bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on the Roof Advanced Breaking Position and Influences of Large Mining Height Working Face in Shallow Coal Seam
Authors: Huang Qingxiang , He Yanpeng , Li Feng
Published: April 2020

The large mining height (LMH) in shallow coal seam has been widely applied in the Shenfu coalfield, China. The dynamic load is obvious, and the rib spalling is serious when the LMH working face concerns roof weighting. The advanced breaking position of the roof affects the strength of the ground pressure when the roof is broken. Firstly, based on a large number of actual measurements and physical simulation experiments, the rock formation in the fall zone, where the articulated structure cannot be articulated between the coal seam and the main roof, is called the equivalent immediate roof (EIR). When the mining height increases, the thickness of the EIR increases non-linearly. Next, based on the theory of “elastic foundation beam”, a mechanical model for the advanced breaking of the roof is established in shallow coal seam, and the calculation equation for the advanced breaking position of the roof is given; then, designed and carry out boreholes of the no. 22201 working face in the Zhangjiamao Coal Mine. The theoretical calculation of key strata results (5.6–6.9 m) are in the range of field measurement results (5–8 m). According to the field measurement results, the roof movement of the LMH working face is ahead of the roof weighting. Finally, we define the thickness of EIR and the mining height ratio as the immediate mining ratio ki, which affects the degree of filling of the goaf and determines the structural form of the main roof. When the ki is small, the goaf is fully filled; when the ki is large, the goaf is fully filled. Under the same conditions, different filling rate conditions will form different roof structures. Results of this research can be helpful to control roof weighting and provide early warning of possible safety problems related to the LMH working face in shallow coal seam.
Carcass Yields and Physiochemical Meat Quality of Semi-extensive and Intensively Farmed Impala (Aepyceros melampus)
Authors: Needham Tersia , Engels Retha A. , Bureš Daniel , Kotrba Radim , van Rensburg Berndt J. , Hoffman Louwrens C.
Published: April 2020

The effects of sex and production systems on carcass yield, meat quality and proximate composition of sub-adult impala were evaluated by culling 35 impala from intensive (12 males) and semi-extensive (12 males and 11 females) production systems within the same game farm. While no sexual dimorphism was found for carcass weights, male impala had a higher dressing percentage than females, indicating a higher meat production potential. Few differences were observed for yields between the male impala from the different production systems, but physical meat quality parameters indicated possible stress for those kept intensively. Minor differences existed in physiochemical parameters between various impala muscles for the two sexes and production systems, providing little motivation for these factors to be considered when processing sub-adult impala carcasses. Impala meat from both sexes, all muscles and all production systems produced meat with shear force values below 43 N, and thus may be considered as tender. Furthermore, the proximate composition of all impala meat in this study ranged from 74.7 to 77.0 g/100g moisture, 20.7 to 23.5 g/100g protein, 1.2 to 2.2 g/100g fat and 1.1 to 1.3 g/100g ash content. These values compare favorably to other game species, indicating that impala meat may serve as a lean protein source.
Development of Next-Generation Nutritionally Fortified Plant-Based Milk Substitutes: Structural Design Principles
Authors: McClements David Julian
Published: April 2020

Consumers are increasingly interested in decreasing their dietary intake of animal-based food products, due to health, sustainability, and ethical concerns. For this reason, the food industry is creating new products from plant-based ingredients that simulate many of the physicochemical and sensory attributes associated with animal-derived foods, including milk, eggs, and meat. An understanding of how the ingredient type, amount, and organization influence the desirable physicochemical, sensory, and nutritional attributes of these plant-based foods is required to achieve this goal. A potential problem with plant-based diets is that they lack key micronutrients, such as vitamin B12, vitamin D, calcium, and ω-3 fatty acids. The aim of this review is to present the science behind the creation of next-generation nutritionally fortified plant-based milk substitutes. These milk-like products may be formed by mechanically breaking down certain plant materials (including nuts, seeds, and legumes) to produce a dispersion of oil bodies and other colloidal matter in water, or by forming oil-in-water emulsions by homogenizing plant-based oils and emulsifiers with water. A brief overview of the formulation and fabrication of plant-based milks is given. The relationship between the optical properties, rheology, and stability of plant-based milks and their composition and structure is then covered. Approaches to fortify these products with micronutrients that may be missing from a plant-based diet are also highlighted. In conclusion, this article highlights how the knowledge of structural design principles can be used to facilitate the creation of higher quality and more sustainable plant-based food products.
Molecular Hydrogen Microstructures in Planetary Nebulae
Authors: Akras Stavros , R. Gonçalves Denise , Ramos-Larios Gerardo , Aleman Isabel
Published: April 2020

Molecular hydrogen (H 2 ) emission is commonly detected in planetary nebulae (PNe), specially in objects with bipolar morphologies. New studies showed that H 2 gas is also packed in microstructures embedded in PNe of any morphological type. Despite the presence of H 2 in cometary knots being known for years, only in the last five years, much deeper imagery of PNe have revealed that H 2 also exists in other types of low-ionisation microstructures (LISs). Significant differences are found between the host PNe of cometary knots and other types of LISs, such as nebula age, central star temperature (evolutionary stage) and the absolute sizes of the microstructure itself.
Metabolic Insights into the Anion-Anion Antagonism in Sweet Basil: Effects of Different Nitrate/Chloride Ratios in the Nutrient Solution
Authors: Corrado Giandomenico , Lucini Luigi , Miras-Moreno Begoña , Chiaiese Pasquale , Colla Giuseppe , De Pascale Stefania , Rouphael Youssef
Published: April 2020

