bluuebunny/crossref_metadata_2025 huggingface dataset:
CHEMICAL PROFILE AND ANTIOXIDANT ACTIVITY OF GEOPROPOLIS FROM Melipona subnitida COLLECTED INSIDE AND OUTSIDE THE NEST
Authors: Ferreira Joselena , Negri Giuseppina , Salatino Maria Luiza , Message Dejair , Salatino Antonio
Published: July 2022

Melipona subnitida (“jandaíra”) is a species of stingless bee endemic to the Caatinga, a dry forest in the northeastern Brazilian semiarid. Propolis is a product containing beeswax and plant resin. It contains compounds that can be able to prevent health problems by protecting cells against damage by oxidative agents. M. subnitida produces geopropolis, a mixture of propolis with soil. Samples of geopropolis of M. subnitida, one of inside and another outside of the nest from a hive in the municipality of Mossoró (northeastern Brazil) were analyzed by HPLC-PDA-ESI-MS/MS and their antioxidant activity evaluated by the DPPH and β-carotene/linoleic acid methods. Both samples exhibited similar chemical profile, characterized by 26 phenolic compounds, however, the compounds detected were more abundant in sample collected from inside of the nest. They were tentatively characterized as galloyl hexoses, coumaroylO-galloyl-hexoses, cinnamoyl-O-galloyl-hexoses, coumaroyl- and cinnamoyl- galloyl hexoses, phenylpropanoyl-O-benzoyl hexoses, flavanones and ellagitannins. Flavonoids, galloyl hexoses, coumaroyl-O-galloyl-hexosides, cinnamoyl-O-galloyl-hexosides and coumaroyl-cinnamoyl-galloyl hexosides were reported previously in this genus, however ellagitannins and phenylpropanoyl-Obenzoyl hexoses are reported for the first time. Comparing the antioxidant activity of the geopropolis samples from inside and outside of the nest, the latter was higher than the former
Anti-Cancer Activity Testing of Cumin (Plectranthus Amboinicus) Ethanol Extract Against Artemia Salina Leach by Using Brine Shrimp Lethality Test (BSLT) Method
Authors: Rachutami Ika , Martha Rahma Diyan , Muadifah Afidatul , Manggara Algafari Bakti
Published: July 2022

The purpose of this study was to determine the anticancer activity of cumin leaf extract (Plectranthus amboinicus), which was applied using the Brine Shrimp Lethality Test (BSLT) method to determine the level of acute toxicity (LC50) of the extract against Artemia salina LEACH larvae. Cumin leaf samples were extracted using the maceration method with 96% ethanol. The cumin leaf extract was then tested qualitatively and quantitatively. Toxicity testing used concentrations of 500 ppm, 1000 ppm, 1500 ppm, 2000 ppm, and 2500 ppm, which were given to Artemia salina LEACH larvae for 24 hours. Calculate the LC50 value in this study using probit analysis. The results of qualitative and quantitative testing showed the presence of saponins by 5.20%, tannins by 8.21%, flavonoids by 23.93%, and alkaloids by 4.37%. The results of the acute toxicity test of the extract using the BSLT method showed that there was anticancer activity with the acquisition of LC50 of 1000 ppm, which was 697.99 ppm.
Rhodamine-B Dyes Adsorption by Beads Alginate
Authors: Rahayu Rahayu , Bandjar Adriani , Susanto Ninditha Clourisa Amaris , Fajarwati Feby Indah , Phuong Nguyen Thi Thanh
Published: July 2022

Research has been carried out on the adsorption of rhodamine-b dye by alginate beads. The production of alginate granules was carried out at a concentration of 3.5% alginate powder. Identification of functional groups was carried out by FT-IR and water absorption test resulted in a maximum capacity of 96.24% at 90 minutes. Determination of adsorption capacity was carried out by UV-VIS spectrophotometer at a maximum contact time of 30 minutes and a maximum pH at pH 7, and resulted in adsorption maximum concentration at 30 ppm is 15.954 mg/L with adsorption capacity of 4.7862 mg/g
Poly Aluminum Chloride (PAC) as Coagulant in Liquid Waste Treatment of Tofu
Authors: Ismawati Riva , Rahayu Rina , Puspitarini Rizqa , Muhlisin Ahmad , Tawang Alene
Published: July 2022

The tofu craftsmen have not processed the liquid waste produced and disposed of the liquid waste directly into the waters as a result, the water quality has decreased. Tofu liquid waste has BOD (Biological Oxygen Demand), COD (Chemical Oxygen Demand), and TSS (Total Suspended Solid) exceeding the permitted quality standards. Treatment of tofu liquid waste needs to be done before being disposed of, one of which is by using coagulant. The purpose of this research is to know the value of BOD, COD, TSS, and pH of tofu liquid waste before and after the addition of PAC. The study was conducted by varying the concentration of PAC (10 mg/L, 30 mg/L, and 75 mg/L). The test results show that the tofu liquid waste has a BOD value of 3,890 mg/L, COD 9558.7 mg/L, TSS 2,905 mg/L, and a pH of 3.7. The use of PAC as a coagulant reduced the values of BOD, COD, TSS, and pH. PAC concentration of 75 mg/L can reduce BOD, COD, TSS, and pH values to 3,015 mg/L, 6,900 mg/L, 840 mg/L, and 3.59, respectively.
Phytochemical Screening and Larvicidal Activity of Kebiul (Caesalpinia Bonduc. L) Seed Kernel Against Aedes Aegypti Mosquito
Authors: Rantina Popi , Yani Dwi Fitri , Sari Suci Permata , Raihan Dany
Published: July 2022

