bluuebunny/crossref_metadata_2025 huggingface dataset:
Quality of life in patients with progressive keratoconus treated with corneal collagen crosslinking
Authors: Steinberg Johannes , Fischer Paul , Frings Andreas , Druchkiv Vasyl , Katz Toam , Linke Stephan J
Published: July 2023

Purpose
To analyze the vision-related quality of life (vr-QoL) in keratoconus (KC) patients after corneal crosslinking (CXL).
Methods
In this prospective clinical study, next to comparing the morphology and functional parameters of KC patients, we applied the “National Eye Institute Visual Functioning Questionnaire” (NEI-25) and the “Keratoconus Outcomes Research Questionnaire” (KORQ) to analyze the vr-QoL in 41 patients before, three and six months after CXL. Rasch analyses was applied to verify the measurement precision of the KORQ in our study population.
Results
We did not find statistically significant changes of the corneal morphology and the best corrected visual acuity after CXL. The NEI-25 questionnaires did not show statistically significant changes throughout the follow-up period. Except from single items, the main scores of the KORQ also did not demonstrate statistically significant changes. Rasch analyses revealed a high measurement precision of the KORQ within our population.
Conclusion
We could demonstrate a stable (not-improving) vr-QoL after CXL in patients with progressive KC. Based on our findings we suggest very early CXL treatment in KC patients that are at high risk of progression.
Prediction of Hydration Properties and Microstructure Development of Cement Mortar Using Virtual Cement and Concrete Testing Laboratory
Authors: Rastogi Hrishika , Moharana Sumedha , Subhash Smrithy
Published: July 2023

Hydration of cement is a complex phenomenon involves a simultaneous interaction between various compounds at the microscopic level. The proper monitoring of the hydration process of cement provides a better understanding of the hydration mechanism of build concrete along with increased workability, durability, and strength. The experimental techniques adopted for determining hydration and mechanical properties of cement compounds can be modelled using computational modelling tools such as the Virtual Cement and Concrete Testing Laboratory (VCCTL). This study mainly aims to predict the properties of ordinary Portland and pozzolanic cement mortar indigenous to India using VCCTL. The material data required as input parameters for creating virtual cement and fly ash are obtained from the previous studies. The calculated hydration and strength properties, such as heat of hydration, chemical shrinkage, degree of hydration, compressive strength and microstructure development of previous studies are validated using the VCCTL.
What exactly does the PfK13 mutation in Plasmodium falciparum change?
Authors: Si Wenwen , Zhao Yuemeng , Qin Xixi , Huang Yixuan , Yu Jing , Liu Xiao , Li Yanna , Yan Xiaoli , Zhang Qingfeng , Sun Jun
Published: July 2023

The emergence and development of artemisinin resistance threaten global malaria control and elimination goals, thereby prompting research on the mechanisms of malaria parasite resistance. The mutation of Plasmodium falciparum Kelch 13 ( PfK13) protein is associated with artemisinin resistance, but the unique or common mechanism by which it leads to this resistance is unclear. By analyzing the different effects of PfK13 mutation on the P. falciparum transcriptome and proteome at the different stages, we found that PfK13 mutation did not significantly change glycolysis, TCA, pentose phosphate pathway (PPP) and oxidative phosphorylation but reduced the expression of reproduction- and DNA synthesis-related genes. Moreover, the reduced number of the merozoite, decreased amount of hemozoin, and slowed growth of P. falciparum 3D7C580Y were consistent with the changes, suggesting that the PfK13 mutation reduces hemoglobin ingestion, leading to artemisinin resistance, likely by decreasing the parasites' need for haem and iron. This study helps elucidate the mechanism of artemisinin resistance caused by the PfK13 mutation.
Robust adaptive Control for the DC-DC Buck-Boost Converter
Authors: Oucheriah Said
Published: July 2023

A robust adaptive nonlinear controller is developed to tightly regulate the output voltage of the inverting buck- boost converter, a non-minimum phase system that presents major challenges in the design of stabilizing controllers. An observer is used to estimate the unknown load conductance. A rigorous stability analysis of the nonlinear closed-loop system is performed. The output of the converter is always guaranteed to converge to the desired voltage by a judicious choice of the initial conditions of the estimator. Simulation results are presented to validate the effectiveness of the proposed controller and to compare its performance against a novel robust proportional- integral (PI)-type controller
Results Relating to the Existence of Solutions for Partial Differential-difference Fermat Type Equations in Cn
Authors: MONDAL RANA , KAISH IMRUL
Published: July 2023

Our study looks into the non-existence of transcendental entire solutions for partial differential-difference equation of Fermat typef(z)∂f(z)∂z1+∂f(z)∂z2+ .... +∂f(z)∂znm+ f(z + c)l = 1,where l, m are positive integers and c = (c1, c2, ...., cn) ∈ Cn\{0} with finite order constraintin Cn. Additionally, using the Nevanlinna theory of meromorphic functions in various complex variables, this article examines the existence and an explicit form of solutions to several Fermat-type partial differential-difference equations in Cn. We obtain conclusions about the existence and form of transcendental entire solutions for specific class of functional equation of the type of Fermat with more general form ofαf(z) + β1∂f(z)∂z1+ β2∂f(z)∂z2+ .... + βn∂f(z)∂zn2+ f(z + c)2 = eg(z),where α, βj (j = 1, 2, ..., n) are constants in C and g(z) form a polynomial in Cn with a finite order constraint. The conclusions offered as solutions to these equations have significantly improved the theorems previously proposed by Xu, Cao, Liu, Wang, Zhang, and Zheng [17, 32, 33, 34, 35]. The method used in this article is different from the one used in previous ones. The existence conditions and forms of transcendental entire solutions with a finite order of such equations are demonstrated by providing several examples.
2010 Mathematics Subject Classification. 30D35.
A Probabilistic Framework for Post-Disaster Recovery Modeling of Buildings and Utility Networks in Developing Countries
Authors: Opabola Eyitayo , Galasso Carmine
Published: July 2023