Sweet basil (Ocimum basilicum L.) is a highly versatile and globally popular culinary herb, and a rich source of aromatic and bioactive compounds. Particularly for leafy vegetables, nutrient management allows a more efficient and sustainable improvement of crop yield and quality. In this work, we investigated the effects of balanced modulation of the concentration of two antagonist anions (nitrate and chlorine) in basil. Specifically, we evaluated the changes in yield and leaf metabolic profiles in response to four different NO3−:Cl− ratios in two consecutive harvests, using a full factorial design. Our work indicated that the variation of the nitrate-chloride ratio exerts a large effect on both metabolomic profile and yield in basil, which cannot be fully explained only by an anion-anion antagonist outcome. The metabolomic reprogramming involved different biochemical classes of compounds, with distinctive traits as a function of the different nutrient ratios. Such changes involved not only a response to nutrients availability, but also to redox imbalance and oxidative stress. A network of signaling compounds, including NO and phytohormones, underlined the modeling of metabolomic signatures. Our work highlighted the potential and the magnitude of the effect of nutrient solution management in basil and provided an advancement towards understanding the metabolic response to anion antagonism in plants.
Dynamics of General Class of Difference Equations and Population Model with Two Age Classes
Authors: Moaaz Osama , Chatzarakis George E. , Chalishajar Dimplekumar , Bazighifan Omar
Published: April 2020

In this paper, we study the qualitative behavior of solutions for a general class of difference equations. The criteria of local and global stability, boundedness and periodicity character (with period 2 k ) of the solution are established. Moreover, by applying our general results on a population model with two age classes, we establish the qualitative behavior of solutions of this model. To support our results, we introduce some numerical examples.
Investigation on Compressive Formability and Microstructure Evolution of 6082-T6 Aluminum Alloy
Authors: Xu Zhouli , Ma Huijuan , Zhao Ning , Hu Zhili
Published: April 2020

The 6xxx aluminum alloy is the first choice for automotive lightweight forgings due to its excellent performance, high strength and low weight. The production time of current aluminum alloy forging generally exceeds 10 h. To reduce the production time of traditional aluminum alloy forgings, 6082-T6 aluminum alloy is used in the forming process. The effects of different heating temperatures (200 °C, 300 °C, and 400 °C) and deformation degrees (30%, 50%, and 70%) on the deformability and properties of 6082-T6 billets have been investigated. The results show that when the heating temperature is higher than 300 °C, the compressive deformation resistance obviously decreases with increasing strength. With compression at 200 °C and 70% deformation with short heating time, the strength of the sample is close to the T6 (solution treatment and artificial aging) state. A large number of dislocations and subgrains were introduced due to the compression deformation, and their amounts decreased as the heating temperature increased. The size of the precipitated phase β′′ slightly grows under a heating temperature of 200 °C. However, when the heating temperature is higher than 300 °C, the precipitated phase gradually changes from β′′, which is optimal for the strengthening effect, to β′ and β, which offer weaker strengthening. Therefore, under a lower heating temperature of 200 °C for 5 min, a large number of dislocations are introduced with the β′′ precipitated phase, leading to higher strength with less heat treatment time.
Glycosylation of Stilbene Compounds by Cultured Plant Cells
Authors: Shimoda Kei , Kubota Naoji , Uesugi Daisuke , Kobayashi Yusuke , Hamada Hatsuyuki , Hamada Hiroki
Published: April 2020

Oxyresveratrol and gnetol are naturally occurring stilbene compounds, which have diverse pharmacological activities. The water-insolubility of these compounds limits their further pharmacological exploitation. The glycosylation of bioactive compounds can enhance their water-solubility, physicochemical stability, intestinal absorption, and biological half-life, and improve their bio- and pharmacological properties. Plant cell cultures are ideal systems for propagating rare plants and for studying the biosynthesis of secondary metabolites. Furthermore, the biotransformation of various organic compounds has been investigated as a target in the biotechnological application of plant cell culture systems. Cultured plant cells can glycosylate not only endogenous metabolic intermediates but also xenobiotics. In plants, glycosylation reaction acts for decreasing the toxicity of xenobiotics. There have been a few studies of glycosylation of exogenously administrated stilbene compounds at their 3- and 4′-positions by cultured plant cells of Ipomoea batatas and Strophanthus gratus so far. However, little attention has been paid to the glycosylation of 2′-hydroxy group of stilbene compounds by cultured plant cells. In this work, it is described that oxyresveratrol (3,5,2′,4′–tetrahydroxystilbene) was transformed to 3-, 2′-, and 4′-β-glucosides of oxyresveratrol by biotransformation with cultured Phytolacca americana cells. On the other hand, gnetol (3,5,2′,6′–tetrahydroxystilbene) was converted into 2′-β-glucoside of gnetol by cultured P. americana cells. Oxyresveratrol 2′-β-glucoside and gnetol 2′-β-glucoside are two new compounds. This paper reports, for the first time, the glycosylation of stilbene compounds at their 2′-position by cultured plant cells.
Systematically Exploring Molecular Aggregation and Its Impact on Surface Tension and Viscosity in High Concentration Solutions
Authors: Wang Huan , Kong Han , Zheng Jie , Peng Hui , Cao Chuangui , Qi Yong , Fang Kuanjun , Chen Weichao
Published: April 2020

