bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Design of IoT Dengue Alert Supervisions System with RFID Access
Authors: Mamat W M K W , Kassim M , Shahbudin S , Ya’acob N 
Published: October 2021

Abstract
This research presents a development of a patient’s Dengue Alert Supervisions (DAS) System. The system is designed adaptively to alert patients and can be monitored over the Microsoft Windows Interfacing Applications system. The purpose is to alert patients on dengue attacks if they are possibly infected with dengue. Problem identifies that patients are difficult and hard to go for regular medical check-ups especially to the hospital. They face issues like long queues and long waiting times at public hospitals and it takes time to diagnose the dengue attacks. The objective of this system is to design a handy system for dengue detectors and to accurately warn the patients so that, they are being treated properly. The elements designed in this system comprised of a temperature sensor and blood dengue kit which is combined with push buttons as a tool to determine the condition of blood cells. This system used Radio-Frequency identification (RFID) access card to detect personal details. The database is directed to Windows application s on the DAS system. Results present the value of the blood level of infected dengue and body temperature in an online graph. The data can automatically send to hospitals online and access by medical officers on current situations. The system is beneficial to society as it is an essay system that can provide the user with simple and timely feedback. It would also be a significant invention to medical officers in diagnosing patients with much easier and quicker collection data using the Internet of Things (IoT).
High Frequency MOSFET Charging Circuit Using Series Parallel DC-DC Resonant Converter for Wireless Power Application
Authors: Nuawi N A A , Zin M F M , Kadir E A , Seroji M N 
Published: October 2021

Abstract
This paper proposes a new circuit topology of high frequency switching DC-DC Series Parallel Loaded Resonant Converter (SPLRC). The circuit is proposed to be used for a wireless power transmission application that required fast-charging operation. Most of the components used here are low-cost and commercially available in the market. Then, the purpose circuit is transformed into a different equivalent circuit that can efficiently analyze AC and DC modes. For each model, the operation for the converter is first described and explained. A full detailed circuit simulation is then carried out to find out the workability of the purpose converter. From the simulation, optimization is carried out. Here the components value is obtained. MATLAB R2018A is used for simulation purposes rather than being tested again using PSIM software to further prove the validity of the model. All the finding is explained and discussed, here, from the simulation result, it is confirmed that a high-frequency switching circuit is operated as expected.
Effect of Petroleum-Based Oil Towards Physicochemical Properties of Natural Rubber-Based Magnetorheological Elastomers
Authors: Zaki N M , Yunus N A , Yusoff M S , Ahmad F , Wahid N 
Published: October 2021

Abstract
This study presents an investigation of the effect of magnetorheological elastomers (MREs) using petroleum based-oil (PBO) as dispersing aids. The inhomogeneous dispersion and mobility of magnetic particles within the elastomer matrix result in poor MREs performance. Isotropic natural rubber (NR) based MREs were fabricated by homogeneously mixed with the addition of different ratios of naphthenic oil (NO) to aromatic oil (AO), whereby NO 1(100:0), NO 2 (70:30), NO 3 (50:50), and NO 4 (30:70), correspondingly. The cure characteristics, morphological, magnetic properties and thermal analyses were conducted. Based on the results, NO 1 leads the best results for microstructure observation and magnetic properties of the MREs. Meanwhile, NO 2 mixed with AO showed an improvement in curing characteristics and thermal analyses compared to other samples. In summary, the ratio of NO 1 and NO 2 is considered the preferable dispersing aids for MREs compared to NO 3 and NO 4 due to the structural compound in the oil that enhanced the characteristics of the NR-based MREs.
Design and development of student attendance system using QR-Code for UiTM Cawangan Terengganu
Authors: Hamzah S S , Bahrin U F , Yasin S N S , Eri Z D , Majid H A M A 
Published: October 2021