Dengue Hemorrhagic Fever (DHF) is caused by an infected A. aegypti mosquito, which can cause serious bleeding, a sudden drop in blood pressure and even death. Kebiul seed kernel extract is thought to contain flavonoid compounds, terpenoids, saponins and steroids that can be used as larvicides. The purpose of this study was to determine the toxicity of the extract, n-hexane fraction, and ethanol fraction of kernel seed (C. bonduc. L) against A. aegypti mosquito larvae.  This study used the methods of extraction, phytochemical screening, and toxicity tests by calculating larval mortality. Based on the results of phytochemical screening, extract of kernel seed (C. bonduc. L) contains tannins, flavonoids, alkaloids, steroidal saponins and terpenoids. Toxicity test (LC50 values) of extract, n-hexane fraction, and ethanol fraction of kernel seed (C. bonduc. L) are 368,566 g/mL, 483,010 g/mL, 338,361 g/mL. The LC50 value 1000 ppm has a toxic effect, so the kernel seed has the potential to be used as a larvicide.
Recent Advancements in CNS Acting Drugs: A Step Towards End of
Illness
Authors: Chawla Pooja A. , Javed Md. Noushad , Pottoo Faheem Hyder , Naim Mohd. Javed
Published: July 2022

Progressive degeneration in the morphology and functions of neuronal cells leads to multifactorial
pathogenesis conditions of oxidative stress, mitochondrial dysfunction, excitotoxicity, nitric
oxide toxicity, and neuro-inflammation to mediate heterogeneous types of neurodegenerative diseases,
such as Epilepsy, Alzheimer's (AD) and Parkinson's (PD), more prominently among aging populations.
In this editorial, complex mechanisms, challenges, and advancements made in the discovery of
new neurotherapeutics, as well as designing approaches being adopted to fabricate brain-targeted delivery
systems, are discussed.
Development of Drug Resistance
Authors: Karthikeyan Divyapriya , Kumar Mukesh , Yadav Jyoti , Alok Amit , K. R. Tetala Kishore , Kumar Sanjit
Published: July 2022

The phenomenon of drug resistance is a widely acknowledged problem in
clinics. Drug resistance not only increases the treatment time, but also paves the way
for testing the maximum limit of dose tolerance of antibiotics in the patient. There is no
escaping of the fact that drug tolerance may remain a perpetual problem and bacteria
will keep on evolving as a part of the natural selection process. Therefore, novel drugs
targeting the novel mechanism of action could be a proposed solution for this problem.
The mechanism of action includes efflux pump, alteration/modification of drug target,
enzyme inactivation and prevention of drug penetration. The other thing is to avoid the
unnecessary usage of antibiotics so that the bacteria living inside the body do not
develop resistance. The places where antibiotics can be bought for human or animal
use without a prescription, the emergence and spread of resistance are made worse.
Similarly, in countries without standard treatment guidelines, antibiotics are often over prescribed by health workers and veterinarians and over-used by the public. Therefore,
this unregulated overuse of antibiotics may lead to an era where normal infection may
become difficult to treat and could lead to mortality. The maintenance of hygiene is a
must for everyone and it is the only way to get rid of pathogenic bacteria. So, in this
chapter, we summarize recent literature on the development of drug resistance, their
mechanism of actions used by microbes to develop antibiotic resistance, factors
determining their development by infective agents and the spread of resistant bacteria.
Diversidad avifaunística y gremios tróficos en tres condiciones diferentes de cobertura vegetal selvática, al sureste de Chiapas, México
Authors: López-Muñoz Eliasaf Caheri , Enríquez Paula L. , Saldaña-Vázquez Romeo A. , Hernández-Morales Francisco , Vandame Rémy
Published: July 2022

Los bosques, selvas y otras asociaciones vegetales han sufrido un proceso de degradación ambiental, atribuido a la deforestación y a la fragmentación con el objetivo de ampliar la frontera agrícola-pecuaria. Estos cambios ambientales no pasan desapercibidos para las comunidades faunísticas presentes, como las aves. Una manera confiable de conocer las posibles afectaciones antropogénicas en los ecosistemas es a través del análisis de los gremios tróficos aviares, ya que los cambios en la estructura de la vegetación condicionan la presencia de diferentes gremios tróficos. El objetivo principal del presente estudio fue analizar las variaciones en la riqueza, abundancia y composición de las comunidades de aves y los gremios tróficos en tres diferentes condiciones de cobertura vegetal (selva con regeneración SCR, ecotonos ECO, y un poblado POB), en una región de la Selva Lacandona, Chiapas, México. El muestreo se realizó durante cuatro meses del 2020 donde se recorrieron seis transectos de aproximadamente 2 km de longitud cada uno. Se registraron en total 6,190 individuos de 201 especies de aves. El ECO presentó la mayor riqueza de aves con 155 especies, seguido por la SCR (104 especies) y finalmente, el POB (101 especies). Sin embargo, el POB presentó la mayor abundancia de individuos (2,661 individuos) con respecto a las otras dos condiciones ambientales. La mayor semejanza de las comunidades avifaunísticas ocurrió entre el poblado y el ecotono (53 %). El mayor número de gremios tróficos también se registró en el ECO (15). En general, los insectívoros tuvieron una buena representatividad, particularmente en la SCR. Por el contrario, los granívoros estuvieron relacionados con los espacios abiertos y semiabiertos, desprovistos de vegetación arbórea (POB y ECO). Los frugívoros tuvieron mayor número de especies en el ECO, pero fueron más abundantes en el POB. Mientras que, los nectarívoros se observaron con mayor frecuencia en el POB. La deforestación y la fragmentación reducen el espacio físico de los ecosistemas y también alteran la disponibilidad de alimento para las aves. Lo anterior, se verá reflejado en la presencia-ausencia de los diferentes gremios tróficos y en las funciones ecológicas que son capaces de realizar.
THE ARCHITECTS’ AND LANDSCAPE ARCHITECTS’ VIEWS ON THE DESIGN AND PLANNING OF THE HOSPITAL COURTYARD GARDENS (HCG) IN MALAYSIA
Authors: Mat Idris Madihah , Sibley Magda , Hadjri Karim
Published: July 2022

