individuals without diabetes over the age of 35. Demographic data and anthropometric measures were recorded and the blood test for POC HbA1c including plasma glucose were performed.

Results: Of 252 participants, the mean HbA1c was 5.56 ± 0.73%, the median Thai diabetes risk score was 7 [5-10] and American Diabetes Association (ADA) risk score was 3 [2.3-4]. Males had higher risk scores than females. Weak positive correlations were observed between POC HbA1c and both Thai and ADA risk score (r = 0.226 and 0.279, respectively, p<0.001). The predictors of higher HbA1c among males were high BMI and waist circumference.

Conclusion: A weak correlation of POC HbA1c and Thai diabetes risk score suggested that POC HbA1c may not be beneficial in screening diabetes in out-of-clinic situations; however, male participants with WC >100 cm and BMI >27.5 kg/m2 were associated with highest HbA1c.
BIOCHEMICAL FINITE ELEMENT ANALYSIS OF THE LOCKED KIRSCHNER WIRE SYSTEM VERSUS VOLAR PLATE FIXATION OF DISTAL RADIUS FRACTURE
Authors: Jaroenporn Woraphon , Rerksanan Wassapol , Phiphobmongkol Vajarin , Vechasilp Jaruwat , Phukang Samran , Siritattamrong Wichit , Ariyaprakai Natcha
Published: February 2022

Background: Volar locking plate (VP) and Kirschner wire (K-wire) fixations of distal end radius fractures are the most frequently used techniques that produce similar long term clinical results. However, inadequate fixation strength of the K-wire may cause pin loosening or migration. Although these complications can be prevented by immobilization, joint stiffness and a prolonged recovery period can occur.

Objective: Herein, a technique that provided more stability, allowing immediate motion after fixation by linking the K-wires into a single system (locked K-wire system) was proposed.

Methods: We evaluated biomechanical responses of the locked K-wire system and a VP in extraarticular distal radius fracture models AO/OTAa type 23A2 and 23A3 using three-dimensional finite element analysis. All models were tested under axial, bending, and torsional loads.

Results: From the simulation results, the total displacement was greater in the dorsal wedge fracture than that from the simple fracture under all loads for both fixation systems. The locked K-wire system and the VP could withstand immediate physiologic load with maximum displacements of 1.15 mm and 1.39 mm, respectively.

Conclusion: Considering the immediate physiologic load resistance and the ability to preserve its position during the bone-healing period, the locked K-wire system might be used as an alternative to fix distal radius fractures.
Organic Inputs on Maize (Zea mays) Yield and Chemical Properties of Two Ultisols
Authors: Chabu Kamfwa , Shitumbanuma Victor , Chishala Benson , Kalala Daniel
Published: February 2022

Effects of organic inputs (OIs) on maize grain yield and chemical properties of Ultisols were assessed at Msekera and Misamfu Agricultural Research Stations in the medium and high rainfall regions respectively of Zambia. The OIs included biomasses of the leguminous species Cajanus cajan, Tephrosia vogelii, and Crotalaria juncea, in-situ composted native grasses and shrubs called fundikila, modified fundikila using Mucuna pruriens, and composted cattle manure, with chemical fertilizer as a control. After two crop growing seasons, cattle manure significantly increased soil pH, while modified fundikila significantly increased levels of soil organic matter. At Msekera, OIs increased levels of total N by 300%. At Misamfu, fundikila and Cajanas cajan increased total N by 35%. The OIs did not significantly increase available P and K at both sites. In the first season at Msekera, OIs had a higher mean maize yield (6075±368 kg/ha) than chemical fertilizer (3567±715 kg/ha). Maize yields for OIs in the second season did not differ significantly from those of the first season. At Misamfu the leguminous OIs Cajanas cajan and Tephrosia vogelii, had a lower combined mean maize yield (5405±242 kg/ha) than chemical fertilizer (7426±430 kg/ha) in the first season. A 70% decline in maize yield occurred on plots with leguminous OIs in the second season compared to the first season. Leguminous OIs generally performed better at Msekera than at Misamfu. At both sites, the traditional OIs, cow manure at Msekera, and fundikila at Misamfu had higher maize yields than leguminous OIs. We concluded that effects of OIs on soil chemical properties and maize yield vary with soil and climatic conditions and that these need to be considered when selecting OIs for use by farmers.
Spray Deposition on Watermelon Crop in Aerial and Ground Application
Authors: Vitória Edney Leandro da , Alves Diogo de Souza , Rossi Matheus Torezani , Favero Raphael Gomes , Fernandes Adriano Alves , Silva Marcelo Barreto da , Freitas Ismael Lourenço de Jesus , Locatelli Tamara , Freitas Sílvio de Jesus , Freitas Silvério de Paiva , Junior Silvério de Paiva Freitas , Lima Alex Silva , Nascimento Alan de Lima , Lacerda Élcio das Graça
Published: February 2022

