bluuebunny/crossref_metadata_2025 huggingface dataset:
Pedogenic forms and distribution of potassium in soils along a complex toposequence within Forestry Research Institute of Nigeria, Ibadan
Authors: Fawole O.A. , Ojedokun R.O. , Asabia L.O. , Shaib-Rahim H.O. , Oluwaponle A.I.
Published: April 2021

The study was designed to examine the forms and pedogenic distribution of potassium in soils formed along a toposequence within Forestry Research Institute of Nigeria, Ibadan. Four (4) profile pits were established, described and sampled. Particle size, soil reaction and organic matter were determined in addition to exchangeable K, solution K and Fixed K which were determined using flame  photometer. Results of particle size analysis showed that the silt content is low and varied randomly within the profiles possibly due to their location on the topography. The clay content was relatively high in the genetic B horizons. The exchangeable K, solution K, fixed K and total K varied randomly across the profiles, and this can also be attributed to the topographic positions. Results also showed that there is a high correlation between clay and exchangeable K and between total K and organic matter. This is an indication that soils with high clay content are likely to be rich in exchangeable K and where organic matter in the soil is high, the soil is likely to have a high value of total K

Key words: Toposequence, Pedogenic, Potassium
Perception of facility readiness and health worker willingness to participate in the COVID-19 pandemic response in a treatment centre in Nigeria
Authors: Okoeguale J. , Tobin E.A. , Efediyi R.A. , Njoku A. , Erameh C. , Momoh M.
Published: April 2021

Objectives: The study aimed to investigate health workers’ knowledge, self - preparedness and willingness to volunteer for outbreak response and perceived institutional readiness to manage confirmed or suspected cases of COVID-19.Methods: Across-sectional study was carried out among 300 consenting healthcare workers in a COVID19 treatment facility in Edo  state, Nigeria. Data were collected between April and May 2020 using selfadministered questionnaires. Analysis was done using  Statistical Package for Social Sciences, with Chisquare test and logistic regression applied with a 95% confidence interval. All ethical considerations were met.Results: One hundred and seventeen (39.0%) respondents were willing to volunteer in the response, with respondents who were confident in their ability to suspect a case, communicate risk effectively and who believed the facility should be a treatment centre being 3.55, 2.07 and 2.30 times more likely to volunteer respectively (P< 0.001, P = 0.04 and P = 0.02 respectively). Two hundred and seven (69.0%) respondents felt the facility was ready to manage confirmed cases. Management commitment 255 (85.0%) was the factor acknowledged as most indicative that the facility was ready to handle cases, with availabiltiy of personal protective wears as the least mentioned 166 (55.3%).Conclusion: Many health workers who should be in the frontline were unwilling to volunteer to manage cases, though perceived facility readiness was high. Health managers should take steps to address identified barriers and provide conducive work  environments.

Keywords: COVID-19, Health providers, Willingness
Management of type B2 and B3 post-operative proximal periprosthetic femoral fractures, Oghara experience
Authors: Enemudo R.E.T. , Edomwonyi E.O. , Odatuwa-Omagbemi D.O. , Obumse A.T. , Awa M.M.
Published: April 2021

Objective: To report the outcome of treatment of Types B2 and B3 Post- operative Periprosthetic proximal femoral fracture (PPFF) in four patients treated in Delta State University Teaching Hospital, Oghara, Delta State, using Vancouver classification of Duncan and Masri.

Methodology: A retrospective study of four cases managed in this hospital. Information retrieved from case notes were sex, age, duration of prosthesis, treatment given, complications and outcome of treatment.

Result: Atotal of 4 patients were reviewed in the study, 2 males and 2 females with a M: F of 1: 1. Duration of the implant before treatment was 5-12 years (mean of 8.3years). Age range was 60-83years (mean of 67.5 years). Two patients had Type B2 and two had Type B3. Average intraoperative blood loss was 1 litre. Duration of surgery was 3-4 hours. Duration of hospital stay was between 3 weeks and 5 months. The complications seen were primary haemorrhage, wound infection, hip dislocation and pulmonaryembolism. The outcome was good for 3 patients and fair in 1, using Harris Hip Score.

Conclusion:Vancouver classification of Duncan and Masri is effective in the treatment of PPFF.

Key words; Periprosthetic femoral fracture, Long stem hip prosthesis, Vancouver classification, osteolysis.
Early routine amniotomy: an unnecessary procedure
Authors: Ndayisenga J.P. , Mukamana D. , Tengera O. , Murekezi J. , Muhayimana A. , Nsaba Uwera Y.D.
Published: April 2021

Early routine amniotomy, also known as artificial rupture of the amniotic membrane, is one of the procedures used to induce and accelerate labour before cervical dilation reaches four centimeters. Because of its benefits and risks, there are at least two schools of thought about this controversial issue. The purpose of this paper is to argue against early routine amniotomy as an unnecessary procedure that can have drastic and unintended outcomes associated with the labour process, the fetus, and the mother. This commentary paper articulates that early routine amniotomy is a questionable procedure because its risks outweigh its benefits. Therefore, routine early amniotomy should be discouraged among obstetrical procedures.

