bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental investigation on mechanical property and hydration process of sintered sludge cement paste at different water‐binder ratios and curing ages
Authors: Zhang Jinrui , Li Chenjiang , Lv Tong , Hou Dongshuai , Hong Shuxian , Dong Biqin 
Published: September 2024

AbstractThis research investigated the mechanical property and hydration process of sintered sludge cement (SSC) paste, focusing on the effects of calcination temperature of sludge, sintered sludge ash (SSA) content, curing age, and water‐binder ratio using isothermal calorimetry, X‐ray diffraction, scanning electron microscopy, and multiple regression. Increasing calcination temperature enhanced the compressive strength of SSC paste due to the decomposition of minerals like Clinochlore and Muscovite. The compressive strength decreased by 2.4%–49.4% when the SSA content increased from 0% to 50%, with more significant declines noted at higher water‐binder ratios. Notably, the 7‐day compressive strength of the cement paste with 10% SSA showed little change, and the 28‐day compressive strength actually increased at a water‐binder ratio of 0.4. SSA slowed down the hydration rate of cement and induced more Monocarbonate to form in the early stage. A multiple linear regression model was developed to predict SSC compressive strength with a 12% error margin.
Linear electronic relationship of surface functionalized fly ash and substituted phenols on bactericidal activity with the computational study
Authors: Sharma Ankit , Rani Ashu , Sharma Shobhana , Malav Kunjbihari , Balichwal Tushar , Paridwal Yogesh kumar , Sharma Shikha , Sharma Sushil Kumar 
Published: September 2024

AbstractFly ash is a solid waste by‐product obtained from coal‐burning power plants. It is a silico‐aluminate material with an admixture of several metal oxides, which finds an application in geopolymers, zeolites, cement, catalysts, etc. The present article aims to assess the antibacterial activity of fly ash and substituted phenols against Escherichia coli and Staphylococcus in broth and agar cultures, respectively. High‐Temperature Activated Fly Ash (TAFA) shows significant bactericidal activity against gram positive (+) and negative (−) bacteria as compared to Mechanically Activated Fly Ash (MAFA) and Waste Polyethylene Coated Fly Ash (WPCFA), which attribute to the augmentation of mullite phase (lacking charge balancing cation) of fly ash at high temperature. These modified fly ash (TAFA, MAFA, and WPCFA) were characterized by Fourier Transform Infra Red (FT‐IR), Scanning Electron Microscope (SEM), and X‐Ray Diffraction (XRD) techniques. The substituted phenols further explored the significance of charge on the antibacterial properties. The para‐substituted phenols with groups having (+) mesomeric effect M > (−) I Inductive effect and ortho substituents with (+) I effect shows a linear electronic relationship with antibacterial properties with gram (+) bacteria, owing to charge augmentation at oxygen atom of phenoxide ion due to electronic effects. Further, the bactericidal efficacy was less significant on gram (−) bacteria. Small energy gap (Egap) values corroborated the chemical reactivity of phenols and substituted phenols. The antimicrobial potential of phenol/substituted phenols can be correlated with global descriptors. Molecular Electrostatic Potential (MEP) maps obtained through Density Functional Theory (DFT) indicate the nucleophilic centers in the molecular structure.
Using autonomous recording units to identify and monitor western yellow‐billed cuckoo habitat
Authors: Beauregard Nicholas D. , Theimer Tad C. , Sferra Susan J. , Pasch Bret 
Published: September 2024

