bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengelolaan Lahan Gambut di Perkebunan Kelapa Sawit di Riau
Authors: Saragih Jastri Mey , Hariyadi .
Published: May 2020

Pengelolaan tata air dan pemadatan tanah merupakan syarat awal pengelolaan lahan gambut di perkebunan kelapa sawit. Kegiatan dilaksanakan di Riau dengan tujuan umum mengetahui dan mengikuti praktek perusahaan dalam mengelola lahan gambut untuk tanaman kelapa sawit, serta dengan tujuan khusus mempelajari sistem pengelolaan tata air perkebunan. Kegiatan dilaksanakan selama 4 bulan mulai Februari – Juni 2013. Pada umumnya sasaran ketinggian air di Perkebunan adalah 25 – 50 cm di bawah permukaan tanah. Sistem drainase terdiri atas kanal utama, kanal cabang, kanal cabang baru, kanal kolektor, parit kolektor, parit tengah, dan field drain. Upaya-upaya untuk mempertahankan ketinggian air antara lain membuat water zoning, memasang piezzometer, pintu air, over flow gate, pintu air parit tengah, pembuatan emergency gate, pemasangan spillway, perawatan kanal, dan pembuatan peta dan SOP sistem pengelolaan tata air. Analisis regresi linier sederhana dilakukan untuk menduga pengaruh curah hujan terhadap ketinggian air. Kajian menunjukkan bahwa curah hujan berpengaruh nyata (P value = 0.014) terhadap ketinggian air. Kenaikan 1 % curah hujan akan menaikkan ketinggian air 0.06893% di bawah permukaan tanah. Analisis regresi linier berganda dilakukan untuk menduga pengaruh curah hujan dan ketinggian air terhadap produksi. Kajian menunjukkan curah hujan dan ketinggian air tidak berpengaruh nyata terhadap produksi.
Budi Daya Lisianthus (Eustoma grandiflorum (Raf.) Shinn.) di Mayungan, Bali
Authors: Demas Antony , Sukma Dewi , Kartika Juang Gema
Published: May 2020

Tujuan dari penelitian ini adalah untuk meningkatkan pengetahuan dan keterampilan dasar yang berkaitan dengan pengalaman praktik kerja lapangan pada budi daya lisianthus (Eustoma grandiflorum (Raf) Shinn.). Penelitian dilaksanakan di Mayungan, Bali dari Februari - Juni 2009. Selama penelitian berlangsung, pekerjaan yang dilakukan sebagai buruh, pengawas asisten, dan asisten manajer. Beberapa data diperoleh melalui wawancara dan diskusi dengan pekerja dan manajer, selain itu juga pengamatan langsung di lapangan. Informasi yang diperoleh berkaitan dengan profil perusahaan, kondisi tanah, konstruksi penanaman, dan kendala pekerjaan. Fakta budi daya lisianthus, seperti pengembangan tanaman di pembibitan dan rumah kaca, karakteristik tanaman, metode irigasi, pupuk, persentase tanaman produktif, sebaran panen, dan vase life telah diamati. Lisianthus memiliki karakteristik yang unik sebagai tanaman bunga potong, selain itu bervariasi antar varietasnya. Metode budidayanya tidak hanya merawat tanaman muda pada plug produksi tetapi juga menumbuhkan lisianthus dalam rumah kaca produksi, hingga penanganan pascapanen. Terdapat kekurangan dalam produktivitas tanaman yang terlihat sangat rendah. Secara khusus pada produksi dan sistem pemasaran dalam rangka untuk bersaing dengan petani bunga potong berpengalaman dan terlatih.
Quality management of electricity service with photovoltaic generation distributed in rural area
Authors: Mieles Gino Joaquín , Quiroz Alcira Magdalena Vélez , Borges Ciaddy Gina Rodríguez , Pérez Antonio Vázquez
Published: May 2020

The need to search for new energy models that are integrally sustainable for the present and the future, especially photovoltaic solar energy that would contribute to a radical change in Manabí Ecuador where populations are living in rural areas away from the electricity grid, which causes impacts negative economic and in some rural electrification projects, and low quality have oriented national policies towards the search for the best alternatives, such as renewable sources, that is, the efficient use of resources and the increase in reliability, coverage, and quality in the electrical supply that Manabí has. Emphasizing "good living" as an objective of the Ecuadorian government, meeting its needs for the development of its agricultural, artisanal, commercial and industrial activities. Thus, avoiding that due to lack or poor quality of energy that prevents them from being able to carry out an activity typical of the countryside or rural areas, these people migrate to the cantonal headwaters, further thickening the cords of misery. The work presents an analysis on the quality of the electric service in isolated areas of the Chone municipality, proposing solutions that can improve the quality of the service, through sustainable energy planning using indigenous resources from the territory.
Reducing maternal mortality in Nigeria: addressing maternal health services’ perception and experience
Authors: Ope Beatrice Wuraola
Published: May 2020

Despite efforts targeted at addressing maternal deaths across national and sub-national levels, maternal mortality ratio has remained high in Nigeria in the last two decades, with the country currently accounting for about 20% of global maternal deaths. While improving overall quality of healthcare is crucial to addressing the high maternal deaths, some country-specific issues need to be explored. This paper highlights the need to understand and address the perception and experiences of maternal services particularly at point of delivery, as this is imperative towards increasing the utilization of maternal health facilities in a multicultural setting like Nigeria. The focus should not only be on why women do not accept healthcare services, but why health facilities do not provide the services that women will accept. This approach to assessing quality of healthcare is necessary to inform relevant policy and public health response in the country.
Accuracy of Lateral Invertogram in diagnosing and classifying anorectal malformations
Authors: Nwokoro CC , Ayoade BA , Salami BA , Fatungase OM , Olatunji AA , Emmanuel EA
Published: May 2020

Background: The initial management of a new born baby with anorectal malformation could be made only after an accurate determination of the level of the anomaly.

