bluuebunny/crossref_metadata_2025_split huggingface dataset:
Temporal changes in hospital readmissions for postpartum hypertension in the US, 2010 to 2019; a serial cross-sectional analysis
Authors: Deshpande Ashwini , Agnihotri Deepti , Campbell Alexa I. K. , Federspiel Jerome J. , Myers Evan R. , Ogbuoji Osondu 
Published: January 2025

Background
Hypertension is the most common primary diagnosis associated with postpartum readmissions within 42 days of delivery hospitalization. In the United States, nearly half of the cases of eclampsia, a severe form of preeclampsia, develop during the postpartum period, and the postpartum onset of hypertensive disorders of pregnancy, like antepartum hypertension poses long-term health risks to pregnant individuals, including an increased likelihood of developing overall cardiovascular disease, coronary heart disease, heart failure, and chronic hypertension. In this paper, we estimate the trends in the incidence of readmissions for postpartum hypertension within 42 days of delivery discharge in the US, disaggregated by median household income.

Methods and findings
Using National Readmissions Database, we calculated the readmission rates for postpartum hypertension, both overall and stratified by ZIP Code median household income for each year between 2010 and 2019. We also calculated the percentage change and average annual growth rate (AAGR) in the rate of readmissions for postpartum hypertension between 2010 and 2019 for each income group. We then used a logistic regression model to compare the temporal changes in readmission for postpartum hypertension between the lowest and the highest income quartiles. The estimated incidence of postpartum hypertension readmissions doubled for all the income groups between 2010 and 2019 (0.36% vs. 0.8%). While the incidence of postpartum hypertension cases was higher among the lowest-income quartile, the increase in postpartum hypertension readmissions between 2010 and 2019 was greater in the highest-income quartile. Moreover, the incidence of postpartum hypertension readmissions rose faster in pregnant patients without a history of hypertension compared to those with a history of hypertension (AAGR 8.3% vs. 5.1%).

Conclusion
The increasing postpartum hypertension readmission burden suggests rising future health risks among mothers and a growing cost burden to the U.S. healthcare system. The higher rate of increase in postpartum hypertension readmissions among people without a history of hypertension calls for blood pressure checking in the postpartum period for all patients regardless of risk status.
Ongoing measles outbreak in Romania: Clinical investigation and molecular epidemiology performed on whole genome sequences
Authors: Hohan Robert , Surleac Marius , Miron Victor Daniel , Tudor Andreea , Tudor Ana-Maria , Săndulescu Oana , Vlaicu Ovidiu , Aramă Victoria , Pițigoi Daniela , Hristea Adriana , Drăgănescu Anca Cristina , Paraskevis Dimitrios , Bănică Leontina , Oțelea Dan , Paraschiv Simona 
Published: January 2025

Aim
Romania is currently facing a prolonged measles outbreak. The aim of the study was to analyse the circulating human measles virus (HMV) strains by combining whole genome sequencing (WGS) with phylogenetic analysis, with a focus on the haemagglutinin gene.

Methods
We conducted an observational study in the first five months of 2024, in which 168 patients diagnosed with measles were randomly included. We have evaluated the clinical and epidemiological differences between children and adults. Screening for samples to be sequenced was performed with a commercial kit (PrimerDesign). WGS was done on Illumina MiSeq platform and phylogenetic analysis was performed with ML FastTree.

Results
No significant epidemiological and clinical differences between patients in the two age groups were identified. WGS was successfully performed for a number of 124 HMV strains. Genotype analysis indicated all the sequences as D8, except one that was B3. Phylogenetic analysis identified two well supported clusters, suggestive for at least two local transmission networks in Romania. One large transmission network (n = 108) consisted of sequences both from adults and children. Only one sequence from outside Romania (reported in Russia in 2023) clustered within this group. Another small transmission cluster was identified (14 sequences of which 11 from patients infected in the spring of 2024 and three in 2022). A few differences between the two co-circulating viral variants/clusters were observed. The median duration of hospitalisation was 2 days longer for patients in smaller cluster compared to those in the larger one (p = 0.019). Furthermore, these two clusters presented different mutation profiles in the hemagglutinin (HA) and neuraminidase (N) genes with implications for molecular surveillance.