The quality and quantity production of watermelon requires the effective control of pests, diseases, and weeds, which is directly related to spraying techniques. The method of application of phytosanitary products is essential, but, most of the time, emphasis is given mainly to the applied product and little attention to the application technique. The objective of the present study was to characterize the ejected spray in the aerial and terrestrial spraying of watermelon crops, with the use of adjuvants in a liquid solution. The experiment was carried out in two commercial plantations, in an entirely randomized design, employing a 6 × 2 factorial scheme, with six forms of application and two liquid compositions. The droplet spectrum was assessed employing water-sensitive card imaging. Smaller drop sizes and relative amplitudes were produced by aerial applications. In turn, the largest droplet diameters and the lowest percentage of drops smaller than 100 μm were obtained when using air induction flat double-jet nozzles. The adjuvant did not interfere in the numerical and volumetric median diameters, the relative amplitude, or the volume rate of droplets smaller than 100 μm.
REVISÃO SISTEMÁTICA DE LITERATURA SOBRE A RELAÇÃO ENTRE INOVAÇÃO E DESEMPENHO FINANCEIRO DAS STARTUPS
Authors: Silva Luciana Santos Costa Vieira da , Kaczam Fabíola , Silva Deoclécio Júnior Cardoso da , Silva Bruno Nogueira , Lucena Wenner Gláucio Lopes
Published: February 2022

O objetivo deste artigo é desenvolver uma Revisão Sistemática de Literatura (RSL) sobre a relação entre inovação e desempenho financeiro em startups. Foram selecionados 49 artigos nas bases de dados Scopus e Web of Science. As análises foram apoiadas nas três leis da bibliometria clássica. O período de 2011 a 2020 foi definido para a elaboração deste estudo. Há necessidade de as startups adotarem uma cultura organizacional que adote práticas inovadoras e norteie o ambiente interno na adoção de comportamentos inovadores, bem como estreite as relações entre as universidades, incubadoras e fontes de financiamento com formação de alianças fortes para a promoção da inovação além de um amadurecimento maior nas redes de cooperação entre as empresas. A contribuição consiste em oferecer evidências sobre os resultados dos estudos, que podem sustentar a tomada de decisão de gestores de startups e gestores públicos, na criação de estratégias e políticas orientada a competitividade.
Hope = Hell (Dystopia)
Authors: N. N.
Published: February 2022

A collapsed code of Egyptian and Tunisian lifeworlds in 2016.
Security = Fear (Police State)
Authors: N. N.
Published: February 2022

A collapsed code of Egyptian and Tunisian lifeworlds in 2016.
Die assistierte Reproduktion mittels humaner artifizieller Gameten
Authors: Girschick Sebastian
Published: February 2022

