bluuebunny/crossref_metadata_2025_split huggingface dataset:
History Matters: The Impact of Online Customer Reviews Across Product Generations
Authors: Li Linyi , Gopinath Shyam , Carson Stephen J. 
Published: July 2021

We examine how online customer reviews for one generation of a product affect sales of another generation in the same product series. The main intriguing result is that previous generation valence has a positive impact on current generation sales; however, current generation valence has a negative impact on previous generation sales. The positive impact of previous generation valence becomes even stronger (1) as the uncertainty (standard deviation) in reviews for the current generation increases and (2) when the current generation valence is high. In contrast, it becomes weaker (1) as the uncertainty in reviews for the previous generation increases and (2) when the current generation has been on the market for a longer period of time. Other results are discussed. Our data consist of intergenerational pairs of point-and-shoot cameras on the largest online seller of such devices, Amazon.com. We estimate the current and previous generation models jointly, allowing for errors to be clustered at the daily and product levels. In addition, we address endogeneity concerns over the online word of mouth measures by using instrumental variables. This paper was accepted by Juanjuan Zhang, marketing.
Memorial
Authors: Duarte Ferreira Filho Valter 
Published: July 2021

Este memorial foi defendido no dia 11 de junho de 2019. A banca examinadora foi composta pelos Professores Lená Medeiros de Menezes (presidente), José Augusto Messias, André Leonardo Chevitarese, Guilherme Castelo Branco e Reinaldo Castro Souza.
Managing postpartum haemorrhage with free-flow pressure-controlled uterine balloons
Authors: Theron Gerhard , Johnson Marvina 
Published: July 2021

Background/aims Uterine balloon tamponade is an accepted management method for refractory postpartum haemorrhage. A previous case series was conducted in Cape Town, South Africa with a uterine balloon tamponade used by doctors, where the success rate was 78.9%. The next step was the roll out of the skill to midwives in midwife obstetric units, which was investigated in this study. Methods A case series was conducted in six midwife obstetric units in Metro-East, Cape Town. Hands-on training workshops and one-to-one training sessions were conducted, that aimed at 80% coverage. Following this training, the devices were made available to midwife obstetric units at no cost, along with instructions for their use. Structured interviews were conducted with midwives that used the device during the study period. The interview included questions about correct placement of the uterine balloon, ease of placement and effect on uterine bleeding. Results Training saturation ranged between 92% and 100%. A total of 12 cases with 10 attempted placements were reported, of which eight were performed by midwives. In all eight cases, the bleeding stopped quickly following inflation of the uterine balloon. Use of the uterine balloon tamponade for postpartum haemorrhage treatment was received with enthusiasm by midwives and the skill was easy to acquire. The additional management option for postpartum haemorrhage was welcomed. Conclusions The skill of using a uterine balloon tamponade was easily acquired by the midwives. This device should be included in the postpartum haemorrhage management bundle, as it will reduce blood loss in refractory cases, resulting in safer transfers.
Timing and factors associated with early antenatal visits among pregnant women in west Gojjam, northwest Ethiopia
Authors: Alene Amelework Getinet , Olayemi Oladapo O , Berhane Yemane 
Published: July 2021