Post-disaster recovery is a significant challenge, especially in developing countries. Various technical, environmental, socioeconomic, political, and cultural factors substantially influence post-disaster recovery. As a result, methodologies relevant in developed nations may not be directly applicable in Global South contexts. This study introduces a probabilistic framework for modeling the post-disaster recovery of buildings and utility networks in developing countries. The proposed framework combines a building-level assessment of individual assets with a community-level assessment of utility networks to evaluate the post-disaster functionality state of a building portfolio. As part of the framework, a stochastic network analysis approach is proposed to estimate the recovery time of damaged buildings while accounting for technical, environmental, socioeconomic, political, and cultural factors, quantified using data gathered from past events. Similarly, a probabilistic modeling approach is proposed to quantify the utility network’s initial post-disaster outage levels. Specifically, empirical formulations for estimating the recovery time of an electric power network as a function of its initial post-disaster outage levels are calibrated using post-event data from developing countries. A case study is presented to illustrate the application of the proposed framework to model the post-earthquake recovery of a synthetic low-income residential community. The analysis showed that negative technical, environmental, socioeconomic, political, and cultural factors could amplify the reconstruction time of damaged buildings by a factor of almost three. The proposed framework can support decision-makers in disaster planning and management strategies for vulnerable low-income communities.
An algorithm for generating uplink complex nonorthogonal multiple access spreading codes to reduce execution time
Authors: amir
Published: July 2023

Non-orthogonal multiple access (NOMA)-assisted 5G wireless communication networks in uplink and downlink transmissions can provide the high demands of low latency, high data rate, massive connectivity, and high access speed without compromising security. Algorithms to produce minimal coherence (cross-correlation) codebooks are desired in various applications. The authors built an algorithm capable of generating complex NOMA spreading codes based on the equiangular tight frame (ETF) method. Execution time is one of the computer science terms that refer to the various stages of running software programs and determining the performance of programs. The created algorithm was reasonably fast to find a sufficient number of NOMA spreading codes that have the minimum cross-correlation. It modified the initial value with the algorithm to reduce execution time and generate complex value-spreading codes. This algorithm achieved the optimal cross-correlation for multiple access and implemented the lowest running time compared to the "best complex antipodal spherical code" (BCASC) method, the "approximate nearest neighbors’ best complex antipodal spherical code" (ANN BCASC) method, the "Dhillon et al" method, the "Medra et al" method, the "coherence-based Grassmannian codebook" (CBGC) method, the “Grassmannian package” method, the “original best complex antipodal spherical code" (ORIG-BCASC) method, and the "Grassmannian package" method. The algorithm achieved optimal coherence (maximum cross-correlation) for matrix dimension (m, n), where m, n denotes the size of the collection set of vectors in the Frame. The optimal coherence (maximum cross-correlation) is 0.4472 for (3, 6), 0.4714 for (3, 7), 0.3536 for (4, 7), 0.3780 for (4, 8), 0.4472 for (4, 16), 0.3333 for (5, 10), 0.3464 for (5, 11), 0.4082 for (5, 25), 0.2500 for (6, 9), 0.2887 for (6, 11), 0.3015 for (6, 12), and 0.3333 for (7, 28) with an enhancement the parameters number of iterations and tolerance value in time less than one second. Also, superior to the “Grassmannian package” method in execution time, also the execution time for BCASC, CBGC, and ORIG-BCASC methods was more than one second. The performed simulations verified the uplink spectral efficiency and total capacity rate after applying the spreading codes generated from the suggested algorithm. In conclusion, the proposed algorithm for generating NOMA spreading codes tokens based on complex ETFs and exported from our algorithm provided better performance and capacity than other multi-access signatures.
Inklusionssensible Lehrer*innenbildung goes digital. Forschung, Entwicklung und Strukturbildung von digitalisierten Aus-, Fort- und Weiterbildungsangeboten an der Universität Bielefeld
Authors: Schuldt Alessa , Lütje-Klose Birgit , Streblow Lilian , Heinrich Martin
Published: July 2023

