bluuebunny/crossref_metadata_2025 huggingface dataset:
Organic photoredox catalytic α-C(sp3)–H phosphorylation of saturatedaza-heterocycles
Authors: Yi Ming-Jun , Xiao Teng-Fei , Li Wen-Hui , Zhang Yi-Fan , Yan Pen-Ji , Zhang Baoxin , Xu Peng-Fei , Xu Guo-Qiang
Published: November 2021

Photoinduced C(sp3)–H phosphorylation was reported to rapidly install a phosphoryl group on the biologically useful saturatedaza-heterocycles with commercially available diarylphosphine oxide reagents by a novel organic photocatalyst.
Unusual structural transformation and luminescence response of magic-size silver(i) chalcogenide clusters via ligand-exchange
Authors: Wu Wei-Hong , Zeng Hui-Min , Yu Ze-Nan , Wang Chao , Jiang Zhan-Guo , Zhan Cai-Hong
Published: November 2021

Herein, the growth of magic-size silver(i) chalcogenide clusters from Ag32S3 to Ag45S6 is described, providing a ligand-exchange approach to access the size and luminescence of semiconductor silver(i) clusters.
Vibrational predissociation versus intramolecular vibrational energy redistribution (IVR) in rare gas⋯dihalogen complexes: IVR identified in Ar⋯I2(B, ν′) using velocity-map imaging
Authors: Makarem Camille , Wei Jie , Loomis Richard A. , Darr Joshua P.
Published: November 2021

Contributions from competing relaxation pathways can be difficult to identify, but direct evidence for IVR in the dissociation of excited-state Ar···I2(B, v') complexes was obtained using ion product velocity map imaging.
Anion–cation interactions in a series of salts with substituted Hphen, Hbpy and H2bpy cations and [W(CN)8]4− anion: polymer with “super-short” N–H⋯N hydrogen bridges containing exclusively anions and H+
Authors: Jurowska Anna , Hodorowicz Maciej , Kruczała Krzysztof , Szklarzewicz Janusz
Published: November 2021

Ten [W(CN)8]4− complexes with polypyridyl ligands were studied. Unique isocyanide CNH form was observed. The presence of paramagnetic centers, exclusively in a solid state, is connected with a very low energy bands, observed in the NIR spectra.
Neutral and cationic germanium(iv) fluoride complexes with phosphine coordination – synthesis, spectroscopy and structures
Authors: King Rhys P. , Levason William , Reid Gillian
Published: November 2021

Several series of Ge(iv) phosphine complexes with 1–4 fluoride co-ligands have been isolated and their spectroscopic and structural properties determined.
Theoretical mechanistic study of 4CzIPN/Ni0-metallaphotoredox catalyzed enantioselective desymmetrization of cyclicmeso-anhydrides
Authors: Liang Yujie , Dong Yujiao , Sun Guangyan , Su Zhongmin , Guan Wei
Published: November 2021

A radical mechanism and origin of high enantioselectivity of 4CzIPN/Ni0metallaphotoredox catalyzed enantioselective desymmetrization of cyclicmeso-anhydrides have been theoretically disclosed.
Precise control of the degree and regioselectivity of functionalization in nitro- and amino-functionalized di(trispyrazolylborato)iron(ii) spin crossover complexes
Authors: Ma Chenyang , Besson Claire
Published: November 2021

Di(trispyrazolylborato)iron(ii) spin-crossover complexes with a tunable degree, nature and position of functionalization can be obtained via pyrazole exchange.
KLn(MoO4)2 micro/nanocrystals (Ln = La–Lu, Y): systematic hydrothermal crystallization, structure, and the performance of doped Eu3+ for optical thermometry
Authors: Xu Zhixin , Du Panpan , Zhu Qi , Li Xiaodong , Sun Xudong , Li Ji-Guang
Published: November 2021

KLn(MoO4)2 has structure/morphology preference toward the size of Ln3+. The 5D0 and 5D1 energy levels of Eu3+ in layered KY(MoO4)2 showed an excellent performance in optical thermometry.
Regulating the *OCCHO intermediate pathway towards highly selective photocatalytic CO2 reduction to CH3CHO over locally crystallized carbon nitride
Authors: Liu Qiong , Cheng Hui , Chen Tianxiang , Lo Tsz Woon Benedict , Xiang Zhangmin , Wang Fuxian
Published: November 2021

Locally crystallized PCN is prone to form *OCCHO groups rather than *CH2O groups, regulating the endoergic C–C coupling step to a simultaneous exoergic reaction and changing the reaction pathway towards CH3CHO (selectivity of 98.3%) instead of HCHO.
A novel rapid synthesis of highly stable silver nanoparticle/carbon quantum dot nanocomposites derived from low-grade coal feedstock
Authors: Saikia Monikankana , Das Tonkeswar , Saikia Binoy K
Published: November 2021

Coal-based highly stable carbon quantum dot/silver nanocomposites.
Fluorescent multi-component polymer sensors for the sensitive and selective detection of Hg2+/Hg+ ions via dual mode fluorescence and colorimetry
Authors: Liu Kaiqi , Marin Luminita , Xiao Li , Cheng Xinjian
Published: November 2021