Background Early and appropriate antenatal care practices have the potential to save the lives of mothers and their children, and enable mothers to receive the full range of antenatal care services. However, in developing countries, including Ethiopia, a number of pregnant women do not attend antenatal care in the recommended time period. Therefore, this article assessed the timing and factors associated with early antenatal care visits in west Gojjam, northwest Ethiopia. Methods An institution-based cross-sectional study was conducted among pregnant women attending antenatal care services in west Gojjam. Data on participants' sociodemographic, obostetric and reproductive health information were collected from 820 participants using a structured interviewer-administered pretested questionnaire. Bivariate and multivariate logistic regression analyses were used to identify variables associated with early antenatal care visits. Variables with P<0.05 were considered significant. A visit was considered ‘early’ if a pregnant woman attended their first antenatal care session within the first 12 weeks of gestation. Results Almost a third (31.5%) of mothers started antenatal care early. The mean gestational age at the first visit was 17 weeks (standard deviation±7.7), with a range of 3–36 weeks. In multivariate analysis, it was found that being nulliparous (adjusted odds ratio: 2.3; P=0.013), travel time to the health facility being less than 30 minutes (adjusted odds ratio: 6.1; P<0.001) and living in an urban area (adjusted odds ratio: 2.4; P=0.001) were significantly associated with attending antenatal care early. Conclusions Early first antenatal care attendance was low in the study area. It is important to decentralise the provision of antenatal care services at health posts through an outreach service, by strengthening the mobilisation, screening and early referral system through health extension workers and the women development army. This will allow more women to receive antenatal care from skilled providers.
Sexual selection theory meets disease vector control: Testing harmonic convergence as a “good genes” signal in Aedes aegypti mosquitoes
Authors: League Garrett P. , Harrington Laura C. , Pitcher Sylvie A. , Geyer Julie K. , Baxter Lindsay L. , Montijo Julian , Rowland John G. , Johnson Lynn M. , Murdock Courtney C. , Cator Lauren J. 
Published: July 2021

Background
The mosquito Aedes aegypti is a medically important, globally distributed vector of the viruses that cause dengue, yellow fever, chikungunya, and Zika. Although reproduction and mate choice are key components of vector population dynamics and control, our understanding of the mechanisms of sexual selection in mosquitoes remains poor. In “good genes” models of sexual selection, females use male cues as an indicator of both mate and offspring genetic quality. Recent studies in Ae. aegypti provide evidence that male wingbeats may signal aspects of offspring quality and performance during mate selection in a process known as harmonic convergence. However, the extent to which harmonic convergence may signal overall inherent quality of mates and their offspring remains unknown.

Methodology/Principal findings
To examine this, we measured the relationship between acoustic signaling and a broad panel of parent and offspring fitness traits in two generations of field-derived Ae. aegypti originating from dengue-endemic field sites in Thailand. Our data show that in this population of mosquitoes, harmonic convergence does not signal male fertility, female fecundity, or male flight performance traits, which despite displaying robust variability in both parents and their offspring were only weakly heritable.

Conclusions/Significance
Together, our findings suggest that vector reproductive control programs should treat harmonic convergence as an indicator of some, but not all aspects of inherent quality, and that sexual selection likely affects Ae. aegypti in a trait-, population-, and environment-dependent manner.
Digital occlusal analysis of pre and post single posterior implant restoration delivery: A pilot study
Authors: Zhou Ting , Wongpairojpanich Jirapa , Sareethammanuwat Maytha , Lilakhunakon Charukrit , Buranawat Borvornwut 
Published: July 2021

Objectives
The purposes of this study were to analyze the effects of single posterior implant restorations delivery on the redistribution of bite force and to evaluate the changes in occlusal force distribution of prostheses and potential influencing factors on occlusion variation at different stages.

Materials and methods
Thirty-two single posterior restorations in 30 participants (18 women and 12 men aged 27 to 75 years) were placed into either a unilateral single-tooth defect (n = 17) or on either side of a bilateral teeth defects (n = 15). The bite force (%) of the prostheses, teeth and segments at the maximum intercuspation position (MIP) was evaluated using a T-scan at 5 stages (pre-placement, immediately following placement, and 2 weeks, 3 months, and 6 months post-placement).

Results
The occlusal force of implant-supported prostheses was significantly (P = .000) lower than those of the control natural teeth at the baseline, then no significant difference was found with that of the mesial teeth at 3 months, and finally it was significantly (P = .000) lower than that of the distal teeth at 6 months; meanwhile, it significantly (P = .008) increased by a mean of 2.04 times from 2 weeks (3.39 ± 2.61%) to 3 months (6.90 ± 4.77%), whereas no significant difference (P = .900) was found from 3 months (6.90 ± 4.77%) to 6 months (7.31 ± 4.60%). In addition, the bite force of the posterior segment on the restored side of both unilateral and bilateral gaps was significantly (P = .013,.001) improved by 3.31% and 6.83%, respectively, although the discrepancy in bite force significantly (P = .039) increased from an initial 3.52% to 5.02% for subjects with bilateral defects, accompanying increases in the proportion (15.38%) of the level III bilateral bite force deviation (P >.05).