Objective: To determine the accuracy of lateral invertogram in diagnosing and classifying anorectal anomalies.

Methods: This was a retrospective study carried out between January 2003 and December 2013. The accuracy, sensitivity, and specificity of lateral invertogram in diagnosing and classifying anorectal malformations in the cases studied were determined.

Results: A total of 62 children with anorectal malformations patients were seen during the study period. The age range was 4 hours to 6 years. A total of 50 (80.6%) had lateral invertogram while only 39 films of lateral invertogram were available for analysis. A total of 22 patients had high anomalies while 12 patients had low anomalies. The accuracy of lateral invertogram in identifying anorectal anomaly was 100% and its ability to differentiate between high and low anomalies was 76.5%. The Sensitivity in identifying high anomalies was 59% while the specificity was 31.8%. The sensitivity in identifying low lying lesions was 66.5% while the specificity was 50%.

Conclusion: The accuracy, sensitivity, and specificity of lateral invertogramin diagnosing and classifying anorectal malformations were found to be satisfactory in the present study.
An echocardiographic study of Rheumatic Heart Disease amongst children in a Tertiary Centre
Authors: Sadoh WE , Eguejiofor CA , Amake JA
Published: May 2020

Background: Rheumatic Heart Disease (RHD) is a major form of acquired heart disease amongst children in
developing countries, where it continues to be a cause of childhood morbidity and mortality.
Objective: To describe the prevalence and spectrum of valvular affectation in children with RHD from the
echocardiography laboratory.
Methods: The records of echocardiographic scans conducted over a 10-year period in a tertiary health facility
were reviewed. Children with RHD, diagnosed using standard criteria were identified. The pattern and severity
of valvular involvement and other associated cardiac abnormalities were recorded.
Results: Forty-one of the 2742 (1.5%) children who had echocardiography had RHD. Their mean age was
10.9±3.1 years; 28 (68.3%) were aged ≥10 years while 21 (51.2%) were males. Mitral valve was the predominantly
affected valve in 40 (97.6%) children and mitral regurgitation was the commonest valvular abnormality in 19
(46.3%) cases. Nineteen (46.3%) had severe valvular damage, 5 (12.2%) had pericardial effusion while 7 (17.1%)
died. Only 2 (4.9%) children had valvular repair surgery.
Conclusion: Although the prevalence of RHD in this study is low, it is noteworthy that RHD still affects Nigerian
children. The poor access to surgery emphasizes the need to strengthen both primary and secondary prevention
of RHD while enhancing facilities for surgical intervention.
Age and gender demographics in social media use, Smartphone addiction and psychological morbidity among university undergraduates in Southwest Nigeria
Authors: Afe TO , Ogunsemi OO , Osalusi BS , Adeleye OO , Ale AO
Published: May 2020

Background: Smartphone addiction has become a public health issue. The use of social media has led to unintended consequences, especially among young adults and college students. Unfortunately, the pattern of use, the prevalence of addiction and the relationship with actual psychological morbidity are not clear.

Objective: To evaluate the prevalence of Smartphone addiction and the relationship to the frequency of social media use and psychological morbidity among Nigerian university students.

Method: One hundred and fifty-nine students were recruited through social media invites and direct invitation from Lecture Halls. The socio-demographic forms, the Smartphone Addiction Scale (Short Version) and Self-reporting Questionnaire-20 were administered.

Results: WhatsApp was the most frequently accessed social media phone application (62.9%).Participants who used Instagram had the highest mean score on SAS-SV (31.4±9.4) and SRQ-20 (8.1±5.3). The prevalence of Smartphone addiction was 34.6% (55/159) while 48.4% (77/159) met the criteria for psychological morbidity. A higher proportion of males met the criteria for Smartphone addiction (29; 50.8%). Males had higher mean SAS scores (31.7±9.4) compared to the females (28.1±8.5) (p = 0.01). Smartphone addiction was more frequently associated with psychological morbidity among males (p = 0.01). No significant difference in Smartphone addiction and psychological morbidity was found across ages.

Conclusion: Smartphone addiction is prevalent and associated with psychological morbidity among male undergraduates. There is a need to direct interventions at curbing its prevalence among undergraduates.
Effect of aqueous extract of Allium sativum (Garlic) on fertility in male Wistar rats
Authors: Osonuga IO , Faponle AS , Ezima EN , Adenowo TK , Adelegan AA
Published: May 2020

Background: Allium sativum (Garlic) is widely used as a food flavour and it has antimicrobial medicinal purposes. It has other beneficial effects such as improving the cardiovascular and immune systems. The likely effect of garlic on the testicular functions remains controversial.

Objective: To investigate the effects of fresh garlic on the fertility of male Wistar rats by quantitative determination of testosterone, follicle-stimulating hormone (FSH), and Luteinizing hormone (LH) levels, as well as the sperm properties.

