bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sequential calibration of transmission ratios for joints of 6-DOF serial industrial robots based on laser tracker
Authors: Wang Ling , Wu Xiaoliang , Kang Zeng , Gao Yanfeng , Chen Xiai , Wang Binrui 
Published: September 2023

Purpose
In traditional calibration methods of kinematics parameters of industrial robots, dozens of model parameters are identified together based on an optimization procedure. Due to different contributions of model parameter errors to the tool center point positioning error of industrial robots, obtaining good results for all model parameters is very difficult. Therefore, the purpose of this paper is to propose a sequential calibration method specifically for transmission ratio parameters, which includes reduction ratios and coupling ratios of industrial robot joints.

Design/methodology/approach
The ABB IRB 1410 industrial robot is considered as an example in this study. The transmission ratios for each joint of the robot are identified using the spatial circle fitting method based on spatial vectors, which fit the center and radius of joint rotation with the least squares optimization algorithm. In addition, a method based on the Rodrigues’ formula is designed and presented for identifying the actual coupling ratio of the robot. Subsequently, an experiment is carried out to verify the proposed sequential calibration method of transmission ratios.

Findings
In this experiment, the actual positions of the linkages before and after joint rotations are measured by a laser tracker. Accurate results of the reduction ratios and the coupling ratios are calculated, and the results are verified experimentally. The results show that by calibrating the reduction ratios and coupling ratios of the ABB robot, the rotation angle errors of the robot joints can be reduced.

Originality/value
The authors propose a sequential calibration method for transmission ratio parameters, including reduction ratios and coupling ratios of industrial robot joints. An experiment is carried out to verify this proposed sequential calibration method. This study may be beneficial for calibrating the kinematic parameters of industrial robots and improving their positioning accuracy.
Comparison of life cycle assessment for takeout meal packaging (kraft paper bowl and plastic bowl) based on Simapro
Authors: Shao Fenjuan , Cui Qingbin 
Published: September 2023

Purpose
This study aims to compare and analyze the impact of the commonly used takeout packing (Kraft paper bowl and plastic bowl) through life cycle assessment, then certain suggestions for the development of green packaging could be provided.

Design/methodology/approach
In this study, Simapro software was used to calculate and analyze the whole life cycle of takeout packaging from the stage of raw materials, production and processing and waste disposal.

Findings
Twelve environmental categories were used to quantitatively analyze the environmental impact of the two different bowls. The results showed that the impact of Kraft paper bowl on the environment was less than that of plastic bowl, regardless of raw material, processing or waste stage. Kraft paper bowl was better than plastic bowl.

Research limitations/implications
This study compared and analyzed the progress of 750-mL bowls made with different materials and specific specifications.

Practical implications
Green packaging is the development trend of the future packaging and follows the principle of reduce, resue, recycle, degradable. According to the calculation results, corresponding suggestions can be put forward from production, processing, use, waste and other aspects, and make corresponding contributions to the development of green packaging.

Originality/value
The contribution and impact of each stage of the product on the environment can be studied. The environmental impacts, such as global warming potential and water scarcity, can be reduced through different solutions, such as the use of green materials, good processing techniques and higher recycling rates.
What drives screening incentives in nonbank mortgage originators?
Authors: Ganduri Rohan 
Published: September 2023

AbstractNonbank mortgage originators, which operate through the originate‐to‐distribute (OTD) model, account for more than half of all the mortgage origination in the United States. However, less is known about which factors drive the quality of mortgage originations through nonbanks. I show that an exogenous shock that reduced collateral risk for funding intermediaries of nonbank mortgage originators led to a greater issuance of riskier mortgages that culminated in 10–30% higher ex post defaults. These results show how the quality of mortgage origination in the OTD model of nonbanks is affected by the collateral risk borne by their funding intermediaries. Overall, the results highlight funding intermediaries' monitoring incentives as one of the factors that drive the quality of mortgage originations through nonbanks.
Packaging films based on biopolymers from seafood processing wastes: Preparation, properties, and their applications for shelf‐life extension of seafoods—A comprehensive review
Authors: Gulzar Saqib , Tagrida Mohamed , Prodpran Thummanoon , Li Li , Benjakul Soottawat 
Published: September 2023