Abstract
This paper describes the development of student attendance using QR-code forUiTM Kuala Terengganu. The existing or manual attendance in Universiti Teknologi Mara Kuala Terengganu Cawangan Terengganu Kampus Kuala Terengganu (UiTMCTKKT) requires lecturer to records student attendance in attendance sheet, calculate the percentage of student attendance manually and give warning letter to the student by hand. There are several problems may occur if lecturer still using manual method to take student attendance such as lost and damaged the attendance sheet, heavy usage of papers, time limitation, and wrong calculation while calculating the attendance percentage. This project work aims to assist the lecturer in taking student attendance, to automatically calculate attendance percentage, generate warning letters to the student and lastly preventing fraudulent activities by the student. This system is developed by using the System Development Life Cycle (SDLC) waterfall model.
Potential and Opportunities of Building Information Modeling (BIM) For Housing Maintenance
Authors: Sarman A M , Jaison C , Mazlan E M , Nazeri N N 
Published: October 2021

AbstractBuilding Information Modelling (BIM) represents an approach that aims to form and manage information over the building’s whole life cycle. BIM has been mainly adopted for commercial or large scales building projects while being mostly neglected by small or residential building. Therefore, the objectives of this study are to evaluate the readiness of BIM implementation for housing maintenance in Sabah, to access the types of priority maintenance in house maintenance, and to determine the potential benefits to apply BIM for housing maintenance. This research is focused on the participants of the construction industry in Sabah to obtain their opinions towards the opportunities and strategy of Building Information Modeling (BIM) adoption in housing maintenance. Two method was done which was a pilot survey that was analyse using SPSS and Revit modelling. The result shows that most of the industry sectors had a moderate knowledge about BIM but they agree that it should be implemented by the authority and the percentage of willingness to change from the conventional maintenance to BIM was high. The 3 highest ranked of priority maintenance is the pipes linkage, electrical faults and sanitary appliance failure. Furthermore, a modeling is created using Revit application and access of information which called the Level of Detail (LOD) regarding the items in houses is easily obtain using schedule list for the purpose of maintenance.
Construction of a Tributyrin Calibration Curve using High Performance Liquid Chromatography
Authors: Atan F , Mohamed A H , Dzulkifli N N , Zain Z M , Ahmad N M 
Published: October 2021

AbstractMost of the explored research works on Triglycerides or any of the Triglycerides families was based on the profiling identification than a quantification. To quantify them, a calibration curve needs to be constructed at a certain range of concentration. In this study, the calibration curve for the shortest chain of Triglycerides namely Tributyrin was accomplished using high performance liquid ultraviolet detector with two variables parameters. The composition of mobile phase for tributyrin was found optimum using 50:50 acetonitrile: acetone while the optimum flowrate for tributyrin was 0.55 mL/min using a 20 μL injection, constant condition at 35°C and 215 nm wavelength. The calibration curve of standard tributyrin was found linear from 0.0025-0.0375 mM with the correlation coefficient (R2) of 0.986. The developed calibration curve could serve as a future platform for the quantification of TB in real samples with various matrixes such as food and serum.
Vladimir Abramovich Rokhlin and algebraic topology
Authors: Buchstaber Victor 
Published: October 2021

The article considers the scientific heritage of V. A. Rokhlin in algebraic topology from the point of view of the modern development of mathematics and shows the influence of his results on the development of algebraic topology up to the present. The second part of the article contains new results with fairly detailed sketches of their proofs. There we introduce the notion of partially framed manifolds, which naturally arise in the study of the characteristic classes of vector bundles over the loop space

Ω
S
U
(
2
)
=
Ω
S
P
(
1
)

\Omega SU(2)=\Omega SP(1)

. We obtain theorems on the divisibility of the signature of such manifolds as a result of calculations of characteristic classes with values in complex and quaternionic cobordism.
Circular orders, ultra-homogeneous order structures, and their automorphism groups
Authors: Glasner Eli , Megrelishvili Michael 
Published: October 2021

We study topological groups

G
G

for which either the universal minimal

G
G

-system

M
(
G
)