Fluorescent multi-component polymers, which are sensitive and selective to Hg2+/Hg+ through fluorescence and colorimetry, were synthesized by the Heck coupling reaction.
TiO2/g-C3N4heterojunction hollow porous nanofibers as superior visible-light photocatalysts for H2evolution and dye degradation
Authors: Liu Jing , Li Dianming , Liu Xiaofeng , Zhou Jie , Zhao Hong , Wang Nü , Cui Zhimin , Bai Jie , Zhao Yong
Published: November 2021

Hollow porous TiO2/g-C3N4exhibited high photocatalytic performance ascribed to multiple light reflections and fast photoelectron transport in heterojunctions.
Synergism of 1D/2D boride/MXene nanosheet heterojunctions for boosted overall water splitting
Authors: Ding Xinyu , Wang Xunyue , Song Wenwu , Wei Xiaoqing , Zhu Jinli , Tang Yanfeng , Wang Minmin
Published: November 2021

Transition metal boride (TMB) as a new type of catalyst has attracted much attention in recent years.
Constructing epitaxially grown heterointerface of metal nanoparticles and manganese dioxide anode for high-capacity and high-rate lithium-ion batteries
Authors: Zhang Jianwei , Huang Danyang , Wang Yuchen , Chang Liang , Yu Yanying , Li Fan , He Jia , Liu Dongqi , Li Chao
Published: November 2021

Au nanoparticles epitaxial growth on MnO2 can not only improves the Li ion migration rate but also catalyzes the transition of MnOx to Mn0. The heterointerface improves the electrochemical performance of the MnO2–Au anode.
Enhancement of patterned triboelectric output performance by an interfacial polymer layer for energy harvesting application
Authors: M Manikandan , Rajagopalan P. , Xu Shujia , Palani I. A. , Singh Vipul , Wang Xiaozhi , Wu Wenzhuo
Published: November 2021

To enhance the output performance of line patterned (LP) TENG, a thin layer of PEO and PVA was coated. Among these, the output performance of PEO coated LP TENG was enhanced and found to be 2-fold higher than that of the PVA coated device.
Femtosecond ultrafast pulse generation with high-quality 2H-TaS2 nanosheets via top-down empirical approach
Authors: Yu Qiang , Wang Shun , Zhang Yan , Dong Zhuo , Deng Haiqin , Guo Kun , Wang Tao , Shi Xinyao , Liu Fangqi , Xian Tianhao , Zhu Sicong , Wu Jian , Zhang Ziyang , Zhang Kai , Zhan Li
Published: November 2021

Tantalum disulfide (TaS2), an emerging group VB transition metal dichalcogenide, is emerging as a prototype for revealing basic physical phenomena and developing practical applications.
Overview of coumarin-fused-coumarins: synthesis, photophysical properties and their applications
Authors: Sarmah Manashi , Chutia Kangkana , Dutta Dhiraj , Gogoi Pranjal
Published: November 2021

This feature article highlights the synthesis of structurally unique coumarin-fused coumarins. The structure–activity relationships of these moieties for diverse applications based on their photophysical properties have been emphasized.
Deoxygenation reactions in organic synthesis catalyzed by dioxomolybdenum(vi) complexes
Authors: Suárez-Pantiga Samuel , Sanz Roberto
Published: November 2021

This review summarizes the recent advances in deoxygenation reactions of S–O, N–O and C–O bonds catalyzed by dioxomolybdenum(vi) complexes.
Inhibition of [FeFe]-hydrogenase by formaldehyde: proposed mechanism and reactivity of FeFe alkyl complexes
Authors: Zhang Fanjun , Woods Toby J. , Zhu Lingyang , Rauchfuss Thomas B.
Published: November 2021

The mechanism for inhibition of [FeFe]-hydrogenases by formaldehyde is examined with model complexes.
Finite‐time local piecewise control for parabolic PDEs with ODE output feedback
Authors: Li Manna , Mao Weijie
Published: November 2021

This paper is devoted to the finite‐time local piecewise control for parabolic partial differential equations (PDEs) by using dynamic output feedback control strategy, where the controller is designed as an ordinary differential equation (ODE). This makes the closed‐loop system PDE‐ODE coupled, which is employed to accurately describe the dynamics of the PDE system. According to the constructed PDE‐ODE coupled model, a local piecewise dynamic feedback control law is first proposed. Sufficient conditions on finite‐time stabilisation of the parabolic PDE‐ODE coupled system by the suggested feedback controller are then developed in the sense of both complete spatial measurement and incomplete spatial measurement of the observed output of the PDE system, respectively. Finally, the issues regarding the finite‐time stabilisation of the closed‐loop system is converted into the feasibility of matrix inequalities, and some simulation studies are provided to verify the effectiveness of the proposed results.
Relationship between Ca and Hα chromospheric emission in F-G-K stars: Indication of stellar filaments?
Authors: Meunier N. , Kretzschmar M. , Gravet R. , Mignon L. , Delfosse X
Published: November 2021

Context. Different relationships between the Hα and Ca II chromospheric emissions have been reported in solar-type stars. In particular, the time-series of emissions in these two lines are clearly anti-correlated for a few percent of the stars, contrary to what is observed on the Sun.

Aims. Our objective is to characterise these relationships in more detail using complementary criteria, and to constrain the properties of filaments and plages that are necessary to explain the observations.

Methods. We analysed the average level and variability of the Hα and Ca II emission for 441 F-G-K stars, paying particular attention to their (anti-)correlations on both short and long timescales. We also computed synthetic Hα and Ca II time-series for different assumptions of plage and filament properties and compared them with the observations.