Keywords: Amniotomy, artificial rupture of membrane, routine, labour, process
The effect of different dietary vitamin and mineral levels on certain production parameters, including egg shell characteristics of breeding ostriches
Authors: Brand TS , Tesselaar GA , Hoffman LC , Brand Z
Published: April 2021

Earlier studies on breeding birds indicated no effect of dietary energy-content on feed intake. This observation is contradictory to results for other animals and/or poultry where feed intake decreases with an increase in dietary energy level. Literature revealed that a lack of certain nutrients may cause animals to consume more feed than necessary to satisfy their nutrient requirements for these limiting nutrients. In this study eight diet groups were evaluated. A standard commercial diet plus one of the following supplements: (i) Standard diet without a vitamin and mineral premix pack (control diet), (ii) with a normal premix pack, (iii) with normal vitamin and 2 x trace elements (M x 2), (iv) with normal trace elements and 2 x vitamins, (v) with a normal premix pack and limestone added as calcium source; (vi) with a normal premix pack and monocalcium phosphate added as phosphorus source, (vii) with a normal premix pack and soybean oilcake added as crude protein source, (viii) with a normal premix pack and linseed added as a fatty acid source. Significant differences were recorded in the quantity of feed ingested by birds between the diet with surplus minerals (M x 2) (Group 3) (2.3 ± 0.3 kg/bird/day), the diet with no vitamins and minerals added (Group 1) (2.7 ± 0.3 kg/bird/day) and the diet with added fatty acids in the form of linseed (Group 5) (2.9 ± 0.5 kg/bird/day). This indicates the possibility that ostriches may adjust feed intake to satisfy their mineral requirements. No statistically significant relationship was found between the thickness and strength of the shell. Significant differences in shell strength (mean value of 154.7, 109.9, 140.4, 142.7, 153.0, 143.4, 138.4 and 151.1 N/cm2, respectively) were found between all treatments, but no specific pattern could be identified. Results further revealed no effect of dietary treatment on egg production, dead-in-shell eggs (DIS), infertile eggs or chick production. Further experiments that include certain dietary treatments during the five months rest period are currently being done to quantify the effect of the addition of minerals and vitamins during this period on the production of breeding ostriches.Keywords: Eggshell strength; feed intake, minerals, vitamins
Influence of electrical stimulation on carcass and meat quality of Kosher and conventionally slaughtered cattle
Authors: Agbeniga B , Webb EC
Published: April 2021

In a previous study regarding the effects of Kosher and conventional slaughter techniques on carcass and meat quality of cattle, it was speculated that electrical stimulation may have affected some of the meat qualities. Therefore, the objective of this study was to investigate the effects of electrical stimulation (ES) and non-electrical stimulation (NES) on key carcass and meat quality attributes of cattle slaughtered by Kosher vs. conventional slaughter methods. Carcass pH and temperature profiles over a 24 h post mortem (pm) period, meat shear force and water holding capacity were investigated in feedlot type cattle of comparable weights and breed types. Results showed that the combined effects of slaughter methods did not influence the meat quality attributes, but there were differences within the slaughter groups. The effect of ES on carcass pH lasted longer within the conventionally slaughtered group (12 h), than in the Kosher slaughter group (6 h). Muscle samples from the ES groups for both slaughter methods were more tender. Electrical stimulation also had a significant effect on the cooking loss from Kosher meat, while there was no significant difference in meat from the conventional slaughter methods. The results show that ES influences certain meat and carcass quality attributes of cattle, based on the way cattle were slaughtered.Keywords: Carcass pH, cooking loss, drip loss, electrical stimulation, shear force, slaughter technique
Conception rate and fecundity of Dohne Merino ewes in a continuous mating system
Authors: Brand TS , Terblanche S , Jordaan JW
Published: April 2021

A study was conducted to evaluate the conception rate and fecundity of Dohne Merino ewes in an intensive sheep production system, where continuous mating was applied. The study was conducted at the Kromme Rhee research farm. Ninety-two 3-year-old Dohne Merino ewes were used in the trial and allocated to irrigated-lucerne equal-sized paddocks of 0.85 ha. Rotational grazing was applied at a stocking rate of 15 ewes per hectare, with rams left with the ewes continuously. A self-formulated creep feed and lick was provided to the lambs and ewes, respectively, on an ad libitum basis. The experimental animals were weighed every second week and lambs were weaned at approximately 120 days of age. The statistical procedures indicated that 65.4% of the ewes conceived within 81 days after lambing. Analyses of variance (ANOVA) were performed on the observed variables. The Shapiro-Wilk test was performed to test for normality and Student’s-t least significant differences (LSD) were calculated at the 5% level of confidence, to compare the treatment means. Regression analyses were performed to establish the contribution of each variable to the predicted “days after lambing”. The stepwise selection method was executed in order to select the variables that significantly contributed to the predicted “days after lambing”. There was no significant difference in “days after lambing” and conception weight between ewes that produced single, twin or triplet lambs. Results also indicated that a more rapid breeding system is achievable on irrigated pastures. However, the sustainability of such a system needs to be tested further to determine the effect of the accelerated system on the productive lifespan of the ewes.Keywords: Accelerated breeding, intensive sheep production, pastures
Milk production of dairy cows as affected by the length of the preceding dry period
Authors: Useni BA , Muller CJC , Cruywagen CW
Published: April 2021