Conclusions
Bite force and masticatory ability can be improved with the immediate delivery of a single posterior implant restoration. The bite force distributed on the implant prosthesis inevitably increases after placement of implant prostheses, a routine follow-up and occlusal evaluation are strongly needed.
The impact of measuring split kidney function on post-donation kidney function: A retrospective cohort study
Authors: Harper Kelly C. , Salameh Jean-Paul , Akhlaq Natasha , McInnes Matthew D. F. , Ivankovic Victoria , Beydoun Mahdi H. , Clark Edward G. , Zeng Wanzhen , Blew Brian D. M. , Burns Kevin D. , Sood Manish M. , Bugeja Ann 
Published: July 2021

Background
Studies have reported agreement between computed tomography (CT) and renography for the determination of split kidney function. However, their correlation with post-donation kidney function remains unclear. We compared CT measurements with renography in assessment of split kidney function (SKF) and their correlations with post-donation kidney function.

Methods
A single-centre, retrospective cohort study of 248 donors from January 1, 2009-July 31, 2019 were assessed. Pearson correlations were used to assess post-donation kidney function with renography and CT-based measurements. Furthermore, we examined high risk groups with SKF difference greater than 10% on renography and donors with post-donation eGFR less than 60 mL/min/1.73m2.

Results
62% of donors were women with a mean (standard deviation) pre-donation eGFR 99 (20) and post-donation eGFR 67 (22) mL/min/1.73m2 at 31 months of follow-up. Post-donation kidney function was poorly correlated with both CT-based measurements and renography, including the subgroup of donors with post-donation eGFR less than 60 mL/min/1.73m2 (r less than 0.4 for all). There was agreement between CT-based measurements and renography for SKF determination (Bland-Altman agreement [bias, 95% limits of agreement] for renography vs: CT volume, 0.76%, -7.60–9.15%; modified ellipsoid,1.01%, -8.38–10.42%; CC dimension, 0.44%, -7.06–7.94); however, CT missed SKF greater than 10% found by renography in 20 out 26 (77%) of donors.

Conclusions
In a single centre study of 248 living donors, we found no correlation between CT or renography and post-donation eGFR. Further research is needed to determine optimal ways to predict remaining kidney function after donation.
Occupational exposures in the operating room: Are surgeons well-equipped?
Authors: Landford Wilmina N. , Ngaage Ledibabari M. , Lee Erica , Rasko Yvonne , Yang Robin , Slezak Sheri , Redett Richard 
Published: July 2021

Background
Occupational health hazards are ubiquitously found in the operating room, guaranteeing an inevitable risk of exposure to the surgeon. Although provisions on occupational health and safety in healthcare exist, they do not address non-traditional hazards found in the operating room. In order to determine whether surgeons or trainees receive any form of occupational health training, we examine the associations between occupational health training and exposure rate.

Study design
A cross-sectional survey was distributed. Respondent characteristics included academic level, race/ethnicity, and gender. The survey evaluated seven surgical disciplines and 13 occupational hazards. Multivariable logistic regression was used to examine the association between academic level, surgical specialty, and exposure rate.

Results
Our cohort of 183 respondents (33.1% response rate) consisted of attendings (n = 72, 39.3%) and trainees (n = 111, 60.7%). Surgical trainees were less likely to have been trained in cytotoxic drugs (OR 0.22, p<0.001), methylmethacrylate (OR 0.15, p<0.001), patient lifting (OR 0.43, p = 0.009), radiation (OR 0.40, p = 0.007), and surgical smoke (OR 0.41, p = 0.041) than attending surgeons. Additionally, trainees were more likely to experience frequent exposure to bloodborne pathogens (OR 5.26, p<0.001), methylmethacrylate (OR 2.86, p<0.001), cytotoxic drugs (OR 3.03, p<0.001), and formaldehyde (2.08, p = 0.011), to name a few.

