bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancing osteoblast proliferation and bone regeneration by poly (amino acid)/selenium-doped hydroxyapatite
Authors: Wei Xiaobo , Zhang Ziyue , Wang Lei , Yan Lin , Yan Yonggang , Wang Cheng , Peng Haitao , Fan Xiaoxia 
Published: March 2024

Abstract
Among various biomaterials employed for bone repair, composites with good biocompatibility and osteogenic ability had received increasing attention from biomedical applications. In this study, we doped selenium (Se) into hydroxyapatite (Se-HA) by the precipitation method, and prepared different amounts of Se-HA-loaded poly (amino acid)/Se-HA (PAA/Se-HA) composites (0, 10 wt%, 20 wt%, 30 wt%) by in-situ melting polycondensation. The physical and chemical properties of PAA/Se-HA composites were characterized by x-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and their mechanical properties. XRD and FT-IR results showed that PAA/Se-HA composites contained characteristic peaks of PAA and Se-HA with amide linkage and HA structures. DSC and TGA results specified the PAA/Se-HA30 composite crystallization, melting, and maximum weight loss temperatures at 203.33 °C, 162.54 °C, and 468.92 °C, respectively, which implied good thermal stability. SEM results showed that Se-HA was uniformly dispersed in PAA. The mechanical properties of PAA/Se-HA30 composites included bending, compressive, and yield strengths at 83.07 ± 0.57, 106.56 ± 0.46, and 99.17 ± 1.11 MPa, respectively. The cellular responses of PAA/Se-HA composites in vitro were studied using bone marrow mesenchymal stem cells (BMSCs) by cell counting kit-8 assay, and results showed that PAA/Se-HA30 composites significantly promoted the proliferation of BMSCs at the concentration of 2 mg ml−1. The alkaline phosphatase activity (ALP) and alizarin red staining results showed that the introduction of Se-HA into PAA enhanced ALP activity and formation of calcium nodule. Western blotting and Real-time polymerase chain reaction results showed that the introduction of Se-HA into PAA could promoted the expression of osteogenic-related proteins and mRNA (integrin-binding sialoprotein, osteopontin, runt-related transcription factor 2 and Osterix) in BMSCs. A muscle defect at the back and a bone defect at the femoral condyle of New Zealand white rabbits were introduced for evaluating the enhancement of bone regeneration of PAA and PAA/Se-HA30 composites. The implantation of muscle tissue revealed good biocompatibility of PAA and PAA/Se-HA30 composites. The implantation of bone defect showed that PAA/Se-HA30 composites enhanced bone formation at the defect site (8 weeks), exhibiting good bone conductivity. Therefore, the PAA-based composite was a promising candidate material for bone tissue regeneration.
Exploring the bounds of methane catalysis in the context of atmospheric methane removal
Authors: Tsopelakou Aliki Marina , Stallard Joe , Archibald Alexander T , Fitzgerald Shaun , Boies Adam M 
Published: March 2024

Abstract
Methane, a potent greenhouse gas, is a significant contributor to global warming, with future increases in its abundance potentially leading to an increase of more than 1∘C by 2050 beyond other greenhouse gases if left unaddressed. To remain within the crucial target of limiting global warming to 1.5 ∘C, it is imperative to evaluate the potential of methane removal techniques. This study presents a scoping analysis of different catalytic technologies (thermal, photochemical and electrochemical) and materials to evaluate potential limitations and energy requirements. An analysis of mass transport and reaction rates is conducted for atmospheric methane conversion system configurations. For the vast majority of catalytic technologies, the reaction rates limit the conversion which motivates future efforts for catalyst development. An analysis of energy requirements for atmospheric methane conversion shows minimum energy configurations for various catalytic technologies within classic tube or parallel plate architectures that have analogs to ventilation and industrial fins. Methane concentrations ranging from 2 ppm (ambient) to 1000 ppm (sources, such as wetlands, fossil-fuel extraction sites, landfills etc) are examined. The study finds that electrocatalysis offers the most energy efficient approach (∼0.2 GJ tonne−1 CO2e) for new installations in turbulent ducts, with a total energy intensity

<

1 GJ tonne−1 CO2e. Photocatalytic methane removal catalysts are moderately more energy intensive (∼2 GJ tonne−1 CO2e), but could derive much of their energy input from ‘free’ solar energy sources. Thermal systems are shown to be excessively energy intensive (

