bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis influence of Dmax on fracture mechanics parameters of concrete made of limestone aggregate at three point bending.
Authors: Golewski Grzegorz
Published: November 2020

The analysis of concrete behaviour taking into account fracture mechanics method makes it possible to describe the origin and development of the damages occurring in it, which is impossible in case of using global strength characteristics of composite. In the work the experiment results were presented regarding the determination of the influence of grain-size distribution of coarse aggregate on the crack mechanics parameters of limestone concretes as defined according to the I mode of crack propagation at bending. Two types of optimal composition of grains were used with Dmax up to 8 and up to 16 mm. During the experiments the basic parameters of fracture mechanics were determined: critical value of stress intensity factors: : and KIc, fracture energy GF, critical crack tip opening displacement CTODc and unit work of failure JIc. During the fracture toughness tests the method of loading samples based on RILEM recommendations was used. For basic experiments six beams with one initial crack were used. In the course of the experiments carried out, two dependencies were recorded for each sample: load – displacement of crack outlet opening and load - displacement of the point of applied force. In the course of the tests carried out it was found out that the higher fracture toughness was characteristic of concretes with the grain - size distribution up to 16 mm. The results presented in the work can be used in designing concretes in order to obtain materials characterized by the minimum number of initial defects which, thanks to increased fracture toughness, can increase to the reliability of construction work.
Building compartment surface layer with specific properties of radiation absorption and transmission.
Authors: Grudzińska Magdalena
Published: November 2020

The thesis deals with building compartment surface layer, consisting of two components: honeycomb transparent insulation and transparent plaster made of glass beads. The layer enables passive solar gains in a building. The aim of the thesis is as follows: (1) Preparation of mathematical model of solar transmission through the surface layer; (2) Setting of basic optical properties of the layer components, necessary for calculating solar gains at the absorber; (3) Choice of optimal properties of the surface components, allowing maximum solar gains in winter and protecting from overheating in summer. The thesis comprises of: introduction, basic equations and definitions necessary in the work, mathematical model of solar transmission through the surface layer, experimental research on basic optical properties of the layer components, choice of optimal properties of the surface components and conclusions.
Durability of mineral-cement-emulsion mixtures bases (MCEM).
Authors: Kukiełka Jerzy
Published: November 2020

Cold recycling technology with mineral-cement-emulsion mixtures (MCEM) consists of the milling of worn road asphalt layers and shuffle got crumbled material, called the RAP, with new broken aggregate, cement and asphalt emulsion in stationary devices or by realization of all technological actions on the spot (“in situ”) using the recycler. The aim of the work was the settlement of factors having the influence on durability of bases made of MCEM which were realized by detailed aims such as: the description of structure of MCEM, the assessment of influence of temperature on strength and deformability of samples made of MCEM, the settlement of rheological properties by combined stiffness modulus and loss angle, the assessment of fatigue durability the of samples of the MMCE, the assessment of resistance for low temperature cracking (the TSRST), the analysis and interpretation of surveys in fieldworks (the FWD, the Benkelman’s beam). The main issue of investigations is the application to the dimensioning of pavement construction with base made of MCEM.
Mechanical characteristics of Asphalt-Cement Concrete foundations (ACC).
Authors: Bajak Marzena
Published: November 2020

Asphalt Cement Concrete (ACC) is a new material. On the basis of Kuhn’s paradigm, conventional methods which are proper for similar road pavement materials were applied for studying the ACC. ACC is obtained from cold mixing technology such ingredients as cement-sand mortar or cement-mineral aggregate mortar, or cement-sand-mineral aggregate mortar with recycled Asphalt Concrete (AC) mixture or with recycled Mastic Asphalt (MA) mixture. Quick setting cement (CEM I 52,5 NA) is used in all mentioned cases. Novelty of the presented material is due to existence of two internal bounds - flexibility and rigidity. Such ACC parameters as stiffness, deformability and strength in general depend on type and characteristics of cementitions grout which coats applied recycled asphalt materials and fills mixture’s air voids. ACC layer stability may be predicted using viscoelastic model parameters of constitutive relations, including Burgers model, under steady and slow loadings, finally expressed by exponential formulae. This is the research study. Its basic part consists of laboratory and field testing and obtained tests results analysis. Further, road pavements were designed with subbase of ACC with improved performance comparing to typical materials.
The interference galloping of two circular cylinders with equal diameters.
Authors: Błazik-Borowa Ewa
Published: November 2020

The paper deals with numerical analyses of interference galloping of two elasticcaly supported circular cylinders of equal diameters. The basis of the analyses is a quasi-steady model of this phenomenon. The model assumes that both cylinders participate in the process of interference galloping and they have two degrees of freedom. The movement of the cylinders is described as a set of four nonlinear differential equations. On the basis of numerical solutions of these equations the author evaluate the correctness of this quasi-steady model. Then they estimate the dependence of a critical reduced velocity on the Scruton number, turbulence intensity and arrangements of the cylinders.
Comparison of determination methods of vibration’s damping coefficients for complex structures
Authors: Flaga Andrzej , Szulej Jacek , Wielgos Piotr
Published: November 2020

The purpose of this paper is to present methods of vibrations damping coefficient determination. The methods, such as collocation method, two energetic methods and half-power bandwidth method concern composite structures. The verification of methods has been taken into account in this work. Two real compound models and two numerical models have been created. Time series of vibrations of these models have been measured and calculated. The comparison of four methods has been made on the basis of obtained results.
Solution to excessive vibration of floors in a steel structured industrial building
Authors: Szmygin Bolesław , Podgórski Jerzy , Bęc Jarosław , Wielgos Piotr , Nowicki Tomasz
Published: November 2020