AbstractAutonomous recording units (ARUs) paired with signal classification software can be used to detect species‐specific calls, making them useful for evaluating patterns in avian occurrence and activity. However, classification of target signals is not always reliable and may be especially challenging for species that vocalize infrequently. We assessed the use of ARUs to identify and monitor habitat for a cryptic and federally threatened distinct population segment, the western yellow‐billed cuckoo (Coccyzus americanus) in mountainous xeroriparian drainages. Using Kaleidoscope Pro, we developed a call‐classifier and processed acoustic data collected in sites also surveyed using traditional human‐observer methods, applying the same spatial and temporal detection criteria to estimate breeding territories for each method. The classifier detected a total of 4,061 true positive calls at 4 sites, had an overall precision score of 0.07, recall score of 0.09, and F‐score (beta = 1) of 0.08, indicating high false positive and false negative classification rates. Our results were, however, consistent with other ARU studies of rare and cryptic species and ARUs estimated occupancy as effectively as human surveys with as little as 2 hours of daily recording. Total detections varied among sites, likely due to differences in cuckoo population densities and the interaction between topography and ARU detection space. Our results suggest that despite performance shortcomings of call‐classifiers, ARUs can be effective for monitoring cuckoos, with potential for providing higher resolution temporal and spatial information on activity and habitat use and may be particularly effective in remote locations where cuckoos often occur.
Methodenteil
Authors: Tanner Iris 
Published: September 2024

ZusammenfassungFür die vorliegende Arbeit stand der Datensatz der schweizerisch-deutschen Videostudie (DECH-Studie) zur Verfügung (vgl. u.a Klieme, Pauli & Reusser, 2006; Reusser, Pauli 2013). Neben Videoaufnahmen zu drei aufeinanderfolgenden Lektionen zur Einführung des Satzes von Pythagoras umfasst die Studie ebenfalls Videoaufnahmen zu zwei Lektionen zu mathematischen Textaufgaben im Klassensetting und in zweierlei Tutoring-Settings. Die 1:4-Tutoring-Settings sind der für die vorliegende Arbeit verwendete Datensatz. Darin wird in einer lehrpersonenbegleiteten Gruppenarbeit auf der Sekundarstufe I von vier Lernenden eine standardisierte Textaufgabe mehr oder minder gemeinsam gelöst. Im vorliegenden Kapitel werden nach der Aufgabenanalyse (vgl. Kapitel 6.2) die deskriptiven (vgl. Kapitel 6.4) und die prozessbezogenen mikrostrukturiellen (vgl. Kapitel 6.5) Analyseinstrumente dargestellt. Um die Vielschichtigkeit des interaktiven Geschehens in seinem Ablauf darstellen zu können, sind detaillierte Fallanalysen von ausgewählten Lehr-Lern-Dialogen erstellt worden. Die Analysekriterien und deren Herleitung sind im letzten Abschnitt dieses Kapitel dargestellt (vgl. Kapitel 6.6).
Quasiconvex Functionals of (p, q)-Growth and the Partial Regularity of Relaxed Minimizers
Authors: Gmeineder Franz , Kristensen Jan 
Published: September 2024

AbstractWe establish $$\textrm{C}^{\infty }$$

C
∞

-partial regularity results for relaxed minimizers of strongly quasiconvex functionals $$\begin{aligned} \mathscr {F}[u;\Omega ]:=\int _{\Omega }F(\nabla u)\textrm{d}x,\qquad u:\Omega \rightarrow \mathbb {R}^{N}, \end{aligned}$$

F

[
u
;
Ω
]

:
=

∫
Ω

F

(
∇
u
)

d
x
,

u
:
Ω
→

R

N

,

subject to a q-growth condition $$|F(z)|\leqq c(1+|z|^{q})$$

|
F

(
z
)

|
≦
c
(
1
+
|
z

|
q

)

, $$z\in \mathbb {R}^{N\times n}$$

z
∈

R

N
×
n

, and natural p-mean coercivity conditions on $$F\in \textrm{C}^{\infty }(\mathbb {R}^{N\times n})$$

F
∈

C
∞

(

R

N
×
n

)

for the basically optimal exponent range $$1\leqq p\leqq q<\min \{\frac{np}{n-1},p+1\}$$