Methods: The aqueous extracts of garlic were administered to the animals through the oral route. Thirty-five male rats were categorized into seven groups, with five rats each distributed as follows: high-dose, medium-dose, low-dose that were administered 750, 500, and 250 mg/kg body weight dosages of the aqueous extracts, respectively. Others were the control group, which received no extract, and the recovery groups received the same doses of the extract. The recovery groups were left for additional twenty-one days without receiving the extract.

Results: The results showed an increase in testosterone levels at medium to high-doses of the extract including sustained high levels in recovery groups. Also, there were increases in sperm motility and sperm viability.

Conclusions: These findings suggest garlic may play beneficial roles in the reproductive functions of male Wistar rats. The mechanisms for these effects may involve the interplay of many currently unknown factors.
Epidemiology of Coronavirus Disease (COVID-19) in Nigeria
Authors: Daniel OJ , Bamidele JO
Published: May 2020

In late December 2019, there was an outbreak of a new Coronavirus infection in Wuhan, Hubei Province, China, which caused acute respiratory syndrome of unknown aetiology. The World Health Organization (WHO) named the virus Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV2) or COVID-19 and declared the infection a pandemic on the 11th of March 2020. The first case of COVID-19 in Nigeria was reported on the 27th of February 2020 and since then the numbers of confirmed cases has been on the increase, at least in Nigeria. With no vaccine or cure in sight, only public health measures that include personal protective measures, physical distancing, environmental and travel-related measures have been recommended to mitigate and contain the spread of the disease. There is need to make testing for COVID-19 widely available so that the true burden of the infection will be described. This step should assist policy makers in making evidence-based decisions in the prevention and control of the disease.
Knowledge, utilization and clients’ satisfaction with antenatal care services in Primary Health Care Centres, in Ikenne Local Government Area, Ogun State, Nigeria
Authors: Sodeinde K , Onigbogi O , Odukoya O , Abiodun O
Published: May 2020

Background: Clients’ satisfaction with the quality of care in an antenatal clinic is the extent to which the health care system meets the clients’ expectations, aims and choices. Objective:  To assess the clients’ knowledge and satisfaction with antenatal care (ANC) services in Primary Health Centres in Ikenne Local Government Area of Ogun State, Nigeria. Methods: This descriptive cross-sectional study was conducted among 380 registered pregnant women who were selected using a multistage sampling method. The data were collected using a structured interviewer-administered questionnaire, constructed from a review of the Safe Motherhood Needs Assessment package and other available literature on antenatal care. Results: The mean age of the respondents was 27.8±5.5 years. The majority were married (91.6%). Health education was the leading ANC activity recognized by 98.7% of the respondents. Knowledge was poor as only 46.1% had good knowledge of at least 50% of total knowledge score. Overall, satisfaction with the services was good as the majority (96.8%) of the respondents were satisfied with the services. Marital status, number of antenatal visits and level of education were statistically significantly associated with the level of satisfaction (p < 0.001, 0.02 and 0.007 respectively). Conclusion: Though the knowledge of ANC was poor, overall satisfaction level was good. Programmes that improve maternal knowledge about ANC should be emphasized in PHCs.
Low back pain among hospital workers in Kano, North-west Nigeria
Authors: Abubakar MK , Rabiu A , Ibrahim MU , Musa KA , Muhammad S , Mamuda AA
Published: May 2020

Background: About 90% of individuals will experience back pain at one point or the other in their lives. Hospital workers are considered to have a considerable risk of developing low back pain. Objective: To determine the prevalence and risk factors for low back pain among health workers in tertiary hospitals in Kano, Nigeria. Methods: The study was a cross-sectional survey. A questionnaire was designed and administered to 200 personnel of the teaching hospitals in Kano. Socio-demographic characteristics, presence of low back pain, factors that relieve and aggravate the low back pain and relationship of back pain and work activities, were recorded on the questionnaire.  Results: The mean age of the respondents was 33.4±7.08 years. Sixty-six per cent of the respondents had back pain within a year of the study. There was a 29% point prevalence of low back pain among the respondents. Statistically significant association was established between various activities such as prolonged sitting and walking and pain in the lower back (p = 0.000). There was an association between low back pain and the type of job (department) of the respondents (p = 0.016). The dull ache was the predominant presentation (58%) followed by piercing and gripping in 20% and 19% respectively. Prolonged sitting was the main aggravating factor, while numbness was the main feature of referral in 18%. Only 5.0% of the respondents used medications for their back pain. Conclusion: Low back pain is common among hospital workers with a point prevalence of 29.1%. About 25% had low back pains that prevented participated in normal duty. Majority of the respondents believed back pain is preventable.
Prevalence and detection of medically unexplained symptoms among out-patients in a Primary Health Care setting in South-west Nigeria
Authors: Ogunsemi OO , Afe TO , Osalusi BS , Adeleye OO , Ale AO
Published: May 2020