This paper deals with the problem of vibration that occurs in many industrial buildings. It covers the complete procedure of handling such tasks. Two buildings in a “Lubelski Wegiel S.A.” coal mine were examined in 2003 – 2005. Some years after building vibration of floors appeared (Figs 2-3). It was caused probably by modification in the building structures or improper maintenance of machines. Measurements and numerical simulations (Figs 4-5 and Tab. 1) showed that resonance appeared. It was stated that main elements of the structure were not in danger and vibration concern the floors only. Necessary modifications of the structures were designed (Figs 6-7). Testing measurements after bringing them into effect were conducted (Figs 8-11).
Dimensioning of reinforced concrete multi – flue chimneys
Authors: Słowik Marta , Dobrowolska Małgorzata , Borzęcki Krzysztof
Published: November 2020

In the paper there are presented the basic principles of dimensioning of reinforced concrete multi-flue industrial chimneys. The calculation problems appear when the cross section is more complicated than simple annular one, for which there are rules in the code. Different concepts of multi-flue chimneys, especially three-flue and four-flue chimneys, are described and the examples of industrial chimneys built in Poland are given as well.
Evolution of the landscape, historical planning and elements of Odessa
Authors: Yeksareva Nadiya , Yeksarev Vladimir
Published: November 2020

Evolution of the landscape, historical planning and elements of Odessa
The simple method of dynamic visco-elastic analysis of road structure. on rheological foundation
Authors: Karaś Sławomir , Sawecka Magdalena
Published: November 2020

In contrast to computationally advanced methods of road pavement dynamic analysis, the one-dimensional, simple method is derived on the basis of visco-elastic simple beam lying on generalized Winkler visco-elastic foundation. By virtue of least square method the visco-elastic constants could be estimated with technically admissible accuracy. The introduced method is useful enough to predict any pavement deformation process in the range of linear visco-elasticity.
The history of renovation design of the front facade of the Main Post Office Building in Lublin
Authors: Pytlarz Elżbieta
Published: November 2020

In this article it is presented a ranovation process of the Post Office building in Lublin held in 2001 – 2003. The location of thic edifice in the main street and the same time of the frontage of the central square raises the status of this building particularly that its facade is the background of numerous official celebrations and meetings of the authorities and citizens of Lublin. The author of this article describes designing solutions and also the cooperation process of architect, client, conservator and performer. The photographs showing the facade of the Main Post Office building in Lublin before its restauration and the effect after it enable a reader to compare the facade of the building from the past to its contemporary state.
Survey of applications of discrete vortex method in civil engineering.
Authors: Nowicki Tomasz
Published: November 2020

This paper includes an introduction to Discrete Vortex Method (DVM) and its comparison with other methods of computer fluid dynamics. In its second part it focuses on the most important applications of DVM from the civil engineering point of view. Some examples known form literature are presented theoretical as well as experimental.
The presbytery near collegiate church in Klimontów as an example of adaptation of relic with preservation of country noble residence type.
Authors: Klimek Beata
Published: November 2020

Given in XVI century farm treaties dealt with country building in the context of technical questions (the choice of place under building, building materials, foundations) as well as the principle of planning out the noble seat. The presbytery introduced in the article links to historical country noble residence. Executed redecorating works adapted the presbytery to modern needs. The proposed solution of rooms arrangement is the reconstruction of its state in the end of XVII century.
Flat ceilings in historic buildings.
Authors: Nicer Tomasz
Published: November 2020

Every building type action on a historic object should include recognition of character, age and the technology of constructional solutions. The conservator’s preservation can concern, and in some cases should concern the structural solutions. Such analysis are particularly difficult in the case of flat ceilings. Possibilities of historic as well as contemporary solutions of the structure, their origins, similarity in assumptions and materials and the ignorance of the historical technologies can lead to wrong conclusions. Conclusions can be wrong both in relation to the originality and the authenticity of solutions, and can lead to undesirable workings from the conservatory point of the view in the consequence.
THz wave imaging through layered dielectric using correlating synthesis method
Authors: Ishizaki Naoya , Toh Ryo , Suizu Koji
Published: November 2020

We have introduced a correlating synthesis (CS) method for high-resolution terahertz (THz) imaging. The efficiency of the CS method was verified by imaging experiment of metal cylinders using a pulse reflection mode terahertz time-domain-spectrometry system. In this paper, we study the influence of layered dielectric in the propagation path of THz wave. A method of propagation time correction by ray tracing in the dielectric layer is proposed. The efficiency on decreasing the distortion and artifact images is verified by imaging experiment with a dielectric substrate board. Moreover, it is noticed that the appropriate correlation interval used in CS processing depends on the shape of the target. We propose a method of synthesizing the images derived from a series of different correlation intervals, which ensures the robustness of parameter independent with the target. The efficiency of the proposed method is verified by comparison imaging experiments using samples of different targets on a substrate board.
Low-temperature Hf-silicate prepared with various thermal budgets
Authors: Lin Chiung-Wei , Huang Jin-Wei , Ho Jia-Chang
Published: November 2020