In the mouse model, scientists have already sporadically succeeded in generating healthy offspring by means of the union of artificial germ cells, i.e. germ cells derived from induced pluripotent stem cells. In the not too distant future, such artificial germ cells could also be used by humans for reproduction. This would allow the creation of "unnatural," i.e., inherently impossible, genetic parent-child relationships. This book first elaborates the essential foundations of the law of parentage under international and constitutional law. It then presents the current framework of the law of descent, especially with regard to possible reproduction by means of artificial germ cells. Finally, after an excursion into anthropological concepts of kinship, the book proposes regulations for both domestic and international descent law, as regulated by the Introductory Act to the German Civil Code (EGBGB), which also (and especially) provide solutions for the various conceivable cases of reproduction by means of artificial gametes.
Výuka v přírodě: módní hit či smysluplná výuka?
Authors: Ševčíková Jaroslava
Published: February 2022

Studie se zabývá společensky frekventovaným tématem, paralelním k pro­bíhající odborné diskusi, a to výukou přírodopisu na druhém stupni základní školy v terénu, v přírodě. Cílem v této studii bylo zjistit vztah učitelů a žáků k této výuce. Jde o reakci na problém vzniklý direktivním nařízením vedení (některých) škol vyučovat přírodopis mimo třídu, venku, což není vždy v souladu s učitelovým pojetím výuky. Do kvalitativního výzkumu se zapojilo dvacet devět učitelů přírodopisu z dvaceti sed­mi základních škol a třicet osm žáků ze dvou tříd různých škol. Sběr dat byl reali­zován metodou autonomního psaní, kdy jedinec popisuje i hodnotí svou zkušenost bez zásahu badatele, a doplňkově prostřednictvím rozhovorů na dané téma. Výzkum probíhal v přirozeném prostředí, v praxi škol. Data jsou výsledkem subjektivní refle­xe jednotlivců a byla podrobena interpretativní fenomenologické analýze, texty byly děleny na smysluplné významové jednotky a ty pak seskupovány, a v nich byly vyhle­dávány opakující se vzorce. Následná interpretace byla realizována v rámci spoluprá­ce respondentů a badatele přístupem collaborative accounts. Z výzkumu vyplynulo, že výuka přírodopisu v přírodě dává zúčastněným vyučujícím i žákům smysl pouze v případě, že se s ní ztotožní a jsou na ni připraveni, že je zvládnuta nejen odborně obsahově, ale také organizačně.
Assessment decision making in vocational education and training
Authors: Fjørtoft Henning , Morud Elin Bø
Published: February 2022

Assessment decision making is a highly contextual phenomenon. In this paper, we explore this topic in vocational education and training (VET). Thirty-eight teachers from five Norwegian upper secondary schools were interviewed before and after an 18-month research–practice partnership. To understand assessment decision making in VET, we draw on two bodies of knowledge: (a) research on teachers' decision making in assessment and (b) conceptualizations of teachers' professional capital. Four main findings emerged from the analysis: three assessment-related dilemmas and one professional capital-related dilemma. We then discuss how these aspects of practice affect assessment decision making and the implications for developing VET teachers' decisional capital.
Del egoísmo a la hospitalidad: Lévinas o la intempestividad de un pensador judío
Authors: Sánchez Meca Diego
Published: February 2022

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La escritura y la voz en la narración literaria
Authors: Filinich María Isabel
Published: February 2022

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Discurso e historia en la novela española de posguerra
Authors: Ramos Ortega Manuel José
Published: February 2022

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Literatura y televisión
Authors: Remesal Agustín
Published: February 2022

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Investigación, valor y crítica
Authors: González de Ávila Manuel
Published: February 2022

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La lengua literaria de Pedro Salinas
Authors: Peces María Luisa
Published: February 2022

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El anagrama saussuriano. Los textos y la crítica
Authors: Rodríguez Ferrándiz Raúl
Published: February 2022

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José Romera Castillo: Con Antonio Gala. (Madrid: Universidad Nacional de Educación a Distancia, 1996, 335 págs.)
Authors: Padilla Mangas Ana
Published: February 2022