This paper presents the architects' and landscape architects' point of views on their original design intentions in designing and planning hospital courtyard gardens (HCGs) in Malaysia. Following a field observation, a semi-structured interview with two architects and two landscape architects was conducted. Additionally, the architectural design briefs for three selected Malaysian hospitals were obtained as secondary data for this study. The results revealed that the intended common design pointed out by the architects includes: i) Daylighting strategy; ii) Ventilation strategy; iii) Access to nature; and iv) Point of orientation. Landscape architects, on the other hand, are concerned with: i) Forest-like garden concept; ii) Natural and organic form instead of aesthetic appearance; iii) An escape place for relieving stress and; iv) A hang-out space for socialisation. This paper contributes to the understanding of how designers would think and determine the architectural plan and landscape design in achieving an optimal HCG design to meet the needs of the intended users.
HOW MUCH DOES AN AFFORDABLE HOUSE COST TO BE PAID BY YOUNG PROFESSIONALS IN GREATER KL, MALAYSIA?
Authors: Sohaimi Nor Suzylah
Published: July 2022

Affordability of housing has been a hot topic among various socioeconomic groups. Surprisingly, given the current situation, the majority of the young generation is negatively affected by this stressful issue. This study, therefore, focuses on young professional groups from the built environment profession, namely, the engineer, architect, urban planner, and quantity surveyor. These professional groups also earn an income between B40, M40 and T20. Two research objectives were composed in this study: (1) To measure the monthly affordable housing cost and (2) To define affordable housing types by different household income groups amongst young professional based on the residual income model (RIM), which is used to measure housing affordability. The surveys were distributed amongst 341 respondents selected through stratified random sampling. The findings have revealed that B40 can only bear a monthly housing’ costs not exceeding MYR 728, followed by M40 and T20 around MYR 2503 and MYR 6159, respectively. Hence, the B40 group had lesser house option types, i.e., around ten house types compared to M40 and T20.
QUALIFYING AND QUANTIFYING THE INTANGIBLE FACTORS THAT ENHANCE IN INFRASTRUCTURE ASSET VALUATION
Authors: Hamzah Ezdihar , Mohd Rohaizad Nur Farah Hanna , Abdullah Hashim Hariati , Ismail Azizah
Published: July 2022

Infrastructure asset are included as a special property when one is conducting a valuation. The uniqueness of an infrastructure asset due to its specific functions and operations that are differ from other infrastructure asset. Thus, the tangible and intangible factors included for valuation are also difference and specialize according to each infrastructure asset. The issues of intangible factors thatenhance in infrastructure asset valuation are arisen since the investor and stakeholders are concern in getting to know how much the asset are generating a profit compare to its expenses in operating the asset especially a public asset. This research aims to evaluate the application of intangible factors in infrastructure asset valuation. As intangible factors are unforeseen factors, thus this researchelaborates on detailed intangible factors and how to identify the factors that influence to the value. The methodology adopted in this research is based on qualitative analysis by in depth interview with the experts that specialized in special property valuation. The research findings are derived from the content analysis. Based on the interview expert’s session, this paper has also benefit inthe form of knowledge and to the practitioner in implementing the intangible factors in infrastructure asset valuation.
ANALYSIS OF CURRENT CONDITION OF HERITAGE MASJID IN NEGERI SEMBILAN
Authors: Abd Rahim Siti Azira , Ismail Noor Hayati , Abd Latip Nurul Syala
Published: July 2022

In a Muslim community, the mosque or masjid is considered to be important because they have served as key locations for religious gatherings and centres for political and social activities in the community since the dawn of Islam. A heritage masjid in Malaysia is classified as having traditional architecture, which includes a distinctive style and material that represents the local people's customs and culture. Traditional architecture in Negeri Sembilan is in jeopardy as a result of rapid urbanization. Its abandonment might lead to the disappearance of its information, documentation, and features due to a change in design and materials. Whether as a consequence of natural calamities or human invasion, architectural heritage is constantly under risk. Therefore, preservation and conservation are essential stages in the life cycle of a historic property. Heritage masjid are important to protect, because it depicts the authenticity and workmanship of local villagers in an age before modern technology. The objective of this paper is to evaluate the current condition of heritage masjid in Negeri Sembilan. This research employed on-site observations and includes a comprehensive review of the literature approach on various documentation. This paper concludes with a discussion of how these findings will contribute to the improvement of the current situation and the preservation of the functional aspects of Negeri Sembilan heritage masjid.
IDENTIFYING THE OPTIMAL PLACEMENT OF SPATIAL WIND ENERGY FARMS IN SELANGOR, MALAYSIA
Authors: Mohd Zubir Muhammad Ashrul , Jaafar@Ibrahim Saiful Anuar , Abdul Rasam Abdul Rauf , Mohd Yusoff Zaharah , Che Hashim Izrahayu
Published: July 2022