M(G)

or the universal irreducible affine

G
G

-system

I

A
(
G
)

I\!A(G)

is tame. We call such groups “intrinsically tame” and “convexly intrinsically tame”, respectively. These notions, which were introduced in [Ergodic theory and dynamical systems in their interactions with arithmetics and combinatorics, Springer, Cham, 2018, pp. 351–392], are generalized versions of extreme amenability and amenability, respectively. When

M
(
G
)

M(G)

, as a

G
G

-system, admits a circular order we say that

G
G

is intrinsically circularly ordered. This implies that

G
G

is intrinsically tame.

We show that given a circularly ordered set

X
∘

X_\circ

, any subgroup

G
≤

A

u
t

(

X
∘

)

G \leq {\mathrm {A}ut}\,(X_\circ )

whose action on

X
∘

X_\circ

is ultrahomogeneous, when equipped with the topology

τ
p

\tau _p

of pointwise convergence, is intrinsically circularly ordered. This result is a “circular” analog of Pestov’s result about the extreme amenability of ultrahomogeneous actions on linearly ordered sets by linear order preserving transformations. We also describe, for such groups

G
G

, the dynamics of the system

M
(
G
)

M(G)

, show that it is extremely proximal (whence

M
(
G
)

M(G)

coincides with the universal strongly proximal

G
G

-system), and deduce that the group

G
G

must contain a non-abelian free group.

In the case where

X
X

is countable, the corresponding Polish group of circular automorphisms

G
=

A

u
t

(

X
o

)

G={\mathrm {A}ut}\,(X_o)

admits a concrete description. Using the Kechris–Pestov–Todorcevic construction we show that

M
(
G
)
=

S
p
l
i
t

(

T

;

Q

∘

)

M(G)={\mathrm {Split}}(\mathbb {T};\mathbb {Q}_{\circ })

, a circularly ordered compact metric space (in fact, a Cantor set) obtained by splitting the rational points on the circle

T

\mathbb {T}

. We show also that

G
=

A

u
t

(

Q

∘

)

G={\mathrm {A}ut}\,(\mathbb {Q}_{\circ })

is Roelcke precompact, satisfies Kazhdan’s property

T
T

(using results of Evans–Tsankov), and has the automatic continuity property (using results of Rosendal–Solecki).
Relationship between depression and olfactory sensory function: a review
Authors: Athanassi Anna , Dorado Doncel Romane , Bath Kevin G , Mandairon Nathalie 
Published: October 2021

Abstract
Links between olfactory sensory function and effect have been well established. A robust literature exists in both humans and animals showing that disrupting olfaction sensory function can elicit disordered mood state, including serve as a model of depression. Despite this, considerably less is known regarding the directionality and neural basis of this relationship, e.g. whether disruptions in sensory function precede and contribute to altered mood or if altered mood state precipitates changes in olfactory perception. Further, the neural basis of altered olfactory function in depression remains unclear. In conjunction with clinical studies, animal models represent a valuable tool to understand the relationship between altered mood and olfactory sensory function. Here, we review the relevant literature assessing olfactory performance in depression in humans and in rodent models of depressive-like behavioral states. Rodents allow for detailed characterization of alterations in olfactory perception, manipulation of experiential events that elicit depressive-like phenotypes, and allow for interrogation of potential predictive markers of disease and the cellular basis of olfactory impairments associated with depressive-like phenotypes. We synthesize these findings to identify paths forward to investigate and understand the complex interplay between depression and olfactory sensory function.
Development and Validation of a Novel LC–MS/MS Method for the Quantitation of 19 Fingerprint Phytochemicals in Salvia Species: A Chemometric Approach
Authors: Yilmaz Mustafa Abdullah , Ertas Abdulselam , Yener Ismail , Olmez Ozge Tokul , Firat Mehmet , Temel Hamdi , Ozturk Mehmet , Kolak Ufuk 
Published: October 2021