Background: Medically unexplained symptoms are frequently encountered by physicians at the primary care level. The complexity lies in the ill-defined nature of the multiple physical symptoms and the similarity to several organic disorders. Objective: To determine the prevalence of medically unexplained symptoms and relate this to physicians detection rate in a primary care setting in South-west, Nigeria. Methods: The study was a cross-sectional, descriptive study of consecutive patients of the General Out-patient Department of Olabisi Onabanjo University Teaching  Hospital, Sagamu, Ogun State. Interviews were conducted on 472 participants using a purposely designed socio-demographic questionnaire and the self-administered Patient Health Questionnaire -15 to screen for somatic symptoms. Results: The ages of the participants ranged from 18 years to 90 years with the mean of 52.7±20.9 years. Out of the 472 participants, 225 (47.7%) met the criteria for medically unexplained symptoms using the Patient Health Questionnaire (PHQ). Across ages, medically unexplained symptoms were more often diagnosed among younger age groups especially those close to the age of 35 years (59.2%) [χ2 = 12.34, p = 0.02]. There were significant differences in the prevalence of somatisation across different levels of education [χ2= 9.78, p = 0.03]. Physicians were able to diagnose psychological disorders in 12.4% of participants (n = 28) with somatisation disorders. Conclusion: There was a moderately high prevalence of medically unexplained symptoms in primary health care settings and physicians’ detection rate of somatisation was also low. Physicians in primary health care should have a high index of suspicion for somatisation.
CLASSIFICATION OF RICE-PLANT GROWTH PHASE USING SUPERVISED RANDOM FOREST METHOD BASED ON LANDSAT-8 MULTITEMPORAL DATA
Authors: Triscowati Dwi Wahyu , Sartono Bagus , Kurnia Anang , Dirgahayu Dede , Wijayanto Arie Wahyu
Published: May 2020

Data on rice production is crucial for planning and monitoring national food security in a developing country such as Indonesia, and the classification of the growth phases of rice plants is important for supporting this data. In contrast to conventional field surveys, remote sensing technology such as Landsat-8 satellite imagery offers more scalable, inexpensive and real-time solutions. However, utilising Landsat-8 for classification of rice-plant phase required spectral pattern information from one season, because these spectral patterns show the existence of temporal autocorrelation among features. The aim of this study is to propose a supervised random forest method for developing a classification model of rice-plant phase which can handle the temporal autocorrelation existing among features. A random forest is a machine learning method that is insensitive to multicollinearity, and so by using a random forest we can make features engineering to select the best multitemporal features for the classification model. The experimental results deliver accuracy of 0.236 if we use one temporal feature of vegetation index; if we use more temporal features, the accuracy increases to 0.7091. In this study, we show that the existence of temporal autocorrelation must be captured in the model to improve classification accuracy.
MONITORING OF MANGROVE GROWTH AND COASTAL CHANGES ON THE NORTH COAST OF BREBES, CENTRAL JAVA, USING LANDSAT DATA
Authors: Susantoro Tri Muji , Wikantika Ketut , Yayusman Lissa Fajri , Tan Alex , Ghozali M. Firman
Published: May 2020

Severe abrasion occurred in the coastal area of Brebes Regency, Central Java between 1985 and 1995. Since 1997, mangroves have been planted around the location as a measure intended to prevent further abrasion. Between 1996 and 2018, monitoring has been carried out to assess coastal change in the area and the growth and development of the mangroves. This study aims to monitor mangrove growth and its impact on coastal area changes on the north coast of Brebes, Central Java Province using Landsat series data, which has previously proven suitable for wetland studies including mangrove growth and change. Monitoring of mangrove growth was analysed using the normalised difference vegetation index (NDVI) and the green normalised difference vegetation index (GNDVI) of the Landsat data, while the coastal change was analysed based on the overlaying of shoreline maps. Visual field observations of WorldView 2 images were conducted to validate the NDVI and GNDVI results. It was identified from these data that the mangroves had developed well during the monitoring period. The NDVI results showed that the total mangrove area increased between 1996 and 2018 about 9.82 km2, while the GNDVI showed an increase of 3.20 km2. Analysis of coastal changes showed that the accretion area about 9.17 km2 from 1996 to 2018, while the abrasion being dominant to the west of the Pemali River delta about 4.81 km2. It is expected that the results of this study could be used by government and local communities in taking further preventative actions and for sustainable development planning for coastal areas.
FISHING-VESSEL DETECTION USING SYNTHETIC APERTURE RADAR (SAR) SENTINEL-1 (CASE STUDY: JAVA SEA)
Authors: Fitriani Sarah Putri , Gaol Jonson Lumban , Kushardono Dony
Published: May 2020

The synthetic aperture radar (SAR) instrument of Sentinel-1 is a remote sensing technology being developed to enable the detection of vessel distribution. The purpose of this research is to study fishing-vessel detection using SAR Sentinel-1 data. In this study, the constant false alarm rate method (CFAR) for Sentinel-1 data is used for the detection of fishing vessels in Indramayu sea waters. The data used to detect ships includes SAR Sentinel-1A images and vessel monitoring system (VMS) data acquired on 8 March and 20 March 2018. SAR Sentinel-1 imagery data is obtained through pre-processing and object identification using Sentinel Application Platform (SNAP) software. Overlay analysis is then used to enable discrimination of immovable and movable objects and validation of ships detected from SAR Sentinel-1 imagery is performed using VMS data. From overlay analysis, 46 ships were detected on 8 March 2018 and 39 ships on 20 March 2018. Of all the ship points detected using SAR Sentinel-1, 7.06% could be detected by VMS data while 92.94% could not. The number of ships detected by SAR Sentinel-1 is greater than those detected by VMS because not all ships use VMS devices.
CLOUD IDENTIFICATION FROM MULTITEMPORAL LANDSAT-8 USING K-MEANS CLUSTERING
Authors: Sunarmodo Wismu , Hayati Anis Kamilah
Published: May 2020