In den vergangenen Jahren hat die fortschreitende Digitalisierung sämtliche Bereiche des gesellschaftlichen Lebens nachhaltig beeinflusst und verändert. Dies hat auch Auswirkungen auf unser Bildungssystem und geht mit vielfältigen Fragestellungen einher. So verwundert es aufgrund der zunehmenden Aktualität der Thematik nicht, dass ein reger bildungspolitischer und erziehungswissenschaftlicher Diskurs entfacht wurde, der sich mit den Herausforderungen und Chancen von digitaler Bildung befasst. Da durch den Einsatz digitaler Medien die Möglichkeit besteht, gesellschaftliche Teilhabebarrieren zu minimieren, werden die Themen Inklusion und Digitalisierung in jüngster Zeit immer häufiger im Verbund diskutiert. In Bezug auf die Lehrer*innenbildung stellt dabei vor allem die digitalgestützte Qualifikation für Inklusion noch ein Desiderat dar. Hieran anknüpfend stellt der folgende Beitrag Strategien der Digitalisierung in der inklusionssensiblen Lehrer*innenbildung an der Universität Bielefeld vor. Ausgehend von den standortunabhängigen wie auch -spezifischen Ausgangslagen sowie den Einstellungen und Interessen von Lehramtsstudierenden gegenüber dem Thema Digitalisierung wird der aktuelle Ist-Zustand an digitalen Aus-, Weiter- und Fortbildungsmaßnahmen am Hochschulstandort Bielefeld skizziert und der Stellenwert von digitalen Medien im Kontext der hochschulinternen Strukturentwicklung hervorgehoben.
 
Abstract
During the past few years the impact of digitalisation has had a huge impact on all areas of social life as our education system, for instance. Thus, it is not surprising that a lively discussion is being held that deals with the challenges and opportunities of digital education is conducted in the fields of education policy and educational sciences. Since the use of digital media offers the possibility of minimising barriers to participation in society, it might be meaningful to combine the discourses facing the topics of inclusion and digitalisation in terms of teacher education. However, digitally supported (pre-service) teacher trainings for an inclusive teacher education is a significant research gap which should attract more attention and research efforts. Based on this the following article presents strategies for the digitisation of an inclusion-sensitive teacher education as they are developed and used at Bielefeld University. So, the article gives a practical overview of how to combine the issues of digitisation and inclusion in order to build up a digital infrastructure for teacher education purposes.
Validation of the Korean version of the Spiritual Intelligence Self-Report Inventory(K-SISRI)
Authors:   Human Engagement Institute, Han Eunhye , Cho Taejun
Published: July 2023

The purpose of this study is to validate the Korean Spiritual Intelligence Self-Report Inventory(SISRI) originally developed by King and DeCicco(2009). The back translation method was used to verify the original meaning of the instrument. There were two data collection phases: the pilot and the main study. For the pilot test, the exploratory factor analysis was conducted with 207 adults were participated. As a result, 16 items were deleted due to unsatisfactory factor loading scores, but it was valid as a four-factor model of critical existential thinking(5 questions), conscious state expansion(4 questions), personal meaning production(4 questions), and transcendental perception(3 questions). Thereafter, the main data collection was implemented and 428 office workers were participated finally. The confirmatory factor analysis was conducted to verify the suitability of the model. This study has proven that K-SISRI is a reliable and valid instrument, expected to utilized both in academia and practical areas.
The Survival of Establishment of Restaurant Business in ‘District Unit Plan Area’: Focused on Seoul’s Three Downtown on D,U,P
Authors:   Korea Urban & Real Estate Association, Bang Bo-Ram , Lee Hee-Chung
Published: July 2023

As it has been 40 years since its implementation, it is necessary to diagnose the effectiveness of the District Unit Planning(D.U.P) system and systematically manage it. This study aims to identify the impact of D.U.P, including direct and indirect regulations and incentives related to local commercial districts, on the survival of Restaurants. Based on this, we aim to draw implications for the role of D.U.P and local commercial district management policies in the future. To this end, we used ‘Survival Analysis’ to identify the Survival Rate and influencing factors of Restaurants in Seoul as a whole and in each of Seoul's Three Downtown. The results showed that there was a difference in the survival rate of restaurants depending on whether or not a D.U.P was established, and that the survival rate and influencing factors of Restaurants differed by type of D.U.P and Three Downtown. These results suggest that D.U.P can be used to manage local commercial districts and that it is necessary to establish and operate D.U.P that are customized to each region.
Integrability and quench dynamics in the spin-1 central spin XX model
Authors: Tang Long Hin , Long David , Polkovnikov Anatoli , Chandran Anushya , Claeys Pieter W.
Published: July 2023

Central spin models provide an idealized description of interactions between a central degree of freedom and a mesoscopic environment of surrounding spins. We show that the family of models with a spin-1 at the center and XX interactions of arbitrary strength with surrounding spins is integrable. Specifically, we derive an extensive set of conserved quantities and obtain the exact eigenstates using the Bethe ansatz. As in the homogenous limit, the states divide into two exponentially large classes: bright states, in which the spin-1 is entangled with its surroundings, and dark states, in which it is not. On resonance, the bright states further break up into two classes depending on their weight on states with central spin polarization zero. These classes are probed in quench dynamics wherein they prevent the central spin from reaching thermal equilibrium. In the single spin-flip sector we explicitly construct the bright states and show that the central spin exhibits oscillatory dynamics as a consequence of the semilocalization of these eigenstates. We relate the integrability to the closely related class of integrable Richardson-Gaudin models, and conjecture that the spin-s central spin XX model is integrable for any s.
Late-time correlators and complex geodesics in de Sitter space
Authors: Aalsma Lars , Faruk Mir Mehedi , van der Schaar Jan Pieter , Visser Manus R. , de Witte Job
Published: July 2023