The aggregation structure of dye molecules has a great influence on the properties of dye solutions, especially in high concentration. Here, the dye molecular aggregation structures were investigated systemically in aqueous solutions with high concentration using three reactive dyes (O-13, R-24:1 and R-218). O-13 showed stronger aggregation than R-24:1 and R-218. This is because of the small non-conjugate side chain and its β-linked position on the naphthalene of O-13. Compared with R-218, R-24:1 showed relatively weaker aggregation due to the good solution of R-24:1. The change of different aggregate distributions in the solutions were also investigated by splitting the absorption curves. Moreover, it is found that the surface tension of solutions can be modified by the combined effect of both aggregation and the position of the hydrophilic group, which, however, also have an effect on viscosity. This exploration will provide guidance for the study of high concentration solutions.
Soil or Vermiculite-Applied Microencapsulated Peppermint Oil Effects on White Mustard Initial Growth and Performance
Authors: Synowiec Agnieszka , Krajewska Agnieszka
Published: April 2020

Microencapsulated peppermint (Mentha x piperita L.) essential oil (MPEO) is a prospective botanical herbicide. A hypothesis was formulated, that the type of growth medium (vermiculite or silty clay loam soil substrate) affects the phytotoxic potential of MPEO. A pot experiment in a randomized design assessed the effect of five doses of MPEO in a range of 0–108 g m−2 or 0–145 g m−2, mixed with vermiculite or with soil, respectively, on early growth of white mustard (Sinapis alba L. cv. Zlata), tested here as a model “weed” species. The morphologic analyses were supported by selected biochemical measurements. The two highest doses of microcapsules (from 73 to 145 g m−2) caused a significant decrease of plants’ height and biomass. An increase of anthocyanin content in the aboveground parts of mustard is supportive for the induction of defense mechanisms against MPEO-triggered stress in mustard leaves. In conclusion, MPEO appears as a promising bio-herbicide. However, we are aware that further studies on the mechanisms of action of MPEO in different weed species are necessary to test (i) whether or not the effect is consistent to be proficiently exploited for weed control in field and (ii) to deepen the biochemical and physiological reactions by the plants against MPEO treatments.
Rheological Properties of Aqueous Dispersions of Bacterial Cellulose
Authors: Vinogradov Markel I. , Makarov Igor S. , Golova Lyudmila K. , Gromovykh Peter S. , Kulichikhin Valery G.
Published: April 2020

Bacterial cellulose as polysaccharide possessing outstanding chemical purity and a unique structure compared with wood cellulose, attracts great attention as a hydrocolloid system. It was shown, that at intense mechanical action on a neat bacterial cellulose film in presence of water, the gel-like dispersions are obtained. They retain stability in time (at least, up to several months) and temperature (at least, up to 60 °C) without macro-phase separation on aqueous and cellulose phases. The main indicator of the stability is constant viscosity values in time, as well as fulfilling the Arrhenius dependence for temperature dependence of viscosity. Flow curves of diluted dispersions (BC content less than 1.23%) show strong non-Newtonian behavior over the entire range of shear rates. It is similar with dispersions of micro- and nanocrystalline cellulose, but the absolute viscosity value is much higher in the case of BC due to more long fibrils forming more dense entanglements network than in other cases. Measuring the viscosity in increase and decrease shear rate modes indicate an existence of hysteresis loop, i.e., thixotropic behavior with time lag for recovering the structural network. MCC and NCC dispersions even at cellulose content more than 5% do not demonstrate such behavior. According to oscillatory measurements, viscoelastic behavior of dispersions corresponds to gel-like systems with almost total independence of moduli on frequency and essentially higher values of the storage modulus compared with the loss modulus.
The Use of Unmanned Aerial Vehicles in Remote Sensing Systems
Authors: Olejnik Aleksander , Kiszkowiak Łukasz , Rogólski Robert , Chmaj Grzegorz , Radomski Michał , Majcher Maciej , Omen Łukasz
Published: April 2020

This paper describes the possibility of using a small autonomous helicopter to perform tasks using a remote sensing system. This article further shows the most effective way to properly set up autopilot and to process its validation during flight tests. The most important components of the remote sensing system are described and the possibilities of using this system to monitor gas transmission and distribution networks are presented.
Massive MIMO-Based Distributed Signal Detection in Multi-Antenna Wireless Sensor Networks
Authors: Wei Guofeng , Zhang Bangning , Ding Guoru , Zhao Bing , Wei Yimin , Guo Daoxing
Published: April 2020

For massive multiple-input multiple-output (MIMO) distributed wireless sensor networks, this paper investigates the role of multi-antenna sensors in improving network perception performance. First, we construct a distributed multi-antenna sensor network based on massive MIMO. By using the anti-fading characteristics of multi-antennas, it is better to achieve accurate detection than the single-antenna sensor network. Based on this, we derive a closed-loop expression for the detection probability of the best detector. Then, we consider the case that the sensor power resources are limited, and thus we want to use finite power to achieve higher detection probability. For this reason, the power was optimized by the alternating direction method of multipliers (ADMM). Moreover, we also prove that only statistical channel state is needed in large-scale antenna scenarios, which avoid the huge overhead of channel state information. Finally, according to the simulation results, the multi-antenna sensor network has better detection performance than the single-antenna sensor network which demonstrates the improved performance of the proposed schemes and also validates the theoretical findings.
Fast Anchor Point Matching for Emergency UAV Image Stitching Using Position and Pose Information
Authors: Shao Ruizhe , Du Chun , Chen Hao , Li Jun
Published: April 2020