Results. We were not able to find plage properties that, alone, are sufficient to reproduce the observations at all timescales simultaneously, even when allowing different Hα and Ca II emission relationships for different stars. We also specified the complex and surprising relationship between the average activity levels of both indexes, in particular for low-activity stars.

Conclusions. We conclude that plages alone are unlikely to explain the observed variety of relationships between Ca II and Hα emission, and that the presence of other phenomena like filaments may help to reconcile the models with observations.
Search for exoplanets around northern circumpolar stars
Authors: Jeong G. , Lee B.-C. , Park M.-G. , Bang T.-Y. , Han I.
Published: November 2021

Aims. We report the detection of long-period radial velocity (RV) variations in three giant stars, HD 19615, HD 150010, and HD 174205, using precise RV measurements.

Methods. These detections are part of the Search for Exoplanets around Northern Circumpolar Stars (SENS) survey being conducted at the Bohyunsan Optical Astronomy Observatory (BOAO). The nature of the RV variations was investigated by analyzing the photometric and line shape variations. We found no variability with the RV period in these quantities and conclude that the RV variations are most likely caused by planetary companions.

Results. Orbital solutions for the three stars yield orbital periods of 402 d, 562 d, and 582 d and minimum masses of 8.5 MJ, 2.4 MJ, and 4.2 MJ, respectively. These masses and periods are typical for planets around intermediate-mass stars, although some unclear interpretations and recent studies may being calling some planet convictions into question. Nevertheless, the SENS program is contributing to our knowledge of giant planets around intermediate-mass stars.
KMT-2021-BLG-0912Lb: a microlensing super Earth around a K-type star
Authors: Han Cheongho , Bond Ian A. , Yee Jennifer C. , Zang Weicheng , Albrow Michael D. , Chung Sun-Ju , Gould Andrew P. , Hwang Kyu-Ha , Jung Youn Kil , Kim Doeon , Lee Chung-Uk , Ryu Yoon-Hyun , Shin In-Gu , Shvartzvald Yossi , Cha Sang-Mok , Kim Dong-Jin , Kim Seung-Lee , Lee Dong-Joo , Lee Yongseok , Park Byeong-Gon , Pogge Richard W. , Abe Fumio , Barry Richard , Bennett David P. , Bhattacharya Aparna , Hirao Yuki , Fujii Hirosane , Fukui Akihiko , Itow Yoshitaka , Kirikawa Rintaro , Kondo Iona , Koshimoto Naoki , Matsubara Yutaka , Matsumoto Sho , Muraki Yasushi , Miyazaki Shota , Ranc Clément , Okamura Arisa , Rattenbury Nicholas J. , Satoh Yuki , Sumi Takahiro , Suzuki Daisuke , Ishitani Silva Stela , Toda Taiga , Tristram Paul J. , Yama Hibiki , Yonehara Atsunori , Cooper Tony , Dimitrov Plamen , Dong Subo , Drummond John , Green Jonathan , Hennerley Steve , Liu Zhuokai , Mao Shude , Maoz Dan , Penny Matthew , Yang Hongjing
Published: November 2021

Aims. The light curve of the microlensing event KMT-2021-BLG-0912 exhibits a very short anomaly relative to a single-lens single-source form. We investigate the light curve for the purpose of identifying the origin of the anomaly.

Methods. We model the light curve under various interpretations. From this, we find four solutions, in which three solutions are found underthe assumption that the lens is composed of two masses (2L1S models), and the other solution is found under the assumption that the source is comprised of binary stars (1L2S model). The 1L2S model is ruled out based on the contradiction that the faint source companion is bigger than its primary, and one of the 2L1S solutions is excluded from the combination of the poorer fit, blending constraint, and lower overall probability, leaving two surviving solutions with the planet/host mass ratios of q ~ 2.8 × 10−5 and ~ 1.1 × 10−5. A subtle central deviation supports the possibility of a tertiary lens component, either a binary companion to the host with a very large or small separation, or a second planet lying near the Einstein ring, but it is difficult to claim a secure detection due to the marginal improvement of the fit, lack of consistency among different data sets, and difficulty in uniquely specifying the nature of the tertiary component.

Results. With the observables of the event, it is estimated that the masses of the planet and host are ~ (6.9 M⊕, 0.75 M⊙) according to one solution and~(2.8 M⊕, 0.80 M⊙) according to the other, indicating that the planet is a super Earth around a K-type star, regardless of the solution. The fact that 16 (including the one reported in this work) out of 19 microlensing planets with M ≲ 10 M⊕ were detected during the last 6 yr nicely demonstrates the importance of high-cadence global surveys in detecting very low-mass planets.
Floating Cage Stability With Vacuum Balance Unit
Authors: Irawan Henky
Published: November 2021

Floating cages are the technology used for aquaculture activities. The dynamic factors of the sea will affect the floating cage, one factor is the waves. The waves cause a change in the position of the floating cage that affects the stability of the floating cage. The floating cage needs should have a balancing unit for stability. The model of a floating cage with a vacuum balancing unit is for a function to perform a stable position when exposed to sea waves. This research was executed by comparing models of the floating cages without a vacuum balancing unit with the floating cages installed with a vacuum balancing unit. The stability in each model is tested by comparing the two models of floating cages, exposed to the naturally wavy sea, for the changing in position was measured with the accelerometer data logger installed on each floating cage model. The sorted data of each data logger of the two models with identical sequences on the X and Y axes for comparison purposes. The results show that the value of the change in position is smaller for the floating cage installed in the vacuum balancing unit to perform more stability.
Carapace length-frequency distribution and carapace length-weight correlation of ornate spiny lobster (Panulirus ornatus) in Sebatik Island Waters – Indonesia
Authors: Muzammil Wahyu , Kurniadi Bambang
Published: November 2021