Conclusion
The current measles epidemic in Romania is driven mainly by two D8 genotype variants with different mutation profiles and slightly different severity of the disease, highlighting the usefulness of sustained molecular surveillance.
Prevalence and determinants of unhealthy feeding practices among young children aged 6–23 months in five sub-Saharan African countries
Authors: Tekeba Berhan , Tamir Tadesse Tarik , Workneh Belayneh Shetie , Wassie Mulugeta , Terefe Bewuketu , Ali Mohammed Seid , Mekonen Enyew Getaneh , Zegeye Alebachew Ferede , Zeleke Gebreeyesus Abera , Aemro Agazhe 
Published: January 2025

Introduction
Despite the World Health Organization’s advice against unhealthy feeding, many low- and middle-income countries, including sub-Saharan Africa (SSA) countries, are experiencing a nutritional transition to high in sugar, unhealthy fats, salts, and processed carbohydrates for younger children. However, there is a scarcity of recently updated multicounty information on unhealthy feeding practices and determinants in SSA countries. Therefore, this study aimed to assess the pooled prevalence of unhealthy feeding practices and determinants among children aged 6–23 months in five SSA countries.

Method
A cross-sectional study design was employed with the most recent demographic and health survey secondary data (DHS) from five SSA countries. This secondary data was accessed from the DHS portal through an online request. The DHS is the global data collection initiative that provides detailed and high-quality data on population demographics, health, and nutrition in low- and middle-income countries. We used a weighted sample of 14,064 children aged 6–23 months. A multilevel mixed-effect binary logistic regression model was fitted to identify significant factors associated with unhealthy feeding practices. The level of statistical significance was declared with p-value < 0.05.

Result
This study found that overall, 62.4% (95% CI: 61.62–63.17) of children aged 6–23 months in five SSA countries had unhealthy feeding practices. Rural residents, lower-middle-income SSA countries, and children aged above 12 months had lower odds of unhealthy feeding practices. On the other hand, richer households and women who had not had an optimal antenatal care visit had higher odds of unhealthy feeding practices.

Conclusion
According to this study, nearly two out of three young children in five SSA countries had unhealthy feeding practices. Both individual and community-level factors are significantly associated with unhealthy feeding practices. As a result, responsible bodies shall make all efforts to reduce unhealthy feeding practices among young children in SSA countries.
Existence of two infinite families of solutions to a
singular superlinear equation on exterior domains
Authors: Aryal Narayan , Iaia Joseph 
Published: January 2025

We are concerned with the radial solutions of the Dirichlet
problem

−

Δ

u
=
K
(

|

x

|

)
f
(
u
)

on the exterior of the ball of
radius

R
>
0

centered at the origin in

R

N

with
N

≥

3

where

f

is superlinear at

∞

and has a
singularity at

0

with

f
(
u
)

∼

1

|

u

|

q

−

1

u

and
0
<
q
<
1

for small

u

. We prove that if

K
(

|

x

|

)

∼

|

x

|

−

α

with

α

>
2
(
N

−

1
)

then there exist two
infinite families of sign-changing radial
solutions.
Normalized solutions for Kirchhoff-type equations with
combined
nonlinearities: the

L
2

-critical case
Authors: Liu Changlin , Lv Ying , Ou Zeng-Qi 
Published: January 2025

In this paper, we consider the existence of normalized
solutions
for the following Kirchhoff-type problem:

−

(

a
+
b

∫

R

N

|

∇

u

|

2

d
x

)

Δ

u
=

λ

u
+

|

u

|

p

−

2

u
+

μ

|

u

|

q

−

2

u

in

R

N

,

with prescribed

L

2

-norm:

∫

R

N

|

u

|

2

d
x
=

c

2

,

where

N
=
2
,
3

,

a

≥

0

,

b
>
0

and

c
>
0

are constants,

λ

∈

R

,

2
<
q
<
p
=
2
+

8
N

and

μ

>
0

. The
number

2
+

8
N

behaves as the

L
2

-critical exponent for
the
above problem. We prove the multiplicity
of normalized
solutions
for the above Kirchhoff-type problem with

