bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fire performance of earthquake-damaged reinforced concrete columns: an experimental study
Authors: Chinthapalli Hemanth Kumar , Agarwal Anil 
Published: September 2021

PurposeEarthquake tremors not only increase the chances of fire ignition but also hinder the fire-fighting efforts due to the damage to the lifelines of a city. Most of the international codes have independent recommendations for structural safety against earthquake and fire. However, the possibility of a multi-hazard event, such as fire following an earthquake is seldom addressed.Design/methodology/approachThis paper presents an experimental study of Reinforced Concrete (RC) columns in post-earthquake fire (PEF) conditions. An experimental approach is proposed that allows the testing of a column instead of a full structural frame. This approach allows us to control the loading and boundary conditions individually and facilitates the testing under a variety of these conditions. Also, it allows the structure to be tested until failure. The role of parameters, such as earthquake intensity, axial load ratio and the ductile detailing of the column on the earthquake damage and subsequently the fire performance of the structure, is studied in this research. Six RC column specimens are tested under a sequence of quasi-static earthquake loading, followed by combined fire and axial compression loading conditions.FindingsThe experiment results indicate that ductile detailed columns subjected to 4% or less lateral drift did not lose significant load-carrying capacity in fire conditions. A lateral drift of 6% caused significant damage to the columns and reduced the load-carrying capacity in fire conditions. The level of the axial load acting on the column at the time of earthquake loading was found to have a very significant effect on the extent of damage and reduction in column load capacity in fire conditions. The columns that were not detailed for a ductile behavior observed a more significant reduction in axial load carrying capacity in fire conditions.Research limitations/implicationsThis study is limited to columns of 230 mm size due to the limitations of the test setup. The applicability of these findings to larger column sections needs to be verified by developing a numerical analysis methodology and simulating other post-earthquake-fire tests available in the literature.Originality/valueThe experimental procedure proposed in this paper offers an alternative to the testing of a complete structural frame system for PEF behavior. In addition to the ease of conducting the tests, the procedure also allows much better control over the heating, structural loading and boundary conditions.
Impact of a country’s logistical capabilities on supply chain risk
Authors: Sreedevi R. , Saranga Haritha , Gouda Sirish Kumar 
Published: September 2021

PurposeThis paper aims to examine the relationship between environmental factors, risk perception and decision-making in risk management. Specifically, using attribution theory, the authors study the influence of macro-level logistical capabilities of a host country on a firm’s actual and perceived supply chain risk, and examine if this country-level factor and the firm level perception of risk affect a firm’s decision-making in risk management.Design/methodology/approachThis study uses a combination of primary data from 932 manufacturing firms from 22 countries and secondary data from the logistics performance index (LPI), and empirically tests the conceptual framework using partial least squares structural equation modeling.FindingsKey results reveal that a country’s logistical capabilities, measured using LPI, have a significant impact on managers’ risk perception. Firms located in countries with high LPI perceive lower risk in their supply chain both in the upstream and downstream, and therefore do not invest much in external integration, compared to firms in low LPI countries, and hence are exposed to high risk.Originality/valueThis is one of the first empirical studies linking a country’s logistical capabilities with supply chain risk perceptions, objective supply chain risk and supply chain risk management efforts of a firm using the International Manufacturing Strategy Survey database.
Analysis of diversification benefits for cryptocurrency portfolios before and during the COVID-19 pandemic
Authors: Aliu Florin , Bajra Ujkan , Preniqi Naim 
Published: September 2021

Purpose
This study aims to investigate the diversification benefits attached to the crypto portfolios when combined with stocks, Forex instruments and commodity assets.

Design/methodology/approach
Markowitz diversification techniques have been used to analyze the risk-return tradeoffs of the individual portfolios. Daily prices on cryptocurrencies and the selected asset classes, cover the period before and during the pandemic COVID-19. The portfolio risk of the portfolios was calculated by identical techniques and analyzed with equal criteria.

Findings
The results with 270 trails indicate that stocks on average reduce the portfolio risk of crypto portfolios by 36% followed by fiat currency with 30.9% and commodities by 20.8%. Average daily returns stand in line with the standard portfolio theories where riskier portfolios offer higher returns and the other way around.