Ornate spiny lobster (Panulirus ornatus) in Sebatik Island is a commercial fisheries commodity that has the highest price if we compare it with another lobster caught by the fisherman in Sebatik Island Waters. That causes the effort to catch this lobster to increase continuously. The availability of biological aspects data of ornate spiny lobster is needed as a basis for sustainable lobster resource management in Sebatik Island. This research aims to analyze the biological performance of ornate spiny lobster in Sebatik Waters, coverage from study carapace length-frequency distribution and carapace length-weight correlation of ornate spiny lobster. This research is expected to provide benefits as basic information in lobster management. Information related to the biological condition of lobsters can be used as a consideration in strategies for the utilization and management of lobster resources. Measurement of carapace length, weight, and sex of ornate spiny lobster was carried out from April to August 2016 at lobster landing base in Sebatik Island, North Borneo, Indonesia. The results showed that the sex ratio shows an unstable ratio. The distribution catch size of ornate spiny lobsters ranged from 64.5–114.5 mmCL. The growth pattern of female and male ornate spiny lobsters was negative allometric with r and R2values of both female and male >0.95. Carapace length at first ornate spiny lobster catch was 71.28 mmCL.
Natural Productivity, Morphometrics and Seasonal Distribution of Caulerva Racemosa
Authors: Raza’i Tengku Said , Amrifo Viktor , Putra Imam Pangestiansyah , Febrianto Try , Ilhamdy Aidil Fadhli
Published: November 2021

Caulerva racemosa seaweed is a superior commodity with both ecological and socio-economical benefits. It is technologically developed into different products which include antioxidants, antibiotics, medicinal ingredients, cosmetics as well as other organic products and also used conventionally as food ingredients for human’s consumption. Meanwhile, the presence of C. racemosa is observed to decrease as the exploitation rate is one of the factors affecting its stock in the nature. Changes in environmental conditions contribute majorly to its availability in aquatic ecosystems. Furthermore, natural factors in the form of seasonal changes that cause fluctuations in water dynamics are the main focus affecting its lifespan. The results showed that C. racemosa growth parameters, which include percentage cover, productivity, together with morphometrics, failed to be significantly affected by seasonal changes. Meanwhile, the highest percentage cover was found during the northern monsoon, which has an average value of 37.99 ± 7.67 (Average±STDEV), while the lowest was during the eastern monsoons with 28.03 ± 9.09 respectively. The best morphometric size was during the northern monsoon with a tallus dimension of 0.25 with an average of 0.201 ± 0.03 and length of 0.825 ± 0.16, a stolon length of 2.09 with an average of 1.95 ± 0.08, 9 stolon grains with an average of 8 ± 0.2. However, the grain diameter, as well as the biomass, was 0.85 gr and 0.054 gr with an average of 0.825 ± 0.22 gr and the grain biomass was with an average of 0.040 ± 0.01 and 0.041 gr with the best average stolon was 0.031 ± 0.01 g in the western season. The results showed that C. racemosa, which grows up in different seasons, having its highest productivity during the northern season and the lowest one was during the eastern season with an average value of 0.439 ± 0.36 kg/m2 as well as 0.326 ± 0.37 Kg/m2, respectively
The Quality of Grouper Cultivation Waters Around Bauxite Mining Site
Authors: Habibah Sayyidah Nur , Khodijah  , Purnamasari Endang
Published: November 2021

The purpose of this study was to determine the quality of the aquatic environment and the content of heavy metals, sediment, fish, and shellfish around the bauxite mining area. The main question is whether bauxite mining activities affect the quality of the surrounding waters. Further research needs to be carried out at the exact location during non-active mining activities as a comparison. Using the Atomic Absorption Spectroscopy (AAS) method, a field survey and heavy metal analysis are conducted. The results showed that the physicochemical properties of the water were categorized as polluted and unfit for fish farming. Five parameters, Cadmium (Cd), Timbal (Pb), Aluminum (Al), Nickel (Ni), and DO (dissolved oxygen), do not meet the quality standards of fish culture water and metal content in fish and shellfish bodies
Local defect-correction method based on multilevel discretization for Steklov eigenvalue problem
Authors: Xu Fei , Chen Liu , Huang Qiumei
Published: November 2021

In this paper, we propose a local defect-correction method for solving the Steklov eigenvalue problem arising from the scalar second order positive definite partial differential equations based on the multilevel discretization. The objective is to avoid solving large-scale equations especially the large-scale Steklov eigenvalue problem whose computational cost increases exponentially. The proposed algorithm transforms the Steklov eigenvalue problem into a series of linear boundary value problems, which are defined in a multigrid space sequence, and a series of small-scale Steklov eigenvalue problems in a coarse correction space. Furthermore, we use the local defect-correction technique to divide the large-scale boundary value problems into small-scale subproblems. Through our proposed algorithm, we avoid solving large-scale Steklov eigenvalue problems. As a result, our proposed algorithm demonstrates significantly improved the solving efficiency. Additionally, we conduct numerical experiments and a rigorous theoretical analysis to verify the effectiveness of our proposed approach.
Implementation Of Peer Review Assessment To Engineering Students
Authors: Idrus Hairuzila , Mulyono Herri , Ramli Raihan Mahirah , Bhattacharyya Ena , Zulaiha Siti
Published: November 2021