In the processing and analysis of remote-sensing data, cloud that interferes with earth-surface data is still a challenge. Many methods have already been developed to identify cloud, and these can be classified into two categories: single-date and multi-date identification. Most of these methods also utilize the thresholding method which itself can be divided into two categories: local thresholding and global thresholding. Local thresholding works locally and is different for each pixel, while global thresholding works similarly for every pixel. To determine the global threshold, two approaches are commonly used: fixed value as threshold and adapted threshold. In this paper, we propose a cloud-identification method with an adapted threshold using K-means clustering. Each related multitemporal pixel is processed using K-means clustering to find the threshold. The threshold is then used to distinguish clouds from non-clouds. By using the L8 Biome cloud-cover assessment as a reference, the proposed method results in Kappa coefficient of above 0.9. Furthermore, the proposed method has lower levels of false negatives and omission errors than the FMask method.
Kajian Manfaat Senyawa Aktif dalam Ekstrak Kulit Buah Coklat (Theobroma Cacao )
Authors: - Sukatik - , - Yuli Yetri , - Rahmi Hidayati , Putra Roni Tri , - Ratih Paramitha
Published: May 2020

Identification of active compounds in cacao pod rind has been done. Cacao pod rind contained active compound alkaloid, theobromine (3,7-dimethylxanthine). Cacao pod rind extract contained some other active compounds mixed flavonoid or condensed tannin such as anthocyanin, anthocyanidin, catechin, epicatechin, epigallocatechin, and leucoanthocyanidin.

Cacao pod rind was extracted by maceration using methanol 70% and fractionated with hexane and ethyl acetate to obtain polar extracts. This study used an experimental method that was analyzed descriptively using Gas Chromatography-Mass Spectrometry (GC-MS) and Liquid Chromatography-Mass Spectrometry (LC-MS).

Phytochemical screening test showed cocoa pod rind extracts contained alkaloids, flavonoids, tannins, terpenoids, and saponins. GC-MS analysis showed that cacao pod rind extracts contained 24 compounds. Polar extracts analysis with LC-MS obtained 10 compounds contained hydroxy groups, which can be used as corrosion inhibitors on metal. The result of this study showed that cocoa pod rind has potential as corrosion inhibitor. It also has potential as an anti-bacterial and antioxidant.
Modeling of temperature profiles and efficiency of heat transfer equipment with intensifiers
Authors: Farakhov T. M. , Laptev A. G.
Published: May 2020

The problem of determination of temperature fields in the flow and efficiency of heat exchangers with intensification by metal chaotic packings is considered. Results of experimental studies of the heating of industrial oil with hot water in a "pipe-in-pipe" heat exchanger, where a chaotic packing of nominal size 6 mm is placed in the internal pipe, are presented. The packing, due to turbulence in the flow of oil, provides transition from the laminar to the turbulent regime and a significant increase in heat transfer coefficient (by 15-20 times). For calculating temperature profiles in channels, a cell model of the flow structure is written, where the main parameters are thermal number of transfer units and number of complete mixing cells. Expressions are given for calculating these parameters in pipes with chaotic packings. Results of calculating temperature profiles for various flowrates of the heated oil are presented and satisfactory agreement with experimental data is shown. The calculation of temperature fields makes it possible to take into account a change in thermophysical properties of flows along the length of the channels, which is especially important for hydrocarbon mixtures with high viscosity and large Prandtl numbers. The presented mathematical model allows to take into account the structure of heat carrier flows in apparatus with intensifiers and to calculate thermal efficiency of the processes of heating and cooling the media.
Development of an algorithm for effective management of the technological process of the industrial enterprise based on the programmable logic controller TM171PDM27S Schneider Electric
Authors: Ivanovа V. R. , Novokreshenov V. V. , Rozhencova N. V.
Published: May 2020

Ventilation and air conditioning systems are necessary to regulate air exchange, maintain temperature and humidity, and provide a comfortable microclimate. Their installation is certainly relevant in premises for various purposes: at industrial facilities, in residential buildings, in administrative institutions, warehouses and others. In order to effectively carry out and ensure the proper functioning of ventilation, it is necessary to introduce automated control schemes for the operation of these systems, as well as the use of various modern equipment (ventilation units, ventilation units, silencers, air filters, air heaters, etc.) to increase the reliability of airspace cleaning and the cost-effectiveness of manufacturing the system generally. The paper presents the scheme and algorithm for the effective control of the technological process of the ventilation system of an industrial enterprise based on the TM171PDM27S Schneider Electric programmable logic controller. The analysis of existing ventilation systems is carried out, the description of ventilation systems is presented, the stand's appearance is presented, the choice of a programmable logic controller is justified, methodological recommendations for acquiring programming skills using the EcoStruxure Machine Expert - HVAC environment are presented, automatic control of the supply ventilation system for the foundry of an industrial enterprise is organized goals of a visual study of elements of ventilation systems, methods of regulation and control of parameters in ventilation systems. The main goal of creating a training stand is to study the settings and operating modes of automated ventilation and air conditioning control systems. In the course of further improvement of the circuit, classes of the following nature are possible: determination of the static and dynamic characteristics of the fan; study of the characteristics of an automated damper; pressure regulation by controlling a fan, etc.
Administrasi Ketatausahaan Sekolah
Authors: sarinami putri
Published: May 2020

Administration is also interpreted as an activity of determining everything that happens in the organization, to be used as information material by the leadership, which covers all activities ranging from making, processing, structuring to storing all the information needed by the organization.
Makalah Mengenai Narkoba
Authors: Archika Nazwa Dwi
Published: May 2020

Makalah tentang Narkoba
Perangkat Lunak
Authors: syahputri Dea
Published: May 2020

