bluuebunny/crossref_metadata_2025 huggingface dataset:
Upregulation of miR-192-5p inhibits the ELAVL1/PI3Kδ axis and attenuates microvascular endothelial cell proliferation, migration and angiogenesis in diabetic retinopathy
Authors: fu Xiao-Lin , He Fu-Tao , Li Mo-Han , Fu Chun-Yan , Chen Jian-Zhi
Published: July 2022

Background: Diabetic retinopathy (DR) is a common complication of diabetes and a sight threaten among adults. MicroRNAs (miRNAs) serve a key role in DR progression. However, the role and mechanism of miR-192-5p in DR remain unclear. We aim to investigate the effect of miR-192-5p on cell proliferation, migration and angiogenesis in DR. Methods: The expressions of miR-192-5p, ELAVL1 and PI3Kδ in DR samples and human retinal microvascular endothelial cells (HRMECs) were assessed using RT-qPCR. ELAVL1 and PI3Kδ protein levels were evaluated by Western blot. RIP and dual luciferase reporter assays were performed to confirm the miR-192-5p/ELAVL1/PI3Kδ regulatory network. Cell proliferation, migration and angiogenesis were evaluated by CCK8, transwell and tube formation assays. Results: MiR-192-5p was decreased in DR patients and high glucose (HG)-treated HRMECs. In function, overexpressed miR-192-5p suppressed cell proliferation, migration and angiogenesis in HG-treated HRMECs. Mechanically, miR-192-5p directly target ELAVL1 and decreased its expression. We further verified that ELAVL1 bound to PI3Kδ and maintained PI3Kδ mRNA stability. Rescue assays demonstrated that the inhibitive effects of HG-treated HRMECs caused by miR-192-5p upregulation were overturned by overexpressed ELAVL1 or PI3Kδ. Conclusion: MiR-192-5p alleviated DR progression via targeting ELAVL1 and reducing PI3Kδ expression, indicating a biomarker for therapy in DR.
Assessing spermatozoal small ribonucleic acids and their relationship to blastocyst development in idiopathic infertile males
Authors: Hamilton Matthew , Russell Stewart , Menezes Karen , Moskovtsev Sergey , Librach Clifford
Published: July 2022

Clinical testing strategies for diagnosing male factor infertility are limited. A deeper analysis of spermatozoa-derived factors could potentially diagnose some cases of ‘unexplained infertility’. Spermatozoa carry a rich and dynamic profile of small RNAs, which have demonstrated potential developmental importance and association with fertility status. We used next-generation sequencing to correlate sperm small RNA profiles of normozoospermic males (n = 54) with differing blastocyst development rates, when using young donor oocytes. While ribosomal RNAs accounted for the highest number of sequencing reads, transfer RNA fragments of tRNAGly/GCC and tRNAVal-CAC were the most abundant sequences across all sperm samples. A total of 324 small RNAs were differentially expressed between samples with high (n = 18) and low (n = 14) blastocyst rates (p-adj < 0.05). 93 miRNAs were differentially expressed between these groups (p-adj < 0.05). Differentially expressed transfer RNA fragments included: 5’-tRF-Asp-GTC; 5’-tRF-Phe-GAA; and 3’-tRF-Ser-GCA. Differentially expressed miRNAs included: let-7f-2-5p; miR-4755-3p; and miR-92a-3p. This study provides the foundation on which to validate a clinical panel of fertility-related sperm small RNAs, as well as to pursue potential mechanisms through which they alter blastocyst development
Improved Photocatalytic Activity of Gold Nanoparticles Modified Barium Titanate Nanocubes Under Ultraviolet Light Irradiation
Authors: Ali Mohd , Swami Payal , Kumar Ashish , Sharma Keshav , Choudhary Deepika , Guin Debanjan , Tripathi Chandra Shekhar Pati
Published: July 2022

Plasmonic photocatalysts, which combine plasmonic nanoparticles with semiconductor photocatalysts have been proven to significantly improve the overall photocatalysis processs and enhance its efficiency. In the present report, we have synthesized barium titanate (BaTiO 3 ) nanocubes and then we have decorated gold nanoparticles on the surface of barium titanate nanocubes (Au@BaTiO 3 ). The as-synthesized materials were characterized using x-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), and UV-Vis diffuse reflectance spectroscopy (UV-DRS),. We have investigated the ability of the developed nanostructure toward the degradation of organic pollutant rhodamine B in water. A comparison of the performances of BaTiO 3 nanocubes and Au@BaTiO 3 nanocomposite is also presented. The superior photocatalytic performance of Au@BaTiO 3 nanocomposite makes it an attractive candidate for environmental applications to treat water pollution.
An Intuitive Logic for Modeling Non-Local Hidden Variable Problems
Authors: Fox Keith , White Tyler
Published: July 2022