Abstract
Being traditionally utilized mainly as appetizers and herbal teas as well as used to ease abdominal pains, colds and gastrointestinal issues, the genus Salvia L. has gained significant consideration owing to its remarkable phytochemicals and industrial importance. The present study aimed to develop and validate an LC–MS/MS method for the qualitative and quantitative investigation of 19 fingerprint phytochemicals in six endemic Salvia species. The validation parameters of the developed LC–MS/MS method were repeatability (intermediate precision), recovery (accuracy), limits of detection and quantification, linearity and uncertainty (U% at 95% confidence level (k = 2)). Reversed-phase HPLC separation and mass spectrometry parameters were optimized for each analyte. Ethanol extracts of the studied Salvia species collected in three consecutive years were screened for their fingerprint phytochemicals by using the developed and validated LC–MS/MS method. Moreover, studied Salvia species were subjected to multivariate analysis such as principal component analysis techniques to demonstrate the variabilities in phytochemical contents by years and parts of the samples. Roots, flowers, leaves, branches and whole plant of the Salvia species collected in 2015, 2016 and 2017 were used for the analyses. It was observed that the roots and branches of Salvia species were similar in terms of their salvianolic acid A, caffeic acid, and 6,7-dehydroroyleanone components. Accordingly, apigenin, rosmarinic acid, luteolin 7-O-glucoside, caffeic acid, salvianolic acid B, and 6,7-dehydroroyleanone were notable phytochemicals that were present in the studied Salvia species.
Housing Cost Burden and Health Decline Among Low- and Moderate-Income Older Renters
Authors: Jenkins Morales Meghan , Robert Stephanie A 
Published: October 2021

Abstract

Objective
To examine the association between housing cost burden (HCB) and health decline among low- and moderate-income older renters in the United States.

Method
Baseline data include low- and moderate-income community-dwelling older renters (N = 1,064) from the nationally representative 2015 National Health and Aging Trends Study. HCB was defined as the percentage of monthly income spent on rent, categorized as “no HCB” (&lt;30%), “moderate HCB” (30%–49%), and “severe HCB” (≥50%). We used weighted logistic regression models to estimate whether HCB status in 2015 and change in HCB between 2015 and 2017 were associated with self-rated health decline and developing a new limitation related to activities of daily living (ADL) or instrumental activities of daily living (IADL) between 2015 and 2017.

Results
Older renters with severe HCB in 2015 were the most likely to develop a new ADL/IADL limitation (63.4%) over time (p &lt; .05). The association between HCB status in 2015 and self-rated health decline was not statistically significant, but older renters with persistent HCB had 1.64 times greater odds of self-rated health decline (p &lt; .05) and 2.01 times greater odds of developing a new ADL/IADL limitation (p &lt; .01), compared to older renters with no HCB at baseline and follow-up.

Discussion
Even in the short term, HCB contributes to health decline in later life. Efforts to promote equity and healthy aging in the community must consider how to best address housing affordability among the growing population of older renters.
Severe Acute Respiratory Syndrome Coronavirus 2 Seroassay Performance and Optimization in a Population With High Background Reactivity in Mali
Authors: Woodford John , Sagara Issaka , Dicko Alassane , Zeguime Amatigue , Doucoure M’Bouye , Kwan Jennifer , Zaidi Irfan , Doritchamou Justin , Snow-Smith Maryonne , Alani Nada , Renn Jonathan , Kosik Ivan , Holly Jaroslav , Yewdell Jonathan , Esposito Dominic , Sadtler Kaitlyn , Duffy Patrick 
Published: October 2021

Abstract

Background
False positivity may hinder the utility of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) serological tests in sub-Saharan Africa.