Perangkat Lunak merupakan salah satu perangkat yang dibutuhkan dalam menjalankan komputer. Perangkat lunak adalah perangkat yang tidak dapat dilihat dan disentuh secara langsung, namun dapat dioperasikan oleh user atau penggunanya. Perangkat lunak komputer (software) merupakan sekumpulan data elektronik yang disimpan dan diatur oleh komputer, data elektronik yang disimpan oleh komputer itu dapat berupa program atau instruksi yang akan menjalankan suatu perintah.Melalui software atau perangkat lunak inilah suatu komputer dapat menjalankan suatu perintah. Secara garis besar software atau perangkat lunak dapat diklasifikasikan menjadi tiga bagian yaitu, perangkat lunak sistem operasi, perangkat lunak sistem aplikasi dan bahasa pemograman.Computer software is one of the devices needed to run a computer. Software is a device that cannot be seen and touched directly, but can be done by the user or the user. Computer software (software) is a collection of electronic data collected and compiled by a computer, electronic data stored by a computer may consist of programs or directions that will execute an order. It is through this software or software that a computer can run a request. Broadly speaking, software or software can be divided into three parts, namely, operating system software, application system software and programming languages.
BLAST Analysis of Sars-Cov-2 deliniates the functionality of the virus's protein
Authors: Popescu Diana Maria , Marghidanu Eliza
Published: May 2020

In light of recent events that have been happening across the globe until April 2020, I and my colleague decided to bring light upon the main characteristics of the new coronavirus outbreak from the Wuhan province in China, in December 2019. We first compared this SARS-Cov-2 to the old SARS-Cov-1 that appeared in 2003 and found a striking similarity between their genomes and therefore as we showed in our papers they also share some properties. Then we identified the main proteins that form the Covid-19 and in order to find new characteristics of this virus. This paper has informing purposes as in these dark times the best way to cooperate with the ongoing threat is to learn more about it.
NIRLEKA NASUTION
Authors: Nasution Nirleka
Published: May 2020

Perangkat lunak adalah sebuah program komputer yang menjadi jembatan penghubung antara pengguna komputer (user) dengan komputer. Dengan kata lain, perangkat lunak merupakan penerjemah antara user sebagai pemberi intruksi dan komputer sebagai pihak yang menerima intruksi. Software memiliki sifat bertolak belakang dengan hardware. Jika fisik hardware dapat disentuh, lain halnya dengan software, software tidak dapat disentuh dengan indra peraba secara fisik. Namun, software sangat penting dalam pengoprasian komputer. Karna tanpa software komputer hanya mesin yang tidak dapat dioperasikan dengan intruksi user. Sistem software dibuat dengan menggunakan bahasa pemrograman yang ditulis oleh programmer sehingga menjadi kode yang dapat dikenali perangkat keras.Kata kunci: Perangkat Lunak Komputer
software kumputer
Authors: Saragih Hanny Puput Eliyarista
Published: May 2020

Perangkat lunak (software) adalah istilah khusus untuk data yang diformat, dan disimpan secara digital. Perangkat lunak tersusun atas program yang menentukan apa yang harus dilakukan oleh komputer. Komputer harus melaksanakan instruksi yang terdapat dalam program untuk mendapatkan hasil yang berguna. Ada dua macam perangkat lunak yaitu sistem software dan application software. Sistem software berguna untuk mengatur file, me-load dan mengeksekusi program serta menerima perintah dari mouse atau keyboard. Sistem software biasa disebut dengan sistem operasi (operating system). Sedang application software adalah software yang digunakan untuk menyelesaikan suatu pekerjaan. Contoh application software adalah Microsoft Word, Microsoft Excel.
Indian agriculture, air pollution, and public health in the age of COVID
Authors: McDonald Andrew J , Balwinder-Singh  , Jat M.L. , Craufurd Peter , Hellin Jon , Hung N.V. , Keil Alwin , Kishore Avinash , Kumar Virender , McCarty Jessica L. , Pearson Pam , Samaddar Arindam , Shirsath Paresh , Shyamsundar Priya , Sidhu Harminder Singh , Singh Ashok Kumar , Singh Sudhanshu , Srivastava Amit , Urban Emily , Malik R.K. , Gerard Bruno
Published: May 2020

Emerging evidence supports the intuitive link between chronic health conditions associated with air pollution and the vulnerability of individuals and communities to COVID-19. Poor air quality already imposes a highly significant public health burden in Northwest India, with pollution levels spiking to hazardous levels in November and early December when rice crop residues are burned. The urgency of curtailing the COVID-19 pandemic and mitigating a potential resurgence later in the year provides even more justification for accelerating efforts to dramatically reduce open agricultural burning in India.
Fabrication of Low Loss and Near Zero Dispersion Suspended Core Polypropylene Fibers for Terahertz Communications Using Infinity 3D Printing Technique
Authors: Xu Guofu , Nallappan Kathirvel , Cao Yang , Skorobogatiy Maksim
Published: May 2020

In this work we explore infinity 3D printing technique to fabricate continuous several-meter-long low-loss near-zero dispersion suspended-core polypropylene fibers for application in terahertz communications. The novel filament deposition modeling (FDM)- based infinity printing technique allows continuous fabrication of unlimited in length fiber sections of complex transverse geometries using advanced thermoplastic composites, and in our opinion is poised to become a key technique for advanced terahertz fiber manufacturing. Furthermore, particular attention in our work is payed to process parameter optimization for printing with low-loss polypropylene plastic, as well as an in-depth comparison between fibers printed using standard FDM 3D printers and infinity 3D printers.
The Artificial Conscience of Lethal Autonomous Weapons: Marketing Ruse or Reality?
Authors: Noto La Diega Guido
Published: May 2020