L
2

-critical
nonlinearity (that is,

p
=
2
+

8
N

) in the two cases:

2
<
q
<
2
+

4
N

and

2
+

4
N

<
q
<
2
+

8
N

.
Green Securitization, A Legal Structure Currently Unfit for Ecological Transition
Authors: Cornut St-Pierre Pascale , Gareau-Lindsay Jasmine 
Published: January 2025

Abstract
Ever since the 2007–2008 financial crisis, the European banking sector and its regulating authorities have been seeking to revive securitization markets in Europe. The most recent attempt in this direction is the inscription of green securitization in the European sustainable finance agenda. Building on Katharina Pistor’s work on the legal coding of capital as well as Eve Chiapello’s work on financialization as a socio-technical process, our proposed contribution focuses on the legal structuring of green securitization. Based on the legal documentation and sustainability frameworks of four recent green securitization deals tied to energy-efficiency home improvements, it critically examines the new kind of financial circuits that is being constructed to channel funds towards projects deemed to create positive impacts on the environment. Our analysis shows that green securitization’s current legal structure fails to properly incorporate sustainability considerations, whether in its contractual terms, financial metrics, or parties involved.
CMSP exerts anti-tumor effects on small cell lung cancer cells by inducing mitochondrial dysfunction and ferroptosis
Authors: Yan Xi , Niu Yinghao , Wang Yaojie , Wei Sisi , Han Lina , Guo Zhongyu , Zhao Lianmei , Gao Feng 
Published: January 2025

Abstract

Purpose
This study aims to investigate the role and mechanism of p-hydroxyl cinnamaldehyde (CMSP) in triggering ferroptosis of small cell lung cancer (SCLC) cells.

Methods
The impact of CMSP on ferroptosis in H1688 and SW1271 cells was assessed through cell experiments and biological information analysis. Moreover, the expression of heme oxygenase 1 (HMOX1) in SCLC tissue was examined.

Results
Following CMSP treatment, a concentration-dependent increase in cell death was observed, and differentially expressed genes were found to be associated with ferroptosis. CMSP notably facilitated ferroptosis events, such as elevated levels of reactive oxygen species (ROS), Fe2+, malondialdehyde (MDA), transferrin receptor 1 (TFR1), divalent metal transporter 1 (DMT1), and decreased levels of glutathione (GSH), solute carrier family 7 member 11 (SLC7A11), and glutathione peroxidase 4 (GPX4). Furthermore, CMSP promoted mitochondrial dysfunction, manifested as reduced mitochondrial volume, increased membrane density, elevated mitochondrial ROS, and decreased mitochondrial membrane potential. Consistently, the mitochondrial-targeted antioxidant Mito-TEMPO reversed CMSP-induced ferroptosis. Expression of the HMOX1 gene was markedly increased under CMSP treatment, while lower expression was observed in cancer tissue compared to adjacent tissue.

Conclusion
CMSP triggers mitochondrial dysfunction via HMOX1 activation, leading to ferroptosis in SCLC cells, underscoring its potential as a therapeutic agent for SCLC.
Effects of Maturation on the Magnitude and Direction of Asymmetry in Jumping and Change of Direction Speed in Young Elite Football Players
Authors: Gonzalo-Skok Oliver , Bishop Chris 
Published: January 2025