>

100 GJ tonne−1), while combining photovoltaics with electrochemical catalysts (∼1 GJ tonne−1 CO2e) have comparable energy intensity to photocatalytic methane removal catalysts.
Random-matrix model for thermalization
Authors: Weidenmüller Hans A 
Published: March 2024

Abstract
We show that for a system governed by a random-matrix Hamiltonian (a member of the time-reversal invariant Gaussian Orthogonal Ensemble (GOE) of random matrices of dimension N), all functions

Tr
(
A
ρ
(
t
)
)

in the ensemble thermalize: For

N
→
∞

every such function tends to the value

Tr
(
A

ρ
eq

(
∞
)
)
+
Tr
(
A
ρ
(
0
)
)

g
2

(
t
)

. Here

ρ
(
t
)

is the time-dependent density matrix of the system, A is a Hermitean operator standing for an observable, and

ρ
eq

(
∞
)

is the equilibrium density matrix at infinite temperature. The oscillatory function g(t) is the Fourier transform of the average GOE level density and falls off as

1

/

|

t

|

3

/

2

for large t. With

g
(
t
)
=
g
(
−
t
)

, thermalization is symmetric in time. Analogous results, including the symmetry in time of thermalization, are derived for the time-reversal non-invariant Gaussian Unitary Ensemble of random matrices. Comparison with the ‘eigenstate thermalization hypothesis’ of (Srednicki 1999 J. Phys. A: Math. Gen.
32 1163) shows overall agreement but raises significant questions.
Thermalization of closed chaotic many-body quantum systems
Authors: Weidenmüller Hans A 
Published: March 2024

Abstract
We investigate thermalization of a closed chaotic many-body quantum system by combining the Hartree–Fock approach with the Bohigas–Giannoni–Schmit conjecture. The conjecture implies that locally, the residual interaction causes the statistics of eigenvalues and eigenfunctions of the full Hamiltonian to agree with random-matrix predictions. The agreement is confined to an interval Δ (the correlation width). The results are used to calculate

Tr

(
A
ρ
(
t
)
)

. Here

ρ
(
t
)

is the time-dependent density matrix of the system, and A represents an observable. In the semiclassical regime, the average

⟨

Tr

(
A
ρ
(
t
)
)
⟩

decays on the time scale

ℏ

/

Δ

toward an asymptotic value. If the energy spread of the system is of order Δ, that value is given by

Tr

(
A

ρ

eq

)

where

ρ

eq

is the density matrix of statistical equilibrium. The correlation width Δ is the central parameter of our approach. We argue that Δ occurs generically in chaotic quantum systems and plays the same central role.
Digital noise spectroscopy with a quantum sensor
Authors: Wang (王国庆) Guoqing , Zhu Yuan , Li Boning , Li Changhao , Viola Lorenza , Cooper Alexandre , Cappellaro Paola 
Published: March 2024

Abstract
We introduce and experimentally demonstrate a quantum sensing protocol to sample and reconstruct the autocorrelation of a noise process using a single-qubit sensor under digital control modulation. This Walsh noise spectroscopy method exploits simple sequences of spin-flip pulses to generate a complete basis of digital filters that directly sample the power spectrum of the target noise in the sequency domain, from which the autocorrelation function in the time domain, as well as the power spectrum in the frequency domain, can be reconstructed using linear transformations. Our method, which can also be seen as an implementation of frame-based noise spectroscopy, solves the fundamental difficulty in sampling continuous functions with digital filters by introducing a transformation that relates the arithmetic and logical time domains. In comparison to standard, frequency-based dynamical-decoupling noise spectroscopy protocols, the accuracy of our method is only limited by sampling and discretization in the time domain and can be easily improved, even under limited evolution time due to decoherence and hardware limitations. Finally, we experimentally reconstruct the autocorrelation function of the effective magnetic field produced by the nuclear-spin bath on the electronic spin of a single nitrogen-vacancy center in diamond, discuss practical limitations of the method, and avenues to further improve the reconstruction accuracy.
A review on buckling of the laminated composite panel under in-plane load
Authors: Kumar Shashi , Kant Lakshmi , Poddar Manoj Kumar , Yadav Chandra Bhushan Kumar , Kumar Sumit 
Published: March 2024