The objective of the study was to determine the effect of the duration of the dry period (DP) on the milk yield and milk composition during the following lactation. Milk performance records of 561 Holstein cows, with a previous DP from the Elsenburg Research Farm obtained from the National Milk Recording Scheme, were used in the study. Four groups of dairy cows were identified, based on the duration of their dry period, i.e. cows with a DP of less than 60 days, DP of 61 to 90 days, DP of 91 to 120 days and DP of more than 121 days. The number of records for each group was 76, 162, 83 and 240 lactations, respectively. An ANOVA was conducted using the Generalized Linear Model of SAS to compare milk yield and milk composition according to the DP length. Almost 43% of cows had a DP longer than 121 days, while less than 14% of cows had a DP of less than 60 days. The milk yield was positively affected by DP length. Cows with a DP of less than 60 days produced less milk than cows with longer (more than 61 days) dry periods, e.g. 6462 ± 321 vs. 7393 ± 99 kg. Results were similar for cows in their second and fourth parity. In addition, the milk composition of cows was also affected by DP length, i.e. higher fat and protein levels in the milk from cows with a short DP. Cows in the third lactation with a DP above 121 days produced more milk than the other DP groups. However, the milk composition of cows in the third lactation was not affected by DP length. A DP of less than 60 days reduced milk yield, while an extended DP of more than 121 days would be costly for the dairy farmer even though milk yield was higher. A long dry period may also result due to an excess body condition and calving complications during the subsequent lactation.Keywords: Dry period, milk yield, milk composition, dairy cows
The profitability and production of a beef herd on transitional Cymbopogon- Themeda veld, receiving three different levels of lick supplementation - Preliminary results
Authors: Foster LA , Fourie PJ , Neser FWC
Published: April 2021

The importance of containing costs through the optimal utilization of feed emphasizes the need to optimize, rather than maximize, the rate of reproduction. It is, however, unknown which lick supplementation regimen, provided to an extensive beef herd on mixed veld, could bring about the most profitable and efficient farming enterprise. The aim of the study was thus to determine what lick supplementation regime would be most profitable in an extensive beef production system maintained on transitional Cymbopogon-Themeda veld. The different lick supplementation regimens offered differed in crude protein (CP) content, percentage non-degradable protein (NDP), metabolisable energy (ME) content, and recommended daily intake. A herd of Drakensberger cows and heifers was divided into three treatment groups (Treatment A, Treatment B and Treatment C), with 70 animals (n = 70) per treatment group. The CP, NDP, ME content of the licks provided in Treatment A were higher than those provided in Treatment B and C, while the CP, NDP, ME content of the licks provided in Treatment B were higher than those provided to Treatment C, but lower than those provided to Treatment A. The first two years’ (2011 - 2012 and 2012 - 2013) preliminary results indicate no significant differences in parameters that affect cow herd performance (weaning weight, cow herd pregnancy rate, intercalving period) between treatments. However, substantial cost differences in the lick supplied between treatments was recorded; thus, affecting profitability. Significant differences between treatments in the pregnancy rates of the first-calf heifers was recorded in the second year, and indicated that providing protein in a drought during summer to first calf heifers may increase the calving rate and hence profitability.Keywords: Beef cattle, cow herd production, extensive farming, lick supplementation, profitability
A consumer perspective of the South African red meat classification system
Authors: Vermeulen H , Schonfeldt HC , Pretorius B
Published: April 2021

The South African consumer market is characterised by socio-economic and cultural diversity. Food expenditure patterns, behaviour and preferences differ significantly between the various socio-economic sub-groups. Packaging information, including red meat classification information, could be an important tangible resource used by consumers to gauge product quality. The first objective of the research reported in this paper is to investigate the red meat knowledge, usage and perceptions regarding beef and sheep meat classification and related quality parameters among South African consumers. Consumer perceptions of red meat classification were extracted from a comprehensive consumer survey among stratified representative samples of South African low-, middle- and high-income consumers (n = 165, n = 171 and n = 249). The paper also briefly reports on an in-store ‘observational’ research project that was conducted to develop an understanding of the communication of carcass classification to consumers through fresh red meat product labels at independent butchers and large retailers across South Africa (n = 60). Low-income consumers had very limited understanding and gave little attention to red meat classification. Even though middle-class and wealthy consumers also have a limited understanding of red meat classification, about half of these consumers check for a classification mark. Red meat classification was not mentioned by consumers as a major concern regarding red meat, but related aspects were important such as quality, fattiness, tenderness, juiciness, taste, freshness, smell and appearance. Purchase considerations for beef and mutton/lamb focussed largely on safety, appearance, price and eating quality. Labelling information observed at retail outlets gave very little attention to classification. There is a definite need for consumer education relating to the red meat classification system and for the development of an appropriate front-of-pack labelling system to communicate red meat classification.Keywords: Beef, high-income, knowledge, labelling information, lamb, low-income, middle-income, mutton, perceptions
Effects of dietary supplementation of Chinese herb medicine mixture on rumen fermentation, nutrient digestion and blood profile in goats
Authors: Wang SP , Wang WJ
Published: April 2021