Electrical energy is indispensable for the economic growth and well-being of humanity. However, there is a growing concern with the conventional method of generating electricity which is by burning coal and other fossil fuels. In the coming decades, the world will experience a transition to cleaner energy, away from the use of fossil fuels. One of the clean and renewable energies that is getting more popular and advancing in technology is wind energy. Wind energy requires a proper location to operate in order to be profitable and have the desired impact on society. In search of a suitable location for wind energy, a Geographical Information System based Multi-Criteria Decision Making (GIS-MCDM) approach was utilized in this paper to explore the suitable areas for wind energy development in Selangor. Eight parameters were chosen to address this concern, including terrain elevation, terrain slope, road network, airport locations, forests, settlements, water bodies and average wind speed. All of these criteria were weighted using the pairwise comparison approach in MCDM, and the decisionmaking process was facilitated by the criteria utilizing the ArcGIS-weighted overlay tool. The study has identified seven potential sites, but only four sites that are practically located the wind energy site, which are Banting, Jeram, Ijok and Kerling. GIS-MCDM can assist the decision-maker in designing the optimal placement of wind farms in real scenarios.
THE EFFECT OF SOCIO-DEMOGRAPHIC ATTRIBUTES ON WALKING BEHAVIOUR OF RESIDENTS IN SHAH ALAM CITY, MALAYSIA
Authors: Mohd Talmizi Nurain , Haji Ali Nor Eeda , Mokhtar Safizahanin
Published: July 2022

Walking is the most common form of physical activity people engages in. However, people walk for different purposes, which most times are influenced by environmental, and socio-economic factors operational within a particular setting. Literature on walking behaviour is dominated by physical environment factors with little mention of socio-demographic factors. Therefore, this study examined the influence of socio-demographic attributes on two categories of walking behaviour: the utilitarian and recreational walking. Through an online survey, 320 copies of the questionnaire were purposefully administered to adults of 18 years old and above in Shah Alam City, Malaysia. A multiple linear regression analysis technique was adopted in identifying the predictors (sociodemographic attributes) that significantly influenced the utilitarian and recreational walking behaviour of respondents. Findings revealed that monthly income (β=-.350, p<0.05), educational qualification (β=.187, p<0.05), and age (β=-.126, p<0.05) have a negative association with utilitarian walking. In contrast, educational qualification (β=.295, p<0.05) and age (β= .240, p<0.05) have a positive association with recreational walking. The findings also revealed that male respondents engaged more in recreational walking while the unmarried walking behaviour varied. Thus, in formulating policies and actions that promote walking, the identified differences in walking behaviour of various groups must be taken into consideration.
HEDONIC REGRESSION ANALYSIS IN DETERMINING THE EFFECT OF GREEN ON HIGH RISE RESIDENTIAL
Authors: Abdullah Lizawati , Mohd Thuraiya
Published: July 2022

In predicting house price, there are many influential variables, and each variable is identified as a price determinant. Theoretically, variables are divided into categories, namely locational and neighbourhood attribute, structural attribute, time attribute, and environment attribute. Green element is one of the attributes as describe under environment category. The attribute is important as other variables which significantly explained how people willing to pay intangible variable. The relationship between property price and attribute needs to be examined to understand the influence of the green element on property price. Thus, this research attempts to demonstrate the independent variables correlated to the house price, including the green variable, by using hedonic regression analysis. Hedonic regression analysis is a well-known approach in determining the relationship between two or more variables. Green element represents the green-rated obtained by the housing scheme as evidence that the building possesses sustainable characteristics. The cost of green is relatively high than a conventional building. A dataset of 934 house price transactions with 14 variables was analysed. From the analysis, it is concluded that green has a significant effect on the house price. The result was interpreted by the β coefficient of 0.065 explained in hedonic regression analysis. It signifies that green can add premium to the house price. House price results from multiple determinants represented by house attributes and the findings confirm that one of the environment attributes do give effect on the house price in Malaysia property market.
USER PERCEPTION OF NATURAL VENTILATION STRATEGY AT INPATIENT WARD, KUALA KANGSAR HOSPITAL
Authors: Muhamad Jamaludin , Ismail Amirul Amin , Ahmad Hayroman , Abdul Aziz Azhan
Published: July 2022

Hospitals and healthcare facilities are known to be among the most energyintensive buildings. This concern has resulted in a resurgence of sustainability awareness in the built environment. Nowadays, many have adopted environmental strategies such as natural ventilation. It offers a low-cost alternative to remove stale air and replace fresh air efficiently through cross ventilation. Studies have shown that natural ventilation is one of the most energyefficient solutions to improve thermal comfort and hospitals and healthcare facilities will greatly benefit from this initiative. Passive Design has been valued as a key strategy in controlling airborne infection, especially in hospital wards with limited resources. Comparatively, the installation of ceiling-mounted mechanical fans will create a negative ventilation pressure difference. This paper explores the potential of the passive design method based on the experience of inpatient ward users. The study utilised questionnaires based on the end user's experience in a naturally ventilated inpatient ward area. The survey administration method ensures the 51 respondents’ anonymity is preserved especially in a healthcare setting. This investigation shows that natural ventilation provides a higher ventilation rate and is more energy-efficient than mechanical ventilation. Therefore, natural ventilation is a suitable solution in public buildings such as hospitals' inpatient wards. The outcome of this study will be paramount for designers to meet passive design objectives. Consequently, these will be the guidelines and outline information for hospital design in the future.
Намагниченность иглообразного графена, внедренного в матрицу полистирола
Authors: Ионов А.Н. , Волков М.П.
Published: July 2022