In this study, the influence of thermal budget on preparing hafnium silicate (HfSiO) and metal–insulator–semiconductor (MIS) structures with tetragonal hafnium oxide (HfO2) films was investigated. Amorphous silicon (a-Si) was used as a sacrificial layer for HfSiO formation. Rapid thermal annealing (RTA) could efficiently drive the oxidation of a-Si with HfO2. The RTA-produced HfSiO film thicker than that produced through furnace annealing could suppress gate leakage in MIS devices, and aid in maintaining a high dielectric constant of the gate insulator. The combination of sacrificial a-Si film use and RTA application resulted in a HfSiO/HfO2 structure (named as hybrid HfO2), which demonstrated a high dielectric constant and strength (29.5 and 21.2 MV cm−1, respectively). MIS devices integrated with this hybrid HfO2 achieved a hysteresis value of only 0.11 V on a flat-band voltage measured at a 50 mV s−1 sweep rate with an applied voltage between −5 and 5 V.
Ultrafast carrier dynamics in double perovskite Cs2AgBiBr6 nanocrystals
Authors: Wang Quan , Li Yongfeng , Wang Wenyan , Sui Ning , Chi Xiaochun , Pan Lingyun , Zhang Hanzhuang , Kang Zhihui , Zhou Qiang , Li Li , Wang Yinghui
Published: November 2020

The photon flux-dependent transient absorption spectroscopy is employed to investigate the carrier dynamics of Cs2AgBiBr6 nanocrystals (NCs), exhibiting that the hot carrier cooling, the self-trapping process, the surface defect capture and the carrier recombination together participate in the carrier relaxation process after photoexcitation. The evolution of their lifetimes as a function of 〈N〉 (average photon number per nanocrystal) all show two stages. Moreover, the role of HC in the subsequent carrier dynamics is also discussed. These results can help explain the carrier dynamics in the double perovskite NCs for designing and optimizing the perovskite-based optoelectronic devices with high performance.
Villanycsengő elektromechanikai modellje
Authors: Szabó Tamás , Rónai László
Published: November 2020

A cikk egy villanycsengő elektromechanikai modellezésével foglalkozik. A rendszer aktuátora egy elektromágnes, amely egy rugalmas kalapács szerkezetet gerjeszt. A szerkezet működését az áramerősség és elmozdulás változókkal három egyenletrendszer írja le. Az első elektromechanikai jellegű, a második egy, a kalapács szabad mozgását írja le, a harmadik a kalapács csengővel való rugalmas ütközését modellezi. Az egyenletek alapján szimulációs program készült Scilab rendszer alatt, amely a kalapács elmozdulását és az áramerősséget ábrákkal szemlélteti.
Igényvezérelt raktározási rendszerek optimális anyagmozgatási stratégiájának kiválasztására szolgáló rendszer működési koncepciójának költségmodellje
Authors: Dobos Péter , Illés Béla , Tamás Péter
Published: November 2020

Az ipari szereplők, vállatok számára egyre nagyobb kockázatot jelent a piac hektikussága és a végfelhasználók keresletének nehéz és csak rövidtávú tervezhetősége. A legtöbb ipari szereplő a fenntarthatóság érdekében alkalmazkodik az új piaci környezethez és ezen alkalmazkodás a rendelkezésre álló pénzügyi keretek átcsoportosításaival, kiadások jelentés csökkentésével, megszorításokkal, és végső soron átszervezésekkel jár. Jelentős segítség a vállaltok számára minden olyan módszer vagy eljárás, ami segít a rendelkezésre álló adatok alapján a várható költségek meghatározásában és tervezésében. A kidolgozott eljárás alkalmazható termelő vállatok számára a költségre optimalizált raktározási stratégia kiválasztására, figyelembe véve az üzleti tervben szereplő lekötött tőke értékét és beruházási lehetőségeit. Tervezhetőséget és kiszámíthatóságot biztosítva a felmerülő költségek területén.
Computational Models for Diagnosing Tuberculosis: A Systematic Review
Authors: Ogunbodede Oluwatosin , Akinnuwesi Boluwaji , Aribisala Benjamin
Published: November 2020

Introduction: Tuberculosis (TB) is an infectious disease caused by the bacterium Mycobacterium tuberculosis. It kills about 1.5 million people per year and about 95% of its victims are from Africa. A major problem of TB is the difficulty in its diagnosis due to the fact that in most cases, it is either asymptomatic or latent. This difficulty in diagnosis has motivated the development of various algorithms for TB diagnosis most of which have poor diagnosis power. Aim: This research focused on systematic review and analysis of computational models for diagnosis of TB with the view to identifying their strengths and weaknesses. The overall target is to develop a standard and robust computational model with improved diagnostic power. Method: Selection was from peer-reviewed articles on Google scholar assessing strictly computational TB diagnostic models. Search terms include: Diagnosis, Tuberculosis, Computational, Mathematics, Bayes, Soft computing, Fuzzy logic, Neural Network. Exclusions were made based on some criteria. Results: Initial search returned 303 of which only 42 studies met the inclusion criteria. 19 were on neural network or neuro-fuzzy, 2 studies were on Expert System. 7 analysed fuzzy logic/hybrids and Bayesian/data mining appeared in 7 reports. 5 studies were on Genetic Algorithm and its hybridized forms while 2 papers were on other methods. Conclusion: Results suggest that accuracy and speed need to be improved due to weaknesses in existing models. Hybridization of Genetic algorithm, Neuro-fuzzy and Bayesian techniques will most likely guarantee improved diagnosis, however, further quantitative analysis is required to confirm this.
Degradation of crude oil (Escravos light) by Pseudomonas strains isolated from poultry droppings and cow dung
Authors: Obayori Oluwafemi
Published: November 2020