Originality/value
The authors contribute to the current literature by investigating the portfolio risk attached to the crypto portfolios when stocks, commodities and Forex instruments were added separately. To this end, results inform not only retail investors but also portfolio managers on the asset classes that generate better optimization for crypto portfolios.
The framework of talent analytics using big data
Authors: Saputra Arnold , Wang Gunawan , Zhang Justin Zuopeng , Behl Abhishek 
Published: September 2021

PurposeThe era of work 4.0 demands organizations to expedite their digital transformation to sustain their competitive advantage in the market. This paper aims to help the human resource (HR) department digitize and automate their analytical processes based on a big-data-analytics framework.Design/methodology/approachThe methodology applied in this paper is based on a case study and experimental analysis. The research was conducted in a specific industry and focused on solving talent analysis problems.FindingsThis research conducts digital talent analysis using data mining tools with big data. The talent analysis based on the proposed framework for developing and transforming the HR department is readily implementable. The results obtained from this talent analysis using the big-data-analytics framework offer many opportunities in growing and advancing a company's talents that are not yet realized.Practical implicationsBig data allows HR to perform analysis and predictions, making more intelligent and accurate decisions. The application of big data analytics in an HR department has a significant impact on talent management.Originality/valueThis research contributes to the literature by proposing a formal big-data-analytics framework for HR and demonstrating its applicability with real-world case analysis. The findings help organizations develop a talent analytics function to solve future leaders' business challenges.
Long‐term changes in food habits of deer and habitat vegetation: 25‐year monitoring on a small island
Authors: Takatsuki Seiki 
Published: September 2021

AbstractHow vegetation change caused by ungulates affects other ungulate species has been well studied, yet how grazing the vegetation of the habitat affects a species own food habits is not known. Long‐term studies on the effects of sika deer (Cervus nippon) on vegetation have been performed, but not in the context of the species own food habits. I monitored grassland vegetation and deer food habits on an island in northern Japan for 25 years from 1975 to 2000. During the first decade, deer grazing caused the replacement ofMiscanthus sinensistussocks by aZoysia japonicasward. Deer diets in 1976 were composed of equal proportions ofM. sinensis,Pleioblastus chino, andZ. japonica, but after the 1980s,Z. japonicabecame their major food source. This is because of the high productivity ofZ. japonicaafforded by its morphology and physiology, as well as by the warm and humid summer climate of the Japanese archipelago. Although the vegetational changes were gradual, changes in the deer food habits were abrupt and the compositions were predominated byZ. japonicaafter the first decade. This study showed that an ungulate changed its own diet because of its effect on the vegetation by grazing, and that the changes in vegetation and deer diet were not synchronized over a 25‐year monitoring period.
Price inflation and exchange rate pass‐through in Tunisia
Authors: Gritli Mohamed Ilyes 
Published: September 2021

AbstractThis paper employs a structural vector autoregression model with non‐recursive contemporaneous restrictions to study the exchange rate pass‐through (ERPT) effects on domestic prices in Tunisia for the period January 2000 to February 2019. Thus, we have introduced four blocks that represent the foreign market, domestic goods market, money market and foreign exchange market. The results suggest that the ERPT to import price index (MPI) is large and rapid: 42% in the short run and 60% in the medium run. ERPT to producer price index (PPI) is relatively long and modest: 1% in the short run and 6% in the medium run. ERPT to consumer price index (CPI) is relatively rapid and modest: 3% in the short run and 7% in the medium run. The findings also show that PPI contributes the most to CPI fluctuations, while money supply and the world oil price contribute the most to interest rate variations. This suggests that the Central Bank of Tunisia is trying to indirectly control inflation. Therefore, the phasing out of administered prices should improve the effectiveness of monetary policy.
Resource implications following expansion of computed tomography coronary angiography: An Australian experience
Authors: Leong Chui Lyn , Teoh Tiong Wee , Bentley Louise , O’Rourke Edward , Allright Annalise , Werkmeister Melanie , Bickell Andrew , Htun Nay Min , Premaratne Manuja 
Published: September 2021