AbstractBiopolymers derived from seafood processing byproducts are used to prepare active and biodegradable films as the packaging of food products. These films possess bioactivities to enhance the shelf life of packed foods by proactively releasing antimicrobial/antioxidative agents into the foods and providing sufficient barrier properties. Seafood processing byproducts are an eminent source of valuable compounds, including biopolymers and bioactive compounds. These biopolymers, including collagen, gelatin, chitosan, and muscle proteins, could be used to prepare robust and sustainable food packaging with some antimicrobial agents or antioxidants, for example, plant extracts rich in polyphenols or essential oils. These active packaging are not only biodegradable but also prevent the deterioration of packed foods caused by spoilage microorganisms as well as chemical deterioration. Seafood discards have a promising benefit for the development of environmentally friendly food packaging systems via the appropriate preparation methods or techniques. Therefore, the green packaging from seafood leftover can be better exploited and replace the synthetic counterpart.
Effect of smoking habits and concomitant valproic acid use on relapse in patients with treatment‐resistant schizophrenia receiving clozapine: A 1‐year retrospective cohort study
Authors: Tsukahara Masaru , So Ryuhei , Yoshimura Yusaku , Yamashita Rieko , Yada Yuji , Kodama Masafumi , Nakajima Shinichiro , Kishi Yoshiki , Takeda Toshihiko , Yamada Norihito , Takeuchi Hiroyoshi 
Published: September 2023

AbstractIntroductionNo study has investigated the impact of smoking habits and concomitant valproic acid (VPA) use on clinical outcomes in maintenance treatment with clozapine. Thus, we aimed to examine the effect of smoking habits and concomitant VPA use on relapse during the first year after discharge in patients with treatment‐resistant schizophrenia (TRS) receiving clozapine.MethodsThis retrospective cohort study included patients with TRS who were initiated on clozapine during hospitalization and discharged between April 2012 and January 2021 in two tertiary psychiatric hospitals in Japan. Relapse was defined as rehospitalization due to psychiatric exacerbation during the first year after discharge. A multivariable Cox proportional hazards regression analysis was performed to analyze the effect of smoking habits and concomitant VPA use on relapse. Subgroup analyses were also conducted to examine potential interactions between smoking habits and concomitant VPA use.ResultsAmong the included 192 patients, 69 (35.9%) met the criteria of relapse. While smoking habits (adjusted hazard ratio [aHR], 2.27; 95% confidence interval [CI], 1.28–4.01; p < 0.01) independently increased the risk of relapse, a significant interaction for relapse risk was found between smoking habits and concomitant VPA use (p‐interaction = 0.015). Concomitant VPA use may be an effective modifier of the increased relapse risk associated with smoking habits. Among patients who smoked, those using VPA concomitantly exhibited a higher risk of relapse (aHR, 5.32; 95% CI, 1.68–16.9; p < 0.01) than those not using VPA (aHR, 1.41; 95% CI, 0.73–2.70; p = 0.30).ConclusionThe findings suggest that the combination of smoking habits and concomitant VPA use may increase the risk of relapse after discharge. Future studies are required to elucidate the mechanisms underlying these findings, such as a decrease in clozapine blood levels.
Proxy favors: Confidential proxy voting with institutional dual holders
Authors: Becker William J. , Mansi Sattar , Nazari Maryam , Wald John K. 
Published: September 2023

AbstractResearch Question/IssueFor firms with institutional dual holders, is proxy voting affected by whether the vote is confidential? Does confidential voting affect firms' cost of debt?Research Findings/InsightsConsistent with social exchange theory and reciprocity norms, we find that, in the absence of confidential voting, firms with institutional dual holders gain more favorable votes for proposals and, in particular, for management‐sponsored compensation proposals. Further, these firms pay a higher cost of borrowing. This reciprocity relation does not exist if the firm has confidential voting in place.Theoretical/Academic ImplicationsThe results are consistent with reciprocity norms creating a psychological obligation to repay valuable favors between firm managers and institutional dual holders when proxy votes are not confidential.Practitioner/Policy ImplicationsThe findings support the popular position that confidential voting is in the best interests of shareholders and rigorous external corporate governance.
State Life: Land, Welfare and Management of the Landless in Kerala, India
Authors: Sudheesh R.C. 
Published: September 2023