With the development of unmanned aerial vehicle (UAV) techniques, UAV images are becoming more widely used. However, as an essential step of UAV image application, the computation of stitching remains time intensive, especially for emergency applications. Addressing this issue, we propose a novel approach to use the position and pose information of UAV images to speed up the process of image stitching, called FUIS (fast UAV image stitching). This stitches images by feature points. However, unlike traditional approaches, our approach rapidly finds several anchor-matches instead of a lot of feature matches to stitch the image. Firstly, from a large number of feature points, we design a method to select a small number of them that are more helpful for stitching as anchor points. Then, a method is proposed to more quickly and accurately match these anchor points, using position and pose information. Experiments show that our method significantly reduces the time consumption compared with the-state-of-art approaches with accuracy guaranteed.
Neuropathological Mechanisms Associated with Pesticides in Alzheimer’s Disease
Authors: Tang Bor Luen
Published: April 2020

Environmental toxicants have been implicated in neurodegenerative diseases, and pesticide exposure is a suspected environmental risk factor for Alzheimer’s disease (AD). Several epidemiological analyses have affirmed a link between pesticides and incidence of sporadic AD. Meanwhile, in vitro and animal models of AD have shed light on potential neuropathological mechanisms. In this paper, a perspective on neuropathological mechanisms underlying pesticides’ induction of AD is provided. Proposed mechanisms range from generic oxidative stress induction in neurons to more AD-specific processes involving amyloid-beta (Aβ) and hyperphosphorylated tau (p-tau). Mechanisms that are more speculative or indirect in nature, including somatic mutation, epigenetic modulation, impairment of adult neurogenesis, and microbiota dysbiosis, are also discussed. Chronic toxicity mechanisms of environmental pesticide exposure crosstalks in complex ways and could potentially be mutually enhancing, thus making the deciphering of simplistic causal relationships difficult.
‘The Plastic Nile’: First Evidence of Microplastic Contamination in Fish from the Nile River (Cairo, Egypt)
Authors: Khan Farhan R. , Shashoua Yvonne , Crawford Alex , Drury Anna , Sheppard Kevin , Stewart Kenneth , Sculthorp Toby
Published: April 2020

The presence of microplastics (MPs) in the world’s longest river, the Nile River, has yet to be reported. This small-scale study aimed to provide the first information about MPs in the Nile River by sampling the digestive tracts of two fish species, the Nile tilapia (Oreochromis niloticus, n = 29) and catfish (Bagrus bayad, n = 14). Fish were purchased from local sellers in Cairo, and then their gastrointestinal tracts were dissected and examined for MPs. Over 75% of the fish sampled contained MPs in their digestive tract (MP prevalence of 75.9% and 78.6% for Nile tilapia and catfish, respectively). The most abundant MP type was fibers (65%), the next most abundant type was films (26.5%), and the remaining MPs were fragments. Polyethylene (PE), polyethylene terephthalate (PET) and polypropylene (PP) were all non-destructively identified by attenuated total reflectance Fourier transform infrared spectroscopy. A comparison with similar studies from marine and freshwater environments shows that this high level of MP ingestion is rarely found and that fish sampled from the Nile River in Cairo are potentially among the most in danger of consuming MPs worldwide. Further research needs to be conducted, but, in order to mitigate microplastic pollution in the Nile River, we must act now.
Lactational Transfer of Long-Chain Perfluorinated Carboxylic Acids in Mice: A Method to Directly Collect Milk and Evaluate Chemical Transferability
Authors: Fujii Yukiko , Harada Kouji H. , Kobayashi Hatasu , Haraguchi Koichi , Koizumi Akio
Published: April 2020

Perfluoroalkyl carboxylic acids (PFCAs), such as perfluorooctanoic acid (PFOA, C8), are a group of industrial chemicals that are detected in the serum of people throughout the world. Long-chain PFCAs (C9 to C13) have high lipophilicity, therefore they may have a high transfer rate to breast milk. This study investigated the lactational transfer of PFCAs with carbon chain lengths of 8 to 13 in mice. Lactating dams were given a single intravenous administration of PFCAs (C8 to C13) during the postnatal period (8–13 days after delivery). Milk was collected from the dam 24 h after administration using a milking device built in-house. Plasma was obtained from the dam at the same time as milk collection. The observed milk/plasma (M/P) concentration ratios were 0.32 for C8, 0.30 for C9, 0.17 for C10, 0.21 for C11, 0.32 for C12, and 0.49 for C13. These results indicate that the M/P concentration ratio is not related to the lipophilicity of PFCAs. However, estimated relative daily intake, an indicator of how much PFCA is transferred from dams to pups per body weight, increased with chain length: 4.16 for C8, 8.98 for C9, 9.35 for C10, 9.51 for C11, 10.20 for C12, and 10.49 for C13, which may be related to the lower clearance of long-chain PFCAs. These results indicate the importance of future risk assessment of long-chain PFCAs.
In Vitro Evaluation of the Effects of Cadmium on Endocytic Uptakes of Proteins into Cultured Proximal Tubule Epithelial Cells
Authors: Fujishiro Hitomi , Yamamoto Hazuki , Otera Nobuki , Oka Nanae , Jinno Mei , Himeno Seiichiro
Published: April 2020