In this work, we study the magnetization of two types of particles of a composite consisting of polystyrene and multilayer graphene chemically bonded to it, obtained by magnetic separation of the initial composite. For needle-shaped particles, a ferromagnetic type of magnetization was observed for the first time, with values of saturation magnetization that are large for graphene. For flat, macroscopic particles of the composite, a superposition of several contributions to the magnetization was observed.
Исследование особенностей электронного спектра квантовых точек узкозонных полупроводников
Authors: Кабанов В.Ф. , Михайлов А.И. , Гавриков М.В.
Published: July 2022

Samples with quantum dots (QDs) of narrow-gap semiconductors of the A3B5 group (indium antimonide) and the A2B6 group (mercury selenide) have been studied. The absorption spectra of the investigated QDs are analyzed and the correspondence of the maxima in the spectral characteristics to the model representations of the calculated electronic energy spectrum for this materials is assessed. It is concluded that used model representations requires refinement, primarily due to the fact that studied objects are nanocrystals with complex geometry.
Атомарная однопузырьковая сонолюминесценция иттербия в коллоидной суспензии
Authors: Гареев Б.М. , Абдрахманов А.М. , Шарипов Г.Л.
Published: July 2022

For the first time, atomic single-bubble sonoluminescence of Yb in a colloidal suspension in dodecane of SiO2 nanoparticles containing YbCl3 was recorded. A spectrum was obtained containing Yb, Yb+ lines in the region of 300-550 nm, together with SiO lines, due to the entry of nanoparticles into the bubble during sonolysis of the suspension. The lower limit of determination of ytterbium in the initial aqueous solution of YbCl3 used for depositing onto nanoparticles, according to the intensity of the analytical line at 399 nm in this spectrum, is 3∙10–3 mol/l. By comparing the experimental and temperature-dependent calculated spectra of ytterbium, we found the electron temperature in the nonequilibrium plasma that arises during bubble collapse, where Yb atoms emit light: Te = 7000±500 K.
Эффект самоподдержания проводящего состояния в обратносмещенных GaAs-диодах, переключаемых в режиме задержанного лавинного пробоя
Authors: Рожков А.В. , Иванов М.С. , Родин П.Б.
Published: July 2022

It is experimentally established that high-voltage GaAs diodes maintain conducting state with low residual voltage after switching to the conducting state in the delayed impact-ionization mode. The duration of the constant current in the reversely-biased structure is determined by the duration of the applied rectangular voltage pulse (up to 100 ns) and significantly exceeds drift extraction and recombination times. The discovered effect of self-supporting conducting state resembles the lock-on effect in optically activated GaAs semiconductor switches and S-diodes with deep centers. The effect can be explained by shock ionization in narrow collapsing Gann domains.
Оптимизация тренировки полевых катодов высоким напряжением на основании данных полевого проектора
Authors: Колосько А.Г. , Попов Е.О. , Филиппов С.В.
Published: July 2022

The paper describes a technique for training multi-tip field cathodes with high voltage, which makes it possible to optimize the emission current on the basis of field projector data. The paper presents an algorithm for obtaining and analyzing experimental data, which allows for controlled training of the cathode surface, and also presents the results of the analysis of experimental data obtained for a promising nanocomposite structure of carbon nanotubes in polystyrene.
Potential Role of an Adjunctive Real Time Locating System in Preventing Secondary Transmission of SARS-CoV-2 in a Hospital Environment: A Retrospective Case-control Study (Preprint)
Authors: Kim Min Hyung , Ryu Un Hyoung , Heo Seok-Jae , Kim Yong Chan , Park Yoon Soo
Published: July 2022

BACKGROUND

There has been an increase in the validation of new technologies in infection control in hospital settings with an increase in demands of investigation for its role on contact tracing.

OBJECTIVE

This study aimed to examine the validity of a real time locating system (RTLS) versus the conventional contact tracing method in identifying high-risk contacts that lead to secondary transmission of SARS-CoV-2.

METHODS

A retrospective case-control study was conducted with contacts of in-hospital confirmed COVID-19 patients, who were enrolled from January 23 to March 25, 2022, at a University hospital in South Korea. Contacts were identified using either the conventional method or RTLS. The primary endpoint of this study was secondary transmission of SARS-CoV-2 among contacts. Univariate and multivariable logistic regression analysis comparing test positive contacts and negative contacts were performed.

RESULTS

WWhile only 74 contact cases were identified by both methods, 509 cases and 653 cases were confirmed by the conventional method and RTLS, respectively. A higher sensitivity (653/1,088, 60.0%) of the RTLS tracing method than conventional tracing method (509/1,088, 46.8%) against all methods combined was noted. The secondary attack rate in RTLS traced contacts model was 8.1%, while that of the conventional method model was 6.1%. Multivariable logistic regression model revealed that RTLS was more capable of detecting secondary transmission than the conventional method (adjusted odds ratio: 4.51, [95% confidence interval: 1.42-14.27], P=.011).