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J. Romera Castillo, F. Gutiérrez Carbajo y M. García-Page (eds.): La novela histórica a finales del siglo XX (Actas del V Seminario Internacional del Instituto de Semiótica Literaria y Teatral de la UNED). (Madrid: Visor Libros, 1996, 439 págs.)
Authors: Cortés Ibáñez Emilia
Published: February 2022

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Effect of interaction between occupational stress and polymorphisms of MTHFR gene and SELE gene on hypertension
Authors: Yang Fen , Qiu Ruiying , Abudoubari Saimaitikari , Tao Ning , An Hengqing
Published: February 2022

Background

Gene-environment interaction is related to the prevalence of hypertension, but the impact of genetic polymorphisms on hypertension may vary due to different geography and population.

Objective

To explore the impact of the interaction among occupational stress and MTHFR gene and SELE gene polymorphism on the prevalence of hypertension in Xinjiang oil workers.

Methods

A case-control study was conducted on 310 oil workers. In an oilfield base in Karamay City, Xinjiang, 155 hypertensive patients aged 18~60 years old with more than one year of service were selected as the case group, and 155 oil workers without hypertension were selected as the control group according to the 1:1 matching principle (matching conditions: the gender and shift were the same. The age is around 2 years old). The Occupational Stress Scale was used to evaluate the degree of occupational stress, PCR technique was used to detect MTHFR and SELE gene polymorphism, Logistic regression analysis was used to analyze the effects of gene and occupational stress on hypertension, and gene-gene and gene-environment interactions were analyzed by generalized multi-factor dimension reduction method.

Results

The G98T polymorphism of SELE gene (χ2 = 6.776, P = 0.034), the C677T (χ2 = 7.130, P = 0.028) and A1298C (χ2 = 12.036, P = 0.002) loci of MTHFR gene and the degree of occupational stress (χ2 = 11.921, P = 0.003) were significantly different between the case group and the control group. The genotypes GT at the G98T polymorphism of the SELE gene (OR = 2.151, 95% CI [1.227–3.375]), and the dominant model (AC/CC vs AA, OR = 1.925, 95% CI [1.613–3.816]); AC and CC at the A1298C polymorphism of the MTHFR gene (ORAC = 1.917, 95% CI [1.064–3.453]; ORCC = 2.233, 95% CI [1.082–4.609]), the additive model (CC vs AA, OR = 2.497, 95% CI [1.277–4.883]) and the dominant model (AC/CC vs AA, OR = 2.012, 95% CI [1.200–3.373]); at the C677T polymorphism of the MTHFR gene CT and TT (ORCT = 1.913, 95% CI [1.085–3.375]; ORTT = 3.117, 95% CI [1.430–6.795]), the additive model (CC vs AA, OR = 1.913, 95% CI [1.085–3.375]) and the dominant model (AC/CC vs AA, OR = 2.012, 95% CI [1.200–3.373]), which could increase hypertension risk (P < 0.05). The gene-gene interaction showed that there was a positive interaction between the A1298C and C677T sites of the MTHFR gene, and the gene-occupational stress interaction showed that there was a positive interaction between the A1298C and C677T sites of the MTHFR gene and the occupational stress.

Conclusion

The interaction of gene mutation and occupational stress in Xinjiang oil workers maybe increase the risk of hypertension.
A Rare Differential Diagnosis for Acute Abdominal Pain- Torsion Lipoma of Greater Omentum
Authors: Amburu Munikumar , Rezak Mohammed Zakariya Abdul , Achari Loganathan Mannu , Ramalingam Natarajan , Ramaiah Karunanithi
Published: February 2022