Cadmium (Cd) is an environmental pollutant known to cause dysfunctions of the tubular reabsorption of biomolecules in the kidney. Elevated levels of urinary excretion of low-molecular-weight proteins such as β2-microglobulin (β2-MG) have been used as an indicator of Cd-induced renal tubular dysfunctions. However, very few studies have examined the direct effects of Cd on the reabsorption efficiency of proteins using cultured renal cells. Here, we developed an in vitro assay system for quantifying the endocytic uptakes of fluorescent-labeled proteins by flow cytometry in S1 and S2 cells derived from mouse kidney proximal tubules. Endocytic uptakes of fluorescent-labeled albumin, transferrin, β2-MG, and metallothionein into S1 cells were confirmed by fluorescence imaging and flow cytometry. The exposure of S1 and S2 cells to Cd at 1 and 3 µM for 3 days resulted in significant decreases in the uptakes of β2-MG and metallothionein but not in those of albumin or transferrin. These results suggest that Cd affects the tubular reabsorption of low-molecular-weight proteins even at nonlethal concentrations. The in vitro assay system developed in this study to evaluate the endocytic uptakes of proteins may serve as a useful tool for detecting toxicants that cause renal tubular dysfunctions.
Modelling Recharge from Irrigation Developments with a Perched Water Table and Deep Unsaturated Zone
Authors: Walker Glen R. , Currie Dougal , Smith Tony
Published: April 2020

Modelling of recharge under irrigation zones for input to groundwater modelling is important for assessment and management of environmental risks. Deep vadose zones, when coupled with perched water tables, affect the timing and magnitude of recharge. Despite the temporal and spatial complexities of irrigation areas; recharge in response to new developments can be modelled semi-analytically, with most outputs comparing well with numerical models. For parameter ranges relevant to the western Murray Basin in southern Australia, perching can reduce the magnitude of recharge relative to irrigation accessions and will cause significant time lags for changes to move through vadose zone. Recharge in the vicinity of existing developments was found to be similar to that far from existing developments. This allows superposition to be implemented spatially for new developments, thus simplifying estimation of recharge. Simplification is further aided by the use of exponential approximants for recharge responses from individual developments.
Investigating Atrazine Concentrations in the Zwischenscholle Aquifer Using MODFLOW with the HYDRUS-1D Package and MT3DMS
Authors: Beegum Sahila , Vanderborght Jan , Šimůnek Jiří , Herbst Michael , Sudheer K. P. , Nambi Indumathi M
Published: April 2020

Simulation models that describe the flow and transport processes of pesticides in soil and groundwater are important tools to analyze how surface pesticide applications influence groundwater quality. The aim of this study is to investigate whether the slow decline and the stable spatial pattern of atrazine concentrations after its ban, which were observed in a long-term monitoring study of pesticide concentrations in the Zwischenscholle aquifer (Germany), could be explained by such model simulations. Model simulations were carried out using MODFLOW model coupled with the HYDRUS-1D package and MT3DMS. The results indicate that the spatial variability in the atrazine application rate and the volume of water entering and leaving the aquifer through lateral boundaries produced variations in the spatial distribution of atrazine in the aquifer. The simulated and observed water table levels and the average annual atrazine concentrations were found to be comparable. The long-term analysis of the simulated impact of atrazine applications in the study area shows that atrazine persisted in groundwater even 20 years after its ban at an average atrazine concentration of 0.035 µg/L. These results corroborate the findings of the previous monitoring studies.
MAKNA KASIH DALAM YOH. 21:15-19
Authors: Purba Mida Yosephine
Published: April 2020

All people is longing for love. No one can escape from this fact.  Inspire of this fact human being are often have little courage to love others truly. Why? Because they are driven by their ego and want to fulfill it. The consequence is this, they see other people as a person to fulfill their ego in a subtle way. In order to gain a good understanding about the meaning of love, I analyzed John 21:15-19 with the help of some expert. This study shows that love is not about fulfilling ego but about dedication for others. Love is willingness to nurture life.
DIPANGGIL KEPADA KEKUDUSAN
Authors: Supriyadi Agustinus
Published: April 2020

Humans be created in the image of God.  All people are called to holiness, that is to perfection, just as the Father in heaven is perfect. The theme called to holiness is first placed in the frame of the Basic Diocese of Surabaya which deals with the great theme of the Disciples of Christ. The theme of holiness contains elements about:  what, when, where, who, why and how. The Kipling method or the 5W-1H method helps the writer in describing this holiness theme. Being called to holiness in context has the same meaning as being called to be holy. Holiness itself has a charge as perfect love. Holiness and love are two inseparable things, because God is both Holy and Love. Human union with God is the essence of holiness. Holiness has a relationship with the perfection of love, so holiness cannot be understood separately from one's attitude and actions towards God through his actions towards the poor who suffer. Holiness is a lifestyle that is connected with daily life according to the Beatitues that Jesus conveyed to His disciples.
MANUSIA BERAGAMA MEMAKNAI PENDERITAAN
Authors: Dewantara Agustinus Wisnu
Published: April 2020

Suffering is the reality of religious people, so suffering is an important theme of almost all religions. The negative and depressed color of suffering invites religions to discuss it. Christianity does not see it as fatalistic, but regards suffering as the constitutive reality of all humans. All human beings must suffer, but faith makes humans have a different perspective in reacting to it. This paper wishes to examine the theme of suffering with hermeneutic studies. The research model used in this paper is a qualitative model with as much as possible using hermeneutics by comparing several texts and understanding about suffering, both in Christianity and in other religions. The expected goal of deepening this theme is to find a more comprehensive understanding of suffering as a Christian believer, and finally be able to unite spiritual suffering in the light of Christ who also suffered, so that eventually he also rose with Christ. Life is not to suffer and die silly. Life is also not filled with the solitude of the cross merely, because God created man clearly not to make him suffer.
Preparedness and Lessons Learned from the Novel Coronavirus Disease
Authors: Gudi Sai Krishna , Tiwari Komal Krishna
Published: April 2020