1
≦
p
≦
q
<
min
{

np

n
-
1

,
p
+
1
}

. With the p-mean coercivity condition being stated in terms of a strong quasiconvexity condition on F, our results include pointwise (p, q)-growth conditions as special cases. Moreover, we directly allow for signed integrands which is natural in view of coercivity considerations and hence the direct method, but is novel in the study of relaxed problems. In the particular case of classical pointwise (p, q)-growth conditions, our results extend the previously known exponent range from Schmidt’s foundational work (Schmidt in Arch Ration Mech Anal 193:311–337, 2009) for non-negative integrands to the maximal range for which relaxations are meaningful, moreover allowing for $$p=1$$

p
=
1

. We also emphasize that our results apply to the canonical class of signed integrands and do not rely in any way on measure representations à la Fonseca and Malý (Ann Inst Henri Poincaré Anal Non Linéaire 14:309–338, 1997).
A retrospective study of arthroscopic treatment for patients with bordline developmental dysplasia of the hip
Authors: Gou Yu , Zhang Zi , Meng Binyang , Cao Jiangang , Zhu Jiawang , Li Hongzhou , Zhao Qian 
Published: September 2024

Abstract
Purpose
Hip arthroscopy is effective in treating bordline developmental dysplasia of the hip (BDDH), but there are only a few clinical reports in China, and its postoperative failure rate is still a problem that cannot be ignored. The aim of this study was to analyze the clinical effect of hip arthroscopy in BDDH treatment in China and to explore the risk factors influencing the efficacy of hip arthroscopy in BDDH treatment.

Methods
All of 22 cases of BDDH treated with arthroscopy in our hospital from November March 2017 to February 2022 were analyzed retrospectively, including ten males and 12 females, with an average age of 34.7 ± 9.5 years (19–53 years). All patients underwent arthroscopic treatment with acetabular plasty, labral repair, femoral osteoplasty, and capsular plication. Visual Analogue Scale (VAS), modified Harris Hip Scores (mHHS), Hip Outcome Score—activities of Daily Living (HOS-ADL) and International Hip Outcome Tool-12 (iHOT-12) were measured before operation and at the follow-up, and statistical analysis was performed. The Minimum clinically significant difference (MCID) and Patient Acceptable Symptom State (PASS) were also obtained.

Results
22 patients were followed up, and the follow-up time was ≥ one year, with an average of 21.4 ± 8.2 months. The VAS score decreased from 5.27 ± 1.58 points before surgery to 1.96 ± 0.92 points at the follow-up, and the difference was statistically significant (t = 9.05,P < 0.001). The mHHS score increased from 64.84 ± 13.58 points before surgery to 90.4 ± 10.11 points at the follow-up, and the difference was statistically significant (t=-7.07, P < 0.001). The HOS-ADL score increased from 68.92 ± 11.76 points before surgery to 88.91 ± 9.51 points at the follow-up, and the difference was statistically significant (t=-8.15,P < 0.001). The iHOT-12 score increased from 49.32 ± 12.01 points before surgery to 79.61 ± 15.89 points at the follow-up, and the difference was statistically significant (t=-7.66,P < 0.001). The MCID (mHHS) and MCID (HOS-ADL) were 81.8% and 77.3% respectively, and the PASS (mHHS) and PASS (HOS-ADL) were 86.4% and 72.7% respectively at the follow-up.

Conclusion
Hip arthroscopy can achieve good short-term outcomes in the treatment of BDDH.

Level of evidence
IV Therapeutic Study.
Shape matters: unsupervised exploration of IDH-wildtype glioma imaging survival predictors
Authors: Foltyn-Dumitru Martha , Mahmutoglu Mustafa Ahmed , Brugnara Gianluca , Kessler Tobias , Sahm Felix , Wick Wolfgang , Heiland Sabine , Bendszus Martin , Vollmuth Philipp , Schell Marianne 
Published: September 2024

Abstract

Objectives
This study examines clustering based on shape radiomic features and tumor volume to identify IDH-wildtype glioma phenotypes and assess their impact on overall survival (OS).