ABSTRACTThe pressing need to manage the spiralling number of landless people around the world has compelled several states to experiment with scattered land distribution programmes in combination with welfare transfers, instead of comprehensive land reform. This article examines the chasm between land demands and state responses in such contexts. Focusing on the Aralam resettlement site for the landless Adivasis in Kerala, India, it argues that management of the landless could take the form of ‘state life’ — a life envisaged by the state rather than the life the people wish to lead. Three interlinked processes are shown to shape state life in Kerala: the reduction of land to welfare, amplified welfare transfers and the mobilization of assumptions about the target population. State life enables states to extinguish simmering land struggles in the short term, but ultimately it reproduces landlessness.
Who cares for the carer? Codesigning a carer health and wellbeing clinic for older care partners of older people in Australia
Authors: Layton Natasha , Lalor Aislinn , Slatyer Susan , Lee Den‐Ching A , Bryant Christina , Watson Moira , Khushu Anjali , Burton Elissa , Oliveira Déborah , Brusco Natasha L. , Jacinto Alessandro , Tiller Elizabeth , Hill Keith D. 
Published: September 2023

AbstractIntroductionOlder carers or ‘care partners’ of older people experiencing care needs often provide essential support, at times while neglecting their own health and well‐being. This is an increasingly frequent scenario due to both demographic changes and policy shifts towards ageing in place. Multiple community stakeholders within the care and support ecosystem hold valuable expertise about the needs of older care partners, and the programme and policy responses that may better support their health and well‐being. The aim of this study was to identify the perspectives of stakeholders obtained through the codesign phase of a multicomponent research project investigating new models of care and support for older care partners suitable for the Australian context.MethodsPrinciples of codesign were used to engage a purposeful sample of older care partners, health professionals, researchers, policy makers and health service administrators. Participants took part in a series of three codesign workshops conducted remotely via video conferencing. The workshops were supported with briefing material and generated consensus‐based summaries, arriving at a preferred service model.FindingsThis paper reports the research design and structure of the codesign panels, the range of findings identified as important to support the health and well‐being of older carers of older people, and the resulting service model principles. The codesigned and preferred model of care is currently being prepared for implementation and evaluation in Australia.Public ContributionThis study was conducted using codesign methodology, whereby stakeholders including older care partners and others involved in supporting older carers, were integrally involved with design, development, results and conclusions.
Effect of mixed cation acetate electrolyte on synthesis of α‐hemihydrate gypsum from phosphogypsum
Authors: Min Junjie , Huang Jian , Hu Hailong , Manuka Mesfin , Yin Yunchao , Zhou Fengyang , Deng Hua , Yang Rong , Tang Pei , Ma Baoguo 
Published: September 2023

AbstractThe preparation of α‐hemihydrate gypsum (α‐HH) from phosphogypsum (PG) by atmospheric hydrothermal synthesis is a green and efficient method for the treatment of PG. The commonly used electrolyte solution today is mostly chlorine‐based. The prepared α‐HH based on chlorine salt solution is needlelike with a large aspect ratio, low strength, and high impurity. In this study, sodium‐ and calcium‐mixed cation acetate solution is designed and used as an organic multifunctional electrolyte to the synthesis of α‐HH for the first time. The effects of the mixed cation acetate electrolyte on crystal transformation, product morphology, and product purity of the prepared α‐HH were compared with those prepared with chloride solutions with the same mixed cations. Result showed that the morphology of α‐HH crystals prepared in acetate solutions is a stubby hexagonal prism. The aspect ratio of the prepared α‐HH crystals is close to 1, with 3‐day compressive strength four times higher than that of α‐HH prepared in chloride solutions. In addition, in comparison with chloride electrolyte, acetate electrolyte showed a complexation effect with impurity metal ions, which realized the efficient removal of impurities from PG and increased the purity of the synthesized α‐HH.
Structure evolution and adjustment of τf in (Ba, Sr)HfO3 and (Sr, Ca)HfO3 microwave dielectric ceramics
Authors: Wang Xi , Zhu Xiao Li , Li Lei , Chen Xiang Ming 
Published: September 2023