We present a notion of an un-measurable state, which we call an Anti-state and derive a simple and intuitive logic for Anti-states. Anti-states are then used to generate structures, which we call Anti-Structures. Theorems 3.25 and 4.2 yield that Anti-Structures are able to model the context changes (and inconsistencies of measured values), occurring in quantum mechanics, where Kochen and Specker in [5] showed these were un-modellable with local hidden variables. In our Examples 3.28, 4.3, and 4.7 , we show that, respectively, the orthohelium experiment (outlined in Kochen, Specker [5]), wave functions, and entanglement all have Anti-Structure models. Our results give a good contrast to the results of Kochen and Specker [5], and establish a limitation on self reference for partial Boolean algebras. This limitation is not held by Anti-Structures in general, and also does not seem to be a limitation that should be put on our physics. The theorems and examples of this paper lead to a series of questions regarding the expressiveness and a measure of contrivance for models of quantum mechanics.
Empirical analysis of the effect of work stress on employee productivity in the banking industry
Authors: Oseremen Ebhote , Ohiokha Friday , Williams Omokhudu Odiwo , Ohiokha Godwin , Alexander Omowumi Dabor
Published: July 2022

This paper analyzes the effect of workplace stress on employee productivity in the service industry with reference to bankers. The study was carried out to identify the job stress of Nigerian bankers as it will be of interest to the management to evaluate their staff performance. The study used survey design with a sample size of 400 working staff from select banks in Benin City, Edo State; this was premised on the purposive sampling method. The study adopts primary data with the aid of questionnaire, which was administered to respondents to collect data. The data collected were analyzed using regression analysis. The result from the regression analysis indicated that employee workload, role ambiguity, and role conflict were statistically significant with a value of P > 0.05. The value of the Adjusted R2 of 64% reveals that the variability observed in the target variable is explained by the regression model. The study made recommendations that will enhance employee productivity in the banking industry in Nigeria.
A QUÍMICA ANALÍTICA APLICADA AOS ESTUDOS DE PIGMENTOS RUPESTRES: UMA REVISÃO
Authors: Farias Filho Benedito , Lage Maria Conceição , do Nascimento Ana Luisa , Vieira Iasmin Maria , de Almeida Danyel Douglas , de Barros Wilkins
Published: July 2022

Instrumental advances have been employed in the study of archeological remains such as prehistoric rupestrians paintings with the objective of chemically characterizing them in order to reconstruct the cultural technologies of a prehistoric human group and/or to support conservation science studies. The analytical techniques most commonly used in archaeometric research are non-destructive or semi-destructive and preferably portable to preserve the integrity of the rupestrians paintings. They include X-ray Fluorescence Spectrometry (XRF), Scanning Electron Microscopy coupled with Energy Dispersive Spectroscopy (SEM/EDS), Raman spectroscopy, X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Laser-induced Breakdown Spectroscopy (LIBS), and the many techniques with emerging applications such as Mössbauer Spectroscopy, X-ray Absorption Near Edge Structures (XANES), Particle Induced X-ray Emission Spectrometry (PIXE) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA ICP-MS). Therefore, this paper presents a review of the literature on the development of chemical strategies employed in the study of rock art, focusing mainly on the critical evaluation of analytical techniques used, limitations, challenges and the perspectives within this area of study
The Synthesis of Triamine Group Modified Silica Hybrid Material Coated on Muara Kencan Iron Sand for Hg (II) Adsorption
Authors: Prasdiantika Ricka , Pratama Dony Allan , Zulaidah Agustien , Apriyanti Eny , Suharman Suharman
Published: July 2022

Hg metal was toxic and harmful to the environment because it does not biodegradation, can accumulate in living things, and pollute waters. One method that can be used was adsorption by inorganic-organic hybrid materials. This study aims to synthesize a triamine group modified silica hybrid material coated on iron sand or Magnetic Materials@Silica@Triamine (MM@SiO2@TA) to adsorb Hg(II) metal ions. The study began with the preparation of the iron sand of Muara Kencan Beach using magnets, washing using a solution of 1 M HCl and 0.5 M HF, and coating the material using sodium silica (SiO 25.5-28.5%) modified by a 99% triamine group with co-precipitation. The XRF characterization results showed that the magnetic material of the iron sand of Muara Kencan Beach has an iron oxide (magnetite) content of 73.31%. The iron oxide content increased after washing with HCl solution to 79.12% and HF solution to 81.81%. The results of FTIR, XRD, and TEM characterization showed that the MM@SiO2@TA was successfully synthesized with a size of 63.43 nm. The MM@SiO2@TA was tested to adsorb metal ion Hg(II) at a concentration of 100 ppm, pH 6, and a contact time of 1 hour. The AAS results showed that MM@SiO2@TA could adsorb metal ions Hg(II) as much as 60.82 ppm or 60.82%.
Extracellular Biosynthesis of Gold and Silver Nanoparticles using Fungal Extracts
Authors: Dorjee Lham , Meshram Shweta , Verma Ankita
Published: July 2022

Nanoscience has opened new vistas to manage phytopathogens, improve
crop productivity by the development of new varieties, and control infectious diseases
in humans. Silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) are highly
acclaimed for their wide potential application in various fields. Chemical and physical
methods of synthesis of AgNPs and AuNPs are widely used; however, such methods
possess numerous setbacks, such as the production of toxic residues and indispensable
need for high energy. Biosynthesis of nanoparticles is a cost-effective and
environmentally friendly method. A plethora of species of plant, bacteria, fungi, etc. is
available with potential biosynthesis ability. Fungi are a highly preferred organism
owing to the ability to secrete a large number of extracellular enzymes, metal toxicity
tolerance and bioaccumulation ability, and ease of handling of its biomass.
Extracellular enzymes act both as reducing as well as capping agents. Two different
methods are used by fungi for synthesis viz., intercellular and extracellular synthesis.
Extracellular synthesis is preferred over intercellular as it bypasses several down
streaming processes. During the reduction process, the metal ions (Ag2+ and Au3+) are
converted to an elemental state (Ag0
and Au0
) which is in the nano range. Due to their
large surface-to-volume ratio and other properties, they become very effective against
other pathogens. There is an excellent prospect of the use of nanoparticles in the field
of agriculture and health and nanoparticles synthesized using a biological method
involving fungi could be a boon.
Role of Fungal Nanotechnology in Bioremediation of Heavy Metals
Authors: Álvarez Sandra Pérez , Licón Trillo Lorena Patricia , Héctor Ardisana Eduardo Fidel , Pérez Ana Elsi Ulloa , González Vega María Esther
Published: July 2022