Methods
From 312 Malian samples collected before 2020, we measured antibodies to the commonly tested SARS-CoV-2 antigens and 4 other betacoronaviruses by enzyme-linked immunosorbent assay (ELISA). In a subset of samples, we assessed antibodies to a panel of Plasmodium falciparum antigens by suspension bead array and functional antiviral activity by SARS-CoV-2 pseudovirus neutralization assay. We then evaluated the performance of an ELISA using SARS-CoV-2 spike protein and receptor-binding domain developed in the United States using Malian positive and negative control samples. To optimize test performance, we compared single- and 2-antigen approaches using existing assay cutoffs and population-specific cutoffs.

Results
Background reactivity to SARS-CoV-2 antigens was common in prepandemic Malian samples. The SARS-CoV-2 reactivity varied between communities, increased with age, and correlated negligibly/weakly with other betacoronavirus and P falciparum antibodies. No prepandemic samples demonstrated functional activity. Regardless of the cutoffs applied, test specificity improved using a 2-antigen approach. Test performance was optimal using a 2-antigen assay with population-specific cutoffs (sensitivity, 73.9% [95% confidence interval {CI}, 51.6–89.8]; specificity, 99.4% [95% CI, 97.7–99.9]).

Conclusions
We have addressed the problem of SARS-CoV-2 seroassay performance in Africa by using a 2-antigen assay with cutoffs defined by performance in the target population.
No Consistent Evidence of Decreased Exposure to Varicella-Zoster Virus Among Older Adults in Countries with Universal Varicella Vaccination
Authors: Carryn Stephane , Cheuvart Brigitte , Povey Michael , Dagnew Alemnew F , Harpaz Rafael , van der Most Robbert , Casabona Giacomo 
Published: October 2021

Abstract

Background
Universal varicella vaccination might reduce opportunities for varicella-zoster virus (VZV) exposure and protective immunological boosting, thus increasing herpes zoster incidence in latently infected adults. We assessed humoral and cell-mediated immunity (CMI), as markers of VZV exposure, in adults aged ≥50 years.

Methods
We repurposed data from placebo recipients in a large multinational clinical trial (ZOE-50). Countries were clustered based on their varicella vaccination program characteristics, as having high, moderate, or low VZV circulation. Anti-VZV antibody geometric mean concentrations, median frequencies of VZV-specific CD4 T cells, and percentages of individuals with increases in VZV-specific CD4 T-cell frequencies were compared across countries and clusters. Sensitivity analyses using a variable number of time points and different thresholds were performed for CMI data.

Results
VZV-specific humoral immunity from 17 countries (12 high, 2 moderate, 3 low circulation) varied significantly between countries (P &lt; .0001) but not by VZV circulation. No significant differences were identified in VZV-specific CMI between participants from 2 high versus 1 low circulation country. In 3/5 sensitivity analyses, increases in CMI were more frequent in high VZV circulation countries (.03 ≤ P &lt; .05).

Conclusions
We found no consistent evidence of reduced VZV exposure among older adults in countries with universal varicella vaccination.

Clinical Trials Registration
NCT01165177.
What Are We Actually Talking About? Conceptualizing Data as a Governable Object in Overlapping Jurisdictions
Authors: Obendiek Anke Sophia 
Published: October 2021

Abstract
Data form an increasingly essential element of contemporary politics, as both public and private actors extend claims of their legitimate control in diverse areas including health, security, and trade. This paper investigates data governance as a site of fundamental normative and political ordering processes that unfold in light of ever-increasing inter- and transnational linkages. Drawing on the concept of jurisdictional conflicts, the paper traces the evolution of data governance in three cases of transatlantic conflicts as diverging definitional claims over data. The paper argues that these conflicts reveal varying conceptualizations of data linked to four distinct visions of the social world. First, a conceptualization of data as an individual rights issue links human rights with the promotion of sovereignty to a vision of data governance as local liberalism. Second, proponents of a security partnership promote global security cooperation based on the conceptualization of data as a neutral instrument. Third, a conceptualization of data as an economic resource is linked to a vision of the digital economy that endorses progress and innovation with limited regulation. Fourth, a conceptualization of data as a collective resource links the values of universal rights and global rules to a vision of global protection.