CONCLUSIONS

This study shows that RTLS proved beneficial when it is used as an adjunctive method to the conventional method for contact tracing that leads to secondary transmission. However, RTLS cannot completely replace traditional contact tracing.
Cyberbullying sebagai Kekerasan Berbasis Gender Online: Dampak terhadap Remaja serta Peran Keluarga
Authors: Permatasari Aprilia Anggi
Published: July 2022

Cyberbullying is one of the violent phenomena that we still encounter today. Cyberbullying is violent behavior that is carried out intentionally by a strong individual or group to continuously oppress or hurt weak individuals or groups by means of information technology communication, such as social media. This study was used to determine the impact of the cyberbullying phenomenon, especially on adolescents and to determine the role of the family in responding to this phenomenon. This research is a library research using a qualitative descriptive method. The data collection technique is in the form of documentation from secondary data sourced from research studies journals, news, survey institute data and government regulations. The results showed that cyberbullying can have a very serious impact on victims, both psychologically, physically, and socially. More severe cyberbullying tends to increase suicidal ideation. In addition to having an impact on victims, cyberbullying can also have an impact on perpetrators. The role of families, especially parents, is very important in responding to the phenomenon of cyberbullying, both as an effort to prevent and handle it.
Finding Justice in Cyberspace: The Wickedness of Online Gender-Based Violence (GBV)
Authors: Nugraha Nusaibah Edi , Anugraputri Sekarayu Tunggadewi
Published: July 2022

Gender-Based Violence in Indonesia is generally divided into two categories; kekerasan berdasarkan ranah personal (GBV that takes place in a private setting) and kekerasan berdasarkan komunitas dan negara (GBV that takes place in a public setting). Aside from this, the COVID-19 pandemic has brought to light an equally concerning form of GBV, online GBV. While both have their complexities, there seems to be a jarring gap in how current policy handles offline and online. The objectives of this research are two-fold: (1) to examine online GBV within the context of Indonesia; (2) to explore the nexus between theory and practice regarding online GBV. We found that although both types of GBV are shrouded in hegemonic masculinity, the added layer of the online space makes online GBV more complex, making it a Wicked Problem. The concept of a Wicked Problem is often used to descibe issues with high complexity making it difficult to solve Though at the time of write UU TPKS had not been legalized, the 10 year strugle behind it shows the wickedness behind this issue. As UU TPKS has yet to be implemented, we suggest upscaling grassroot feminist or pro-gender organizations in effort to spread awareness and further combat online GBV.
Kebijakan Pendidikan: Perencanaan Pembelajaran Guna Menyikapi Kekerasan Gender Berbasis Online (KGBO)
Authors: Sa’diyah Khalimatus , Ningrum Rahma Puspita
Published: July 2022

The purpose of writing this article is to explain how anti- Online Based-Gender Violance (KGBO) learning planning is applied to students starting from the junior high school level. The Online Based-Gender Violance (KGBO) case that continuous to increase shows that a solustion is needed in dealing with these problems. By involving several parties ranging from teachers, the Education Office and the Integrated Service Center for the Empowerment of Women and Children (P2TP2A), students and parent of students, it can produce good collaboration to implement the proposed education policy. The research method used is descriptive qualitative by using secondary data (library research) from the media, journals, news or books that are relevant and able to answer the problem formulation. Based on the type of qualitative research, there are four stages in analyzing data starting from the process of collecting data, reducing data, presenting data and drawing conclucions. Through these stages it will produce a factual study and findings of the theme raised. The proposed policy that Online Based-Gender Violance (KGBO) learning is taught not only through material but also provides direct opportunities for student to campaign socially and learn to the Education Office and the Integrated Service Center for the Empowerment of Women and Children (P2TP2A) which is expected to become a suggestion that can reduce exixting Online Based-Gender Violance (KGBO) problems.
New Directions in Teaching Introductory and Organic Chemistry
Authors: Lamoureux Guy , Ogilvie J. F.
Published: July 2022

To resolve several problems that arise in the teaching of hybrid atomic orbitals (HAO) and the valence-shell electron-pair repulsion (VSEPR) model, we propose an original way to present molecular structures, beginning with an analysis of the teaching of lone pairs without HAO and VSEPR. Our purpose in eliminating completely the HAO and VSEPR models from introductory and organic chemistry is to avoid erroneous concepts about the distributions of electronic charge within molecules. We provide a general design to teach the basic curriculum of chemistry in the future without HAO and VSEPR.

 
H-Bridges with OH Donors in Organic Chemistry
Authors: Lamoureux Guy , Chaves-Carballo Katherine
Published: July 2022

Este artículo discute la formación de puentes de hidrógeno entre grupos funcionales con diversos grupos aceptores y OH donadores. Se presenta una serie de mallas circulares como ayuda visual para la organización y comparación de la diversidad de puentes de hidrógeno en moléculas orgánicas, haciendo énfasis en la presencia de un grupo OH (de alcoholes o fenoles, primordialmente) como donador de puente de hidrógeno. Los puentes de hidrógeno son clasificados como “poco probable”, “poco significativo” y “significativo”, de acuerdo con la evidencia experimental o teórica; y analizados en términos de efectos electrónicos, estéricos, termodinámicos, situacionales o de los sustituyentes. Nuestro objetivo es que el estudiante sea capaz de predecir y clasificar la probabilidad de interacción por puente de hidrógeno entre compuestos orgánicos comunes y comprender su efecto en sistemas más complejos.
Tratamiento de datos de alimentos fluidos para la determinación experimental de viscosidad
Authors: Martinez-Padilla Laura Patricia
Published: July 2022