The main sources of soil contamination are anthropogenic activities, which
result in the accumulation of contaminants that can reach levels considered toxic. One
of the main soils contaminants these days is heavy metals. These metals are
bioaccumulative and are not biodegradable, so many of them are toxic when they
exceed certain limits. Heavy metals, when accumulated in the tissues of plants, animals
and humans, induce severe symptoms that can even cause death. Bioremediation is a
widely used technology to decrease the levels of these metals in soils and waters using
microorganisms, among which fungi stand out. Nanotechnology currently applies the
bases of bioremediation using fungi at the nanoparticle level to treat soils contaminated
with heavy metals. This chapter will discuss novel aspects related to heavy metals in
modern agriculture, bioremediation and nanotechnology using fungi with
bioremediation purposes.
Role of Fungi in Biofuel Production Chain
Authors: Agrawal Renuka , Maheshwari Ankur
Published: July 2022

The demand of fuels as a source of energy for various operations is
increasing daily. This has led to increased demand of fossil fuels, particularly by
transportation and industrial sectors. There are multiple problems related to
conventional fossil fuels like firstly, they are non-renewable resources with limited
reserves. Secondly, fossil fuels pose serious environmental and health issues. Fossil
fuels are one of the leading sources of emission of atmospheric greenhouse gases
(GHG), resulting in global warming and thus climate change. These limitations and
adverse effects of the use of fossil fuels have warranted scientists and policymakers to
look for renewable and greener alternatives such as biofuels. Based on the type of
feedstock used, biofuels are classified as first-generation, second-generation and third generation. First-generation biofuels are based on edible resources which are already
scanty. This has led to increased interest in second and third-generation biofuels. The
agricultural waste and inedible crops constituting lignocellulosic materials are
important second-generation biofuel feedstocks. The second-generation feedstocks can
be a great alternative to conventional fossil fuels, but there are a few limitations, such
as the cost and efficiency of production. Currently, scientists are looking at the role of
fungi and utilization of various fungal enzymes in the hydrolysis of the lignocellulosic
substrates for efficient and cost-effective production of biofuels. Nanomaterials have
the ability for the better utilization of enzymes, biofuels, biodiesels and other microbial
fuels. Therefore, nanotechnology can be utilized to address the challenges through
various mechanisms and processes. This chapter is an attempt to focus on the role of
fungi and fungal enzymes for better utilization of feedstock and sustainable production
of renewable, cost-effective, environment-friendly biofuels.
THE INFLUENCE OF THE SENSORY STIMULI ASPECTS FOR THE EFFICIENT USE OF URBAN SQUARES IN IRAQ
Authors: Ali Omar Hussein , Ja’afar Nor Haslina , Harun Nor Zalina , Mat Sulaiman Mohd Khairul Azhar
Published: July 2022

This study aims to examine the impact of user sensory stimuli aspects (comfort, passive and active engagements, relaxation, and discovery) on the efficient use of urban squares in Erbil, Iraq, through public interaction. A questionnaire survey (298 respondents) was employed to collect users’ opinions and was validated through expert interviews (13 interviewees) and field observations. PLS-SEM was used as the research method in this study to analyse the influence structure of the 298 respondents. The predicted model of the research can contribute to the body of knowledge among academics and practitioners. Findings revealed that the aspects of sensory stimuli have a significant influence on the efficient use of urban squares. For the efficient use of urban squares, comfort showed the greatest influence on social interaction.
Невзаимное обратное рассеяние волн миллиметрового диапазона кристаллами ниобата лития при возбуждении в них ультразвуковых колебаний
Authors: Суторихин В.А. , Малютин Н.Д. , Поздняков В.С.
Published: July 2022

The results of experimental studies of millimeter waves backscattering with a frequency of 33 GHz by lithium niobate crystals using an installation based on a Doppler radar (microwave sensor) are presented. The measurements were carried out when ultrasonic vibrations with a frequency of 50.3 kHz were excited in the crystals and in their absence. It is found that due to elastic ultrasonic vibrations in the crystals, the phase modulation of the reflected wave from the crystal-dielectric-metal system occurs, as a result of which the effect of non-reciprocity of backscattering occurs. Detection of the phase difference between the voltage of the backscattering wave and the voltage of the incident (radiated) wave gave a useful signal level up to 50 dB higher than the noise level of the receiving and transmitting path of the microwave sensor. We established experimentally that the amplitude and frequency of the maximum of the envelope of the backscattering spectral components depends on the angle between the crystal symmetry axes and the vector polarization of the incident electromagnetic wave and on the orientation of the crystal in space. These measurements provide qualitative information about the piezoelectric properties of the crystal material and the presence of elastic waves.
Влияние адсорбции атомов натрия на электронную структуру золотой пленки
Authors: Дементьев П.А. , Дементьева Е.В. , Лапушкин М.Н. , Смирнов Д.А. , Тимошнев С.Н.
Published: July 2022