Poultry manure and cow dung have been established as potential material for the bioremediation of petroleum polluted sites, with emphasis on nutrient addition. Our aim was to isolate from poultry droppings and cow dung bacteria with ability to degrade petroleum hydrocarbons. Bacteria were isolated from poultry droppings and cow dung by continuous enrichment and vapor transfer techniques. Petroleum utilization by each isolate was confirmed in carbon free medium containing Escravos crude oil (1%). The two best isolates were selected for further study. Isolates were identified by Analytical Profile Index (API). Antibiotic sensitivity was determined by multidisc. Growth was assayed in broth culture by plate count. Residual oil was determined by Gas Chromatography equipped with Flame Ionisation detector (GC-FID). The isolates were putatively identified as Pseudomonas putida (MP2) and Pseudomonas sp. (MC4). Both isolates were susceptible to ciprofloxacin and chloramphenicol and tarivid. They resisted amoxicillin and gentamycin, augmentin, sparfloxacin and septrin. The growth rates were 0.17 and 0.23/day for strains MP2 and MC4 respectively, while the organisms degraded 88.39% and 89.06 % of crude oil respectively in 20 days. Aliphathic hydrocarbons in the range C11 to C22 were mostly reduced to less than 20%, while C22 – C26 disappeared completely within the same period in both cases. Bacteria capable of extensive degradation of Escravos crude oil were isolated from poultry droppings and cow dung. Such isolates could be veritable candidates for bioaugmentation of hydrocarbon polluted environmental compartments.
ANALYSES OF TOTAL ELECTRON CONTENT VARIATIONS OVER NORTHERN AND SOUTHERN NIGERIA
Authors: Ogwala Aghogho
Published: November 2020

Total electron content (TEC) is a parameter of the ionosphere that produces great effect on radio signals. We present the diurnal and seasonal variations of vertical total electron content (vTEC) during the ascending phase of solar cycle 24. A moderate solar activity year (2011) with sunspot number, Rz = 55.7 is used in this study. Total electron content (TEC) deduced from the dual frequency GPS measurements obtained at two ground stations namely: ABUZ (Zaria) with longitude 7.39oE in the north and UNEC (Enugu) with longitude 7.30oE in the south are considered. Both stations are located within the same longitude and has a latitudinal difference of 4.74o in the Nigerian equatorial ionosphere (NEI). Comparison of diurnal and seasonal variations of TEC is carried out for both stations. The diurnal variation of TEC shows a steep increase starting from sunrise, reaching daytime maximum between 13 – 15 LT at UNEC and 14 – 16 LT at ABUZ, then falls to a minimum at sunset. Dawn depression occurred at the same local time of 04 LT at both stations. On a seasonal scale, Pre- and post-midnight values were highest during the Equinoxes, followed by December solstice and least in June Solstice season at ABUZ. Pre- and post-midnight values were also higher during the Equinoxes than the Solstice season at UNEC, although they are about the same range. Also, TEC values are observed to be slightly higher for all hours and seasons at Enugu in the south than Zaria in the north except during March equinox at Zaria where TEC values were higher during the daytime. This implies that there could be little variations in TEC even within the same latitudinal zone.
Comparative Nutritional Analysis of Phoenix dactylifera and Phoenix reclinata Seeds
Authors: Aderinola Olapeju , Babalola Olutunde , Ogidan John , Amiolemen Sunday , Omoyajowo Koleayo
Published: November 2020

This study examined the nutritional content of seeds of two date palm species?Phoenix dactylifera and Phoenix reclinata, using standard analytical procedures. Results obtained from proximate method shows a significant increase (P<0.05) in crude protein, carbohydrate and ash content of P. dactylifera seeds compared to that of P. reclinata. However, moisture content, crude fat and fibre was significantly higher (P<0.05) in seeds of P. reclinata than P. dactylifera. The mineral element analysis revealed a significant increase (P<0.05) in Na, K, Fe and Zn content in seeds of P. reclinata compared to P. dactylifera. However, a significant increase in Ca, Mg was observed in P. dactylifera as compared to P. reclinata. Hence, the study observed differences in the nutritional content of the seeds of the two date palm species but concludes that both seeds demonstrates great nutritional potential for humankind. Thus, it recommends that further research should focus on seeds and other under-utilized portions of a large group of fruits for industrial exploitation.
Euler’s Equations of Rigid Body: Its Control and Synchronization using Active Control and Recursive Backstepping methods.
Authors: Ogab Cornelius , Idowu Babatunde , Ogungbe Abiola , Onori Eugene , Ometan Olufunmilayo , Ogwala Aghogho
Published: November 2020

We present Euler’s Equation of Rigid Body, its control and synchronization using active control and recursive backstepping methods. Based on Lyapunov stability theory, control laws are derived to synchronize the chaotic system and also to control to a steady state as well as track to a desired function via recursive backstepping methods. Numerical simulation are shown to verify the results.
The Kinetics and Thermodynamics studies of the biosorption of Chromium (III) ions from aqueous solution using groundnut husk
Authors: Yusuff Olaniyi K , Mukadam Abdulrahman A. , Abdulraheem Adenike M.o , Akerele Aanuoluwapo
Published: November 2020

The biosorption of Cr (III) ions from aqueous solutions by groundnut husk, a low-cost biosorbent was studied on a laboratory scale batch experiments. The effects of pH, contact time, particle size, biosorbent dosage and temperature on the adsorption of Cr (III) ions were investigated. Determination of Chromium ion concentration in solution was done using Atomic Absorption Spectrophotometer (AAS). The results show that the removal mechanism is predominantly by chemisorption and it is dependent on the physical and chemical characteristics of the biosorbent material. From the initial concentration of 0.5 mM, optimum Cr (III) ions removal was obtained at pH of 4, particle size of 0.15 nm, contact time of 180 minutes and biosorbent dosage of 50 mg, with the highest biosorption efficiency of 81.15 %. The biosorption process was best described by the BET adsorption isotherm with R2 value 0.9814 indicating multiplayer adsorption. Analysis of the experimental data revealed that the biosorption of Cr (III) ions from aqueous solution by groundnut husk is a spontaneous process with a ?Go value of -24.38 kJmol-1 at 298 K and follow the pseudo second order kinetics with a rate constant of 0.0151 min-1. The results indicate that groundnut husk can be employed as a low cost alternative to commercial adsorbents in the removal of Cr (III) ions from wastewater.
Markers of Liver function in rabbits (Oryctolagus cuniculus): Bark extracts of Nauclea latifolia and Alchornea cordifolia plants
Authors: Ogunrinola Olabisi , Fajana Olusegun , Olaitan Samuel , Adu Oluwatosin , Nuno Millicent , Elemo Babajide
Published: November 2020