Online assessment has been increasingly popular in the tertiary education setting nowadays and has had significant changes to the process of assessment. Several studies have been conducted on online assessment, particularly on online peer assessment and found that it benefits students in teaching, learning and assessment. This paper will discuss the result of a study conducted in a Chemical Engineering class which uses online peer assessment as one of the tools to conduct assessment. The objective of this study was to investigate the effectiveness of online peer assessment to students’ learning from the students’ perspective. The perspective of the students was under study because they are the ones who are going through the process, thus, the effectiveness of the assessment to their learning can only be known if the information is obtained from them. The students were divided in small groups and asked to conduct online peer assessment using any free online survey tools. Each group had to conduct 2 or 3 cycles of peer assessment to ensure validity of the rating. The peer rating was used to produce individual marks for group work. At the end of the semester, the students were asked to write a reflection on the effectiveness of online peer assessment in their learning process of the course. The result of this study found that students have positive perspectives on the effectiveness of this assessment. This will be further discussed in the paper. In addition, pedagogical implications will also be discussed on the use of such online peer assessment in student’s learning task.
Smart linguistic-based cognitive acquisition model in language and communication skills development for ASD children: A framework analysis
Authors: Fitriana Mimi , Omar Nurul Nisa , Sok Choo Ng
Published: November 2021

Cognitive acquisition is the ability to improve cognition, brain health, and neural communication supporting the development of cognitive skills among children with Autism Spectrum Disorder (ASD). This concept paper is to establish the Framework to assist in the understanding of how the Model can be used to improve the cognitive development of ASD children. Such a Model will proliferate sustainable methods of learning and teaching to assist parents, guardians, and instructors of ASD children implementing the intervention activities. The Smart Linguistic-based Cognitive Acquisition Model, in this paper, is proposed to be developed in four phases. Phase 1 seeks to identify the components and features of cognitive skills acquisition, leading to a conceptual model supporting the language and communication development of ASD children. Phase 2 involves interviews with 20 professionals for verifying the selected components. Phase 3 involves incorporating components and features identified in phase 1 and verified in phase 2 into a Smart Linguistic-based Cognitive Acquisition Model. Phase 4, is to establish the conceptual model that incorporated Cognitive Acquisition in Language and Communication skills for ASD children within the Model framework. Thus, this concept paper would contribute to the implementation of sustainable learning and teaching for ASD children’s cognitive development.
Investors’ risk perception in the context of efficient market hypothesis: A conceptual framework for malaysian and indonesian stock exchange
Authors: Emad Azhar Ali Syed , Lai Fong-Woon , Kashif Shad Muhammad
Published: November 2021

The advocates of the Efficient Market Hypothesis (EMH) theory postulates that share prices depict all the available information concerning its intrinsic worth. EMH espouses the Random Walk Theory i.e. future stock returns cannot be predicted based on past movement patterns. Contrary to that, there are believers of the Adaptive Market Hypothesis (AMH) who have questioned the adaptability of EMH and argues that market efficiency and investor’s risk perception varies across time, thus, stock returns can be predicted through active portfolio management. Various Studies have argued on market efficiency debate for developed markets, however, limited studies have examined the same for emerging markets such as Malaysia and Indonesia, which are most volatile among ASEAN-5 indices. Therefore, the primary objective of this study is to conceptualize the manifestation of efficient market hypothesis and investors’ risk perception in volatile markets of Malaysia (Kuala Lumpur Composite Index) and Indonesia (Jakarta Composite Index) by testing the 10 years (2010-2019) of daily, weekly and monthly data for the return predictability. The findings of this study will provide insight into stock market behavior to help investors to better strategize their portfolio investment positioning to reap the most efficient risk-based return.
Assessing audit fees: Turnover, inflation & minimum stipend rate
Authors: Emad Azhar Ali Syed , Lai Fong-Woon , Sadriwala  , Fatima Kaneez , Arockiasamy S
Published: November 2021

Auditing firms rely on audit fees to generate revenue. The audit fee is generally agreed upon by auditee and auditor. For the calculation of audit fees, no standard formula exists. Pakistan's regulatory body for audit firms ‘ICAP' has imposed certain cost constraints on audit firms. As per the literature, stipend rates have been used rarely to determine audit fees. As a result, this paper examines audit fee determination using variables such as the company's assets, turnover, current ratio, inflation, and minimum stipend rate. These variables are especially influential in a developing country such as Pakistan. To determine audit fees, a panel regression model is being de-veloped. We used data from 40 publicly traded companies from 2014 to 2017 to regress on our model. After extensive testing with the Hausman and F-tests, the fixed effect model is finally applied. Empirically, it was discov-ered that the current ratio, the entity's turnover, and the stipend amount all have a significant positive effect on the calculation of audit fees. T The study's findings have significant implications not only for audit firms, but also for auditees in determining audit fees.
Enhancing Direct Democracy: Case Studies in Vietnam
Authors: Ha Thi Hai Yen , Nguyen Thi My Linh
Published: November 2021