In a short span, a novel coronavirus (SARS-CoV-2) has captured global consciousness by significantly affecting the day-to-day life of humans and emerged as a public health emergency. Undoubtedly, it indicates that lessons learnt from the past epidemics of coronaviruses such as the Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS), had not enough and thus left us ill-prepared to deal with the challenges that COVID-19 pandemic is currently posing. Currently, as a global pandemic, COVID-19 poses major challenges and thus forcing the entire world to lockdown. However, the disease has prepared humankind in facing such outbreaks at present as well as in the future. Besides, it has also taught numerous lessons that are worth considering and implementing to make the world a better reality.
The Viewpoints of Last-Year Dentistry Students of Shahid Beheshti University on the Application of Lasers as an Independent Credit in the Education of General Dentistry
Authors: Mehdipour Masoumeh , Mortazavi Hamed , Bahramian Ayla , Haghighi Enayat Niloofar , AzariMarhabi Saranaz
Published: April 2020

Introduction: Enhancing students’ pragmatic skills as an enabling means brings about changes in their curriculum, which should be reconciled with the students’ educational needs. Thus, this study seeks to examine the viewpoints of last-year dentistry students on the need for the instruction of laser application as an independent credit in the general dentistry curriculum. The findings of this study can help determine the educational priorities of students while providing and compiling their curriculum. Methods: This descriptive study was done on 91 last-year dentistry students of Shahid Beheshti University in a full census manner. The data collection tool was a fieldwork questionnaire, the validity and reliability of which were evaluated. To report the findings, frequency distribution, frequency percentage, and average tableaux were utilized. Results: Amongst the 91 participants, regarding the average figures of value assignment from 1 to 10 to respond to questions, the highest value was assigned to learning the side effects of lasers (7.99 ± 0.01) and the lowest value was assigned to learning about the history of lasers and light physics (4.53 ± 0.47). Conclusion: The findings indicate that students have a positive attitude toward the incorporation of an independent laser credit in their curriculum and thus the necessity of incorporating this credit in their curriculum can be posed.
Bladder Lymphangioma Treated by Holmium Laser: Extremely Rare Case Report
Authors: Moradi Asaad , Kazemzadeh Azad Babak , Fasihi Mahyar , Aliakbari Fereshteh
Published: April 2020

Introduction: Lymphangioma is a sporadic benign tumor of the bladder. It is a congenital disorder and based on the size of lymphatic spaces, it is divided into 3 types of capillary, cavernous, and cystic. Case Report: In this paper, we presented a 40-year-old woman with microscopic hematuria and a normal urinary ultrasound. Urethrocystoscopy showed a flat 4 mm highlighted strawberry-like lesion on the right lateral wall of the bladder. After a cold cup biopsy, the lesion was coagulated by the holmium: YAG (Ho: YAG) laser. Conclusion: In Bladder Lymphangioma Based on the size of the lesion, partial cystectomy or minimally invasive surgeries such as laser modality would be the principal treatment.
AZUFRADO BOLITA, NUEVA VARIEDAD DE FRIJOL PARA EL ESTADO DE JALISCO, MÉXICO
Authors: Lépiz-Ildefonso Rogelio , López-Alcocer José de J. , González-Rivas Carlos , Rodríguez-Guzmán Eduardo
Published: April 2020

El estado de Jalisco destacó en México como productor de frijol (Phaseolus vulgaris L.) en la segunda mitad del siglo pasado, pero en los años de 2000 a 2014 registró una producción significativamente menor, periodo en el que se cosechó un promedio anual de 19,347 ha con una producción de 17,855 t de grano (SIAP, 2015) y se importaron alrededor de 60,000 t por año para cubrir la demanda estatal de frijol.
CARACTERIZACIÓN DEL TAMAÑO DE SEMILLA NODRIZA DE AGUACATE ESTHER Y EL DESARROLLO DE SUS PLÁNTULAS
Authors: Gálvez-Cendegui Luisa , Peñaloza Patricia , Oyanedel Eduardo , Castro Mónica
Published: April 2020

La propagación de aguacate (Persea americana Mill.) mediante las técnicas de etiolación y acodo, requiere semillas nodriza que generen plántulas homogéneas y con determinado diámetro para injertación en el menor tiempo posible. El tamaño de las semillas suele usarse como criterio de selección. Este estudio caracterizó físicamente tres categorías de peso fresco de semilla de aguacate cv. Esther; se determinó la correlación entre el peso fresco del fruto y el peso fresco de la semilla; y se evaluó el efecto del peso fresco de la semilla sobre el tiempo de crecimiento de la plántula. La investigación se llevó a cabo en las temporadas 2009 y 2013. En la temporada 2009 se clasificó a 120 semillas elegidas al azar en tres categorías de peso fresco: pequeño (28 a 43 g), mediano (44 a 59 g) y grande (60 a 75 g), y se compararon sus características físicas (diámetro, perímetro y peso fresco del eje embrionario). En ambas temporadas se pesaron 90 frutos y sus correspondientes semillas, se correlacionaron el peso fresco de los frutos y semillas. En ambas temporadas se separaron por sus pesos 45 semillas en las mismas categorías de peso fresco de la caracterización física, y se sembraron en condiciones de invernadero con calefacción (temperatura media 28 ± 5 ºC). Se midió el tiempo que tardó en emerger la plúmula y el requerido para que los tallos alcanzaran 4.5 mm de diámetro y 20 cm de longitud. Las semillas grandes presentaron mayor diámetro, perímetro y peso fresco del eje embrionario que las pequeñas. Se determinó una correlación positiva significativa entre el tamaño de frutos y semillas en las dos temporadas de evaluación. No hubo efecto del peso fresco de la semilla sobre el tiempo de crecimiento de las plántulas en ambas temporadas.
CONTENIDO DE MINERALES EN SEMILLA DE POBLACIONES NATIVAS DE FRIJOL COMÚN (Phaseolus vulgaris L.)
Authors: Espinoza-García Nancy , Martínez-Martínez Raquel , Chávez-Servia José L. , Vera-Guzmán Araceli M. , Carrillo-Rodríguez José C. , Heredia-García Elena , Velasco-Velasco Vicente A.
Published: April 2020