Twenty adult goats, fitted with ruminal cannulae, were used to investigate the effects of dietary supplementation of Chinese herbal medicine (CHM) mixtures on rumen fermentation, nutrient digestion and blood profiles. The wethers were assigned equally to one of the two dietary treatments according to a randomized controlled trial design. One dietary treatment was the basal diet, while the other was the CHM mixture diet consisting of the basal diet and the CHM mixture. Chinese Mosla, Atractylodes rhizome, Officinal Magnolia bark, white hyacinth bean and Liriope root tuber were mixed with a weight ratio of 8:4:4:4:5 to make up the CHM mixture. This mixture was added to the basal diet at 15 g/kg feed. The dietary supplementation of the mixture increased ruminal fluid concentrations of acetate, butyrate and total volatile fatty acids, and the ruminal activities of avicelase, carboxymethyl cellulase, cellobiase and xylanase. It also improved the ruminal effective degradability of dry matter, organic matter and amylase-treated ash-free neutral detergent fibre from the forage, apparent total tract digestibility of gross energy, dry matter, organic matter, crude protein, amylase-treated ash-free neutral detergent fibre, ash-free acid detergent fibre and calcium. Whole blood pH and concentrations of actual bicarbonate, buffer excess and magnesium ion, plasma concentrations of leptin, total protein, albumin, globulin, C-reactive protein, immunoglobulin A/G/M and complement 3/4 increased. Furthermore, plasma activities of nitric oxide synthase, glutathione peroxidase and total superoxide dismutase and plasma total antioxidative capacity increased. However, plasma concentrations of adrenocorticotropic hormone, aldosterone, cortisol, glucose, urea nitrogen and lactic acid and plasma activities of alanine transaminase, creatine kinase and lactate dehydrogenase decreased. These results indicated that the dietary supplementation of the CHM mixture exerted some positive regulating effects on the nervous system, the endocrine system and the immune system of goats, thus improving the functions of immunity and antioxidation, as well as the digestion and metabolism of nutrients. However, the CHM mixture did not affect their rumen fermentation patterns.Keywords: Chinese herbal medicine, rumen environmental parameter, digestibility, blood indicator, ruminant
Modelling of digesta passage rates in grazing and browsing domestic and wild ruminant herbivores
Authors: Moyo M. , Gueguim Kana E. B. , Nsahlai I. V.
Published: April 2021

Ruminant utilization of poor-quality feeds is governed by rates of digestion and of passage through the rumen. The passage rate of feed material determines the quantity of bypass nutrients and the efficiency of synthesis of microbial protein in the rumen, making modelling of passage rate important. Artificial neural networks were used to develop models of liquid and solid passage rates. Studies that reported fractional passage rates, along with class and body mass of ruminants, were included in the dataset. Factors that affect rates of passage in all the studies were identified, which included animal and feed factors. The dataset was composed of observations of domestic and wild ruminants of variable body mass (1.5 to 1238 kg) from 74 studies and 17 ruminant species from various climatic regions. Observations were randomly divided into two data subsets: 75% for training and 25% for validation. Developed models accounted for 66 and 82% of the variation in prediction of passage rates for solid and liquid, respectively. On validation with an independent dataset, these models attained 42 and 64% of precision in predicting passage rates for solid and liquid, respectively. Liquid and solid prediction passage rate models had no linear and mean bias in prediction. This study developed better prediction models for solid and liquid passage rates for ruminants fed on a variety of diets and/or feeds from different climatic regions.Keywords: Artificial neural networks, intake, mean retention time, prediction equation, rumen
Fine-scale habitat use by humpback whales (Megaptera novaeangliae) in Zavora Bay, Mozambique
Authors: Van Driessche Charlotte D. , Nakia Cullain  , Yara Tibiriçá  , Ian O'Connor
Published: April 2021

Little is known about the humpback whales (Megaptera novaeangliae) of the East-African Coast genetic sub-unit (C1). With an estimated population size of 7000 whales, they demonstrate the resilience of the species after commercial whaling caused population numbers to decline drastically. Zavora Bay, Mozambique offers an ideal observation point of the passage of the whales during their annual migration towards the breeding ground of southern Africa and serves as an operating base to monitor this population. This study aimed at identifying the importance of Zavora Bay as part of this breeding ground and the core regions for humpback whale use within the study area. Results showed the waters off the coast of Zavora are actively used for breeding and do not merely serve as passage towards the wintering habitats. A mother-calf pair separation with a preference for shallower waters closer to shore was observed. Besides depth and distance to shore, slope also proved to have a significant influence on the distribution of adult humpback whales. Increased survey effort and more detailed investigation of the threats to humpback whales within the waters of Zavora are recommended.
New strandings of True’s beaked whale, Mesoplodon mirus, in Mozambique and their destiny as marine bushmeat
Authors: Reeve-Arnold Katie E. , Keeping Jennifer A. , Cockcroft Vic G. , Guissamulo Almeida
Published: April 2021

True’s beaked whales have a uniquely fragmented distribution of sightings recorded, mostly from stranding reports. The species is assumed to be associated with deep oceanic waters, occurring in both the northern and southern hemispheres. A hotspot for strandings in the southern hemisphere is South Africa. The third and fourth reported stranding of True’s beaked whales for Mozambique is presented, and the first for Tofo Beach, Inhambane Province. This stranding event resulted in the carcasses being butchered and the bushmeat taken for human consumption. This report develops and discusses strategies for mitigation of future risk to public health from aquatic bushmeat consumption in Mozambique.
Degrowth, political acceptability and the Green New Deal
Authors: O'Manique Claire , Rowe James K , Shaw Karena
Published: April 2021