Direct democracy is the original and true way to ensure the power and position of the people as the owners of the state and society. Along with representative democracy, the implementation of direct democracy is important and indispensable in modern states in the world. In Vietnam, direct democracy has been recognized in many important legal documents and has been concerned by the Vietnamese Government, especially in recent times. Promoting and expanding direct democracy in Vietnam is evaluated as very correct and consistent actions of the Communist Party and the Government of Vietnam. The implementation of democracy is an important driving force to promote socio-economic development as well as people's sovereignty. It also stimulates the material and spiritual resources among the people to serve socio-economic development and fulfill social tasks. In the recent context of Vietnam, there are a lot of difficulties and challenges in implementing direct democracy, which requires significant solutions to strengthen in the future. In this paper, besides providing general research and opinions on direct democracy, the author focuses on analyzing issues of direct democracy implementation as well as proposing some solutions to improve direct democracy in Vietnam.
Social media connectivity and its effect on job stress among office employees in oil and gas sector Malaysia
Authors: Kanwal Noreen , Shahrul Nizam Isha Ahmad , Salleh Rohani bt
Published: November 2021

The modern era with technological advancement removed physical activities. Most of the people seem busy in their androids. Especially, office workers perform duties online throughout the working hours, along with online work activities employees have developed their interest in leisure activities on social media websites. Statistically, 81% of the Malaysian population are social media users in 2020, whereas 17% spend more than 9 hours on social media websites (Statista, 2020; Yougov, 2019). The purpose of the study is to identify the effect of social media addictiveness and social media activities related to the job on job stress among office employees. A simple random sampling technique is used to collect data. Data is collected through a questionnaire survey from 253 office employees working in the oil and gas industry, Malaysia. The reliability of the questionnaire was found through Cronbach alpha. Pearson Bivariate Correlation analysis is used to identify associations among social media addictiveness and social media activities related to job and job stress among office employees. The results indicated that social media addictiveness enhances job stress by 52% at 1% level of significance, whereas social media activities reduce job stress by 12% at 5% level of significance and social media addictiveness. It is concluded that job stress among office employees can be reduced by discouraging social media addictiveness. Although social media activities related to jobs decrease job stress, it can be harmful to the reputation of the employer and can create problems for the employee in the long term. Alternative methods should be used to release job stress, such as social support within the workplace and physical interaction among employees. This study is useful for the organizations related to office employees to identify the employees with social addiction, provide them training about safety in surfing online websites, enhance physical interaction and create social support for the employees within the organization. Employees may adopt the right channel to release their stress despite social media that is actually enhancing stress. Further, this study is valuable for the forthcoming researchers to enhance research in this area.
Challenges in the Implementation of Peer-to-peer Recognition
Authors: Ho Ngoc Son , Nguyen Lan Thi Mai
Published: November 2021

This paper aims to explore potential issues in implementing peer-to-peer recognition to motivate employees. A qualitative inquiry is applied to enhance our understanding of peer-to-peer recognition schemes in practical situations. Sixteen participants, including HR researchers and managers from different organizations where this program has been implemented, attended semi-structured interviews. From which twelve cases are chosen for this study. Using thematic analysis on the collected responses, the researcher finds that challenges to peer-to-peer recognition are to be found in four categories: the impact of personal relationship, the unsuitability of working climate, the confusing nomination criteria, and the lack of an appropriate rewarding policy. Practical solutions to deal with those challenges are also proposed, which include building the culture and assigning monitor, to assist employers to effectively make use of a peer-to-peer program in motivating employees. This study therefore raises the awareness of optimizing motivation program for HR practitioners, as well as contributes a qualitative approach toward the non-cash recognition evaluation.
Customer’s repurchase intensions following service recovery: A conceptual model
Authors: Mazhar Muhammad , Hooi Ting Ding
Published: November 2021

An effective strategy of service recovery that prevents customer defection after service failure is a powerful managerial instrument. The values that a customer associates and considers with repurchasing after service recovery has changed due to globalization. Although service recovery has been identified as a key driver to retain the customers, yet the effectiveness of service recovery is unclear. The literature did not offer a comprehensive service recovery strategy that can be implemented universally. Owing to varying comments on the effectiveness of service recovery, its generalizability is questionable. Grudge produced in the response of service failure that cannot be compensated with financial transactions. This study will check whether service recovery has any impact on customer’s repurchase intentions when customer has grudges and available substitutes. The findings of this research will help the managers and practitioners to allocate their resources in a proper way. Furthermore, this study will help to understand money or extrinsic compensation is not everything. Therefore, there will be some consideration beyond the materialist compensation. It will open up new avenues for researchers to view service recovery strategies with a different angle.
SFlex-WMS: a novel multi-expert system for flexible logistics and warehouse operation in the context of Industry 4.0
Authors: Ng Sokchoo , Tai Vin Cent , Tan Yong Chai , Abd Rahman Nor Faiza
Published: November 2021