The electronic structure of a gold film deposited on W was studied during the adsorption of sodium atoms. An analysis of the photoemission spectra from the valence band and core levels of Au 4f and Na 2p upon synchrotron excitation in the photon energy range of 80–600 eV showed that Na adsorption leads to the formation of NaxAuy intermetallic compounds of various stoichiometry under the Na monolayer.
Gamification to Support Adherence to a Therapeutic Ambylopia Treatment for Children: Retrospective Study Using a Focal Ambient Visual Acuity Stimulation Game
Authors: Bocqué Catheline , Wang Jingyun , Rickmann Annekatrin , Julich-Haertel Henrike , Kaempf Uwe , Januschowski Kai
Published: July 2022

Background

The gold standard treatment for amblyopia is patching the better eye. Improvement of visual acuity in the amblyopic eye is significantly impacted by the adherence to the patching therapy. It is known that the overall adherence is rather low.

Objective

This retrospective study evaluated whether an updated version of attention-binding digital therapeutic games based on the principle of focal ambient visual acuity stimulation (FAVAS) would result in improved patient adherence in 4- to 16-year-old patients with amblyopia associated with anisometropia or strabismus.

Methods

We analyzed electronically pseudonymized recorded data from patients treated with occlusion therapy and FAVAS therapeutic games. One group used an older version (2015) and the other group used a newer version (2020) that provided more attractive therapeutic games with tablet computer functionality. Objective adherence was calculated by comparing the number of minutes using the therapeutic games as monitored in the automatized logbook versus the prescribed number of minutes for using the games.

Results

Children in group 2015 (n=138) spent on average 2009.3 (SD 1372.1; range 36-5556) minutes using FAVAS; children in group 2020 (n=129) spent on average 2651.2 (SD 1557.1; range 38-5672) minutes using the newer version. Group 2020 spent on average 641.9 more minutes on FAVAS than group 2015 (t255.49=3.56, P<.001, d=0.45; 95% CI 0.69-0.20). Although patient adherence was very variable, compared to the 55.0% (SD 29.4%) in group 2015, it significantly improved up to 68.5% (SD 33.7%) in group 2020 (t254.38=3.48, P=.001, d=0.44; 95% CI 0.68-0.19).

Conclusions

FAVAS 2020, with improved gamification aspect as well as tablet computer functionality, increased adherence significantly compared to the earlier version of FAVAS 2015, indicating that FAVAS 2020 could be an effective approach to support adherence to amblyopia treatment.

Trial Registration

German Clinical Trials Register (DRKS) DRKS00017633; https://drks.de/search/de/trial/DRKS00017633
Validation of the Efficient Online MCI Screening System (EOmciSS) for Screening of Mild Cognitive Impairment Among Community-dwelling Older Adults (Preprint)
Authors: Chan Chetwyn C.H. , Lee Tatia M.C. , Chen Lidian , Wu Jingsong , Tu Jingnan , Liu Zhizhen , Cao Lei , He Youze , Huang Jia , Tao Jing , Wong Mabel N. K
Published: July 2022

BACKGROUND

Early detection of mild cognitive impairment (MCI) symptoms is an important step to the subsequent medical diagnostic and intervention. We developed a new screening test called the Efficient Online MCI Screening System (EOmciSS) for use in community-dwelling older adults. It is a self-paced rapid cognitive test to be completed within 10 minutes on tablets or mobile phones in homes or elderly centers.

OBJECTIVE

This study was aimed to test the validity of the EOmciSS for identifying community-dwelling older adults with MCI risks.

METHODS

The participants (N=827) completed the EOmciSS and other criterion instruments. The evidence of the psychometric properties included subscale item difficulty, discriminative index, internal consistency, and construct validity. We further tested the between-group discrimination using cross-validation method on the labelled MCI and normal cognitive groups.

RESULTS

Three accuracy and one reaction time factors explained the structure of the 20 item factors. Difficulty levels of the item factors in the accuracy factors, namely Trail Making, Clock Drawing and Cube Copying, and Delayed Recall were 0.63 to 0.99; while those of the reaction time factor were 0.77 to 0.95. Discriminative indices of the medium to high difficulty item factors were ranged from 0.39 to 0.97. The internal consistency indices (Cronbach’s Alpha) ranged from 0.41 (for few item factor) to 0.96. Training dataset indicated nine item factors as the significant predictors for the MCI versus NC classification. Presence of depressive symptoms was identified as a significant factor influencing participants’ performance, which was an integral part of the test system. Age, education level and proficiency level of using electronic device of the participants did not significantly influence their scores and classification. Application of the MCI/NC cut off score (7.90 out of 9,67) to the validation dataset yielded an AUC value of 0.912 (P < .001) (95% C.I. 0.868-0.955). The sensitivity and specificity were 84.9% and 85.1% respectively, and the Youden index was 0.70.