AbstractThe crystal structure evaluation of Ba1−xSrxHfO3 and Sr1−yCayHfO3 ceramics with varying composition was determined together with its influence on microwave dielectric characteristics. The variation mechanism of temperature coefficient of resonant frequency (τf) was discussed in details, and the strong correlation between τf and bond valence sum (BVS) and tolerance factor (t) was interpreted from the view point of energy. With increasing Sr‐content, the stable phase of Ba1−xSrxHfO3 at room temperature changed from Pmm (x ≤ 0.25) to I4/mcm (0.35 ≤ x ≤ 0.40), then to Imma (0.50 ≤x < 0.75) and finally to Pnma (0.75 ≤ x ≤ 1.0). The peak temperature of dielectric constant changed due to the structure transition, resulting in that τf rapidly declined at first, reached near zero, then slowly decreased, and finally rapidly decreased. Sr1−yCayHfO3 (0 ≤ y ≤ 1.0) belonged to space group Pnma. As the bond lengths and bond angles between B‐atom and O‐atom became more and more changeable (or BVS became smaller), the crystal could store more input heat energy through bond vibrational energy, and consequently τf became closer to zero with increasing Ca‐content, which was consistent with the physical meaning of the rattling effect on τf. With decreasing t, the dominant mechanisms responsible for tuning τf changed from (i) phase transition and (ii) dilution of ion polarizability to (iii) rattling effect. One could investigate what were the dominant mechanisms tuning τf and hopefully predict its trend with the help of τf–t graph. These findings provided a new idea for developing solid solution ceramics with excellent temperature stability.
Impact of intracardiac echocardiography usage on the safety of cryoballoon atrial fibrillation ablation: Subanalysis of the prospective FREEZE cluster cohort study
Authors: Pongratz Janis , Kuniss Malte , Wu Liqun , Tebbenjohanns Jürgen , Nölker Georg , Dorwarth Uwe , Kuck Karl‐Heinz , Jochen Senges , Hoffmann Ellen , Straube Florian ,   FREEZE Cohort Study Investigators
Published: September 2023

AbstractIntroductionCryoballoon ablation (CBA) aiming at pulmonary vein isolation (PVI) became a standardized atrial fibrillation (AF) ablation procedure. Life‐threatening complications like cardiac tamponade exist. Intracardiac echocardiography (ICE) usage is associated with superior safety in radiofrequency ablation. It is unclear if ICE has an impact on safety of CBA.MethodsThe FREEZE Cohort (NCT01360008) subanalysis included patients undergoing “PVI only” CBA. Patients with intraprocedural transesophageal echocardiography were excluded. Group A comprises conventional, group B ICE‐guided CBA. Periprocedural results were compared.ResultsFrom 2011 to 2016, a total of 4189 patients were enrolled, and 1906 (45.5%) were included in this subanalysis, split up in two groups (A: 1066 [55.9%], B: 840 [44.1%]). Group A was younger (60.6 ± 10.8 vs. 62.4 ± 10.5 years, p < .001), with smaller left atria (41 vs. 43 mm, p < .001), and less persistent AF (23.1 vs. 38.1%, p < .001). Procedure, left atrial, and fluoroscopy times were shorter in group A as compared to group B. Dose area product was significantly higher in group A (2911 vs. 2072 cGyxcm2, p < .001).In‐hospital major adverse cerebrovascular and cardiac event rates including two deaths in group A were not different between groups (0.5% vs. 0.1%, p = .18). The rate of total procedural (10.4% vs. 5.1%, p < .001) and major complications (3.2% vs. 1.3%, p < .001) was significantly higher in group A. Cardiac tamponade occurred significantly more frequently in group A (8 [0.8%] vs. 1 [0.1%], p = .046). Independent predictors for major complications were female sex (odds ratio [OR] 2.03, p = .03) and non‐ICE usage (OR 2.38, p = .02). No differences were observed for persistent phrenic nerve palsy, nor for groin complications.ConclusionCBA was significantly safer and required less radiation if ICE was used, although the procedures were more complex. The risk of groin complications was not increased with ICE usage. Non‐ICE usage was the only modifiable independent predictor of major complications.
Menstrual cycle characteristics, perceived impact on performance, and barriers to communication: Perspectives of high‐performance adolescent athletes in Singapore
Authors: Taim Bernadette Cherianne , Lye Jamie , Suppiah Haresh T. , Chan Tin Wing , Chia Michael , Clarke Anthea 
Published: September 2023