Production lines form the backbone of a manufacturing plant while the warehouse is the heart that pumps the supplies through logistics veins. However, logistics issues among manufacturing industries are well known for causing downstream production problems. Non-transparent warehouse operation and inevitable human error in logistics activities seriously jeopardise the entire downstream manufacturing processes. Existing warehouse management solutions require many sensors spanning the warehouse for tracking logistics activities which are cost-ineffective and inflexible. One aspect of intelligent WMS that has not been explored is the integration of computer vision modeling with Artificial Intelligence (AI) to create a more flexible, transparent, and autonomous warehouse management system (WMS). This study aims to devise a Smart and Flexible WMS (SFlex-WMS) to improve logistics operations in terms of operation costs, process time, and space utilisation. The highlight of the proposed framework is the two major work packages (WP) which focus on flexible, autonomous sensing mechanisms for inventory, logistics tracking, and space mapping, as well as reconstructing the warehouse environment model that reflects all physical changes in the warehouse. SFlex-WMS intends to realize real-time transparent monitoring of warehouse operations. By exploiting the outputs from both WPs, SFlex-WMS is expected to achieve more effective and flexible warehouse operations.
Green Human Resource Management, Perceived Organizational Support and Organizational Citizenship Behavior towards Environment in Malaysian Petroleum Refineries
Authors: Khalid Hafizatul Alina Mohd , Harun Haryanni , Noor Azelin Mohamed , Hashim Hezlina Mohd
Published: November 2021

Organizational Citizenship Behavior towards Environment (OCBE) is a construct that is increasingly being studied to explain voluntary green behaviors by employees. Performance of OCBEs by employees has been associated with positive outcomes such as improved environmental sustainability of organizations. Hence, promoting more of these behaviors is important for organizations both from an environmental and corporate sustainability perspective. Several studies have examined the influence of Green Human Resource Management (Green HRM) and Perceived Organizational Support (POS) on Organizational Citizenship Behavior (OCB) however, there are still calls for more research into the influence of all these three variables; POS and Green HRM on OCB towards environment. The target respondents are executives in middle level management from the petroleum refineries operating in Peninsular Malaysia. Fixed-alternatives questionnaires are used as the research instrument in this study. The data from pilot study were tested and analyzed by using SPSS to compute results namely. The expected result is that there is a positive significant relationship between the independent variables; Green Human Resource Management (Green HRM), Perceived Organizational Support (POS) and dependent variable Organizational Citizenship Behavior towards environment (OCBE). This study provides insights for regulators and policymakers on the extent to which practices and interventions affect Organization Citizenship Behavior on Environment in petroleum refineries operating in Malaysia.
Comparison of the Functional and Radiological Outcomes of Single- and Two-Stage Bilateral Open Wedge High Tibial Osteotomy
Authors: Uçan Vahdet , Aliyev Orkhan , Demirkiran Cemil Burak , Yildiz Fatih , Elmali Nurzat , Uzer Gökçer
Published: November 2021

Purpose This study compared the functional and radiological outcomes and complications of single- (SS) and two-stage (TS) bilateral high tibial osteotomy (HTO).

Methods From 2014 to 2018, 48 patients underwent bilateral HTO surgery for osteoarthritis. The outcomes of SS in 28 knees and TS in 32 knees were compared using the Knee Injury and
Osteoarthritis Outcome Score (KOOS) and Oxford Knee Score (OKS) as functional outcomes, and the medial proximal tibial (MPTA), hip-knee-ankle (HKA), tibial slope (TSA) angles, and mechanical
axis deviation (MAD) as radiological outcomes. We also evaluated the estimated blood loss (EBL).

Results No significant differences in the pre- and postoperative mean OKS and KOOS were found between the groups. There was a significant difference between the groups in the last
postoperative HKA angle (− 0.9 ± 3.9 and 1.8 ± 4.3°, respectively). In SS and TS, the respective total mean surgical time was 108 ± 28 and 143 ± 36 min (p < 0.001). The mean calculated
EBL was 612 ± 267 and 544 ± 357 mL, respectively, (p = 0.5), and the mean length of stay (LOS) was 2.2 ± 0.83 and 3.5 ± 1.0 days, respectively, (p = 0.01).

Conclusion SS bilateral HTO is a safe reasonable option for certain patients with bilateral knee osteoarthritis because it involves a single hospitalization, one-time exposure to
anesthesia risks, accelerated rehabilitation, earlier return to expected life status, reduced total hospital stay, and a likely decrease in total cost.
Die erste niedergelassene Praxis für nierenkranke Kinder und Jugendliche in Deutschland
Authors: Kolzem Tanja
Published: November 2021

In Deutschland sind rund 1000 Kinder und Jugendliche von einer chronischen Nierenerkrankung betroffen. Nierenkranke Kinder benötigen eine besondere Versorgung. Neben der Behandlung durch Kindernephrologen ist eine multiprofessionelle Mitbetreuung durch weitere Fachabteilungen erforderlich. Während erwachsene nierenkranke Patienten überwiegend durch niedergelassene Nephrologen behandelt werden, war dieses für Kinder bislang nur in Universitätskinderkliniken oder größeren Kinderkrankenhäusern möglich. Im Frühjahr 2020 wurde die erste niedergelassene Praxis für nierenkranke Kinder und Jugendliche in Bonn eröffnet.
Kommunikationswege und -hürden mit Pflegeheimen und digitale
Lösungsperspektiven: eine Fragebogenumfrage unter
Hausärzten
Authors: Kroeber Eric Sven , Denny Kathleen , Frese Thomas , Unverzagt Susanne , Bauer Alexander
Published: November 2021

Ziel der Studie Darstellung der Kommunikationswege und -hürden
zwischen Hausärzten (HÄ) und Pflegeheimen 2019 aus Sicht von
HÄ und deren Perspektiven auf digitale Lösungen.

Methodik Eine fragebogenbasierte Querschnittstudie unter 600
zufällig ausgewählten HÄ in Sachsen-Anhalt.