AbstractIntroductionTo determine the downstream utilisation of Computed Tomography Coronary Angiography (CTCA) in a single Australian tertiary centre.MethodsA single‐centre retrospective study analysed 1460 patients undergoing CTCA between 1st January 2015 to 31st December 2018 at a tertiary hospital in Victoria, Australia, with a catchment area of 500,000 people. The coronary stenosis grading, plaque characteristics and coronary calcium score were identified. The downstream impact was assessed by measuring the number of stress echocardiograms, myocardial perfusion scans (MPS), invasive coronary angiograms and subsequent revascularisations.ResultsThe number of CTCA’s performed steadily increased from 59 in 2015 to 395, 461 and 545 in 2016, 2017 and 2018 respectively. Seven hundred and fifty‐seven (52%) were females, and 703 (48%) males with 724 (50%) normal CTCA studies. The number of downstream stress echocardiogram performed each year was 2, 60, 46 and 16, respectively, accompanied by MPS numbers of 0, 21, 29, and 18. There were 9, 37, 57 and 64 invasive coronary angiograms with 1, 13, 19 and 22 corresponding revascularisations. Despite small increases in absolute numbers of patients presenting with chest pain (from 2678 in 2015 to 3660 in 2018), there was a significant increase in downstream further testing from 11 in 2015 to 98 in 2018.ConclusionThe use of CTCA expansion has resulted in an increase in downstream testing. Therefore, resource planning with regards to CTCA expansion will have to account for increased rates of functional testing, invasive angiography and revascularisation.
Geochronology and Geochemistry of the Mamupu Cu‐Au Polymetallic Deposit, Eastern Tibet: Implications for Eocene Cu Metallogenesis in the Yulong Porphyry Copper Belt
Authors: ZHANG Xiaoxu , LIN Bin , TANG Juxing , HE Liang , LIU Zhibo , WANG Qin , SHAO Rui , DU Qiu , SILANG Wangdui , CIREN Ouzhu , GUSANG Quzhen , CIDAN Zhongga 
Published: September 2021

AbstractThe Mamupu skarn‐type Cu‐Au polymetallic deposit represents the first discovery of a medium deposit in the southern Yulong porphyry copper belt (YPCB), eastern Tibet. The Cu‐Au mineralization mainly occurs as chalcopyrite in breccia, within the plate‐like carbonate interlayer, being closely related to chloritization (e.g., chlorite, magnetite and epidote) and skarnization (e.g., diopside, tremolite and garnet). The ore‐related quartz syenite porphyry (QSP) and granodiorite porphyry (GP) were emplaced at 40.1 ± 0.2 Ma and 39.9 ± 0.3 Ma, respectively. The QSP of Mamupu is an alkaline‐rich intrusion, relatively enriched in LREE, LILE, depleted in HFSE, with no significant negative Eu and Ce anomalies, slightly high (87Sr/86Sr)i, low ∊Nd(t), uniform (206Pb/204Pb)i and ∊Hf(t) values, which indicates that the porphyry magma may be caused by both the mixing of metasomatized EM II enriched mantle and thickened juvenile lower crust. The QSP in the Mamupu deposit shares a similar genesis of petrology to other ore‐related porphyries within the YPCB. High oxygen fugacity and water content of the magmas are essential for the formation of porphyry and skarn Cu deposits. The QSP has similar high magmatic oxidation states and water content to the Yulong deposit, which indicates that the Mamupu has a high prospecting potential. Differences in the geological characteristics and scale of mineralization between the Mamupu and other YPCB deposits may be due to the different emplacement depths of ore‐related intrusions, as well as differences in the surrounding rocks.
A Chinese Perspective: Will China‐India Friction Paralyze the BRICS?
Authors: Niu Haibin , Hong Sheng 
Published: September 2021