We study two-point correlation functions of a massive free scalar field in de Sitter space using the heat kernel formalism. Focusing on two operators in conjugate static patches we derive a geodesic approximation to the two-point correlator valid for large mass and at late times. This expression involves a sum over two complex conjugate geodesics that correctly reproduces the large-mass, late-time limit of the exact two-point function in the Bunch-Davies vacuum. The exponential decay of the late-time correlator is associated to the timelike part of the complex geodesics. We emphasize that the late-time exponential decay is in tension with the finite maximal entropy of empty de Sitter space, and we briefly discuss how non-perturbative corrections might resolve this paradox.
Ecología trófica y reproductiva del bagresito endémico Trichomycterus nigromaculatus (Siluriformes: Trichomycteridae) en el río Gaira, Colombia
Authors: Ibarra-Trujillo Eduardo J. , García-Alzate Carlos A.
Published: July 2023

El río Gaira, en Minca, SNSM, sufre una transformación acelerada de sus paisajes naturales, fomentada por actividades como el turismo y la agricultura. Esto es preocupante considerando que allí habita una diversidad de especies endémicas como el pez Trichomycterus nigromaculatus. El objetivo del trabajo fue analizar aspectos de la dieta y la reproducción de T. nigromaculatus. Para ello, se realizaron siete muestreos abarcando periodos hidroclimáticos del área de estudio. Los peces fueron capturados empleando una red de arrastre y una atarraya, y las variables fisicoquímicas se midieron in situ. Durante el estudio se analizó el contenido estomacal de 245 ejemplares de T. nigromaculatus a través de métodos numéricos, volumen y frecuencia de ocurrencia. Se calcularon factores como el índice de importancia alimentaria, el coeficiente de vacuidad, la amplitud del nicho trófico, el factor de condición y la sección reproductiva. Asimismo, se determinaron la proporción de sexos,  índice gonadosomático,  fecundidad, tallas mínima y media de madurez sexual y  diámetro de los ovocitos. El río Gaira, considerado mesotrófico con tendencia a la eutrofización, presentó un aumento del  pH y  la conductividad eléctrica del agua. Con respecto a la dieta de T. nigromaculatus, el coeficiente de vacuidad de los ejemplares fue de 13,88 %, y se observó un comportamiento omnívoro con principal consumo de larvas Simulium sp. e insectos. El factor de condición indicó que la especie estuvo bien alimentada. Se identificó una proporción sexual 1:1,5, con 73 machos y 50 hembras. Los machos alcanzaron la talla media de madurez sexual a los 90,46 mm (LE), y las hembras, a los 63,0 mm (LE ).  La relación gonadosomática indicó tres eventos reproductivos, en los que la fecundidad fue menor en bajas lluvias, con 194 ovocitos, y mayor en altas lluvias, con 369. El diámetro del ovocito fue de 0,07 mm en promedio.
Indiferenciar e suspender
Authors: Carvalho Ada Rízia Barbosa de , Pequeno Cristina Maria Costa da Silva , Santana Filho José Afrânio Alves de
Published: July 2023

Neste artigo, discutimos as redefinições nas técnicas de investigação, acusação e condenação de pessoas associadas ao “tráfico de drogas”, ao “crime organizado” e às “facções”, a partir de 2010 em Maceió, Alagoas. Nesse período, a cidade foi enquadrada como capital mais violenta do país, fazendo com que territórios e grupos já vitimizados pela violência letal se tornassem alvos de políticas de segurança mais punitivistas. Objetivamos abordar as experiências de articulação entre Judiciário, Ministério Público e Secretaria de Segurança Pública de Alagoas. Para isso, partimos do caso de uma pessoa incriminada, usando seu processo judicial seus relatos, para dialogar com relatos de atores do Sistema de Justiça e com as informações produzidas nos âmbitos da Segurança Pública em Alagoas e no Brasil. Concluímos que tais reformulações produzem uma zona de suspensão de garantias legais e de indiferenciação entre pessoas que vivem em territórios lidos de antemão sob a perspectiva do crime, do tráfico e da violência.
Uma análise crítica da reforma trabalhista implantada pela Lei nº 13.467/2017 a partir dos seus impactos no âmbito do desenvolvimento socioeconômico
Authors: Costa Furtado Rommel , Monteiro Seixas Luiz Felipe , Bezerra Fernandes Jamilly Beliza
Published: July 2023

O presente artigo pretende analisar os efeitos socioeconômicos ocasionados pela Lei nº 13.467/2017. Conhecida como Reforma Trabalhista, a referida lei alterou substancialmente a regulação do mercado de trabalho no país, e apesar do tempo, ainda suscita questionamentos sobre seus impactos. O objetivo da flexibilização das normas trabalhistas é a redução do custo do trabalho, e assim melhorar, numa perspectiva macroeconômica os indicadores econômicos do país. Através de pesquisa empírica, descritiva e bibliográfica se buscou identificar, analisar e registrar os problemas decorrentes da promulgação da Lei nº 13.467/2017. Concluindo, os autores, que os argumentos que fundamentaram a proposta legislativa foram na contramão do crescimento sustentável e uma sociedade digna, abrindo questionamento sobre a real necessidade de se flexibilizar a legislação trabalhista.
Recent Update on the Protective Potentials of Resveratrol against
Cisplatin-induced Ototoxicity: A Systematic Review
Authors: Alsaikhan Fahad , Jasim Saade Abdalkareem , Margiana Ria , Opulencia Maria Jade Catalan , Yasin Ghulam , Hammid Ali Thaeer , Nasretdinova Makhzuna Tahsinovna , Mahdi Ahmed B. , Farhood Bagher , Abedi-Firouzjah Razzagh , Jamialahmadi Tannaz , Sahebkar Amirhosein
Published: July 2023

Introduction:

Although cancer treatment with cisplatin is effective, dose-dependent adverse
effects such as ototoxicity occurs often, which limits its clinical use. The use of resveratrol
may alleviate the cisplatin-induced ototoxic effects. This study is aimed to review the potential otoprotective
effects of resveratrol against cisplatin-induced ototoxicity.