Ergebnisse Die Antwortquote war 20% (n=114). Das mittlere
Alter der teilnehmenden HÄ lag bei 53 Jahren, zwei Drittel waren Frauen
(65%). HÄ nutzen hauptsächlich Fax (92%) oder
Telefon (87%) zur Kommunikation mit Pflegeheimen. Digitale
Kommunikationswege wie E-Mail (7%), Praxis-EDV (6%) und
Chat-Dienste (1%) werden seltener genutzt. Etwa die Hälfte der
HÄ beschreiben nicht notwendige (52%) oder unklare (51%)
Heimbesuchsanforderungen, sowie fehlende Informationen über
Medikationsplanänderungen durch andere Ärzte (51%) als
häufiges, vermeidbares Problem. Ärzte möchten
zukünftig mit E-Medikationsplänen (85%),
E-Folgeverordnungen (79%) und E-Überweisungen (69%)
arbeiten. 33% der HÄ haben vollständig digitale
Patientenakten. Nur 9% arbeiten ausschließlich auf
Papierbasis.

Schlussfolgerung Obwohl HÄ eine Offenheit für
digitalisierte Kommunikation mit Pflegeheimen zeigen, werden fast
ausschließlich Fax und Telefon genutzt. HÄ bevorzugen es,
weniger komplexe Aufgaben, wie Medikationsplanänderung und
Überweisungen, digital zu bearbeiten. Wenige HÄ können
es sich vorstellen, komplexere Prozeduren wie die Versorgung akuter
Gesundheitsprobleme und Kurvenvisiten digital abzuwickeln. Nur 8%
möchten nicht digital arbeiten.
Improving Implantation Rate in 2nd ICSI Cycle through Ovarian Stimulation with FSH and LH in GNRH Antagonist Regimen
Authors: Setti Amanda Souza , Braga Daniela Paes de Almeida Ferreira , Iaconelli Assumpto , Borges Edson
Published: November 2021

Objective To investigate whether patients with a previous recombinant follicle stimulating hormone (rFSH)-stimulated cycle would have improved outcomes with rFSH + recombinant luteinizing hormone (rLH) stimulation in the following cycle.

Methods For the present retrospective case-control study, 228 cycles performed in 114 patients undergoing intracytoplasmic sperm injection (ICSI) between 2015 and 2018 in an in vitro fertilization (IVF) center were evaluated. Controlled ovarian stimulation (COS) was achieved with rFSH (Gonal-f, Serono, Geneva, Switzerland) in the first ICSI cycle (rFSH group), and with rFSH and rLH (Pergoveris, Merck Serono S.p.A, Bari, Italy) in the second cycle (rFSH + rLH group). The ICSI outcomes were compared among the groups.

Results Higher estradiol levels, oocyte yield, day-3 high-quality embryos rate and implantation rate, and a lower miscarriage rate were observed in the rFSH + rLH group compared with the rFSH group. In patients < 35 years old, the implantation rate was higher in the rFSH + rLH group compared with the rFSH group. In patients ≥ 35 years old, higher estradiol levels, oocyte yield, day-3 high-quality embryos rate, and implantation rate were observed in the rFSH + rLH group. In patients with ≤ 4 retrieved oocytes, oocyte yield, mature oocytes rate, normal cleavage speed, implantation rate, and miscarriage rate were improved in the rFSH + rLH group. In patients with ≥ 5 retrieved oocytes, higher estradiol levels, oocyte yield, and implantation rate were observed in the rFSH + rLH group.

Conclusion Ovarian stimulation with luteinizing hormone (LH) supplementation results in higher implantation rates, independent of maternal age and response to COS when compared with previous cycles stimulated with rFSH only. Improvements were also observed for ICSI outcomes and miscarriage after stratification by age and retrieved oocytes.
Effect of Tibial Slope on Coronal Alignment in Total Knee Arthroplasty
Authors: Betzle Christopher J. , Bringe Kariline E. , Horberg John V. , Moskal Joseph T. , Mann John W.
Published: November 2021

Malalignment of total knee arthroplasty (TKA) components affects function and survivorship. Common practice is to set coronal alignment prior to adjusting slope. With improper jig placement, adjustment of the slope may alter coronal alignment. The purpose of this study was to quantify the change in coronal alignment with increasing posterior tibial slope while comparing two methods of jig fixation. A prospective consecutive series of 100 patients underwent TKA using computer navigation. Fifty patients had the extramedullary cutting jig secured proximally with one pin and 50 patients had the jig secured proximally with two pins. Coronal alignment (CA) was recorded with each increasing degree of posterior slope (PS) from 0 to 7 degrees. Mean CA and change in CA were compared between cohorts. Utilizing one pin, osteotomies drifted into varus with an average change in CA of 0.34 degrees per degree PS. At 4 degrees PS, patients started to have >3 degrees of varus with 12.0% having >3 degrees of varus at 7 degrees PS. Utilizing two pins, osteotomies drifted into valgus with an average change of 0.04 degrees in CA per degree PS. No patients in the two-pin cohort fell outside 3 degrees varus/valgus CA. CA was significantly different at all degrees of PS between the cohorts. Changes in PS influenced CA making verification of tibial cut intraoperative critical. Use of >1 pin and computer navigation were beneficial to prevent coronal plane malalignment. This relationship may explain why computer navigation has been shown to improve alignment as well as survivorship and outcomes in some patients, especially those <65 years.