Endless economic growth on a finite planet is impossible. This is the premise behind the degrowth movement. Despite this sound rationale, the degrowth movement has struggled to gain political acceptability. We have sought to understand this limited uptake of degrowth discourse in the English-speaking world by interviewing Canadian activists. Activists have a proximity to the political realm – both with its barriers and openings – that scholars working primarily in academic institutions sometimes lack. Our interviews reveal that class interests – particularly those of fossil fuel companies – are a substantial barrier to realizing degrowth goals. Interviewees highlighted the importance of centring class-conscious environmentalism, ‘anti-purity’ politics, and decolonization as essential parts of a degrowth agenda capable of overcoming these class interests. We conclude by unpacking how the Green New Deal – a discourse and movement that gained considerable traction after we completed our interviews – addresses the obstacles shared by our interviewees, thus making it a promising ‘non-reformist reform’ for the degrowth movement to pursue.
RELAXATION FREQUENCY SHIFT IN TRIGLYCINE SULFATE UNDER THE INFLUENCE OF SILICA NANOPARTICLES AT LOW FREQUENCIES
Authors: BICH DUNG MAI , HOAI THUONG NGUYEN
Published: April 2021

The present work is devoted to clarifying the influence of silica nanoparticles on dielectric relaxation frequencies of a classical ferroelectric – triglycine sulfate at low frequencies (102 – 107 Hz) from 20 ˚C to phase transition point for composite samples prepared at different composition weight ratios. Theresults indicated the reduction of relaxation frequency with increasing the silica content due to the intensified interaction between nanoparticles and tryglycine sulfate inclusion. The nature of this interaction was thoroughly discussed in this study.
MOTION PLANNING OF ASSISTIVE EXOSKELETON IN HUMAN’S LOCOMOTION REHABILITATION
Authors: MIEN KA DUONG
Published: April 2021

Researches on rehabilitation exoskeleton system have bee

n implementing in recent decades and have been achieving many advantages. However, most of reseaches have focused on more simplified systems such as rehabilitation exoskeleton for one or two joints or for one paralysed leg with the purpose of recovering human’s locomotion pattern. Researches on rehabilitation exoskeleton using for whole two paralysed legs are limited because of the complexity of balance issue for a combined human – exoskeleton system. Therefore, crutches are used to prevent the human from falling during human’s walking in recent researches. In order to abandon the crutches and help to recover human’s nomal walking pattern, the balance problem of combined human-exoskeleton system must be considered in control algorithm. In this paper, we build a motion path for a combined human-exoskeleton ensuring that the combined human-exoskeleton system can move in a balanced area. Our proposed paths are validated in the control algorithm for the HUALEX exoskeleton system in University of Electronic Science and Technology of China (UESTC).
VIRTUAL MODELING AND CONTROLLING OF AN ELECTRO-HYDRAULIC ACTUATOR
Authors: DIEP B.T. , LE T. D.
Published: April 2021

Instead of experiment, this paper builds a virtual model of the electro-hydraulic actuator (EHA) thought an Amesim software to evaluate the control response. The main feature of the EHA is to use the closed-loop circuit to reduce the size and oil volume as well as to eliminate the pressure loss caused by the orifice area of the valves. Firstly, the mathematical model of the EHA is established. Secondly, based on this model, an adaptive fuzzy sliding mode controller (AFSMC) is then designed to control the accurate position of the piston. In this control strategy, the system parameters are considered unknown, and they are lumped into two unknown time varying functions. An approximate technique is used to express one of the unknown functions as a finite combination of the basis function. In addition, a fuzzy logic inference mechanism is utilized for realizing a hitting control law to remove completely the chattering problem from the conventional sliding mode control. Then, the Lyapunov stability theorem is utilized to find the adaptive laws for updating the coefficients in the approximate series and turning the fuzzy parameter.
Power Consumption Improvements in AES Decryption Based on Null Convention Logic
Authors: Thanh Toi Le , Tri Lac Truong , Trang Hoang
Published: April 2021

In this paper, we propose a new asynchronous method based on a Null Convention Logic (NCL) to improve power consumption for low power integrated circuits. The reason is because the NCL based designs do not use a clock, it eliminates the problems related to the clock and its power consumption reduces significantly. To show the advantages of the selected method, we propose two design models using the synchronous circuit design method, and the NCL based asynchronous circuit design method. To test these two design models conveniently, we also propose an extra automatic test model. In this study, the AES decryption is used as an example to illustrate both methods. The two above proposed AES decryption models are simulated and synthesized at the various corners by VCS and Design Compiler tool using TSMC standard cell libraries in 65nm technology. The synthesis results of the two above mentioned models indicated that the power consumption of the NCL based asynchronous circuit model is 3 times lower than that of the synchronous circuit model, and significantly improves (from 94% to 98%) compared with the results of the other authors. The processing speed of the NCL based asynchronous circuit paradigm is able to achieve a maximum speed.
STUDI ANALISIS KEMAMPUAN PENGELOLAAN KECERDASAN INTERPERSONAL DENGAN PRESTASI MAHASISWA PERGURUAN TINGGI KEAGAMAAN NEGERI DI KALIMANTAN BARAT
Authors: Ahen Lukas
Published: April 2021

Penelitan ini dimaksudkan untuk mengetahui kemampuan mahasiswa semester 7 IAIN  dan STAKatN Pontianak dalam mengelola kemampuan kecerdasan interpersonal, dan hubungan antara kemampuan mengelola kecerdasan interpersonal terhadap prestasi akademik. Bentuk penelitian ini merupakan penelitian deskriptif kualitatif, dengan metode wawancara bebas terpimpin sebagai pengumpulan data. Hasil penelitian menunjukkan pertama, kemampuan mengelola kecerdasan interpersonal mahasiswa semester 7 masih rendah dalam upaya mencapai prestasi belajar akademik melalui keaktifannya berorganisasi di kampus. Kedua, terdapat hubungan yang signifikan negatif antara kemampuan mengelola kecerdasan interpersonal dengan prestasi akademik. Dalam hal ini menunjukkan rendahnya kemampuan mengelola kecerdasan interpersonal, diikuti pula dengan rendahnya prestasi akademik. Kata Kunci: Kecerdasan Interpersonal, Prestasi Mahasiswa
PENERAPAN MODEL PERMAINAN CIRCUIT TERHADAP PEMBELAJARAN LOMPAT JAUH GAYA JONGKOK PADA SI SWA KELAS VII SMP NEGERI 2 ELLA HILIR
Authors: Jeki Jeki , Suyatmin Suyatmin , Susilawati Indria
Published: April 2021