Introduction: The use of Nauclea latifolia and Alchornea cordifolia plants as herbal curative medicine is fast growing and the need to investigate the likely toxicity to avert severe medical issues. Aims: To assess the toxicity level, the liver function enzyme activities in rabbits (Oryctolagus cuniculus) administered with both ethanolic bark extracts of Nauclea latifolia and Alchornea cordifolia were studied. Materials and Methods: Eighty-four (84) rabbits were arbitrarily grouped into seven (n = 12), where group 1 is the control, and the remaining groups were orally administered with 500, 750 and 1000 mg/kg body weight of ethanolic bark extract of Nauclea latifolia and Alchornea cordifolia (LD50>1000mg/kg). In each group, after 24 hours of administration on the 1st, 3rd and 7th days, three animals were sacrificed. Markers of liver functions: serum alkaline phosphate (ALP), aspartate aminotransferase (AST) and alanine aminotransferase (ALT) enzymes activities were monitored using spectrophotometry instrument. Results: The results show a significant (p < 0.05) reduction of ALP, AST and ALT activities at all doses for the days of administration of both ethanolic bark extracts of Nauclea latifolia and Alchornea cordifolia when compared to the control. Conclusion: The study suggests that ethanolic bark extracts of Nauclea latifolia and Alchornea cordifolia may possess relative hepatoprotective activity.
A Multi-Agent Based Approach to Short Message Service (SMS) Normalization System
Authors: Adesina Olusola
Published: November 2020

SMS language is characterized by fashion and user’s creativity but needs a transformation to proper English words or spelling to formulate natural language and text processing activities. The proposed application, Web Information Retrieval System Architecture Based on SMS (WIRSABoSMS), normalizes SMS language to retain its original syntactic structure. The concept of mobile agents in web technology was introduced as a medium to achieving Short Message Service (SMS) normalization. SMS normalization was carried out with the adoption of multi-agent technology, as agents are involved in character search, sort, and compare of the strings written in SMS form into its parental orthography. This architecture was designed based on web information retrieval system (IRS) in order to achieve SMS normalization. BLEU (bilingual evaluation understudy) was used to evaluate the quality of text. BLEU scores compare the human judgment with that of the machine translation using two set of corpora. The outcome of syntactic text message normalization recorded an average of 90% performance (for the corpus collected from researchers) when compared with the similar test conducted with human judgment using BLEU scores metric in an health-related domain.
ASSESMENT OF HEAVY METALS IN MANIHOT ESCULENTA (CASSAVA) IN SELECTED FARMS IN LAGOS STATE, NIGERIA
Authors: Adu Abosede A. , John Bamidele I. , Ojekale Anthony B. , Aderinola O.J.
Published: November 2020

Introduction: Anthropogenic activities by man in Nigeria especially Lagos State have induced accumulation of heavy metals in soils which invariably have resulted in the disturbance of living organism’s biochemical and physiological functions. Aim: This study assessed the level of heavy metals concentration in cassava (Manihot esculenta) harvested in selected farms in Lagos state. Materials and Methods: Leaves, stems, tubers of cassava were obtained from Morogbo, Badagry area and Odogunyan, Ikorodu area; and the concentrations of heavy metals content were determined using Atomic Absorption Spectrophotometric (AAS) method. Results: The results in mg/kg showed that heavy metals concentration [Nickel (3559.67 ± 5794.16), Manganese (120.33 ± 5.51), Copper (52.10 ± 2.85 and so on] were highly bioaccumulated in leafy part of the cassava. Conversely, Sodium (11620.00 ± 820.18) and Potassium (15133.33 ± 508.46) were highly bio-accumulated in the cassava’s stem while Calcium (3996.67 + 35.12) was found in high concentration in the cassava’s tuber. Lead (0.03 ± 0.05) and Cadmium (0.08 ± 0.08) were of significant values in the soil of Ikorodu and lower in the soil of Badagry. Heavy metal (Ni, Mn, Cd, Mg and Na) bio-accumulation in the two different location were higher in Badagry than Ikorodu, while Zn, Fe and K were higher in Ikorodu than in Badagry but Cobalt was not detected in both sites. Conclusion: Copper, Lead, Zinc, Manganese, Iron, Nickel, Calcium, Sodium and Potassium were above the recommended level of W.H.O. Therefore, consumption of leafy and tuber part of the cassava in both Ikorodu and Badagry areas could pose threat to animals.
Thermodynamics of adsorption of food colours
Authors: Akinbulu Adebayo , Ogunbayo Toafeek
Published: November 2020

Thermodynamics of adsorption of two synthetic food colours, Tartrazine and Brilliant blue, was investigated. The adsorbent used was activated carbon, produced from saw dust waste. For each of the food colours, equilibrium studies were carried out at different temperatures (308 K, 318 K, 328 K and 338 K). The Langmuir adsorption model was employed for equilibrium studies. Amount of colour adsorbed per gram of adsorbent, at equilibrium, was influenced by molecular size of adsorbate and temperature. Adsorption at the tartrazine-adsorbent interface was exothermic, while that at the brilliant blue-adsorbent interface was endothermic. Adsorption of tartrazine was associated with a negative entropy change, while there was increased degree of disorderliness at the brilliant blue-adsorbent interface. Each of the adsorbate-adsorbent systems was associated with positive change in Gibbs free energy, within the range of temperature employed in this work.
Identifying Real and Posed Smiles from Observers’ Galvanic Skin Response and Blood Volume Pulse
Authors: Gao Renshang , Islam Atiqul , Gedeon Tom , Hossain Md Zakir
Published: November 2020