Method:

According to the PRISMA guideline, a systematic search was accomplished to identify
all relevant scientific papers on “the role of resveratrol against cisplatin-induced ototoxicity” in different
electronic databases up to May 2021. Fifty-five articles were screened based on a predefined
set of inclusion and exclusion criteria. Eight eligible studies were finally included in the
current systematic review. The in-vitro findings revealed that cisplatin administration significantly
decreased the HEI-OC1 cell viability compared to the untreated cells; however, resveratrol co-treatment
(in a dose-dependent manner) could protect HEI-OC1 cells against cisplatin-induced decrease
in cell viability.

Results:

Furthermore, the in-vivo finding showed a decreased value of DPOAE, and increased values
of ABR threshold, ABR-I, ABR-IV, and ABR I-IV interval in cisplatin-treated animals; in contrast,
resveratrol co-administration demonstrated an opposite pattern on these parameters.

Conclusion:

Thus, it can be mentioned that resveratrol co-treatment alleviates cisplatin-induced
ototoxicity. Mechanically, resveratrol exerts its otoprotective effects through various mechanisms
such as anti-oxidant, anti-apoptosis, and anti-inflammatory.
Group A β-hemolytic Streptococcal Pharyngitis: An Updated Review
Authors: Leung Alexander K.C. , Lam Joseph M. , Barankin Benjamin , Leong Kin F. , Hon Kam L.
Published: July 2023

Background:

Group A ß-hemolytic Streptococcus (GABHS) is the leading bacterial cause of acute pharyngitis in children and adolescents worldwide.

Objective:

This article aims to familiarize clinicians with the clinical manifestations, evaluation, diagnosis, and management of GABHS pharyngitis.

Methods:

A search was conducted in December 2022 in PubMed Clinical Queries using the key term “group A β-hemolytic streptococcal pharyngitis”. This review covers mainly literature published in the previous ten years.

Results:

Children with GABHS pharyngitis typically present with an abrupt onset of fever, intense pain in the throat, pain on swallowing, an inflamed pharynx, enlarged and erythematous tonsils, a red and swollen uvula, enlarged tender anterior cervical lymph nodes. As clinical manifestations may not be specific, even experienced clinicians may have difficulties diagnosing GABHS pharyngitis solely based on epidemiologic or clinical grounds alone. Patients suspected of having GABHS pharyngitis should be confirmed by microbiologic testing (e.g., culture, rapid antigen detection test, molecular point-of-care test) of a throat swab specimen prior to the initiation of antimicrobial therapy. Microbiologic testing is generally unnecessary in patients with pharyngitis whose clinical and epidemiologic findings do not suggest GABHS. Clinical score systems such as the Centor score and McIssac score have been developed to help clinicians decide which patients should undergo diagnostic testing and reduce the unnecessary use of antimicrobials. Antimicrobial therapy should be initiated without delay once the diagnosis is confirmed. Oral penicillin V and amoxicillin remain the drugs of choice. For patients who have a non-anaphylactic allergy to penicillin, oral cephalosporin is an acceptable alternative. For patients with a history of immediate, anaphylactic-type hypersensitivity to penicillin, oral clindamycin, clarithromycin, and azithromycin are acceptable alternatives.

Conclusion:

Early diagnosis and antimicrobial treatment are recommended to prevent suppurative complications (e.g., cervical lymphadenitis, peritonsillar abscess) and non-suppurative complications (particularly rheumatic fever) as well as to reduce the severity of symptoms, to shorten the du-ration of the illness and to reduce disease transmission.
DATA-TYPE ADJUSTMENT FOR RESIDENTIAL PROPERTY VALUATION IN JAKARTA: AN EXPLORATORY STUDY
Authors: Riyanto Edy , Wahyudi Eri
Published: July 2023

Valuers model market behaviour to estimate market value in property valuation. This requires a sufficient number of arm’s length transaction price as comparables. In the Indonesian context, this proves to be difficult given the lack of market transparency. Thus, valuers often rely on asking price in their analysis. This may affect the accuracy of their value estimate as asking price does not represent property market. Asking price needs to be adjusted to arm’s-length transaction better. This research seeks to study the magnitude of such adjustment. For this purpose, asking price and their corresponding transaction price of 331 properties in Jakarta were analysed. A questionnaire was also administered to capture the adjustment commonly used by valuation practitioners. The data shows that on average, asking price is 6% higher than its transaction price with no significant differences across areas in Jakarta. This is far below the 14% average adjustment used by valuers in their practice.
IMPLEMENTATION OF ARTIFICIAL NEURAL NETWORK FOR STATE – OWNED ASSETS FORECASTING OF ROOM RENTAL PRICES IN INDONESIA
Authors: Lathifah Yusrina , Setiya Tanda , Ubed Roby Syaiful
Published: July 2023