Abstrack: This study aims to determine the effect of the circuit activity model of the game on squat style long jump learning in grade VII (seven) junior high school students Ella Hilir.This type of research is quasi-experimental with one group pretest posttest design. The method used in this research is the circuit activity model game method. The results of the pretest and posttest of t table have a significance value of 0.00 or smaller than 0.05 which means that there are differences in the learning of the basic technique of long jump squat style on students between before and after treatment. In the table one sample test looks average for before getting treatment = 57.91 and after getting treatment = 82.08. This means that the average value before receiving treatment is lower than after receiving treatment. With an inrease in the average value of = 24,17.Based on the results of the analysis shows that "There is a significant influence of the method of the model of circuit activity games on squat style long jump learning in Ella Hilir 2 Public Middle School.Keywords: Model Method of Activity Circuit Games, Learning outcomes of the basic techniques of long jump squat style.Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh model permainan aktivtas circuit terhadap pembelajaran lompat jauh gaya jongkok pada siswa kelas VII (tujuh) SMP Negeri 2 Ella Hilir. Jenis penelitian ini adalah eksperimen semu dengan rancangan one group pretest posttest design. Metode yang di gunakan dalam penelitian ini adalah metode model permainan aktivitas circuit. Hasil pretest dan posttest dari t tabel terdapat nilai signifikasinya sebesar 0,00 atau lebih kecil dari 0,05 artinya menunjukan bahwa ada perbedaan pada pembelajaran teknik dasar lompat jauh gaya jongkok pada siswa antara sebelum dan sesudah mendapat perlakuan. Pada tabel one sample test terlihat nilai rata-rata untuk sebelum mendapat perlakuan = 57,91 dan sesudah mendapat perlakuan = 82,08. Artinya nilai rata-rata sebelum mendapat perlakuan lebih rendah dari sesudah mendapat perlakuan. Dengan peningkatan nilai rata-ratanya yaitu sebesar = 24, 17.Berdasarkan hasil analisis menunjukkan bahwa Terdapat pengaruh yang signifikan dari metode model permainan aktivitas circuit terhadap pembelajaran lompat jauh gaya jongkok di sekolah SMP Negeri 2 Ella Hilir.Kata kunci: Metode Model Permainan Aktivitas Circuit, Hasil pembelajaran teknik dasar lompat jauh gaya jongkok.
HUBUNGAN POWER OTOT TUNGKAI DAN PANJANG TUNGKAI TERHADAP KECEPATAN LARI 100 METER
Authors: Hendi Hendi , Triansyah Andika , Bafadal Muhamad Fachrurrozi
Published: April 2021

Abstract: This study aims to determine the relationship between leg muscle power and leg length to the 100 meter running speed of the extracurricular members of SMAN 1 Teluk Batang. The method used is correlational with quantitative descriptive research. The data source of this research is students who take extracurricular activities with running speed of 100 meters and the data is to do a series of tests and measurements then the assessment is taken from the best score. The results showed that there was a relationship between leg muscle power and the results of running speed 100 meters r count r table (-0.7 0.514), there was a relationship between leg length and the result of running speed 100 r count r table (-0.82 0.514), there was a power relationship. leg muscles and leg length to running speed 100 meters rcount rtable (4.2 0.15). So, leg muscle power and leg length to 100 meter running speed have a significant relationship to the results of 100 meters running speed.Keywords: Power of leg muscles, leg length, running speed of 100 meters.Abstrak: Penelitian ini bertujuan untuk mengetahui hubungan antara kekuatan otot tungkai dan panjang tungkai terhadap kecepatan lari 100 meter pada peserta ekstrakurikuler SMAN 1 Teluk Batang. Metode yang digunakan adalah korelasional dengan penelitian deskriptif kuantitatif. Sumber data dalam penelitian ini adalah siswa yang mengikuti kegiatan ekstrakurikuler dengan kecepatan lari 100 meter dan datanya dilakukan serangkaian tes dan pengukuran kemudian diambil penilaiannya dari skor terbaik. Hasil penelitian menunjukkan bahwa ada hubungan antara kekuatan otot tungkai dengan hasil kecepatan lari 100 meter r hitung r tabel (-0,7 0,514), ada hubungan antara panjang tungkai dengan hasil kecepatan lari 100 r hitung r tabel (-0,82 0,514), ada hubungan kekuasaan. Otot tungkai dan panjang tungkai untuk kecepatan lari 100 meter rhitung rtabel (4.2 0.15). Jadi, kekuatan otot tungkai dan panjang tungkai terhadap kecepatan lari 100 meter memiliki hubungan yang signifikan dengan hasil kecepatan lari 100 meter.Kata kunci: Kekuatan otot tungkai, panjang tungkai, kecepatan lari 100 meter.
UPAYA MENINGKATKAN HASIL BELAJAR GULING DEPAN DALAM SENAM LANTAI DENGAN METODE BERMAIN PADA SISWA KELAS V SDN 1 KANCONG TANAH PINOH BARAT
Authors: Sahrol Sahrol , Akbar Khairil , Atmaja Nur Moh Kusuma
Published: April 2021