Abstract
Gonzalo-Skok, O and Bishop, C. Effects of maturation on the magnitude and direction of asymmetry in jumping and change of direction speed in young elite football players. J Strength Cond Res XX(X): 000–000, 2024—Physical performance is often affected by maturation in young athletes and provides an interesting challenge to optimize performance. The present study analyzed whether maturation affects directional dominance, chronological age, body mass, and biological age predictors and assessed between chronological or biological age-group differences in young footballers. One hundred eight elite male players (U-15 to U-19) were tested on bilateral vertical and unilateral vertical and horizontal jumping, sprinting (40 m), and change of direction (COD) ability over single and multiple CODs (times and the percentage-based COD deficit [%CODD]). Almost half of the players (45%) at post–peak height velocity (PHV) showed consistency in the direction of asymmetry (jumping and COD). Ten-meter sprint time was the main predictor to explain the %CODD. Standing height affects unilateral horizontal jumping, and peak speed and unilateral horizontal jumping were the main predictors for unilateral vertical jumping. Post-PHV reported significantly (p < 0.05, effect size [ES] = 0.76–1.50) greater vertical and horizontal jumping, and linear and COD speed performance than mid-PHV. Significant differences (p < 0.05) in jumping, sprinting, and COD performance were found between U-15 and the rest of groups. Furthermore, the U-16 group showed a significant difference (p < 0.05) to the U-19 (for peak speed) and U-18 groups (for 40-m sprint and peak speed). Significantly (p = 0.04, ES = 0.47) lower %CODD asymmetries were found in mid-PHV compared with post-PHV. The study highlights the impact of maturation on the direction of asymmetry, tending to show the same weak side as maturation increases (i.e., older, and more experienced and mature players). Finally, decreasing between-limbs asymmetry should be considered during maturation, especially as greater football specialization.
Effects of Soccer Match-Play on Muscle Strength, Physical Performance, and Perceptual Responses in Elite Female Players
Authors: Gereduz Agapito Laura , Brownstein Callum G. , Maffiuletti Nicola A. 
Published: January 2025

Abstract
Gereduz Agapito, L, Brownstein, CG, and Maffiuletti, NA. Effects of soccer match-play on muscle strength, physical performance, and perceptual responses in elite female players. J Strength Cond Res XX(X): 000–000, 2024—The purpose of this study was to investigate the impact of actual soccer match-play on muscle strength, physical performance, and perceptual responses in elite female players. Twelve Swiss elite players were tested before (pre), after (post) and 48 hours after a 90-minute soccer match for knee and hip muscle strength, vertical jump height, and sprint time. Perceptual responses were also evaluated up to 72 hours postmatch with a self-reported questionnaire. Muscle strength, jump, and sprint performance were impaired at post compared with pre (p < 0.001), but fully recovered at 48 hours. Percent strength losses were higher for knee flexors (∼20%) compared with both hip adductors (∼12%; p = 0.005) and abductors (8–12%; p < 0.001), and for knee extensors compared with hip abductors (p = 0.013). Regardless of muscle group, strength losses were higher on the dominant than on the nondominant side (p = 0.010). Most perceptual responses were altered after the match (p < 0.001) and some items such as motivation to train and readiness to play remained unrecovered at 72 hours (p < 0.01). Soccer match-play induced a significant decline of knee and hip muscle strength in elite female players that was more marked for knee flexors than for hip muscles. This was accompanied by performance impairments and by altered perceptual responses that still persisted 72 hours after the match. These findings offer implications for the optimization of postmatch recovery strategies in elite female soccer players.
Absolute Agreement Between Subjective Hand Squeeze and Objective Handgrip Strength in Adults
Authors: Kieser Jacob , Langford Matthew , Stover Emily , Tomkinson Grant R. , Clark Brian C. , Cawthon Peggy M. , McGrath Ryan 
Published: January 2025

Abstract
Kieser, J, Langford, M, Stover, E, Tomkinson, GR, Clark, BC, Cawthon, PM, and McGrath, R. Absolute agreement between subjective hand squeeze and objective handgrip strength in adults. J Strength Cond Res XX(X): 000–000, 2024—Despite handgrip strength (HGS) being considered a convenient muscle strength assessment, HGS lacks routine measurement in sports medicine and healthcare settings because barriers such as time and lack of instrumentation may exist. Alternatives to circumvent these barriers should be sought. This study examined the absolute agreement of a subjective estimate of strength capacity on objectively measured HGS in adults aged 18–84 years. We also evaluated the test-retest reliability of an electronic handgrip dynamometer as a secondary purpose. There were 4 trained interviewers (i.e., assessors) who were assigned completely at random to subject laboratory visits occurring on 2 separate days. Trained interviewers carefully positioned their fingers into the hand of each subject before asking them to squeeze their fingers with maximal effort, and interviewers estimated each subject's HGS. An electronic handgrip dynamometer objectively measured HGS. Intraclass correlation coefficients (ICCs) were used for the analyses. The analytic sample included 100 subjects (age: 48.0 ± 20.2 years; 61% women). Poor agreement between mean objective HGS and averaged subjective hand squeeze was observed (ICC: 0.47; 95% confidence interval [CI]: 0.40–0.53). However, there was moderate agreement between dynamometer-derived maximal HGS and the most accurate HGS estimate (ICC: 0.75; CI: 0.65–0.86). An excellent test-retest reliability was found for mean (ICC: 0.97; CI: 0.95–0.98) and maximal HGS with the electronic dynamometer (ICC: 0.97; CI: 0.96–0.98). Trained interviewers performing subjective hand squeezes can approximate objective HGS with adequate accuracy, which could be useful when time and handgrip dynamometry access are lacking. Expanded interviewer training and testing may help with implementation.
The Role of Speed, Change of Direction, and Momentum by Position and Starting Status in Division 1 Collegiate Football Players
Authors: Mann J. Bryan , Cowley Nicholas , Weakley Jonathon 
Published: January 2025