Leasing is a state-owned assets utilization scheme that needs to be optimize because of its easy to find objects and large potential for non-tax revenue. In the city of Yogyakarta, the economy grows above the national average, this is supported by the mobility of tourists, overseas students, and businessman. The characteristics of the regional economy are suitable for the optimization of state-owned assets through leasing scheme in the form of lodging room. The author tries to develop a state-owned assets leasing price forecasting model for lodging room using an Artificial Neural Network to capture the potential state revenue. By using market data for lodging room rental from the OYO website, author create a model architecture with the backpropagation algorithm. Analysis results of this study indicate that the obtained network model achieves an accuracy of 97.5%. There are 25 state-owned assets buildings that can be projected as objects of lodging space rental utilization with a predicted rental value of IDR 108,570.00 to IDR 122,669.00 per day.
THE LEGALITY OF A PRIVATE LEASE SCHEME: PULL THE WOOL OVER THE PURCHASER’S EYES?
Authors: Abu Bakar Noraziah , Azmi Ruzita
Published: July 2023

The developer transferred a 99-year lease to the purchasers in a PLS instead of transferring the property ownership. Upon lease expiry, the property shall be reverted to the owner. In Malaysia, the Housing Development (Control & Licensing) Act 1966 (HDA 1966) regulates that a developer must transfer property ownership to the purchasers. "Build and lease" under the PLS does not comply with the law. This article is a conceptual paper that employs doctrinal research to analyse the legal position of property sale under a PLS and examine its compatibility with the existing law. The Courts' decisions on cases related to a PLS property are analysed to determine the PLS's implication on the purchasers' interest. Ultimately, to safeguard the purchasers, the amendment of the laws is recommended as a legal platform to legitimise the PLS.
THE IMPLEMENTATION OF VIRTUAL REALITY (VR) TECHNOLOGY IN REAL ESTATE INDUSTRY
Authors: Sahray Kholim , Sukereman Anis Syazwani , Rosman Siti Hasniza , Jaafar Nur Hanis
Published: July 2023

COVID-19 pandemic impact has accelerated the real estate industry to adopt technology evolution quickly. Due to the normalisation changes from the pandemic, all the physical real estate selling processes, including housing tours,  sales, and purchase agreements, could not be effectively done as before. In this situation, Virtual Reality (VR) has become a prominent approach for real estate  agents to improve their marketing strategies. This prospective study was designed to investigate the potential activities needed in VR implementation and to explore the importance of VR in influencing real estate marketing. Primary data was gathered from 60 real estate respondents using purposive sampling and descriptively analysed using SPSS software. The findings indicate that VR tours of the property, 360-degree visualisations, and visualisations of room furniture are the most potential activities needed in VR implementation. While VR is important because it indicates detailed information about the property, provides high-quality photos, and is a good investment opportunity. Overall, this study provides insights into how VR technology can help realtors survive in the  evolving real estate industry.
POTENTIAL OPPORTUNITIES OF BLOCKCHAIN TECHNOLOGY IN STREAMLINING THE MALAYSIAN COMMERCIAL OFFICE BUILDING OPERATION MANAGEMENT PROCESS
Authors: Jasimin Tuti Haryati , Mohd Ali Hishamuddin , Mohamed Razali Mohamad Najib , Mohd Daud Salwani
Published: July 2023

Managing commercial real estate is extremely complex and cumbersome and involves many stakeholders who provide access to and modify a variety of information. This led to some common issues with traditional commercial real estate management such as lack of transparency, third-party interference, the complexity of the agreements, record keeping and security, and absence of real-time data. Accordingly, blockchain technology is anticipated to address the issues of data openness, trustworthiness, and correctness in the global real estate market. This research aims to discover the potential opportunities that blockchain could offer in streamlining the commercial office building operation management process. A conceptual framework of blockchain-based technology adoption in the current Malaysian commercial office building operation management process was developed based on the literature review and focus group discussion (FGD). The framework was underpinned by four core operation management that emerge from the research findings including financial, administrative, technical, and promotional management.
ASSESSMENT OF ECONOMIC WORTH OF GREEN ROOF: A CASE STUDY IN PUTRAJAYA
Authors: Mohamad Hamzah Firdaus , Mat Sulaiman Mohd Khairul Azhar , Harun Zambri , Kamari Azwan , Abd Manaf Muhammad Zaki
Published: July 2023

The current global temperature rise has affected local climate change issues and increased the energy usage for the building cooling process. Following this, the roof components have been identified to contribute the building heating effect due to exposure for more than 10 hours a day which at the same time secretes 70% of the sun's radiation. As an alternative, the green roof concept approach potentially reduces the effects of internal heat and operating costs of cooling the building while providing an investment return for the desired period. This study aims to measure the level of effectiveness of the building green roof concept on the building cooling rate and its profitability implications. Two objectives have been set. First, to compare the effects of concrete and green roof applications on energy consumption and operating costs for the cooling effects of air-conditioned buildings (active systems). Second, to evaluate the maintenance cost and profitability of applying the green-roofed building concept in terms of periodic return on investment. The findings of this study are seen to help the government and relevant agencies consider using the green roof concept in the physical construction of buildings in the future.
LEGAL CONSTRUCT OF VILLAGE-OWNED SPRINGS MANAGEMENT AS A VILLAGE GOVERNMENT ASSET
Authors: Wirawan Aditya , Raharjo Taufik , Ubed Roby Syaiful , Yudanto Ambang Aries
Published: July 2023