There are two interwoven trends in cyber-counterterrorism. On the one hand, countries such as Israel and Russia announce the deployment of lethal autonomous weapons. Such weapons constitute the third revolution in warfare, after gunpowder and nuclear arms. On the other hand, researchers try and embed ethics into the design of these weapons (so-called artificial conscience or "ethics by design"). The contention of this paper is that artificial conscience is a mere marketing ruse aimed at making the deployment of lethal autonomous weapons and other autonomous robots acceptable in society. Whereas there are strong reasons to object to this trend, some solutions to the pitfalls of ethics by design have been presented. However, they do not seem viable in a military context. In particular, the so-called customised-ethics approach is applicable only to commercial and civil machines. When deciding whether to kill 600 civilians in order to hit 14 al-Qaeda leaders, which set of values should be implemented? This is a compelling argument for banning lethal autonomous weapons altogether. PLEASE CITE AS Guido Noto La Diega, ‘The artificial conscience of lethal autonomous weapons: marketing ruse or reality?’ (2018) 1 Law and the Digital Age 1-17
Origin of manganese in nannofossil calcite based on synchrotron nanoXRF and XANES
Authors: Suchéras-Marx Baptiste , Giraud Fabienne , Daniel Isabelle , Rivard Camille , Aubry Marie-Pierre , Baumann Karl-Heinz , Beaufort Luc , Tucoulou Rémi , Simionovici Alexandre
Published: May 2020

Calcareous nannofossils are micrometric calcite platelets secreted by coccolithophores and incertae sedis photosynthetic algae. Calcareous nannoplankton inhabit the photic zone from coast to open-ocean and have left an abundant fossil record since the Triassic. Therefore, they constitute an interesting material for geochemical studies although it has been overlooked in comparison to foraminifera. We have analyzed manganese distribution and valence in six calcareous nannofossil species representing different ages (Recent to Jurassic) and geological settings (land sections and deep ocean core-tops) and with different ultrastructures to assess the potential of Mn as paleobiological or paleoenvironmental proxy. Nano X-Ray Fluorescence (XRF) maps were established at the ESRF ID22NI and ID21 beamlines and Mn K-edge X-Ray Absorption Near Edge Structure (XANES) at ID21. Mn is more abundant in nannofossils from the pre-Quaternary rock samples than from core-top samples. In nannofossil rock samples, Mn nanoXRF maps show distributions correlated with primary crystalline organization whereas in nannofossil core-top samples, Mn is either absent or doesn’t follow the crystal organization. XANES analyses show that Mn is in the form of MnCO3. All these observations argue for Mn incorporation within calcareous nannofossils controlled by diagenesis through overgrowth of secondary calcite (Ca, Mn)CO3. Crusts grew along the original crystal growth directions. The incorporation of Mn in some core-top samples highlights potential early diagenesis input when the nannofossil lies on the seafloor or is still in the water column. Mn should therefore be considered a critical tool to identify diagenetic overgrowth rather than primary environmental conditions.
Information processing in tax decisions: A MouselabWEB study on the Allingham and Sandmo model of income tax evasion
Authors: Kogler Christoph , Olsen Jerome , Müller Martin , Kirchler Erich
Published: May 2020

The highly influential Allingham and Sandmo model of income tax evasion framed the decision whether to comply or to evade taxes as a decision under uncertainty, assuming that taxpayers are driven by utility-maximization. Accordingly, they should choose evasion over compliance if it yields a higher expected profit. We test the main assumptions of this model considering both compliance decisions and the process of information acquisition applying MouselabWEB. In an incentivized experiment, 109 participants made 24 compliance decisions with varying information presented for four within-subject factors (income, tax rate, audit probability, and fine level). Additional explicit expected value information was manipulated between-subjects. The results reveal that participants attended to all relevant information, a prerequisite for expected value like calculations. As predicted by the Allingham and Sandmo model, choices were clearly influenced by deterrence parameters. Against the assumptions, these parameters were not integrated adequately, as evasion did not increase with rising expected rate of return. More transitions between information necessary for calculating expected values did not result in higher model conformity, just as presenting explicit information on expected values. We conclude that deterrence information clearly influences tax compliance decisions in our setting, but observed deviations from the model can be attributed to failure to integrate all relevant parameters.
The Rise of COVID-19 is Associated with Support for World Leaders
Authors: Yam Kai Chi , Jackson Joshua Conrad , Barnes Christopher Montgomery , Lau Tsz Chun , QIN XIN , Lee Hin Yeung
Published: May 2020

COVID-19 has emerged as one of the deadliest and most disruptive global pandemics in recent human history. Drawing from political science and psychological theory, we examine the effects of daily confirmed cases in a country on citizens’ support for the nation’s leader through first 120 days of 2020. Using two unique datasets which comprises daily approval ratings of head of government (N = 1,411,200) across 11 world leaders (Australia, Brazil, Canada, France, Germany, Hong Kong, India, Japan, Mexico, the United Kingdom, and the United States), we find a strong and significant positive association between new daily confirmed and total confirmed COVID-19 cases in the country and support for the heads of government. Exploratory analyses reveal that this effect might be strongest for countries high on individualism. These analyses show that world leaders benefit from COVID-19, at least in the early months of the pandemic. Moreover, these findings suggest that the previously documented “rally ‘round the flag” effect applies beyond just intergroup conflict.
Video improves learning in higher education: A systematic review
Authors: Noetel Michael , Griffith Shantell , Delaney Oscar , Sanders Taren , Parker Philip David , del Pozo Cruz Borja , Lonsdale Chris
Published: May 2020