The smiles stimuli were collected from the UvA-NEMO dataset. A total of 60 videos were randomly selected for this experiment. We created four categories out of these 60 videos, namely PV (paired videos), PI (paired images), SV (single video), and SI (single image). When the same person was viewed by observers in both real and posed smile videos, we report this as "paired videos", otherwise we use the term "single video".
Similarity-Based Clustering for Enhancing Image Classification Architectures
Authors: Parikh Dishant , Aggarwal Shambhavi
Published: November 2020

Convolutional networks are at the center of best in class computer vision applications for a wide assortment of undertakings. Since 2014, profound amount of work began to make better convolutional architectures, yielding generous additions in different benchmarks. Albeit expanded model size and computational cost will, in general, mean prompt quality increases for most undertakings but, the architectures now need to have some additional information to increase the performance. We show empirical evidence that with the amalgamation of content-based image similarity and deep learning models, we can provide the flow of information which can be used in making clustered learning possible. We show how parallel training of sub-dataset clusters not only reduces the cost of computation but also increases the benchmark accuracies by 5-11 percent.
EPIDEMIOLOGICAL CHARACTERISTICS OF COVID-19 INCIDENCE IN THE POPULATION OF KRASNODAR KRAI IN THE PERIOD FROM MARCH 10 TO AUGUST 17, 2020
Authors:   Federal Budget Institute of Science «Central Research Institute of Epidemiology», Dubodelov D.V. , Klushkina V.V. , Churilova N.S. , Panasiuk Ia.V. , Vlasenko N.V. , Kuzin S.N.
Published: November 2020

We studied individual parameters of the COVID-19 epidemic process in the Krasnodar Territory for the period from March 10 to August 17, 2020. It is shown that a high level of morbidity remains after the abolition of restrictive measures — on average, 83 patients with COVID-19 were registered per day in the final phase of the observation period. The proportion of patients with evere and moderate disease is 63.7%, and in persons over the age of 65, their proportion is slightly higher — 76.0%. The most intensively involved in the epidemic process are pensioners, temporarily unemployed (men and women) and workers of medical organizations (women)
FORMATION OF POPULATION IMMUNITY TO SARS-CoV-2 IN THE MOSCOW REGION
Authors:   Federal Budget Institute of Science «Central Research Institute of Epidemiology», Chekanova T.A. , Akimkin V.G. , Kalenskaya A.V. , Tyrgina T.V. , Tivanova E.V.
Published: November 2020

49 813 sera from persons without clinical symptoms of infectious diseases were tested for IgG to the nucleocapsid protein of SARS-CoV-2 at the Center for Molecular Diagnostics (Central Research Institute of Epidemiology) from May 22 to August 28, 2020. The dynamics of the incidence of seropositive persons was assessed by decades. The maximum seroprevalence was noted at the end of May. Seroprevalence indicators changed slightly from June 21 to August 28 (maximum values, about 17%, were noted from July 1 to July 20), which was consistent with the slowdown in the number of new cases of COVID-19 in the Moscow region
Analisis Persepsi Dosen Akuntansi Dan Mahasiswa Akuntansi Mengenai Peranan Akuntan Di Era Revolusi Industri 4.0
Authors: Merlina Merlina , Nuraini Airin
Published: November 2020

Perkembangan ekonomi digital di Era Revolusi Industri 4.0 memberikan dampak sigifikan dalam perkembangan di bidang akuntansi. Saat ini sudah banyak pelaku usaha yang menggunakan perangkat lunak akuntansi dalam kegiatan usahanya. Perangkat lunak akuntansi tersebut dapat dioperasikan oleh orang yang tidak memiliki dasar akuntansi asalkan pengguna memahami bagaimana cara kerja perangkat lunak akuntansi tersebut. Penelitian ini membahas apakah perkembangan tekonologi di Era Revolusi Industri 4.0 dapat menggantikan peranan akuntan sepenuhnya atau belum akan menggantikan peran akuntan, tetapi mengakibatkan perubahan pada peranan akuntan yang dilihat dari persepsi dosen akuntansi dan mahasiswa akuntansi. Penelitian ini bertujuan untuk memberikan bukti empiris perihal adanya perbedaan persepsi yang signifikan antara dosen akuntansi dan mahasiswa akuntansi mengenai peranan akuntan di era Revolusi Industri 4.0.

 

Penelitian ini merupakan penelitian kuantitatif dengan menggunakan metode survei dengan kuesioner. Penelitian ini menggunakan sampel yang terdiri dari 47 dosen akuntansi dan 135 mahasiswa akuntansi di Institut Bisnis dan Informatika Kesatuan Bogor. Pengujian hipotesis dilakukan dengan menggunakan uji beda (Independent Samples T-Test). Hasil dari penelitian ini adalah tidak terdapat perbedaan persepsi yang signifikan antara dosen akuntansi dan mahasiswa akuntansi mengenai peranan akuntan di era Revolusi Industri 4.0. Selain itu, menurut sebagian besar dosen akuntansi dan mahasiswa akuntansi di IBI Kesatuan perkembangan teknologi di era Revolusi Industri 4.0 belum dapat mengantikan peranan akuntan sepenuhnya.