This study aims to develop the management provisions of the springs in the Law on Water Resources. This study uses secondary data in the form of books, journals, or other legal materials. Data and information gathered were analysed. The result of the research is to build the concept of prohibition in the context of sustainable asset management based on the Villages’ Sustainable Development Goals (SDGs Desa). One of the pillars of SDGs is Clean Water and Sanitation for Villages. Based on the research, the prevalence of water attractions that utilize springs creates new challenges in managing assets. One of the objectives of village-owned springs management for residents is to get clean water that is decent and can be consumed. The results of this study mainly recommend the government to formulate a policy to separate the springs from the tourist attractions. With these considerations, it is necessary to arrange regulations and provide legal certainty for central government, village government, management of water attractions, the private sector, and the society, as well as develop an incentive system for tourist attractions managers to separate the springs from tourist attraction area. tour. The results of this study can be used as references to analyse in formulating policies on springs’ management to obtain decent clean water, that can be consumed for the community and is sustainable.
The Concept and Nature of Armed Attacks in Educational Organizations
Authors: Mamedov Sh. G.
Published: July 2023

Relevance. The article is devoted to characterizing the content of such a phenomenon as "armed attacks in educational organizations." Based on the study of the considered crimes of past years, the main elements characterizing the investigated illegal act are distinguished and its definition is given, which contributes to the distinction between acts of armed attacks in educational institutions from other violent crimes in educational institutions. In a historical retrospective, the origin of the concept of school shooting is investigated, the terminological content of this concept is studied. Based on an analysis of the opinions of a number of scientists, modern realities and features of Russian legislation, the concept of armed attacks in educational organizations is deduced.The purpose. The development of a modern concept of armed attack in educational organizations, containing signs delimiting this act from other violent crimes in educational organizations.The objectives. Based on known cases of acts of mass violence in educational organizations, highlight the main signs of armed attacks in educational organizations and systematize them to formulate an exact concept.Methodology. In the process of working on the study, theoretical research methods were used (analysis and synthesis, induction and deduction, mental modeling), a comparative legal approach.Results. In the course of the study, the concept of armed attack in educational organizations was proposed as a pre-planned act of armed attack in an educational organization committed by persons directly or indirectly associated with an educational institution in order to cause death to an indefinite circle of persons.Conclusions. The study made it possible to come to the conclusion that the signs contained in the concept of armed attack in educational organizations will clearly distinguish the investigated illegal act from other violent acts committed in educational organizations.
The Formation of the Hotel Business in Russia (XI – XVIII Centuries)
Authors: Goryushkina N. E. , Voroshilova O. L.
Published: July 2023

Relevance. The article examines the process of the establishment of the hotel business in Russia. The relevance of the topic under consideration is unconditional in view of its low coverage in the scientific literature and its importance for the formation of a general concept of the development of the hotel industry in the country.The purpose is to highlight the main stages of the establishment of the hotel business in Russia.Objectives: to determine the degree of state regulation of the activities of "hotels"; to name the types of hotel establishments in different historical periods; to assess the level of service.Methodology. The article is based on the principles of historicism, consistency and objectivity. In addition to them were the methods of a special plan – hermeneutic, comparative legal and historical-typological.Results. The process of establishment of the hotel business in Russia was a long one, inextricably linked with the formation and development of Russian statehood. Hotel establishments of various types were arranged, as a rule, in cities or on crowded roads. They provided accommodation, catering services, and, at the same time, strengthened trade ties, created conditions for cultural exchange. Hospitality was a characteristic feature of the Russian people. In the pre-Mongol period, reception and accommodation services were provided by guest houses, inns, camps, churchyards. Under the influence of the Mongol-Tatars, Yamsky stations appeared as hotels on the roads of Russia. Since the beginning of the XVIII century, the country's hotel network has been expanding at the expense of European-type establishments: inns, herbergs. The state has been leaving the hotel business outside the zone of active regulation for a long time. The activities of the "hotels" were subordinated to customary law. The first attempts to establish hotel standards date back to the XIV century . During the formation of the unified Russian state, activity in hotel management increased. In Peter's time, the government's policy was aimed at modernizing service quality standards, expanding the scope of hotel services provided, improving taxation, and unifying the hotel chain.Conclusion. The state of the hotel industry was a qualitative reflection of the political and socio-economic processes in the country.
Formation of Cluster Systems in Chaotic Condensed Media
Authors: Melnikov G. А. , Ignatenko N. М. , Suchilkin V. V. , Gromkov А. S.
Published: July 2023