CONCLUSIONS

The EOmciSS shows satisfactory evidence on its validity and reliability for identifying older adults with significant risks of MCI. The user-interface, online operation and self-paced format allow the test system to be operated by older adult users or their caregivers in different community settings such as home and elderly centers. Depressive symptoms, found influencing the test performances and hence the MCI risks, should be an integral part in future MCI screening system.

CLINICALTRIAL

Chinese Clinical Trial Registry ChiCTR2000039411
Deepfake Pornografi: Tren Kekerasan Gender Berbasis Online (KGBO) Di Era Pandemi Covid-19
Authors: Kasita Ivana Dewi
Published: July 2022

The development of artificial intelligence (AI) sophistication triggered a specific algorithm called deepfake technology. The existence of this technology provides convenience for workers of the television and film industry during the Covid-19 pandemic. But on the other hand, deepfake technology is used to disseminate pornographic content until cases of Online Gender Based Violence (OGBV) during the Covid-19 pandemic increase dramatically. based on the data, this study aims to describe what exactly are the dangers of deepfake technology in the spread of OGBV and how the government's efforts in dealing with pornography deepfake cases. The research method used is a method of literature study with qualitative descriptive analysis. The results showed that the dangers of deepfake pornography are various, such as victims experiencing trauma, loss of self-esteem, dignity and various forms of stigma obtained from social environments that do not support victims to get justice. Therefore, in the face of the development of deepfake technology the government can make efforts by strengthening regulations related to the protection of personal data, handling, recovery of victims of gender violence due to deepfake pornography, and conducting education both law enforcement officials and the public regarding the dangers of deepfake technology.
Determination of the Application Rate of Conventional Compost Integrated with Chemical Fertilizer on Maize (Zia Maize) Yield in Dugda District of East Shoa Zone, Oromia
Authors: Kitila Kasahun , Chala Abay , Workina Mekonnen
Published: July 2022

Integrated soil fertility management is the application of inorganic in combination with organic fertilizer to maintain soil fertility and improve crop yield. A study was conducted in East Shoa Zone, Dugda District on farmers' fields to determine the combined effects of conventional compost as organic fertilizer and NPS as inorganic fertilizer on soil chemical properties and maize production. There were five treatments: Recommended rate of inorganic fertilizer, 100, 75, 50 and 25% equivalent level of compost for nitrogen fertilizer. Recommended level of 69 P2O5/ha were equally applied at all treatments. The experiment was laid out in RCBD design with three replications. The analysis of variance showed no significant differences (P > 0.05) in maize grain yield response. However, the highest maize grain yield (8728.20 kg ha-1) was obtained from treatment two that received 100% equivalent compost for nitrogen fertilizer and the lowest (8325 kg ha-1) was obtained from treatment one where recommended chemical fertilizer alone was applied. Composite Soil samples were also collected before compost application and after harvesting to evaluate the residual effect of compost on soil physiochemical properties. Accordingly, laboratory analysis showed no significance differences (P > 0.05) in total N, available P, soil organic carbon and CEC. However, analysis of variance of post-harvest composite soil samples indicated significant differences on soil available P, OC, TN and CEC as compared to initial soil sample. On the other hand, partial budget analysis was done to determine economically optimum rate of compost integrated with chemical fertilizer. Accordingly, the highest net benefit (126527 Eth. Birr ha-1) was recorded for treatment two where 100% compost (4.6t/ha) plus 150kg/ha NPS fertilizers were applied. The highest marginal rate of return (146) was also obtained from the same treatment. Therefore, the present study showed that combined application of organic and NPS fertilizer enhanced maize productivity and soil fertility status in the study area. Hence combined fertilizer application of 4.6 t ha1 conventional compost integrated with 150 kg ha-1 NPS improved maize productivity and soil chemical properties, and recommended for the study area and similar agro-ecology.
The Legal Effectiveness of the National Solid Waste Policy in Brazil Regarding Recycling Activities of Civil Construction Waste
Authors: Costa Railson Gomes da , Soares Aldair Jône Almeida , Rivoiro Marcus Vinicius , Xavier Delson Fernando Barcellos , Sodré Jéferson Araújo , Silva Jamylle Maria Araújo
Published: July 2022

This research aims to analyze the situation of the National Solid Waste Policy (PNRS) with the norms and guidelines for the recycling activities of civil construction waste, established in the country through Law 12.305/2010. The solid waste recycling policy, within only a decade, has been changing, modernizing and increasingly expanding its space in construction companies. Additionally, the increase in environmental pollution and its consequences has led society to reposition itself on the subject. The excessive generation of waste and its irregular disposal in most Brazilian cities raises the questions: Have environmental protection laws and the PNRS been effective in preventing, managing and controlling the environment? One of the great challenges in choosing this topic is that we live in a society that still does not properly value recycling in its various species. Whether for cultural reasons or for lack of proper waste valuation. In this perspective, we sought to present the legal tools that guarantee development with sustainability, thus guaranteeing environmental preservation for present and future generations in accordance with the provisions of the Federal Constitution of 1988. As for its nature, this is a qualitative research, as for its objectives it is classified as exploratory and was carried out through bibliographic research, with researches carried out on specialized sites that were duly referred to at the end of this study
Waste Management in Brazil and Implications of the Most Applied Techniques in The Management Process
Authors: Viana Claudenilson dos Santos , Freitas Flávio Augusto de , Silva Edson Pablo da
Published: July 2022