Lipoma is a benign neoplasm arising from yellow fat. Often it can be hyperplasia or combination of neoplasm and hyperplasia. It is composed of mature adipocytes and uniform nuclei that are identical to those seen in normal adult fat. It is called as universal tumour/ubiquitous tumour as it can occur anywhere in the body outside of brain. It can be localised (encapsulated) or diffuse (non- encapsulated). It can occur in sites like subcutaneous, subfascial, intramuscular, intermuscular in anterior abdominal wall, paraosteal, submucosal, subserosal sites. Here, a case of torsion of the lipoma in the greater omentum is reported presenting as acute abdomen. This eight-year-old girl presented with symptoms of right iliac fossa pain, signs of localised peritonitis and right psoas irritation. Appendicular mass/abscess was considered on clinical examination. The radiological evaluation ruled out appendicular pathology and an ovarian pathology possibly a torted ovary was suspected. During surgical exploration, a tumour of greater omentum was identified and resected. This rarity of the differential diagnosis for a right Iliac fossa mass is highlighted herewith.
Histomorphological Alterations of Placenta in Normal vs Gestational Diabetes Mellitus Subjects: A Case-control Study
Authors: Anjum Shabina
Published: February 2022

Introduction: Gestational Diabetes Mellitus (GDM) during pregnancy leads to gross and microscopic changes in the placenta. These abnormal changes in the placentas are responsible for the foetal hypoxia and increases perinatal morbidity and mortality. The study of placenta helps significantly in understanding the process of foetal development in response to various maternal conditions like GDM. Aim: To observe the gross and microscopic changes of placenta complicated by GDM and comparing the features with normal placenta. Materials and Methods: In this prospective case control study, performed from January 2012 to December 2015, 80 full term freshly delivered placentas were collected from the labour room with prior informed consent. Forty were from uncomplicated pregnancy (control group) and 40 were from pregnancies complicated by GDM (experimental group). Detailed gross and microscopic examinations were done on placentas from both the groups and the results were documented and associated statistically by using the Statistical Package for Social Sciences (SPSS) version 22.0. Results: On gross examination, of 80 placentas (40 from the control group and 40 from the experimental group), those from the experimental group showed significantly higher placental weight, diameter, volume, thickness, and lower foeto-placental ratio than the control group. The p-value for all these parameters was observed to be <0.0005. Similarly, on microscopic examination villous immaturity (p-value <0.0005), oedema (p-value <0.0005), fibrinoid degeneration (p-value<0.0005), chorangiosis (p-value 0.001) and nucleated foetal RBCs inside the capillaries (p-value <0.0005) were noted to be significantly higher in the experimental group. Conclusion: This study shows significant gross and microscopic changes in the GDM placentas, the most significant histological changes noted were the villous immaturity, thickened Basement Membrane (BM) and fibrinoid degeneration which may be attributed to impaired placental functioning and unfavourable perinatal outcomes.
Spleen Size in Chhattisgarhi Adult Population with Relation to Age using Ultrasonography: A Cross-sectional Study
Authors: Chakraborty Kushal , Chatterjee Manik , Netam SBS
Published: February 2022