AbstractA puzzle of BRICS is why countries such as India and China work together within the group despite facing consistently difficult bilateral border tensions. This contribution argues that the multilateral logic of BRICS gives its members a chance to cooperate. As emerging powers, BRICS members need to adopt a collective approach to enhance their voices in the global governance system. Existing evidence shows that China and India have managed to separate their bilateral frictions from their collective actions within BRICS. This contribution examines the stakes of China and India’s BRICS engagement. Since China and India are the most promising emerging powers in global governance, their partnership will determine the BRICS’ depth and the length. Since China has dealt with the pandemic better than other BRICS members, it has become stronger which might increase the disparity of power within BRICS. Following the multilateral logic it may help India to cooperate with a stronger China in the post‐COVID‐19 era.
BRICS amidst India‐China Rivalry
Authors: Verma Raj , Papa Mihaela 
Published: September 2021

AbstractIn only a decade, the BRICS group has achieved policy coordination among five very disparate countries and has started presenting a serious challenge to the status quo in global governance. It is now collaborating on many policy issues and delegating authority to a range of BRICS organizations. Since the inception of BRICS, the protracted India–China rivalry has cast a dark shadow over the group. In the aftermath of the India–China standoff in Ladakh, especially the Galwan Valley clash evoking memories of more serious clashes such as those at Nathu La in 1967 and even the 1962 border war, a crucial axis of BRICS cooperation – the India–China relationship – has deteriorated. This Special Section examines whether the India–China rivalry will render BRICS dysfunctional. Will the BRICS group be broken? The contributors will analyse whether BRICS can be a pacifying force and outline the prospects for the development of BRICS in light of the India–China crisis.
Age of Multilateralism: Why is BRICS Important despite Possible Weaknesses? A Perspective from Russia
Authors: Panova Victoria V. 
Published: September 2021

AbstractThis article discusses whether BRICS, a leading global governance mechanism, can revive multilateralism, international law and interstate cooperation while providing stability at the global, regional and bilateral level. BRICS has created opportunities for addressing three core themes: politics and security; economics and finance; and humanitarian cooperation. It has evolved into an entity of like‐mined countries, which connects people through vertical and horizontal ties, delivers impactful projects and builds friendships. BRICS interconnectedness keeps the group intact from issues such as China‐India border conflict that could potentially disrupt BRICS unity. Moreover, the group was not designed to serve as a mediating body and clearly avoids being drawn into internal BRICS conflicts. To reach its full potential, BRICS must continue to expand the scale of cooperation in mutually beneficial issue areas and serve as a platform for cooperative projects for its citizens.
Redundancy analysis: A Swiss Army Knife for landscape genomics
Authors: Capblancq Thibaut , Forester Brenna R. 
Published: September 2021

Abstract

Landscape genomics identifies how spatial and environmental factors structure the amount and distribution of genetic variation among populations. Landscape genomic analyses have been applied across diverse taxonomic groups and ecological settings, and are increasingly used to analyse datasets composed of large numbers of genomic markers and multiple environmental predictors.

It is in this context that multivariate methods show their strengths. Redundancy analysis (RDA) is a constrained ordination that, in a landscape genomics framework, models linear relationships among environment predictors and genomic variation, effectively identifying covarying allele frequencies associated with the multivariate environment. RDA can be used at both individual and population levels, can include covariates to account for confounding factors and can be used to directly infer genotype–environment associations on the landscape. The modelling of both multivariate response and explanatory variables allows RDA to accommodate the genomic and environmental complexity found in nature, producing a powerful and efficient tool for landscape genomics.

In this review, we outline the diverse uses of RDA in landscape genomics, including variable selection, variance partitioning, genotype–environment associations, and the calculation of adaptive indices and genomic offset. To illustrate these applications, we use a published dataset for lodgepole pine that includes genomic, phenotypic and environmental data. We provide an introduction to the statistical basis of RDA, a tutorial on its use and interpretation in landscape genomics applications, discuss limitations and provide guidelines to avoid misuse.