Conclusion
Although surgeon safety is not a domain in residency training, standardized efforts to educate and change the culture of safety in residency programs is warranted. Our study demonstrates a disparity between trainees and attendings with a recommendation to provide formal training to trainees independent of their anticipated risk of exposure.
Registered Report Protocol: Survey on attitudes and experiences regarding preregistration in psychological research
Authors: Spitzer Lisa , Mueller Stefanie 
Published: July 2021

BackgroundPreregistration, the open science practice of specifying and registering details of a planned study prior to knowing the data, increases the transparency and reproducibility of research. Large-scale replication attempts for psychological results yielded shockingly low success rates and contributed to an increasing demand for open science practices among psychologists. However, preregistering one’s studies is still not the norm in the field. Here, we propose a study to explore possible reasons for this discrepancy.MethodsIn a mixed-methods approach, an online survey will be conducted, assessing attitudes, motivations, and perceived obstacles with respect to preregistration. Participants will be psychological researchers that will be recruited by scanning research articles on Web of Science, PubMed, PSYNDEX, and PsycInfo, and preregistrations on OSF Registries (targeted sample size:N= 296). Based on the theory of planned behavior, we predict that positive attitudes (moderated by the perceived importance of preregistration) as well as a favorable subjective norm and higher perceived behavioral control positively influence researchers’ intention to preregister (hypothesis 1). Furthermore, we expect an influence of research experience on attitudes and perceived motivations and obstacles regarding preregistration (hypothesis 2). We will analyze these hypotheses with multiple regression models, and will include preregistration experience as control variable.
Admission systolic blood pressure as a prognostic predictor of acute decompensated heart failure: A report from the KCHF registry
Authors: Kawase Yuichi , Kato Takao , Morimoto Takeshi , Hata Reo , Murai Ryosuke , Tada Takeshi , Katoh Harumi , Kadota Kazushige , Yamamoto Erika , Yaku Hidenori , Inuzuka Yasutaka , Tamaki Yodo , Ozasa Neiko , Yoshikawa Yusuke , Iguchi Moritake , Nagao Kazuya , Sato Yukihito , Kuwahara Koichiro , Kimura Takeshi 
Published: July 2021

BackgroundAdmission systolic blood pressure has emerged as a predictor of postdischarge outcomes of patients with acute decompensated heart failure; however, its validity in varied clinical conditions of this patient subset is unclear. The aim of this study was to further explore the prognostic value of admission systolic blood pressure in patients with acute decompensated heart failure.MethodsThe Kyoto Congestive Heart Failure (KCHF) registry is a prospective, observational, multicenter cohort study enrolling consecutive patients with acute decompensated heart failure from 19 participating hospitals in Japan. Clinical characteristics at baseline and prognosis were examined by the following value range of admission systolic blood pressure: <100, 100–139, and ≥140 mmHg. The primary outcome measure was defined as all-cause death after discharge. Subgroup analyses were done for prior hospitalization for heart failure, hypertension, left ventricular ejection fraction, and medications at discharge. We excluded patients with acute coronary syndrome or insufficient data.ResultsWe analyzed 3564 patients discharged alive out of 3804 patients hospitalized for acute decompensated heart failure. In the entire cohort, lower admission systolic blood pressure was associated with poor outcomes (1-year cumulative incidence of all-cause death: <100 mmHg, 26.8%; 100–139 mmHg, 20.2%; and ≥140 mmHg, 15.1%, p<0.001). The magnitude of the effect of lower admission systolic blood pressure for postdischarge all-cause death was greater in patients with prior hospitalization for heart failure, heart failure with reduced left ventricular ejection fraction, and β-blocker use at discharge than in those without.ConclusionsAdmission systolic blood pressure is useful for postdischarge risk stratification in patients with acute decompensated heart failure. Its magnitude of the effect as a prognostic predictor may differ across clinical conditions of patients.
Does greater patient involvement in healthcare decision-making affect malpractice complaints? A large case vignette survey
Authors: Birkeland Søren , Bismark Marie , Barry Michael J. , Möller Sören 
Published: July 2021

Background
Although research findings consistently find poor communication about medical procedures to be a key predictor of patient complaints, compensation claims, and malpractice lawsuits (“complaints”), there is insufficient evidence to determine if greater patient involvement could actually affect the inclination to complain.