 

 

 

 

Kata kunci : Persepsi, Dosen Akuntansi, Mahasiswa Akuntansi, Revolusi Industri 4.0
Variasi Bentuk Leksikal Bahasa Madura Ranah Nelayan di Kabupaten Sumenep
Authors: Suhartati Suhartati , Fauzi Moh.
Published: November 2020

Bahasa Madura saat ini mulai mengalami kemunduran karena ditinggalkan oleh penuturnya. Bahasa Madura merupakan bahasa daerah yang berperan penting dalam melindungi bahasa Indonesia dari serangan bahasa asing. Untuk itu perlu adanya kesadaran dari semua pihak utamanya dari masyarakat Madura sendiri untuk tetap mengembangkan dan mempertahankan bahasa Madura dari kepunahan. Penelitian ini bertujuan untuk mengetahui bentuk variasi leksikal bahasa Madura pada masyarakat nelayan di Kecamatan Saronggi Kabupaten Sumenep. Penelitian ini difokuskan pada komunikasi sehari-hari yang biasa dipakai oleh masyarakat nelayan di Kecamatan Saronggi Kabupaten Sumenep. Metode dalam penelitian ini adalah deskriptif kualitatif yang ditinjau dari kajian Morfologi dengan menggunakan teknik purposive sampling. Hasil penelitian menunjukkan adanya variasi bentuk leksikal yang berupa kata dasar bersinonimi, seperti; aѐng ondhur = aѐng sorot, dan berupa kata turunan, seperti; bi’-rombi’ (alat penangkap kepiting) yang mengalami reduplikasi suku akhir. Dengan adanya penelitian variasi leksikal bahasa Madura ranah nelayan ini, diharapkan dapat menambah pengetahuan dan sekaligus melestarikan bahasa Madura khususnya di Kabupaten Sumenep.
Resenha
Authors: Costa Lidiane Natalicia
Published: November 2020

Resumo: O objetivo do trabalho é apresentar a resenha do livro “A cruel pedagogia do vírus”, do sociólogo Boaventura de Sousa Santos, publicado em 2020 na conjuntura da Covid-19. Foi realizado o resumo descritivo dos capítulos e a análise sobre os potenciais conhecimentos que a pandemia propiciou para o enfrentamento da quarentena política, cultural e ideológica do capitalismo. Diante destas questões, constatou-se a relevância da obra para as pesquisas em Ciências Humanas, sobretudo para o entendimento das crises que foram perpetuadas durante muitas décadas e agudizadas no contexto pandêmico.
PENGARUH KEPATUHAN DAN MOTIVASI PENDERITA TB PARU TERHADAP TINGKAT KESEMBUHAN PENGOBATAN DI PUSKESMAS TANJUNG MORAWA KABUPATEN DELI SERDANG TAHUN 2017
Authors: Aprinawaty Sirait Reni , Verawati Lubis Imelda J
Published: November 2020

Tuberculosis (TB) is one of the infectious disease remains a significant health problem forpeople the world till now, including Indonesia. Tanjung Morawa Health Center is clinicthat the lowest cure rate of 34 health centers in Deli Serdang district. The number ofpatients with Pulmonary TB positive BTA at Deli Serdang district by the Year 2014 manyas 142 people with cure rate 75,79% In year 2015, there were 124 patients withPulmonary TB positive BTA but cure rate 63,5%.. This means decreasing of cure ratein Deli Serdang district and did not reach the target yet was set at least 85%. This type ofresearch using explanatory research aims to explain the effect of adherence andmotivation cure level of pulmonary tuberculosis treatment at Tanjung Morawa . Thepopulation were all patients with positive BTA pulmonary TB with a sample size of 21people. The results of bivariat statistic test showed variables which influence treatment ofPulmonary TB cure rate, patient compliance (p=0.002), the family support/PMO(p=0.003) and staff support (p=0.008). For increase TB patients awareness need IECabout pulmonary tuberculosis diseases, extension or counseling patients that patientsmore understand about their diseases and responsible on their recovery.
HUBUNGAN PENGETAHUAN PEGAWAI DENGAN PEMILAHAN LIMBAH PADAT DI RUMAH SAKIT UMUM SEMBIRING TAHUN 2019
Authors: Damanik Yunita Syahputri , Bahri Khoirul
Published: November 2020

Medical activities in the polyclinic room, ward, operating theatre and laboratory. The danger that comes from hospital medical waste which causes disease or injury. Medical waste exposure especially sharp object which causes virus infection like Human Immunodeficiency Virus (HIV)/Acquired Immuno Defeciency Syndrome(AIDS) and hepatitis B and C, who are at higher risk of infection because contamined sharp objects are nurses. This research done at the Sembiring Hospital Delitua Deli Serdang Regency. The objectives of this research is to know the relationship of the employees with the sorting of the medical solid waste. The design of this study was survey analytics design with a cross sectional study. The Univariate and bivariate of this research used Chi Square Test. The population of this research is nurses and the total sample is 65 people with the purposive sampling tehnic. The deficient of respondents knowlegde with the sorting of the medical solid waste as much as 35 people (53,8%). The sufficient of respondents knowlegde with the sorting of the medical solid waste as much as 16 people (24,6%) and the good knowlegde as much as 14 people (21,5%). The resulted of the bivariate analitycs with the knowlegde obtained p value 0.004< α 0.05, there is a relationship of employees knowlegde with the sorting of the medical solid waste, it is expect from the hospital to provide periodic checks in the medical waste producing ward to realize the comfort and cleanliness of the hospital environment.
HUBUNGAN POLA ASUH IBU DENGAN PERILAKU PICKY EATING PADA ANAK USIA PRASEKOLAH DI LINGKUNGAN VII SIMALINGKAR KELURAHAN MANGGA DUA KECAMATAN MEDAN TUNTUNGAN TAHUN 2019
Authors: Simamora Hetty , Siallagan Ance M
Published: November 2020