Objective: this work aimed to investigate aspects of waste generation in Brazil and the main waste management techniques that are reported in the literature. Methodology: the methodology used comprises a literature review, where recent works were used in order to expose the current scenario of the Brazilian context, as well as waste management techniques used more widely. Results and Discussion: through the information collected, it was possible to note that Brazil has a high generation of waste, with about 216 tons per day throughout the national territory. In Brazil, the most used form of management refers to the use of sanitary landfills, however, landfills require complex management, in addition to a grandiose strip of land. In this way, solutions such as incineration can contribute to waste management both in Brazil and in the world, since it considerably reduces the volume of wa-ste. Other alternatives reported in this study include bioremediation, recycling and composting. It is also noteworthy that re-cycling, despite being a highly effective method, leads to severe contamination problems, which makes the plants need to have strict controls for cleaning and care, avoiding the contamination of employees. Final considerations: several measures can be adopted, but they must consider the context in which the cities and the respective State are located, in order to obtain lower costs and greater efficiency.
Rainbow Trout Farming in İmranlı Dam Lake (Turkey): Knowledge, Constraints and Opportunities
Authors: Dirican Seher
Published: July 2022

The Covid-19 pandemic process has clearly demonstrated how important it is to ensure self-sufficiency and sustainability, especially in the production of agricultural and animal products. One of the inland water ecosystems that are important in terms of aquaculture production is dam lakes. In recent years, rainbow trout farming in dam lakes has been widely practiced in Turkey. One of the dam lakes where rainbow trout is grown in cages is İmranlı Dam Lake. The dam lake was built on the Kızılırmak River in Sivas province between 1994-2002. It is very valuable for the country's economy to use the waters of the İmranlı Dam Lake in the cultivation of rainbow trout in cages together with agricultural irrigation. The waters of the İmranlı Dam Lake give an important power to both agriculture and rainbow trout farming. In the İmranlı Dam Lake, 950 tons of rainbow trout and Turkish salmon are grown annually in net cages. The surface of the İmranlı Dam Lake, which has a water capacity of 62.5 million cubic meters and an area of 6.5 square kilometers, located within the borders of İmranlı district, where the air temperature drops to about 25-30 degrees below zero, is completely frozen in the winter season with the effect of cold weather every year. In the İmranlı Dam Lake, which is used to irrigate approximately 11.220 hectares of agricultural land in the summer months and where cage fishing is also carried out, the fish cages are under the ice mass. Rainbow trout can be fed by breaking the ice on the cages. Rainbow trout, which are grown in difficult conditions in the İmranlı Dam Lake, are highly preferred due to both the air and the coldness of the water. The rainbow trout farm, which was established in the İmranlı Dam Lake in 2010, has reached an extremely important position in terms of modern production infrastructure, quality and meeting the animal protein needs of people.
Revisión sobre las tecnologías emergentes no térmicas para el procesamiento de alimentos
Authors: Caballero-Figueroa Esmeralda , Terrés Eduardo , Hernández-Hernández Hilda María , Escamilla-García Monserrat
Published: July 2022

En la actualidad la inocuidad de los alimentos es el principal objetivo de la industria alimentaria sin dejar de lado su calidad sensorial y nutricional, por esto las tecnologías emergentes no térmicas se presentan como una alternativa a las convencionales con el fin de subsanar, evitar o disminuir la modificación de la textura, el color y el desarrollo de sabores indeseables generados al tratar térmicamente a los alimentos. En el presente trabajo se describen las nuevas tecnologías, entre ellas, la alta presión hidrostática, los pulsos eléctricos, el ultrasonido de alta frecuencia, la radiación ionizante y el plasma en frío, así como los mecanismos de inactivación de los microorganismos; además de una sinopsis de las ventajas y desventajas de su aplicación, finalmente se presentan las áreas de oportunidad para su desarrollo industrial y empleo permanente.
Edouard Charles Ernest Duvillier: the chemistry of oxoacids
Authors: Wisniak Jaime
Published: July 2022

Edouard Duvillier (1851-1904) fue un químico francés que estudió en particular la química de los oxoácidos y sus derivados. Este trabajo llevó a la síntesis de numerosos compuestos nuevos y determinación de sus propiedades físicas y químicas, entre ellos, los ácidos metiloxobutírico, n-etiloxobutírico, isooxovalérico, tioisovalérico, y tiooxobutírico, sus derivados, metil-, etil-, y fenilamido, and la etiloxobutiramida. Duvillier reportó la síntesis, composición y propiedades de una variedad de derivados de productos químicos pertenecientes a los grupos de la creatina y creatinina, entre ellos, a-oxobutirocyamina y cyamidina. También desarrolló un método eficiente para separar las tres aminas pertenecientes al mismo radical alcohólico.