Materials and methods
This retrospective study included 436 consecutive patients diagnosed with IDH-wt glioma who underwent preoperative MR imaging. Alongside the total tumor volume, nine distinct shape radiomic features were extracted using the PyRadiomics framework. Different imaging phenotypes were identified using partition around medoids (PAM) clustering on the training dataset (348/436). The prognostic efficacy of these phenotypes in predicting OS was evaluated on the test dataset (88/436). External validation was performed using the public UCSF glioma dataset (n = 397). A decision-tree algorithm was employed to determine the relevance of features associated with cluster affiliation.

Results
PAM clustering identified two clusters in the training dataset: Cluster 1 (n = 233) had a higher proportion of patients with higher sphericity and elongation, while Cluster 2 (n = 115) had a higher proportion of patients with higher maximum 3D diameter, surface area, axis lengths, and tumor volume (p < 0.001 for each). OS differed significantly between clusters: Cluster 1 showed a median OS of 23.8 compared to 11.4 months of Cluster 2 in the holdout test dataset (p = 0.002). Multivariate Cox regression showed improved performance with cluster affiliation over clinical data alone (C index 0.67 vs 0.59, p = 0.003). Cluster-based models outperformed the models with tumor volume alone (evidence ratio: 5.16–5.37).

Conclusion
Data-driven clustering reveals imaging phenotypes, highlighting the improved prognostic power of combining shape-radiomics with tumor volume, thereby outperforming predictions based on tumor volume alone in high-grade glioma survival outcomes.

Clinical relevance statement
Shape-radiomics and volume-based cluster analyses of preoperative MRI scans can reveal imaging phenotypes that improve the prediction of OS in patients with IDH-wild type gliomas, outperforming currently known models based on tumor size alone or clinical parameters.

Key Points

Shape radiomics and tumor volume clustering in IDH-wildtype gliomas are investigated for enhanced prognostic accuracy.

Two distinct phenotypic clusters were identified with different median OSs.

Integrating shape radiomics and volume-based clustering enhances OS prediction in IDH-wildtype glioma patients.
Physiological Age of Stock Plants Determines Phytohormonal Changes in Leafy Cuttings of Prunus subhirtella 'Autumnalis'
Authors: Kunc Petra , Medič Aljaž , Hudina Metka , Veberič Robert , Osterc Gregor 
Published: September 2024

Abstract
The aim of this study was to investigate adventitious root formation in cuttings obtained from physiologically different old stock material. The ornamental cherry Prunus subhirtella ´Autumnalis´ was used for the experiment. We examined three stock plants, namely a physiologically mature stock plant (about 60 years old) and physiologically juvenile plants (21 years old), which were previously propagated by cuttings, semi-mature stock material and in vitro juvenile stock material. We also investigated the role of phytohormones in the induction phase of adventitious root (AR) formation depending on the physiological age of the stock plant and the time after cutting. High performance liquid chromatography coupled with mass spectrometry (HPLC–MS/MS) was used to identify and quantify the phytohormones. The difference in rooting and quality of the developed AR is observed between semi-mature stock and mature stock material. Cuttings from semi-mature plants rooted in 95.00% of cases, while cuttings from mature stock plants only rooted in 68.33%. The high concentration of strigolactones and jasmonic acid (JA) immediately after severance had an inhibitory effect on the development of adventitious roots, especially in cuttings of mature origin. The development of AR is positively influenced by the increase in indole-3-acetic acid (IAA) 4 h after cutting from the stock plant. Our results show that the formation of adventitious root formation depends on the concentration and ratio between different phytohormones.
Multiphase distribution in partly saturated hierarchical nonwoven fibre networks under applied load using X-ray computed tomography
Authors: Wegele Patrick , Rosén Tomas , Söderberg Daniel 
Published: September 2024