Picky eating is the behavior of children who experience eating disorders in the form of refusal to eat, do not want to eat, the length of time to eat more than 30 minutes, and only want to eat certain foods. The purpose of this study was to determine the relationship between maternal parenting with Picky Eating behavior in preschool children in Simalingkar VII Ward, Mangga Dua Village, Medan Tuntung District. This research uses correlation research design with cross sectional approach method. Population The population in this study were all preschool children (3-5 years old) in the VII Environment of Simalingkar, Mangga Dua Village, Medan Tuntung District, as many as 36 people and their mothers. Sampling in this study is a way to do with a total sampling technique in which all populations are sampled, where the number of respondents is equal to the total population of 36 respondents, namely mothers who have preschool age children in the Simalingkar District VII, Mangga Dua Village, Medan Tuntung District. The results of this study indicate that there is no relationship between maternal parenting and picky eating behavior in preschool children in Simalingkar Ward VII Mangga Dua, Medan Tuntung District. Suggested to the next researcher to review about other factors related to picky eating behavior in preschool children.
Meningkatkan Kualitas Hidup Penderita HIV/AIDS Melalui Penggunaan Antiretroviral (ARV) dan Dukungan Keluarga
Authors: Batubara Saiful , Marfitra Adhi
Published: November 2020

The damage to the immune system in people with HIV infection resulted in them being easily attacked by other diseases, especially the decrease in the quality of life of HIV-AIDS sufferers. Therefore, the purpose of this research is to know the relationship between compliance with antiretroviral use and family support in improving the quality of life of people with HIV-AIDS. For that, quantitative descriptive research with the population is the entire patient with HIV-AIDS. They undergo medical checkup at Budi Kemuliaan hospital-Batam aged between 20-35 years which amounted to 76 people and samples as many as 60 people selected using the Purposive sampling method. The results showed a significant link between compliance with the use of antiretroviral and quality of life and the relationship between the quality of life with the support of the family in HIV/AIDS patients at the Budi Kemuliaan hospital-Batam.
PERAN ROHANIWAN SEBAGAI KONSELOR DALAM PEMBERIAN LAYANAN KONSELING PASTORAL
Authors: Yuni Munik
Published: November 2020

Dalam konseling pastoral menekankan pada penguatan batiniah secara religiusitas (pastoral care) yang sangat dibutuhkan oleh umat beragama Konseling pastoral merupakan bentuk unik dari administrasi konseling yang dilakukan untuk membantu klien memperoleh kehidupan yang seimbang sebagai pribadi yang utuh. Keberadaan rohiawan menjadi suatu hal yang krusial bagi para jemaat Kristen. Sebab rohaniwan mengambil peran seseorang yang dianggap dapat membantu dan memberikan harapan pada jemaat. Selain itu rohiawan juga berperan sebagai konselor pastoral yang memiliki keunikan diantara konselor pada umumnya, baik dalam fungsi sosial maupun simbolis. Konselor pastoral yang bertugas di lembaga-lembaga publik dan melihat diri mereka sebagai teolog publik yang menanamkan nilai-nilai pastoral ke dalam layanan sosial dan pasar medis. Artikel ini merupakan sebuah gagasan konseptual yang pengumpulan datanya diperoleh dari artikel-artikel dari jurnal yang relevan dengan gagasan ini, dan diperkuat oleh  wawancara dengan salah satu rohaniwan (romo), serta dokumentasi
Bulgarian poetry in the seventies of the twentieth century reflected in three propaganda and one marginal anthology
Authors: Angelova Maya
Published: November 2020

This article investigates the scope of ideology that infected poetry in the nineteen seventies; the processes of marginalization of uncomfortable poetic voices, and respectively, the mechanisms imposing propaganda and anthologizing the poetically wrapped agitation; the stabilizations and tensions along the centre-periphery axis; the role of anthologies by authors not from the capital in the process of making sense of the country (province) as one free from the political poetic category. In a synchronous plan, some anthological specimens were issued over a short period of time, e.g. Poetic Anthology about the Silent Feat (1974), The High Wave (1974), Sprays (1975) and Poppies (1977).

The first anthology is dedicated to the law enforcement agencies and to the state security. The second is an oriented and ambitious paragon of socialist realism poetry. The third anthology has been conceived of as a forum for the authors who were selected exclusively from among the members of the Union of Bulgarian writers. The fourth volume is a seemingly unpretentious collection that defines itself as an anthology. The compilation process, however, took pains far greater than expected – it was a three-year long odyssey from the moment the anthology of national/home poetry was included in the publishing plan for 1975 to the admission of an unnamed title in the publishing plan for 1977, as well as the resulting marginalization of the Poppies anthology after its publication.
Cenzura wobec czasopisma „Kontrasty“ w latach 1965–1979
Authors: Kościewicz Katarzyna
Published: November 2020

Celem artykułu jest omówienie procesu cenzurowania cza- sopisma „Kontrasty” w latach 1965–1979. Analiza przeprowadzona została w oparciu o nieobecne dotąd w dyskursie naukowym źródła pochodzące z zespołu Głównego Urzędu Kontroli Prasy, Publikacji i Wi- dowisk przechowywane w Archiwum Akt Nowych w Warszawie. Autorka pokazuje cenzurowanie „Kontrastów” przez Wojewódzki Urząd Kontroli Prasy, Publikacji i Widowisk w Białymstoku jako zjawisko złożone, dynamicznie zmieniające się w ciągu opisywanej dekady, zależne od zaplecza intelektualnego i politycznego cenzurowanego środowiska oraz momentu historycznego.