Introduction: Spleen, a vital organ of reticuloendothelial system, which helps in degradation of old red blood cells and secretes properdin, tuftsin and immunoglobulin-G. Spleen known to show variation in shape and size with respect to age, sex, height, weight and ethnicity. Ultrasonography is a non magnetic radiation, easily performed and cost-effective diagnostic procedure which can be used for accurate measurement of spleen. Aim: To evaluate and correlate splenic dimensions by Ultrasonography (USG) in Chhattisgarh population with respect to age. Materials and Methods: This cross-sectional study was conducted over a period of one year, from August 2015 to July 2016 in the Departments of Anatomy and Radiodiagnosis at Pt. Jawahar Lal Nehru Memorial (Pt. JNM) Medical College, Raipur, India. A total of 400 subjects were recruited for study, of which 239 were females and 161 were males. The subjects were selected amongst the adult patients, in the age groups of 25-60 years, who had come for abdominal USG. Spleen length, breadth and thickness of these were evaluated using USG. Descriptive analysis was carried out using Microsoft (MS) Excel version 2010 and Statistical Package for the Social Sciences (SPSS) version 23.0 was used to derive mean, standard and Pearson’s correlation coefficient (r). Statistical significance was considered at p-value <0.05. Results: A total of 400 subjects were studied with a mean age of 39.23±10.03 years. Spleen length, breadth and thickness in age groups 25-30 years were 95.34±8.73 mm, 49.42±9.19 mm and 34.93±4.62 mm, in age group 31-40 years was 92.25±7.13 mm, 45.95±7.86 mm and 33.9±3.88 mm, in age group 41-50 years was 90.7±7.69 mm, 45.01±7.31 mm and 33.5±3.99 mm and in 51- 60 years was 88.39±5.25 mm, 41.39±6.64 mm and 27.67±2.8 mm was noted in females. Whereas in males, in age group 25-30 years was 105.43±10.42 mm, 53.87±8.01 mm and 41.56±6.16 mm, in age group 31-40 years was 101.8±7.66 mm, 48.73±6.1 mm and 37.65±4.27 mm, in age group 41-50 years was 98.48±7.03 mm, 45.81±6.14 mm and 36.16±3.98 mm and in age group 51- 60 years was 94.38±7.09 mm, 42±5.94 mm and 34.3±4.46 mm, respectively was observed. Conclusion: Spleen length, breadth and thickness were observed to decrease in size with increase in age, of which spleen breadth in males showed a moderately significant negative correlation (r=-0.451) with age.
Problems Faced by the Cashew Exporters in Kerala
Authors: Paul Haritha , K. N. Ushadevi
Published: February 2022

Aims: India is the world's largest cashew producer, processor, and consumer. For years, India had an unrivalled and unchallenged monopoly on cashew production, processing, and marketing around the world. Considering the promising future of the cashew export market, the study aimed to analyse the problems faced by the cashew exporters in Kerala.

Place and Duration of the Study: 65 cashew exporters (who have been continuously exporting the cashew for the last five years) in Kollam district of Kerala were selected randomly and the primary survey was conducted through a pre –tested structured questionnaire.

Methods: To find out the most significant factor which influences the respondent, Garrett’s ranking technique is used. Garrett’s Ranking Technique provides the change of orders of problems into numerical scores. The advantage of this technique is that the problems are arranged based on their severity from the point of view of respondents.

Results: The study highlighted that the major problems faced by the cashew exporters are high processing cost, unattainable of Standard Input-output Norms (SION), threats of foreign entrants to the domestic market, reduction in international share, the orientation of processing to big sectors, and the exploring of new markets.

Conclusion: Thereby the protective policies like, increase exportable grades has to be fixed at ratio of 1:6, withdrawing the basic customs duty imposed on the imported cashew and increase the export incentives adopted by the government, which will helps to reduce the problems in the cashew industry. In addition to that contribute in a better way to the growth of the country by providing gainful employment opportunities via attaining women empowerment fetching foreign exchange to the nation and protecting it as a dominant position in the international market that it used to enjoy till a decade back.
Numerical Investigation of the Use of Some Piston Crown Geometry on CI Engine Performance
Authors: A. Towoju Olumide , A. Adeyi Timothy
Published: February 2022

Performance enhancement of internal combustion engines is basically achieved through process type, fuel use, injection mode and, combustion chamber geometry modification. Extensive studies are being undertaken to optimize the performance of compression ignition engines by combustion chamber geometry modification, however, this is largely executed with experiments. Numerical results on the effect of piston crown geometry as a means of combustion chamber modification on the performance characteristics of a compression ignition engine are presented in this short paper. The impact of in-cylinder fluid flow velocity was used to evaluate the performance of the engine. The in-cylinder motion of the fluid was positively impacted using the conical, hemispherical and dual hemisphere indented piston crowns, which is in agreement with previous experimental studies.