AbstractIn many industrial applications, nonwoven fibre networks are facilitated to operate under partly saturated conditions, allowing for filtration, liquid absorption and liquid transport. Resolving the governing liquid distribution in loaded polyamide-6 (PA6) fibre networks using X-ray computed micro-tomography is a challenge due to the similar X-ray attenuation coefficients of water and PA6 and limitations in using background subtraction techniques if the network is deformed, which will be the case if subjected to compression. In this work, we developed a method using a potassium iodide solution in water to enhance the liquid’s attenuation coefficient without modifying the water’s rheological properties. Therefore, we studied the evolving liquid distribution in loaded and partly saturated PA6 fibre networks on the microscale. Increasing the external load applied to the network, we observed an exponential decrease in air content while the liquid content was constant, increasing the overall saturation with increasing network strain. Furthermore, the microstructural properties created by the punch-needle process in the manufacturing of the network significantly influenced the out-of-plane liquid distribution. The method has been proven helpful in understanding the results of adaptions in both the fibre network design and manufacturing process, allowing for investigating the resulting liquid distribution on a microscale.
Correction potential and outcome of various surgical procedures for hallux valgus surgery: a living systematic review and meta-analysis
Authors: Ettinger S. , Spindler F. T. , Savli M. ,   D.A.F. Scientific Committee, Stukenborg-Colsman Christina , Ochman Sabine , Rammelt Stefan , Polzer Hans , Gutteck Natalia , Harrasser Norbert , Plaaß Christian , Baumbach Sebastian F. 
Published: September 2024

Abstract
Introduction
More than 100 surgical techniques are described for hallux valgus (HV) correction, but the most appropriate technique remains debatable. The aim of this study was to develop and conduct a “living systematic review” for the outcome of surgically treated HV.

Materials and methods
The “living systematic review” was conducted per the PRISMA-P and PICOS guidelines and is the basis for the German AWMF S2e guideline “Hallux valgus” (033-018). Four common databases and the grey-literature were searched. Eligible were studies on adult patients comparing either two different primary surgical interventions or the same primary surgical intervention for different hallux valgus severities. The main outcome parameters were the osseous correction potential and the patient rated outcome.

Results
Out of 3022 studies, 46 studies (100 arms) were included. The meta-analysis included 31 studies (53 arms). The IMA (1933 procedures) improved on average by 7.3°, without significant group differences. The HVA (1883 procedures) improved on average by 18.9°, with significantly better results for third generation MIS (21.2°). The AOFAS (1338 procedures) improved on average by 33.8 points without significant group differences. The meta-regression revealed constant AOFAS scores over time. 69%/39% of the correction potential for the IMA/HVA could be explained by the preoperative values and 82% of the AOFAS improvement by the preoperative AOFAS scores.

Conclusion
Open and minimally invasive techniques are powerful tools to correct hallux valgus deformity. Third generation MIS procedures revealed a possible superiority for the correction of the HVA. The AOFAS improvement appeared to be constant over time.

Level of evidence
Level I; living systematic review and meta-analysis of prospective comparative studies (level II) and randomized controlled trials (level I).
Effects of minute oscillation stretching training on muscle and tendon stiffness and walking capability in people with type 2 diabetes
Authors: Magris Riccardo , Monte Andrea , Nardello Francesca , Trinchi Michele , Vigolo Nicolò , Negri Carlo , Moghetti Paolo , Zamparo Paola 
Published: September 2024

Abstract

Aim
we investigated the effects of a 10 week training program (i.e., minute oscillatory stretching; MOS) on the mechanical responses and walking capability in people with type 2 diabetes (T2D).