Objectives
We conducted an experimental case vignette survey that explores whether greater patient involvement in decision-making is likely to influence the intention to complain given different decisions and consequences.

Methods
Randomized, national case vignette survey with various levels of patient involvement, decisions, and outcomes in a representative Danish sample of men. We used prostate specific antigen (PSA) screening in men aged 45 to 70 years as the intervention illustrated in 30 different versions of a mock clinical encounter. Versions differed in the amount of patient involvement, the decision made (PSA test or no PSA test), and the clinical outcomes (no cancer detected, detection of treatable cancer, and detection of non-treatable cancer). We measured respondents’ inclination to complain about care in response to the scenarios on a 5-point Likert scale (from 1: very unlikely to 5: very likely).

Results
The response rate was 30% (6,756 of 22,288). Across all scenarios, the likelihood of complaint increased if the clinical outcome was poor (untreatable cancer). Compared with scenarios that involved shared decision-making (SDM), neutral information, or nudging in favor of screening, the urge to complain increased if the patient was excluded from decision-making or if the doctor had nudged the patient to decline screening (mean Likert differences .12 to .16, p < .001). With neutral involvement or nudging in favor of intervention, the desire to complain depended highly on the decision reached and on the patient’s course. This dependence was smaller with SDM.

Conclusions
Greater patient involvement in decision-making appears to be associated with less intention to complain about health care, with SDM resulting in the greatest reduction in complaint likelihood.
Relationship between average daily rehabilitation time and decline in instrumental activity of daily living among older patients with heart failure: A preliminary analysis of a multicenter cohort study, SURUGA-CARE
Authors: Kato Michitaka , Mori Yuji , Watanabe Daisuke , Onoda Hiroshige , Fujiyama Keita , Toda Masahiro , Kito Kazuya 
Published: July 2021

Background
Limitation of instrumental activity of daily living (IADL) is independently associated with an adverse prognosis in older heart failure (HF) patients.

Aims
This multicenter study aims to examine the relationship between average daily rehabilitation time (ADRT) and risk of IADL decline during acute hospitalization in older patients with HF.

Methods
Four hundred eleven older patients who were hospitalized due to acute HF and underwent rehabilitation were divided into three groups based on the tertile of the ADRT: short, intermediate, and long groups. IADL was assessed by the National Center for Geriatrics and Gerontology Activities of Daily Living (NCGG-ADL) scale. Change in NCGG-ADL (Δ NCGG-ADL) was calculated by subtracting the pre-hospitalization score from the at-discharge score and IADL decline was defined as Δ NCGG-ADL < = −1 point. Logistic regression analysis was carried out examining the association between ADRT and occurrence of IADL decline.

Results
The ADRT was 23.9, 32.0, and 38.6 minutes in short, intermediate, and long group, respectively. The proportion of patients with IADL decline during hospitalization was 21% among all subjects and short group had the highest proportion of IADL decline (33%) and long group had the lowest proportion (14%). The long group had significantly lower odds of IADL decline compared with the short group (OR:0.475, 95% CI:0.231–0.975, P = 0.042). Among the items of NCGG-ADL scale, significant decreases in the “go out by oneself”, “travel using a bus or train”, “shop for necessities”, “vacuum”, and “manage medication” were observed at discharge compared to pre-hospitalization in the short group (p<0.01, p<0.01, p<0.01, p<0.05, and p<0.05).

Conclusions
The present study demonstrated that short of ADRT may be associated with the risk of IADL decline during hospitalization in older patients with HF.