AbstractThe purpose of this study was to examine the menstrual cycle (MC) characteristics, explore the impact on performance, and identify barriers to and facilitators of MC‐related communication among high‐performance female adolescent athletes in Singapore. Ninety athletes (15.4 ± 1.8 years) from multiple sports completed an online questionnaire. Eighty‐four athletes were postmenarcheal (menarcheal age 11.9 ± 1.3 years), including two who were using an oral contraceptive pill (OCP). Secondary amenorrhea, current or history of, was self‐reported in 16% of athletes. Sixty‐two percent and 67% of non‐OCP athletes perceived that the MC affected their ability to train and compete, respectively. Athletes preferred speaking to a parent (85%) and a female figure (67%) about MC‐related concerns. Through thematic analysis, three barriers to communication were constructed: (1) pervasive menstrual stigma, (2) constraints of the training environment, and (3) the low value placed on MC‐related conversations. Two facilitators of communication were constructed: (1) respect athletes' individual experiences as menstruating girls and (2) foster a safe space for MC‐related conversations. Findings demonstrated that menstrual irregularities are common in adolescent athletes and screening for MC disorders, particularly primary amenorrhea should be undertaken in this population, with clear support pathways for management including symptom mitigation. To support athletes in raising MC‐related concerns when needed, structured communication pathways that consider individual preferences and involve a (female) point of contact should be established within the training environment. Improving menstrual health literacy among adolescent athletes before any misinformation or negative perceptions are firmly established may contribute to longevity in their athletic careers.
Inhibitory checkpoint molecule mRNA expression in canine soft tissue sarcoma
Authors: Stevenson Valentina Beatriz , Gudenschwager‐Basso Erwin Kristobal , Klahn Shawna , LeRoith Tanya , Huckle William R. 
Published: September 2023

AbstractCanine soft tissue sarcomas (STS) are common neoplasms and considered immune deserts. Tumour infiltrating lymphocytes are sparse in STS and, when present, tend to organize around blood vessels or at the periphery of the neoplasm. This pattern is associated with an immunosuppressive tumour microenvironment linked to overexpression of molecules of the PD‐axis. PD‐1, PD‐L1 and PD‐L2 expression correlates with malignancy and poor prognosis in other neoplasms in humans and dogs, but little is known about their role in canine STS, their relationship to tumour grade, and how different therapies affect expression. The objective of this study was to evaluate the expression of checkpoint molecules across STS tumour grades and after tumour ablation treatment. Gene expression analysis was performed by reverse‐transcriptase real‐time quantitative PCR in soft tissue sarcomas that underwent histotripsy and from histologic specimens of STS from the Virginia Tech Animal Laboratory Services archives. The expression of PD‐1, PD‐L1 and PD‐L2 was detected in untreated STS tissue representing grades 1, 2, and 3. Numerically decreased expression of all markers was observed in tissue sampled from the treatment interface relative to untreated areas of the tumour. The relatively lower expression of these checkpoint molecules at the periphery of the treated area may be related to liquefactive necrosis induced by the histotripsy treatment, and would potentially allow TILs to infiltrate the tumour. Relative increases of these checkpoint molecules in tumours of a higher grade and alongside immune cell infiltration are consistent with previous reports that associate their expression with malignancy.