Methods
seventeen T2D patients performed maximum voluntary contractions of the plantar flexor muscles during which Achilles tendon stiffness (kT) and muscle–tendon stiffness (kM) were evaluated at different percentages of the maximum voluntary force (MVC). In addition, each participant was requested to walk at different walking speeds (i.e. 2, 3, 4, 5, and 6 kmh−1) while their net energy cost of walking (Cnet), cumulative EMG activity per distance travelled (CMAPD) and kinematic parameters (step length, step frequency, the ankle/knee range of motion) were evaluated.

Results
maximum tendon elongation increased after MOS training, and kT significantly decreased (between 0 and 20% of MVC). No differences were observed for muscle elongation or kM after training. Cnet decreased after training (at the slowest tested speeds) while no changes in CMAPD were observed. Step length and ankle ROM during walking increased after training at the slowest tested speeds, while step frequency decreased; no significant effects were observed for knee ROM.

Conclusion
these results indicate the effectiveness of 10 weeks of MOS training in reducing tendon stiffness and the energy cost during walking in people with T2D. This training protocol requires no specific instrumentation, can be easily performed at home, and has a high adherence (92 ± 9%). It could, thus, be useful to mitigate mechanical tendon deterioration and improve physical behaviour in this population.
Extra-abdominal and intra-abdominal FET::CREM fusion mesenchymal neoplasms: comparative clinicopathological study of 9 new cases further supporting a distinct potentially aggressive sarcoma and report of novel sites
Authors: Agaimy Abbas , Blakely Morgan , Breimer Gerben E. , Hölsken Annett , Koppes Sjors A. , Meidenbauer Norbert , Rijken Johannes A. , Schad Arno , Simon Adrian G. , Stoehr Robert , Bishop Justin A. , Din Nasir Ud 
Published: September 2024

AbstractWith the wide use of RNA sequencing technologies, the family of FET::CREB fusion mesenchymal neoplasms has expanded rapidly to include potentially aggressive neoplasms, not fitting any well established WHO entity. Recently, a group of intra-abdominal FET(EWSR1/FUS)::CREB(CREM/ATF1) fused unclassified neoplasms has been reported followed by recent recognition of an analogous extra-abdominal category of unclassified neoplasms carrying EWSR1::ATF1 fusions. We describe 9 additional tumors (5 extra-abdominal and 4 abdominal) carrying an EWSR1::CREM (n = 8) and FUS::CREM (n = 1) fusion. Patients were 7 females and 2 males aged 10 to 75 years (median, 34). Extra-abdominal tumors originated in the head and neck (2 sinonasal, 1 orbital) and soft tissues (1 gluteal, 1 inguinal). Abdominal tumors involved stomach (2), mesentery (1), and kidney (1). Tumor size ranged from 3.5 to 11 cm (median, 6). Treatment was radical surgery with (5) or without (2) neo/adjuvant radio/chemotherapy. Extended follow-up of 5 patients (21–52 months; median, 24) showed an aggressive course in two (40%); one died of disseminated metastases 52 months after several intensified chemotherapy regimens, and one was alive with progressive abdominal disease at 21 months. The immunophenotype of the two subcohorts was significantly overlapping with variable expression of EMA (7 of 8), keratin AE1/AE3 (5 of 9), CD99 (4 of 7), MUC4 (2 of 8), ALK (3 of 8), synaptophysin (3 of 9), chromogranin (1 of 8), CD34 (3 of 6), CD30 (1 of 6), PAX8 (1 of 7), and inhibin (1 of 7), but no reactivity with desmin (0 of 8), S100 (0 of 8), and SOX10 (0 of 8). This series further solidifies the notion that FET::CREB fusions are not limited to the triad of angiomatoid fibrous histiocytoma, clear cell sarcoma, and malignant gastrointestinal neuroectodermal tumor, but characterize an emerging family of potentially aggressive neoplasms occurring at both intra- and extra-abdominal sites. These tumors underscore the promiscuity of the FET::CREB fusions and highlight the pivotal role of phenotype-oriented classification of these neoplasms that share the same genotype, still featuring significant biological and behavioral distinctness.