La viscosidad es una propiedad clave en múltiples actividades de la ingeniería de procesos que van desde el diseño y la selección de equipos hasta su uso como índice de calidad. En este artículo se muestran diversas curvas de flujo y el procedimiento del tratamiento de datos para calcular la viscosidad de materiales líquidos de comportamiento no newtoniano, así como la curva de ajuste a modelos empíricos. Se presentan datos de alimentos fluidos, materiales de composición y estructura compleja, obtenidos en el laboratorio, los cuales se analizan de acuerdo con la respuesta que tienen al aplicar un esfuerzo de cizalla o una velocidad de cizalla. En cada caso se indica el instrumento, tipo de dispositivo, las condiciones de ensayo utilizadas y la forma de obtener los parámetros reológicos que definen la curva de flujo, así como la viscosidad correspondiente, incluyendo el significado de los parámetros de ajuste. Los ejemplos mostrados en este artículo sirven de base a cualquier usuario que desee reproducir o interpretar los datos obtenidos en un reómetro usando geometrías convencionales. 
Development and Performance Evaluation of Lucerne Harvesting Machine
Authors: J. V Nandaniya , T. D. Mehta , S. K. Gaadhe
Published: July 2022

Abstract: Fodder harvesting is one of the enumerative as well as job creative farming. Lucerne is one of the oldest cultivated fodder crops in the world. In a present day, mostly harvesting of fodder in India and Gujarat done by manually. The well matured lucerne are harvested manually by sickle which is time consuming and inefficient. More over manual harvesting is done in a Squatting position which is arduous to the farmer and causes backache. Therefore, a project on development and performance evaluation of lucerne harvesting machine was undertaken. A lucerne harvesting machine was developed which consisted of main frame, diesel engine, conveyor unit, reel unit, cutting unit, handle, cutting height wheel and transporting wheel. The developed lucerne harvester were divided in two part (1) cutting unit having knives of 30 mm width and 2 mm thickness and (2) conveying unit which convey the harvest crop. A power transmit from engine to the cutting unit and conveying unit done by the help of belts and pulleys. The power required for cutting and conveying were 97 W and 215 W, respectively.
Implementation of a Digital Payment Processing System Using Spring Boot Interceptor Patterns via Swift Messages
Authors: G Anish , Kaganurmath Prof. Sharadadevi
Published: July 2022

Abstract: A financial transaction is an agreement, or conversation, entered between a purchaser and a dealer for the trade of an asset for virtual processing of payments. E-cash (digital money) is the crucial fee way in digital exchange, this is seen as the same as coin in the real world. A financial transaction is one wherein there is some kind of pastime that modifies the rate of the property, liabilities, or owner's fairness of a business enterprise. The ones styles of transactions are - component transactions which includes a buyer and a seller, and that they usually include cash in some way. The aim of this work was to develop a systematic ordering, comprehensive and classification of issues in the area of financial services. Spring Boot is used for the implementation of the product and it is developed with the help of swift messaging standard for easier transitions and efficient transactions. A customer will subscribe for the service which is provided by the customer service provider. The customer will have to pay the monthly fees for that service. It will be automatically debited from the bank account. The work of this project is for the customer to review the billing amount and also request for billing date extension and request for bill cancellation if needed. The complete process is divided into two parts which are inbound and outbound. There will be a queueing process which picks the customer the query and processes it one by one. The customer will initiate a query and after all the verification and validation the response will be sent to the customer.
Inovação no processo de gestão do conhecimento com o uso de uma plataforma digital na Empresa Santo Grão
Authors: Araújo Jennifer Alencar de , Franklin Marcos Antonio
Published: July 2022

This technological article aims to present the implementation of the knowledge management process, developed in the company Santo Grão, through the application of a digital platform, Microsoft Sharepoint, which is considered innovative for the gourmet coffee segment. The strategy for the growth of the company is the expansion through franchising system. In this way, digital platform technology makes it possible to map the knowledge generated by the company in a structured and dynamic way. The methodology is based on Business Problem Solving procedure, that incorporates the development of practical and applied work. A qualitative approach was used and data collection was performed through the interview technique using a semi-structured script. The following results were verified: the delivery of a parameterized digital platform for knowledge management, already in operation, allowing the business to be leveraged according to its strategy; the applicability in the routines and procedures by current employees, general managers and partners, as well as futures franchisees, accelerating the learning process of how to manage a Santo Grão store; the knowledge mapping and recording process, as well as the constant information updating and its transmission among users; finally, financial gains were identified through the use of this platform, compared to the tool used previously.
PENGARUH LAJU PERTUMBUHAN EKONOMI, TINGKAT PENGANGGURAN TERBUKA DAN INDEKS PEMBANGUNAN MANUSIA TERHADAP TINGKAT KEMISKINAN DI PROVINSI ACEH
Authors: Rahmawati Yuli , Anwar Khairil
Published: July 2022

Penelitian ini menganalisis pengaruh tingkat pertumbuhan ekonomi, tingkat pengangguran terbuka, dan indeks pembangunan manusia terhadap tingkat kemiskinan di Provinsi Aceh. Penelitian ini menggunakan data sekunder dari tahun 2006 sampai dengan tahun 2020, dan model regresi yang digunakan adalah model regresi linier berganda dengan menggunakan metode Ordinary Least Square (OLS). Ada beberapa uji yang digunakan, seperti uji normalitas dan uji asumsi klasik. Uji asumsi klasik meliputi uji multikolinearitas, uji autokorelasi, dan uji heteroskedastisitas. Alat regresi dalam penelitian ini menggunakan software eviews10. Hasil penelitian menunjukkan bahwa tingkat pertumbuhan ekonomi, tingkat pengangguran terbuka, dan indeks pembangunan manusia berpengaruh positif terhadap tingkat kemiskinan di Provinsi Aceh.
Ameliorative Effect of Tamarindus indica and Vitamin D Supplementation On Fluoride Induced Biochemical Parameters in Albino Rat
Authors: Yadav Shalini , Singh P.K. , Sagar Prem , Nath Sharma Harendra
Published: July 2022