Universities around the world are incorporating online learning, often relying upon videos (asynchronous multimedia). We systematically reviewed the effects of video on learning in higher education. We searched five databases using 27 keywords to find randomised trials that measured the learning effects of video among college students. We conducted full-text screening, data-extraction, and risk of bias in duplicate. We calculated pooled effect-sizes using multi-level random-effects meta-analysis. Searches retrieved 9,677 unique records. After screening 329 full-texts, 105 met inclusion criteria, with a pooled sample of 7,776 students. Swapping video for existing teaching methods led to small improvements in student learning (g = 0.28). Adding video to existing teaching led to strong learning benefits (g = 0.80). Although results may be subject to some experimental and publication biases, they suggest that videos are unlikely to be detrimental and usually improve student learning.
The Adult Arithmetic History Questionnaire
Authors: Sury Dana , Gaab Nadine
Published: May 2020

The Adult Arithmetic History Questionnaire (AAHQ) is a self-report survey tool designed to measure the history of arithmetical difficulties in adults. The AAHQ was developed based on the Adult Reading History Questionnaire (ARHQ, Lefly & Pennington, 2000) to allow a comparison between an individual’s history of reading and arithmetic development (including potential difficulties) across the lifespan. Using a self-report survey, the AAHQ aims to assess the history and persistence of difficulties in learning arithmetic and the overall use of arithmetic across the lifespan. It focuses on early number knowledge, on potential difficulties in learning basic arithmetic and arithmetical facts retrieval, and the daily use of numbers and arithmetic from childhood to adulthood. The AAHQ has yet to be validated, and normative scores are unavailable at this point. We here introduce this version of the AAHQ and invite researchers to use it and to comment on the questionnaire. We further encourage the research community to share norming data with us. Once available, these will be combined and shared with the research community.
ASUHAN KEPERAWATAN MATERNITAS PADA KASUS KOMPLIKASI KEHAMILAN, PERSALINAN DAN NIFAS
Authors: Putri Yelmi Reni , Hastina Evi
Published: May 2020

Buku ini merupakan salah satu buku panutan bagi mahasiswa keperawatan maupun praktisi keperawatan maupun praktisi keperawatan tau sebagai bahan ajar bagi dosen mata kuliah Keperawatan Maternitas. Klien pada Keperawatan Maternitas berfokus pada wanita, bayi, dan keluarga yang menuntut seseorang perawat harus kompoten serta peka terhadap kebutuhan klien secara individual dimana proses perkembangan yang almiah. Perawat juga dituntut untuk mewaspadai kondisi kondisi patologis ibu dan anak serta mampu mengidentifikasi komplikasi-komplikasi yang mungkin terjadi.
Asuhan kebidanan pada persalinan & bayi baru lahir
Authors: Padlilah Rahmi , Ariyanti Ririn
Published: May 2020

Buku ini sebagai panduan mahasiswa kebidanan yang dapat dimanfaatkan dalam proses perkuliahan, karena dalam buku ini telah dilakukan pemaparan yang sistematis dan praktis dan disesuaikan dengan kurikulum yang berlaku, sehingga memudahkan mahasiswa untuk menggunakannya. Dengan buku ajar ini diharapkan dapat memberikan salah satu referensi buat mahasiswa yang dapat dipergunakan bagi kepentingan pembelajaran maupun praktek di lahan dan masyarakat.
IBU HAMIL DAN NIFAS DALAM ANCAMAN DEPRESI
Authors: Fidora Irma
Published: May 2020

Proses kehamilan kemudian persalinan dan diikuti masa nifas merupakan hal yang membedakan perempuan dengan pria. Kedua proses ini menjadi sangat penting karena merupakan wujud dari puncak feminisme seorang perempuan. Bagi sebagian besar perempuan, dapat hamil, melahirkan dan menjadi seorang ibu dianggap sebagai suatu takdir dan juga harapan mereka. Ini merupakan alasan yang dapat memperkuat identitas diri seorang perempuan secara biologis, tubuh dan alat reproduksi perempuan telah memberikan suatu pengalaman menarik seperti menstruasi pertama (menarche), pertumbuhan payudara, kehamilan, menyusui hingga berhentinya siklus menstruasi (menopause).
PENDIDIKAN KARAKTER ISLAMI: KARAKTER ULUL ALBAB DI DALAM AL-QUR’AN
Authors: Chanifah Nur , Samsudin Abu
Published: May 2020

Buku pendidikan karakter Islami ini merupakan salah satu buku penting dan cocok untuk menghadapi globalisasi dan modernisasi saat ini. Globalisasi dan modernisasi telah mengubah cara atau gaya hidup masyarakat saat ini yang cenderung konsumtif, hedonis, dan materialis. Tidak hanya itu saja, banyak masalah yang muncul seperti krisis moral dan tingkat kriminalitas yang semakin merajalela. Untuk itu, perlu kita kembalikan ruh pendidikan kita sebagai salah satu elemen penting dalam mendidik dan mencerdaskan bangsa agar berakhlak mulia.