Abstract: This study aims to be a classroom action research (PTK). This study uses 2 cycles, where each cycle consists of: 1) planning: 2) implementation: 3) observation: 4) reflection. The research carried out included 3 domains, namely the cognitive, affective, and psychomotor domains. In addition, observations were made of the learning process during the research activities and made a questionnaire in the form of a questionnaire of interest and learning motivation, to determine the extent of student satisfaction and interest in participating in learning. by using the game method. It can be concluded that the front roll floor gymnastics learning through the three-post game has a positive effect, namely it can improve learning outcomes and student interest and motivation as indicated by the average student's answer who strongly agrees 100% on the student interest questionnaire agree 100% on the results of the student motivation questionnaireKeywords: Learning Outcomes, Front Roll, Playing MethodAbstrak: Penelitian ini bertujuan adalah penelitian tindakan kelas (PTK). Penelitian ini menggunakan 2 siklus, dimana masing-masing siklus terdiri atas: 1) perencanaan: 2) pelaksanaan: 3) pengamatan: 4) refleksi. Penelitian yang dilakukan mencakup 3 ranah yaitu ranah kognitif, ranah afektif, dan ranah psikomotorik.selain itu dilakukan pengamatan terhadap proses pembelajaran selama kegiatan penelitian berlangsung dan membuat angket kuisioner berupa angket minat dan motivasi pembelajaran, untuk mengetahui sejauh mana kepuasan dan ketertarikan siswa dalam mengikuti pembelajaran dengan menggunakan metode permainan. Dapat disimpulkan bahwa pembelajaran senam lantai guling depan melalui permainan tiga pos mempunyai pengaruh positif, yaitu dapat meningkatkan hasil belajar dan minat serta motivasi belajar siswa yang ditunjukan dengan rata-rata jawaban siswa yang menyatakan sangat setuju 100% pada angket minat siswa, dan siswa menjawab sangat setuju 100% pada hasil angket motivasi siswaKata Kunci: Hasil Belajar, Guling Depan, Metode Bermain
Execução de projetos de extensão em período de pandemia: autoavaliação e estratégias
Authors: Guedes Aguiar Bárbara , Vieira Tavares Luiza Loren , Pires Maciel Guirra Alesson , Tavares Vieira Teixeira Flaviana
Published: April 2021

Diante dos desafios refletidos na implantação, manutenção e sustentabilidade dos projetos de extensão ofertados pelo Programa de Educação Tutorial PET-Estratégias para Diminuir a Retenção e Evasão na Universidade Federal dos Vales do Jequitinhonha e Mucuri, torna-se relevante demonstrar, na percepção dos Petianos e Coordenadores, quais são as estratégias adotadas para viabilizar a execução dessas atividades. A coleta de dados foi realizada por meio da aplicação de um questionário online utilizando a plataforma Google Forms. Para análise dos dados qualiquantitativos utilizou-se cálculos percentuais a partir da elaboração de tabelas e gráficos. A pesquisa possibilitou o registro de opiniões sobre as fragilidades em relação ao desenvolvimento remoto dos projetos. Os resultados demonstram que não foi possível prosseguir com a maioria dos projetos de extensão e que o advento da pandemia se tornou um fator limitante para execução das atividades, além da ausência de recursos tecnológicos e dificuldades relatadas pelos voluntários no acesso à internet. Ainda assim, o PET se empenhou em desenvolver estratégias para driblar tais limitações, através da produção de vídeos disponibilizados nas mídias sociais, assim como a inserção dos estudantes em congressos brasileiros nacionais, estimulando a troca de experiências, a disseminação do conhecimento e a divulgação científica.
A Extensão Universitária e sua relação com a concepção científica do trabalho comunitário na Escola Superior Pedagógica do Bié - Angola
Authors: Cuionja António Paulo
Published: April 2021

O presente relato de experiência é parte de uma investigação sobre a Extensão Universitária para implementação na Escola Superior Pedagógica do Bié em Angola através de sua relação com a concepção científica do trabalho comunitário como resposta às exigências do modelo do profissional e das transformações do ensino superior angolano. A comunidade do bairro Catemo na cidade do Cuito província do Bié em Angola precisa aperfeiçoar um processo de orientação com enfoque ”meio-ambiente”, com objetivo de desenvolver uma cultura ambiental e em cada um de seus membros, onde as somas individuais em situações cotidianas como o bom uso da água, o depósito de lixo (resíduos sólidos e líquidos) em lugares adequados, a reciclagem, o tratamento de resíduos por cada indivíduo da comunidade e infinidade de ações. A pesquisa contribui para proteger e tornar sustentável a vida, fazendo-a agradável para todos os habitantes na convivência e a necessidade de sua transformação, encaminhado a uma melhor qualidade de vida da população. Para este fim se realizou um estudo exploratório sobre a mesma comunidade suburbana.
ANTIBACTERIAL PHOTODYNAMIC THERAPEUTIC STUDIES OF METALLATED PORPHYRIN AGAINST CHRONIC WOUND COLONISING BACTERIAL ISOLATES
Authors: Daramola O. B , Olajide A. A , Torimiro N , George R. C
Published: April 2021