El frijol común (Phaseolus vulgaris L.) es uno de los productos básicos en la dieta y gastronomía mexicana, no solo por la aportación de proteínas, carbohidratos, vitaminas, fibra y metabolitos secundarios, sino también por una amplia gama de macro y microelementos minerales como Fe y Zn, indispensables para la salud. El objetivo del estudio fue evaluar el contenido de minerales en semilla de una colección de 67 poblaciones nativas de frijol originarias de cuatro regiones de Oaxaca: Valles Centrales, Sierra Norte, Sierra Sur y Mixteca. Las poblaciones se sembraron en San Agustín Amatengo, Oaxaca, en primavera-verano 2014 bajo condiciones de temporal (secano), en un diseño de bloques completos al azar con cuatro repeticiones; a la cosecha se obtuvo una muestra compuesta de 500 g de semilla por accesión. La evaluación del contenido de minerales se hizo mediante espectrofotometría de absorción atómica y ultravioleta visible, con base en estándares de referencia. El análisis de varianza detectó diferencias significativas (P ≤ 0.01) entre y dentro de grupos, en todos los minerales evaluados. Las poblaciones de Valles Centrales y de la Sierra Norte destacaron por la frecuencia de valores altos en macro y micronutrientes. Las evaluaciones de macro y micronutrientes permitieron detectar altos valores en las poblaciones P-06, P-60, P-67, P-73, P-75 y P-79. En contenidos de Fe y Zn, cuyas deficiencias están asociadas con mala nutrición y problemas de salud, las poblaciones sobresalientes fueron P-01, P-03, P-04, P-06 y P-07.
MICROPROPAGACIÓN DE VARIEDADES DE CAÑA DE AZÚCAR CULTIVADAS EN MÉXICO
Authors: Rangel-Estrada S. Eloísa , Hernández-Meneses Eleodoro , Hernández-Arenas Marianguadalupe
Published: April 2020

El cultivo de la caña de azúcar (Saccharum officinarum L.) es uno de los más importantes en México; las 828,609 ha cultivadas en el año 2014 representaron 3.7 % de la superficie nacional cultivable. Las enfermedades causadas por hongos, bacterias, virus y fitoplasmas son uno de los desafíos que enfrenta el cultivo. El objetivo del presente estudio fue desarrollar un sistema de micropropagación de tres variedades de caña de azúcar para obtener plantas sanas para estudios de sanidad. Se desarrolló un sistema de micropropagación clonal de las variedades ITV 92-1424, Laica 82-2220 y Q28-2. La regeneración de plantas se logró vía organogénesis directa a partir de meristemos apicales disecados de plantas madre de seis meses de edad. Los brotes se indujeron en medio de cultivo MS adicionado con concentraciones de 2.5 a 7.5 µM de BA. La multiplicación de brotes se obtuvo con las mismas concentraciones de BA en combinación con 1 µM de AIA. El enraizamiento in vitro de las tres variedades fue eficiente en medio de cultivo MS con las sales a la mitad de la concentración. La aclimatación se obtuvo a las seis semanas con 95 a 98 % de supervivencia en una mezcla de turba y perlita (1:1 v/v).
ANÁLISIS DE LA DIVERSIDAD GENÉTICA DE AGAVES MEZCALEROS DEL CENTRO DE MÉXICO
Authors: Lara-Ávila José P. , Alpuche-Solís Ángel G.
Published: April 2020

En el Altiplano Potosino, un ecosistema árido y semiárido, Agave salmiana Otto Salm Dick ssp. crassispina (Trel Gentry) es una especie utilizada para la recolección de insectos comestibles y para producción de mezcal, bebida alcohólica tradicional con denominación de origen. El aprovechamiento para producción de mezcal de las poblaciones silvestres de Agave salmiana ssp. crassispina carece de un sistema de explotación basado en el conocimiento biológico de la especie. Esto tiene efectos demográficos, y a su vez podría causar el deterioro de sus recursos fitogenéticos y colocar a la especie en situación de riesgo. Este trabajo analizó diversidad genética y estructura poblacional de tres poblaciones silvestres de Agave salmiana ssp. crassispina en San Luis Potosí, México, mediante polimorfismos de longitud de los fragmentos amplificados, AFLP. La evidencia mostró un alto nivel de diversidad genética dentro de las poblaciones analizadas y un bajo nivel de diferenciación entre ellas, probablemente debido a una fragmentación del hábitat producida por actividades antropogénicas. Postulamos que la diversidad genética en las poblaciones analizadas, a pesar de la constante explotación, se origina por el sinergismo entre la polinización cruzada y la actividad de elementos genéticos transponibles. El alto grado de diversidad genética encontrado en las poblaciones silvestres analizadas en San Luis Potosí demuestra la importancia agroecológica de Agave salmiana ssp. crassispina en el Altiplano Mexicano, una región geográfica que abarca casi la mitad del territorio mexicano. Sin embargo, uso descontrolado y manejo inapropiado de las magueyeras silvestres podría arriesgar los recursos fitogenéticos de Agave salmiana ssp. crassispina.
El flipped classroom como herramienta innovadora para el desarrollo del aprendizaje significativo
Authors: Mero Chávez Elvira Judith , Fernando Pazmiño Marcos , San Andres Esthela
Published: April 2020