 
Escritura de explicaciones a partir de experimentos en las clases de química
Authors: Bizzio Maria de los Ángeles , Guirado Ana María , Maturano Carla Inés
Published: July 2022

Para que los estudiantes aprendan a escribir según los modos típicos de cada disciplina es necesario generar propuestas áulicas orientadas al desarrollo de una alfabetización específica en cada asignatura. Esto involucraría a los docentes disciplinares como mediadores para favorecer el desarrollo de prácticas escritas complejas. En este trabajo se presenta una experiencia áulica, en la que la docente de Química en colaboración con un equipo interdisciplinario asume un rol mediador en la construcción de explicaciones vinculadas con experimentos en los que ocurren diversos fenómenos a partir de una reacción química. Se pidió la escritura de explicaciones promoviendo interacciones en el aula que facilitaran la tarea. La metodología utilizada consistió en un taller en el que estudiantes de educación secundaria de una escuela de San Juan (Argentina) realizaron experimentos y produjeron explicaciones escritas. Los resultados muestran que inicialmente escribieron recuentos del procedimiento y/o explicaciones incompletas. Ante estas dificultades, las herramientas brindadas en la interacción áulica los orientaron en la construcción colaborativa de nuevas explicaciones. La reflexión sobre las propias producciones escritas permitió un replanteo y una reescritura con mejoras en relación con el contenido de Química y la estructura de las explicaciones.

 

 
Caracterización sobre explicaciones de docentes en servicio acerca de la noción científica de disolución
Authors: Quintanilla-Gatica Mario Roberto , Mercado Baeza Marcelo Eduardo
Published: July 2022

En este trabajo presentamos y discutimos las directrices teóricas y metodológicas de una experiencia experimental con profesorado de ciencias en ejercicio de diferentes establecimientos educacionales de Chile, que tuvo por finalidad identificar y caracterizar las explicaciones sobre el modelo de disolución a partir de la elaboración de narrativas personales. Ello durante un curso de desarrollo profesional docente en el que se propició la reflexión sobre la relevancia del lenguaje en la interpretación de los fenómenos experimentales. Los resultados dejan en evidencia la coexistencia de tipologías diversas de explicación científica en tres niveles: el microscópico, el macroscópico y el simbólico, que se expresa en la emergencia de cuatro perfiles explicativos sobre el fenómeno de la disolución., lo que se debería en parte a la diversidad del profesorado que participó en el estudio, conocimiento restringido de la relevancia del lenguaje para comunicar ideas  científicas y un acentuado énfasis en los procesos descriptivos y microscópicos acerca de las disoluciones.
The deuteration of organic compounds as a tool to teach chemistry
Authors: Rosales Martínez Antonio
Published: July 2022

The deuteration of organic compounds has contributed to several fields of scientific knowledge, such as analytical, medicinal, organic chemistry, and polymer science. In this manuscript the concepts of kinetic isotopic effects, synthesis of deuterated compounds, and principal applications of deuteration are summarized to obtain a brief article that serves to teach multidisciplinary sciences to undergraduate chemists.

 
Fake Review Detection on Using Machine Learning on Online Product Selling Platform
Authors: L Jayalakshmi
Published: July 2022

Abstract: The increasing popularity of online review systems motivates malevolent intent in competing sellers and service providers to manipulate consumers by fabricating product/service reviews. Immoral actors use Sybil accounts, Bot farms, and purchase authentic accounts to promote products and vilify competitors. Facing the continuous advancement of review spamming techniques, more research work is been carried out to assess the approaches explored to date to combat fake reviews, and regroup to define new ones. Fake reviews detection attracts many researchers’ attention due to the negative impacts on the society. Most existing fake reviews detection approaches mainly focus on semantic analysis of review’s contents. This project is aimed at fake review detection in online platform, to prevent damage due to deceptive reviews.We propose a Novel Fake Reviews Detection based on Logistic Regression technique
Analyzing Consensus via Making Multicriteria Decision Analysis Methodology
Authors: Anand Prakhar
Published: July 2022

Abstract: Purpose – This paper takes a cautionary stance to the impact of marketing mix on customer satisfaction, via a case study deriving consensus rankings for benchmarking on selected retail stores in Malaysia. Design/methodology/approach – ELECTRE I model is used in deriving consensus rankings via multicriteria decision making method for benchmarking base on the marketing mix model 4Ps. Descriptive analysis is used to analyze the best practice among the four marketing tactics. Findings – Outranking methods in consequence constitute a strong base on which to found the entire structure of the behavioral theory of benchmarking applied to development of marketing strategy. Research limitations/implications – This study has looked only at a limited part of the puzzle of how consumer satisfaction translates into behavioral outcomes. Practical implications – The study provides managers with guidance on how to generate rough outline of potential marketing activities that can be used to take advantage of capabilities and convert weaknesses and threats. Originality/value – This paper interestingly portrays the effective usage of multicriteria decision making and ranking method to help marketing manager predict their marketing trend
A Comparative Study on Seismic Analysis of Multistorey RC Building Connected with Different Dampers and Without Dampers
Authors: Gowda Tejas
Published: July 2022

Abstract: Due to growing in huge population and hasty urbanization, in modern era high rise building construction is increasing more than ancient days, high rise buildings are basically subjected to lateral loads or forces such as wind load and earthquake loads, seismic damper is the one of the device used to reduce storey responses in high rise building era,the work is made to comparative study on seismic behavior of multi storey rc building connected without and with dampers G+15 building of regular building plan of 34 m X 24 m is considered for analysis ETABS software is used for modeling and analysis of structure, the comparison made on storey responses like storey displacement, storey drift, storey shear, modal time period and frequency
Etrog: Ethereum Based Social Media
Authors: R Sumukh
Published: July 2022