Abstract
Mann, JB, Cowley, N, and Weakley, J. The role of speed, change of direction, and momentum by position and starting status in Division 1 collegiate football players. J Strength Cond Res XX(X): 000–000, 2024—This study (a) investigated differences between big, mid, and skill positions in sprint and change of direction times and momentum; (b) compared starting and nonstarting athletes; and (c) investigated whether thresholds can be developed to distinguish between starting and nonstarting Division 1 collegiate football athletes. Data from 496 collegiate football players who completed the 40-yard dash, pro-agility, and L drill were analyzed. Momentum was calculated using body mass and the average velocity during each test. To assess differences between positions and starters and nonstarters, data were analyzed using linear mixed models with effect size ±95% confidence intervals. Receiver operating characteristic (ROC) curves were generated to determine whether a cutoff value could be used to distinguish starters from nonstarters. Significant differences for both time and momentum were found between positional groups and starters and nonstarters for all tests in all positions. Starting skill position players tended to have greater differences in sprint or change of direction times and starting big players had greater sprint momentum. However, it should be noted that all ROC curves demonstrated relatively poor predictive value. Collectively, these findings demonstrate that bigger, faster players are preferentially selected in collegiate Division 1 football and there may be value in coaches collecting and assessing different outcome measures (e.g., sprint times and sprint momentum) depending on the positional group of the player. Finally, it should be acknowledged that setting binary thresholds to guide selection decisions is ill-advised and that speed, change of direction, and momentum are only one piece of the performance puzzle.
The Association Between Body Composition and Performance on Military Fitness Tests
Authors: Feeney Kimberly A. , Melton Bridget F. , Ryan Greg A. , Bland Helen W. , Butler Cody R. 
Published: January 2025

Abstract
Feeney, KA, Melton, BF, Ryan, GA, Bland, HW, and Butler, CR. The association between body composition and performance on military fitness tests. J Strength Cond Res XX(X): 000–000, 2024—Body composition and physical testing are important considerations for military personnel. However, limited research exists on the potential relationship between these 2 factors. The purpose of this retrospective cohort study was to examine the correlations between several body composition measures and performance on the components of 2 separate fitness tests in Air Force special warfare candidates. Within the cohort of candidates, 1,036 completed body composition testing, 1,002 completed a calisthenic-based fitness test, and 562 completed a fitness test designed to mimic occupational tasks. Analysis of Pearson correlations indicated that the calisthenic-based test weakly favored candidates with lower body mass and body fat levels on the lower end of that found within the cohort studied, while a higher score on the occupational-based test was linked to higher body mass index (BMI) and skeletal muscle mass (SMM) and lower absolute and relative body fat levels. Individual components of the occupational-based test favored different body composition relationships. A large negative association was seen between the farmer's carry time and SMM (r = −0.53) and a moderate negative association between farmer's carry time and body mass (r = −0.46), p < 0.01. The weight lifted during 3-RM deadlift demonstrated moderate positive associations with body mass (r = 0.49), BMI (r = 0.50), and SMM (r = 0.49), p < 0.01. These results suggest that individuals in physically active military roles should maximize SMM while managing body fat levels.