This review and associated tutorial provide a comprehensive resource to the landscape genomics community to improve understanding of RDA as a modelling framework, and encourage the appropriate use of RDA across diverse landscape genomics applications. RDA is truly a Swiss Army Knife for landscape genomics: a multipurpose, adaptable and versatile approach to identifying, evaluating and forecasting relationships between genetic and environmental variation.
Ultrasound energy consumption and macular changes with manual and femtolaser‐assisted high‐fluidics cataract surgery: a prospective randomized comparison
Authors: Menapace Rupert , Schartmüller Daniel , Röggla Veronika , Reiter Gregor S. , Leydolt Christina , Schwarzenbacher Luca 
Published: September 2021

AbstractPurposeThe purpose of the study was to compare ultrasound (US) consumption and central macular thickness (CMT) and volume changes with manual and femtosecond laser (FSL)‐assisted cataract nucleus workup.MethodsSixty patients scheduled for immediate sequential bilateral surgery underwent a prospective randomized intraindividual comparison of nucleus sector fragmentation performed manually in one eye and with low‐energy FSL assistance in the partner eye, followed by high‐fluidics phacoaspiration with a maximum US power of 30%. Ultrasound (US) energy consumption and macular thickness and volume were compared as measured by intraoperative effective phacoemulsification time (EPT) and high‐resolution spectral domain optical coherence tomography pre‐ and 1 week, 3 weeks and 6 weeks postoperatively. Results are presented as means ± SD or medians [min; max].ResultsFifty‐two patients completed the full follow‐up. For the manual and FSL‐assisted groups, nuclear hardness was almost identical with a mean LOCS III grade of 2.44 ± 1.08 and 2.50 ± 1.00 (p = 0.371). Median EPT was 1.40 [0.2; 8.3] and 1.25 [0.2; 9.4] seconds. Median preoperative CMT was 276.50 [263.25; 289.75] µm and 276.00 [262.00; 290.00] µm. Median postoperative CMT was 278.00 [260.50; 288.00] versus 275.50 [264.00; 290.50] µm at 1 week, 279.50 [266.75; 292.25] versus 280.00 [266.50; 294.50] µm at 3 weeks and 280.50 [268.00, 293.75] versus 279.50 [264.75; 295.25] µm at 6 weeks. Differences in CMT and total macular volume between the groups were not statistically significant at any point in time.ConclusionFemtosecond laser (FSL) prefragmentation of the nucleus into six sectors did not reduce US energy consumption compared with manual splitting of the nucleus into four quadrants in this particular surgical setting. Sectorial FSL‐prechopping with the low‐energy FSL used had no additional impact on postoperative macular thickness and volume.
The clinical course of Crohn’s disease in a Danish population‐based inception cohort with more than 50 years of follow‐up, 1962‐2017
Authors: Burisch Johan , Lophaven Søren , Langholz Ebbe , Munkholm Pia 
Published: September 2021

SummaryBackgroundFew population‐based studies have investigated the long‐term prognosis of Crohn's disease (CD).AimTo determine the long‐term natural disease course of CD with regard to surgery, cancer and mortality in a population‐based cohort followed for more than 50 years.MethodsAll patients diagnosed with CD from 1962 to 1987 in Copenhagen County, Denmark were included in a population‐based cohort. Information about surgeries, cancers and mortality was collected from patient files from 1962 to 1987 and from the Danish National Patient Registry, Cancer Registry, and from the Register of Causes of Death, 1987‐2017. Patients were matched with individuals from the general population.ResultsA total of 373 patients were followed for a median of 33 years (range: 0‐56 years). The cumulative probability of surgery 10, 20, 30, 40 and 50 years after diagnosis was 62% (CI 95%: 57%‐67%), 71% (CI 95%: 66%‐75%), 72% (CI 95%: 67%‐76%), 74% (CI 95%: 69%‐79%) and 74% (CI 95%: 69%‐79%), respectively. A total of 142 patients (54%) were operated upon at least twice: 69 (26%) needing two surgeries and 73 (28%) needing three or more. Patients with CD were found to be at increased risk of intestinal (small bowel, rectum and anus) and extra‐intestinal (respiratory organs and skin) cancer. All‐cause mortality among CD patients was higher than among controls (RR: 1.22, CI 95%: 1.04‐1.43), whereas mortality due to gastrointestinal cancer was not.ConclusionAfter 50 years of follow‐up, 75% CD patients had undergone surgery, with most needing repeat surgery. The risk of intestinal and extra‐intestinal cancers, as well as mortality, was higher among CD patients than the background population.