Abstract: Today’s OSNs are controlled by major companies such as Facebook, Instagram and Twitter who have complete control over user data. These companies store the user data in a centralized server which.This has several issues. For example, if their servers go down there no backup copies might be available and the chances of getting hacked are more in a centralized architecture. These companies can also censor the contents and post targeted ads in the user feeds. To overcome the drawbacks of the centralized OSNs, in this paper we are implementing a decentralized social media with the help of Ethereum smart contracts. Here, the data is not stored in a centralized server and the major disadvantages of centralized servers can be overcome by this approach.
A Review on Behavioural Similarity Between Marshall Stability and Indirect Tensile Strength Values for D.B.M. using VG-30 & VG-40 Grade Binder
Authors: Gupta Subrat
Published: July 2022

Abstract: Pavement engineers are much concerned about making bituminous layers resistant to cracking, distortion, displacement, rutting, and fatigue. Hence behaviour of bituminous layers under compressive and tensile stress is important in pavement applications. The Marshall Stability test is used to assess the compressive properties and Indirect Tensile Strength (ITS) test is used to assess the tensile properties of the bituminous mix. Many research studies have been done on Marshall Stability and ITS individually; however, a combination has not been tried yet. In this proposal, an effort has been made to study the behavioural similarity between them. Further research in this field will also ascertain correlation between Marshall Stability values and ITS values for DBM at different binder contents and for different binder grades (VG-30 and VG-40) and will interpret regarding suitability of these tests in the mix design
Vehicular Safety Model: A Phase-Wise Vehicular Catastrophe Prevention Model
Authors: Xavier Stephen Danny Leo
Published: July 2022

Abstract: Driver drowsiness is one of the major causes of road accidents. Furthermore the existing technologies to detect drowsiness in a driver lack in terms of classifying the stages of drowsiness in a driver, which fails to prevent drowsiness at its initial stages. The Proposed system detects drowsiness in a driver through stage-wise classification. Hence drowsiness is detected in three stages. On stage one, the system rings a vocal alert to the driver. On Stage two, the system sounds an alert and on stage three, the system sends a whats app message, an email to the given emergency email-id and the location of the driver to the supporting android application. The system also consists of theft prevention system, where when activated the system performs facial recognition on the driver. If the driver is a registered driver, the system continues to monitor, else the system sends a notification to the driver on the supporting mobile application.
Utilizing the Refrigerants R134a and Mixed Nano- Particle Refrigerant in a Comparison Study and Analysis of a Vapour Compression Refrigeration System
Authors: Pawar Akash
Published: July 2022

Abstract: Fundamentally, a vapour compression refrigeration system (VCRS) is a device that absorbs heat from a lower internal heat level and rejects it to the body or environment at a higher temperature in exchange for some external work being done on it. It is widely used everywhere, from commercial use in homes and stores to extensive scope and significant cooling loads in companies. They vary in size as well, but only to the extent necessary for cooling. to operate with top blowers, provide large cooling loads with minimal energy or force consumption Manyanalysts working in the subject of warm designing have always been interested in it. The area of refrigeration is similarly changing as a result of the introduction of nanotechnology in all research and technological fields. not anymore left clean of it. It has been observed that severalmetals and their combinations have high heat dissipation limits, which formed the basis for their use in refrigeration. Numerous nano size metal mixes have been tested with numerous refrigerants, and suitable fixes have been discovered to ensure an increased VCRS Coefficient of Execution. In this endeavour as well, a unique mixture is used, and research on VCRS will be conducted. Here, the task of finding the best fixations is completed afterthe mixing of metalCuO nanoparticles with the refrigerant R134a is complete.
Recommendation of Agricultural Crop Based on Productivity and Season Using Machine Learning
Authors: D M Sowmya
Published: July 2022

Abstract: Many states faces uncertainty in agriculture which decreases its production. With more population and area, more productivity should be achieved but it cannot be reached. Agricultural factors and parameters make the data to get insights about the Agri-facts. Growth of IT world drives some highlights in Agriculture Sciences to help farmers with good agricultural information. The common difficulty present among the Indian farmers are they don’t opt for the proper crop based on their soil necessities. Because of this productivity is affected. This provides a farmer with sort of options of crops which will be cultivated. Agricultural issues like crop prediction, rotation, water requirement, fertilizer requirement and protection can be solved. To implement such an approach, crops are recommended based on its climatic factors and quantity. Data Analytics paves a way to evolve useful extraction from agricultural database. Crop Dataset has been analyzed and recommendation of crops is done based on productivity and season.
Mental Health Status Detection through Handwriting Analysis
Authors: M G Prof. Vinay
Published: July 2022

Abstract: Around the turn of 20th century, scientists began stirring up what would ultimately become a world changing revolution. This is where Machine learning and Artificial intelligence came into being. We have come so far that now we can use the same technologies to check the mental health status of a person. We have come so far into technological advancement that we are able to use certain aspects of handwriting to predict the mental status of a person. The implementation of it includes checking the slanting of the pen, thickness of the wording and various other features. The project is said to use five classes depression, anxiety, stress, panic and normal. This project will prove to be beneficial to those who are in critical need of therapy but don't have enough money to fund it and the project will help diagnose the mental illness. Now many scientists believe that we are on the cusp of a second revolution as machine learning as grown so big. They predict it will transform the society yet again, this time through the vital importance of changing the human intelligence to machine intelligence.