Purpose. The study of cluster formation in a system of chaotically moving and interacting particles taking into account the Efimov effect and the "golden" section.Methods. Methods of mathematical modeling, quantum mechanics, a model of solid spheres, and a cluster model were used.Results. Within the framework of the proposed work, it is noted that in a three-particle system of particles, it is possible to form their spatial configuration in the form of a "golden" triangle, and in the case of an excited state of two particles, the third particle is far enough away from the other two, it is this configuration that corresponds to the conditions for the occurrence of the Efimov effect in a three-particle system.Based on the mathematical formalism of the description of self-organization processes in the work, it is shown that in chaotic environments within the framework of the Efimov model, with the involvement of the "golden" section in the mutual arrangement of three interacting particles, it is possible to form disk-shaped clusters containing a "magic" number of particles. In the structure of these clusters, the formation of quantum-dimensional regions in the form of a torus is possible. The parameters of such areas are defined.Conclusion. The described model of the formation and decay of disk-shaped clusters, taking into account the Efimov effect and the "golden" section rule, allows us, without resorting to a complex solution of equations in the three-body problem, to obtain important relations following from strict theories. The proposed approach implies the possibility of self-organization of clusters and the formation of quantum-dimensional regions in their structure, for example, in the form of a torus with a potential well, capable of capturing charged particles and determining their energy spectrum, as well as explaining the appearance of spectral bands in the IR spectra of substances.The proposed approach may be of practical importance, for example, for predicting the IR spectra of liquids, the presence of quantum dots in liquids with a wide spectrum of excitation from UV to IR radiation.
Regularities of Changes in the Physico-Mechanical and Corrosion Properties of Reinforcement Steel Grade 23Kh2G2T
Authors: Kutepov S. N.
Published: July 2023

The purpose of the work was to study of the regularities of changes in the physico-mechanical and corrosion properties of reinforcing steel 23Kh2G2T in hot-rolled and heat-treated (furnace tempering) states.Methods. The study of the physical and mechanical properties and resistance (long-term corrosion resistance) of bar reinforcement to stress corrosion cracking (SCC) was carried out on experimental melts of steel grade 23Kh2G2T. The choice of melts was made in such a way that their chemical composition corresponded, if possible, to the upper, middle and lower levels of the grade composition.To create experimental conditions as close as possible to operational ones, the tests were carried out in a boiling solution of nitrates (60% Ca(NO3)2 + 5% NH4NO3 + 35% H2O) at a temperature of 110°С and operating voltages σe = (0,1–0,8 )σВ. To elucidate the features of transformations occurring in steel during tempering, the temperature dependences of internal friction were taken from samples tempered at different temperatures.Processing of the results of the time dependence of the amplitude-independent internal friction was carried out according to the theory of Granato, Hikata, Lucke, which describes the kinetics of the return of internal friction due to the migration of point defects to dislocations.Results. It has been established that by controlling the chemical composition and technological regimes for the production of steel 23Kh2G2T, it is possible not only to sharply increase its resistance to cracking, but also to obtain a guaranteed complex of mechanical and corrosion properties. It was revealed that reinforcement made of 23Kh2G2T steel should be produced with mandatory tempering. The greatest resistance to stress corrosion cracking with practically unchanged strength for reinforcement made of steel 23Kh2G2T is provided by 2-hour tempering in the temperature range of 350…400°С.Conclusion. The results obtained can be used to establish patterns of behavior of various types of ingot, powder and composite materials with high dispersion in phase and structural components in various conditions and states.
Adaptabilidad, Participación, Gradiente de Recursos, Afectividad y Capacidad Resolutiva en el Funcionamiento Familiar.
Authors: Araque Barboza Francis , Julio Cajar Julieth , Beltrán De la Rosa Elisama , Hernández Flórez Jorge
Published: July 2023

Este artículo se centra en describir las percepciones de dinámicas familiares que poseen los habitantes de la urbanización “Mundo Feliz”, de Galapa, Colombia, y su capacidad de adaptación, participación, gradiente de recursos, afectividad y capacidad resolutiva en el funcionamiento familiar. Se aplicó el cuestionario APGAR a 100 familias del sector, enfocado en las variables en estudio. Finalmente, se evidenció a los actores sociales encuestados satisfechos en los aspectos de funcionalidad familiar; se perciben las relaciones y dinámicas como positivas, evidenciándose su adaptabilidad y afectividad en la resolución de problemas al interior de su familia.
Rapid Expansion of a Teledermatology Web Application for Digital Dermatology Assessment Necessitated by the COVID-19 Pandemic: Retrospective Evaluation
Authors: Muthiah Shareen , Craig Fiona E , Sinclair Siobhan , Wylie Grant , Torley Donna , Wong Terence H , Morton Colin A
Published: July 2023

Background

The COVID-19 pandemic necessitated a change in the provision of outpatient care in dermatology.

Objective

A novel, asynchronous, digital consultation platform was codeveloped with 2 National Health Service dermatology teams to improve access and enhance choice in outpatient care.

Methods

The rollout of the platform was accelerated during the initial COVID-19 lockdown, and its wider use across 2 Scottish health boards was retrospectively evaluated. Integrated with the hospital booking system and electronic patient record, the platform provides an alternative to face-to-face consultations, using information and images submitted by the patients.

Results

In total, 297 new patient consultations and 108 return patient consultations were assessed, and 80% (324/405) of the images submitted were of satisfactory quality. The consultations were, on average, 3 minutes shorter than equivalent face-to-face interactions, and a total of 5758 km of patient travel was avoided. Outcomes included web-based reviews (66/405, 16.3%), face-to-face reviews (190/405, 46.9%), biopsies (46/405, 11.4%), discharge (89/405, 22%), and other treatments or investigations (14/405, 3.5%). High levels of patient satisfaction (92/112, 82.1%) were reported.

Conclusions

Digital dermatology assessments are now included in the choices for consultation types that are available to patients, helping to augment service capacity during pandemic recovery.