Wound infections have become life threatening as a result of treatment failures caused by multi-drug resistant pathogens. The search for newer compounds potent against antibiotic resistant bacteria associated with wounds is crucial. Hence this study investigated the application of antibacterial photodynamic therapy using meso tetra-(4-phenyl) porphyrin (TPP), metallated with zinc, tin and silver (ZnTPP, SnTPP and AgTPP), meso tetra-(4-sulphonatephenyl) porphyrin (TPPS) and the corresponding metallo meso tetra-(4-sulphonatephenyl) porphyrin (MTPPS) as photosensitizers. The in-vitro toxicity and photo-toxicity properties on four chronic wound colonizing multi-drug resistant bacterial strains: Staphylococcus aureus, Klebsiella sp., Proteus sp., and Escherichia coli were assessed using agar well diffusion method. Photo-toxicity of the compounds was investigated using 100 Watt tungsten lamp. Inhibitory activity of porphyrins tested against these bacterial strains showed Staphylococcus aureus to have both lowest (11±0.0 mm) and highest (33±1.1 mm) susceptibility to SnTPPS and ZnTPPS respectively. The sequence of data also showed appreciable improvement in the antimicrobial activities of five metalloporphyrins (SnTPP, AgTPP, ZnTPPS, SnTPPS and AgTPPS) exposed to light rays than when tested against bacterial strains in dark condition. ZnTPPS exhibited the best activity with improved photo-toxic activities against all bacterial strains (Staphylococcus aureus 33±1.1 mm, Klebsiella sp. 32±0.7 mm, Proteus sp. 28±0.7 mm and Escherichia coli 30±1.4 mm) examined in this study.
A Digital Immigrant Venture into Teaching Online: An Autoethnographic Account of a Classroom Teacher Transformed
Authors: Lewis Karin
Published: April 2021

This paper presents an autoethnographic account of a classroom teacher’s experience transitioning to teaching online within the shifting culture of academe in the 21st Century. After decades as a classroom teacher, the author engages in autoethnography to reflexively analyze her challenging transition to teaching online. The author examines her perspectives, beliefs, thought process, learning, and development. Findings regarding her new way of teaching, thinking, and living as an online instructor may provide insights for others in academe.
Producing and (Re) Producing? Untangling Multiple Labour Roles of Female Estate and Apparel Workers of Sri Lanka
Authors: Seneviratne Prajna
Published: April 2021

Inspired by the Marxist feminist thinking of women’s “productive” and “reproductive” labour in this paper I attempt to unbundle the multiply interacting labour roles of female estate and apparel workers as they work within the third world (postcolonial) context of Sri Lanka. Drawing on the belief that “knowledge” of women’s lives should be grounded in and informed by the material politics of everyday life, especially the daily life struggles for survival of women themselves, I employ ethnography from a feminist perspective as the prime methodological approach of this study. As such my paper unfolds as a “storytelling ethnography” where I narrate the daily life struggles of these female workers as they strive to balance the often conflicting demands on their labour as waged (productive) workers in the estate/factory and unwaged (reproductive) workers at home. Exploring the daily lives of female estate and apparel workers through the duel analytical lenses of Marxist feminism, I see these two groups of women, working under two different work regimes as negotiating the multiple interactions of their productive and reproductive labour in diverse ways; closely interwoven with each other at times and completely separated from each other at others.
Barriers to Pregnancy Spacing in Women Living with HIV: A Series of Informational Interviews
Authors: Scott Rachel , Praditpan Piyapa , Tanjutco Patricia , Laidlaw Elizabeth , Zopf Regina , Schladen Manon
Published: April 2021

For reproductive-age women living with HIV, birth spacing allows for optimization of maternal health and viral suppression to prevent mother-to-child transmission of HIV. We conducted semi-structured informational interviews to explore use of contraception for birth spacing. Interviews were transcribed and analyzed. Audio files were reviewed to capture non-explicit data. We interviewed 18 multiparous HIV positive women. All described experiences with at least one contraceptive method. Six themes emerged: Burden of contraception, Failure of birth control, Impact of youth and lack of life experience, Community beliefs about birth control, Lack of partner cooperation, and Altruism. Women viewed birth spacing favorably. Young age at first delivery, contraceptive side effects, non-adherence to short-acting methods, lack of partner cooperation, and prior contraceptive failure were identified as barriers to ideal birth spacing. Additional outreach is needed in women living with HIV to overcome barriers to planned pregnancy and birth spacing.
Women’s Lived Experience of Pregnancy and Child Birth: Narratives from Pakistan
Authors: Ali Rabia , Habiba Ume , Ullah Hazir
Published: April 2021

In Pakistan there are unique socio-cultural factors that contribute to women’s experiences of pregnancy and childbirth. This study explores Pakistani women’s experiences of pregnancy and childbirth an area that remains under researched in the country. Qualitative research was employed for data collection by using an un-structured interview guide. The informants included twelve women who had recently been through the childbirth process for the first and second time. The collected data reveals that women were unaware of the use of multi vitamins during pregnancy. They delayed physical check-ups with a gynaecologist. Women encountered challenges at work during pregnancy and encountered work family conflict after childbirth. Support from intimate relations including husbands and in-laws were reported by the respondents. Attitude of colleagues at work was not always positive during pregnancy. The working women reported being overburdened at work. It is suggested that women friendly policies are required for working women giving birth. Facilities including rest rooms, medical centres need to be provided to the women at work. Women need to be educated about the importance of health care during pregnancy.