Fluoride water problem is very common in all areas of world including India. The deleterious effects of fluoride on bones causes fluorosis. This problem arises mainly due to gradual lowering of ground water level, which is merely responsible for degrading water quality. The hand pumps of many areas are restricted for use due to excess fluoride in their water. In a country like India, it is very tough to provide pure drinking water to all. Hence this study is designed to study the effect of fluoride on biochemical parameters in albino rats, the mammalian model. The aim and objective of this study is to evaluate combination of two antioxidants viz. Tamarindus indica (rich source of vitamin C) and vitamin D against fluoride toxicity in mammals for which albino rat is used as model. Tamarindus have significant amount of antioxidants and vitamin D also have immunity and healing properties, hence this can be a reason behind their cumulative ameliorative effect against sodium fluoride intoxication. Further, the effect of fluoride can be minimized or ameliorated using some antioxidants and vitamins. For this purpose, the fluoride intoxicated rats were observed for possible amelioration by Tamarindus indica and vitamin D supplementation. The fluoride intoxication showed altered biochemical parameters like serum protein, SGOT, SGPT, ACP, ALP and LDH
The combination of omalizumab improves the safety and efficacy of allergen immunotherapy
Authors: Zhang Yingying
Published: July 2022

Background: Allergen immunotherapy (AIT)-associated adverse
events are a major concern for the safety and efficacy of AIT.
Omalizumab is a novel anti-IgE monoclonal antibody for the treatment of
allergic diseases. At present, there is no agreement on whether
combining omalizumab with AIT could improve such conditions.
Objective: To identify the superiority of combining omalizumab
and AIT in allergic diseases. Methods: A thorough search of the
Pubmed, MEDLINE, and Cochrane Library databases was conducted to find
randomized controlled trials reporting the combination of omalizumab in
AIT. A fixed-effects model was used to estimate the safety and efficacy
with 95% confidence interval. Results: The inclusion criteria
for the meta-analysis were met by a total of 10 randomized controlled
studies (containing 871 patients). According to a pooled analysis,
individuals receiving omalizumab reported significantly fewer episodes
of severe systemic adverse reaction compared to control patients (RR
0.36, 95% CI 0.22 to 0.58). Similarly, the addition of omalizumab
significantly increased the number of patients achieving target
maintenance dose (TMD) and sustained unresponsiveness to allergen (SU)
(RR 1.33, 95% CI 1.16 to 1.48; and RR 2.55, 95%CI 1.56 to 4.17,
respectively) than the control group. Meanwhile, the improvement in
symptom severity score (MD -0.28, 95%CI -0.31 to -0.25), rescue
medicine daily means score (MD -0.12, 95%CI -0.22 to -0.09), and the
number of patients consuming epinephrine in AIT（RR 0.30, 95%CI 0.15 to
0.63）were also displayed superior to control. Conclusion:
Omalizumab can significantly enhance the safety and efficacy of AIT by
decreasing the frequency of severe systemic adverse events and
increasing TMD.
Forensic Analysis on Streaming Multimedia
Authors:   Digital Forensics & Cyber Security  Graduate Programme  Department Of Information Systems And Innovations Ghana Institute of Management & Public Administration  Greenhill, Accra, Ghana E-mail: etokan89@gmail.com, Okan Emmanuel Tettey
Published: July 2022

Since the advent of technology and digitalization of multimedia, there has been a massive increase in cybercrime. During streaming, with the availability of a network or internet source, multimedia; audio and visual can easily be accessed whiles being aired live. This technology dates as far back as 1990s. Similar to still videos and images, the user is able to download, pause, reverse or forward the show. The ability to stream multimedia has made it easier for users to partake or retrieve multimedia from the comfort of their homes, offices or personal spaces without necessarily being present. However, there are several challenges that affect the functionality of this technology, slow network connection and cybercrime. The issue of slow network may easily be handled by network providers, but cybercrimes has become rampant over the years. These attackers, also known as cyber criminals, use various activities to attack data. Some of their activities include phishing, data breach, identity theft and harassment. The paper has been written to assess forensic analysis of streaming multimedia. While exploring existing studies, it was realized that despite the rich availability of digital image forensics, video forensics hasn’t been explored much. This is because of the difficulty involved in analyzing the video data. Video data is always presented in a compressed form, unlike still images that are obtained in their original state. The compressed data often cancels or totally compromises the existing fingerprints, hence making it difficult to monitor or recover data. It was also revealed that, much has not been done so far as the research area is concerned. Keywords: Mobile Forensics, Cybersecurity, Streaming, Media, Video, Networks BOOK Chapter ǀ Research Nexus in IT, Law, Cyber Security & Forensics. Open Access. Distributed Free Citation: Emmanuel Tettey Okan (2022): Forensic Analysis On Streaming Multimedia Book Chapter Series on Research Nexus in IT, Law, Cyber Security & Forensics. Pp 221-226 www.isteams.net/ITlawbookchapter2022. dx.doi.org/10.22624/AIMS/CRP-BK3-P36