La investigación tuvo como objetivo determinar la relación entre el flipped classroom y el aprendizaje significativo como  herramienta innovadora en estudiantes universitarios de la Pontificia Universidad Católica del Ecuador, para lo cual se implementó un instrumento en escala tipo Likert de cinco alternativas de repuestas con la finalidad de conocer las percepciones sobre las variables de estudio en 21 estudiantes. Los resultados evidencian una correlación de Pearson en ,088 lo cual al compararse con el rango de correlación, se tiene una correlación positiva muy débil, lo cual implica que aunque el Flipped  classroom incentiva el aprendizaje significativo, debe ser perfeccionado en su aplicación por parte de docentes y estudiantes con la finalidad de generar mayor relación y significancia entre ambas variables. La implementación del Flipped  classroom en la población de investigación determina que es efectivo su aplicación, sin embargo, debe ser profundizado para mejorar su significancia.
Validez predictiva de una batería de pruebas de selección de personal en relación con la duración en el trabajo
Authors: Alegre-Bravo Alberto
Published: April 2020

Este estudio evaluó la capacidad predictiva de una batería de pruebas de selección de una empresa de servicios de personal, para esto se relacionaron los puntajes de dos pruebas empleadas en los procesos de selección (BARSIT y Cuestionario de Personalidad de Eysenck) con la duración en el trabajo de 233 obreros que fueron presentados y contratados en una industria ladrillera. Como hallazgo se observó un alto nivel de rotación del personal obrero, además se constató que el puntaje global del BARSIT predecía significativamente la duración del personal en el empleo. Se concluyó que es necesario que consultoras peruanas que lleven a cabo selección de obreros con estos instrumentos revisen la validez de predictiva antes de su aplicación.
Use of a Visual Programming Language and Mobile Devices to Improves Students' Understanding of Process Control Systems
Authors: Travieso Torres Juan Carlos , Galdámez González Daniel , Rodríguez Travieso Roberto , Rodríguez García Arturo
Published: April 2020

Nuestra principal contribución es la aplicación del lenguaje de programación visual (VPL, de sus siglas en inglés “Visual Programming Language”) y los dispositivos móviles (MD, de sus siglas en inglés “Mobile Devices”) para el aprendizaje de los sistemas de control, lo cual mejoró la comprensión de estudiantes regulares considerados dentro de un diseño cuasiexperimental. El empleo de un ambiente de enseñanza que emplea VPL y MD para abordar los sistemas de control de procesos fue la clave para resolver las dificultades de aprendizaje que tenían el estudiante con el método de enseñanza tradicional, y que perduraban a pesar de ya que se estaba considerando la alineación constructiva entre instrucción, aprendizaje y evaluación, actividades auténticas y un enfoque de aprendizaje basado en el diseño. Los elementos gráficos utilizados por VPL, tomados de una biblioteca hecha de bloques reutilizables, con diferentes formas y colores, facilitan la comprensión de los sistemas de control de procesos. También VPL muestra todo el sistema de control de procesos de un vistazo a través de los diferentes MD utilizados, que fueron computadoras portátiles, tabletas y teléfonos inteligentes. Ayudó que todos estos MD son bien conocidos y fáciles de usar para los estudiantes. La evaluación comparativa del rendimiento de aprendizaje de los estudiantes, con y sin el uso de VPL y MD, mostró la efectividad del rediseño en el modo de enseñanza. Se facilitó el aprendizaje de los sistemas de control de procesos, reduciendo las dificultades de la enseñanza tradicional y mejorando la comprensión de los estudiantes. Además, la autoeficacia de los estudiantes se vio afectada positivamente.
SACRALIZAÇÃO E DEMONIZAÇÃO DA MULHER NO SÉCULO XX: SUA SEXUALIDADE EVIDENCIADA EM PRODUÇÕES INTERSEMIÓTICAS
Authors: Jesus Aline Maria da Conceição de
Published: April 2020

Este artigo traz uma análise de diversas formas em que a mulher foi representada em produções intersemióticas durante o século XX. A pesquisa leva a uma reflexão no tocante à inquestionável emancipação feminina no campo da sexualidade. Contudo, será mostrado, aqui, o que podemos chamar de “efeitos colaterais” do processo de emancipação, o que causou certa demonização à figura feminina. O ser mulher será abordado, portanto, sob duas vertentes: a mulher sacralizada (prototípica) e a mulher demonizada (transgressora). Para tanto, será feita uma análise de um texto, publicado em meados do século XX, por Carlos Drummond de Andrade – Caso do Vestido – e o confrontaremos com outros textos como pinturas, fotografias, filmes e músicas.
Insect Diversity and Association with Plants: A Case Study in Rural Areas of Dhirkot, Azad Kashmir Pakistan
Authors: Faiz Abu ul Hassan , Hassan Mehboob Ul , Bagaturov Mikhail F , Mahmood Majid , Faiz Lariab Zahra , Tariq Ghazal
Published: April 2020

Insects play a vital role for proper functioning of forest ecosystem, including positive roles as pollinators, seed dispersers, genetic linkers and detrimental effects by feeding on and/or killing trees. The present study was conducted to find insect association with plants in rural areas of Dhirkot. The study was conducted from March, 2019 to September, 2019. The sampling was carried out by line transect method. Thirty transects were taken for sampling insects. Sixty-five species of insects in association with 150 plants were recorded.