Abstract
The review paper deals with a literature review on buckling analysis by different methods of laminated plates with different types of stiffeners which has been conducted in recent years. Analytical studies, experimental studies, finite element analysis, and other computational methods have been implemented by researchers on the stiffened panels under compression and shear for determination of the buckling behavior of the panel with I-type, blade-type, T-type, and hat-stiffeners. Some literature has been found on the panel with the influence of variation of the stiffener depth for the determination of buckling capacity. Very few literatures, non-linear finite element (FE) have been implemented for the determination of the effect of debonding damage between plate-stiffener of the panel but have not been reported parametric data about the effect of cohesive parameters of plate-stiffener and delamination of plies of the composites stiffened panel for post-buckling analysis. This paper also provides a literature survey based on the buckling performance of the plates with the application of different shapes of stiffeners.
Comparative assessment of fault detection methods in transmission line during power swing: analyzing single and hybrid networks for the southern Kerala grid
Authors: K Sabeena Beevi , Ramesh Adith , Das Gokul , Girish Sanjay P , Siano Pierluigi 
Published: March 2024

Abstract
The blocking function of power oscillation is a highly effective feature found in distance relays. Its purpose is to prevent unintentional tripping of transmission lines. It is crucial to accurately differentiate between faults and power oscillations to minimise the occurrence of widespread power outages and monetary losses. Therefore, the detection and classification of faults arising from power swings are critical challenges in ensuring the smooth operation and overall health of transmission lines, particularly in extra-high-voltage (EHV) and ultra-high-voltage (UHV) power systems. Modern methods rely on machine learning methods which are in their infancy. The paper proposes to identify various fault conditions in transmission lines during power swing by using a hybrid Neural Network architecture. In this research, different designs such as 2-D convolution neural network (2D-CNN), 1-D convolution neural network (1D-CNN), long short-term memory (LSTM), and CNN-LSTM hybrid networks are investigated to understand the effect of various deep learning approaches. Along with the southern Kerala grid, the standard 9-bus system is selected as a test case to examine various fault circumstances of the system during power swing. Multiple tests were conducted to determine the optimal deep learning architecture, including model parameters and configurations, for accurate fault detection. For the 9 bus system, the 1D CNN network performs better with an accuracy of 98.70%, and for the Kerala grid, both networks are competitive, but the CNN-LSTM Hybrid method slightly outperforms the 1D CNN with an accuracy of 92.40%.
Biobehavioral Research in Dentistry: Some Directions for the 1990s
Authors: McGlynn F. Dudley , Gale Elliot N. , Glaros Alan G. , LeResche Linda , Massoth Donna L. , Weiffenbach James M. 
Published: March 2024

Abstract
Literatures related to five promising areas of biobehavioral research in dentistry are overviewed: etiology and treatment of temporomandibular disorders and of bruxism, assessment of facial and other pain with measures of facial expression, the connection between stress and periodontal disease, and taste sensory function and dysfunction. In each case, the current status of the literature is described and some directions for continued research are offered. The biopsychosocial perspective on illness and health is favored as an organizing framework for these and similar efforts.
Breaking the Worldwide Cycle of Pain, Fear, and Avoidance: Uncovering Risk Factors and Promoting Prevention for Children
Authors: Weinstein Philip 
Published: March 2024

Abstract
Recent research indicates that dental fear may be a universal barrier to oral health and that culture determines the mode of expression of dental fear. This fear of dental treatment appears to be a major problem in studies of the Japanese with Japanese samples reporting four times as much pain at their last appointment as the American sample. It appears that a “cycle of fear” may exist for developing nations and for our own emergency-based dental care delivery systems. Pathology unchecked by preventive services leads to painful dental treatment; this results in fear and subsequent avoidance. Knowledge of etiologic factors is incomplete; however a study of conditioning, expectation and latent inhibition appears promising. Particular attention to developmental factors is needed. A primary prevention program with children that includes creation of a safe environment, careful positive exposure and choice of non-invasive procedures is recommended. Secondary and tertiary preventive procedures for fearful children are also discussed.
Weight Management and Hypertension
Authors: Jeffery Robert W. 
Published: March 2024

Abstract
A convergence of epidemiologic, laboratory, and clinical research clearly implicates obesity in the etiology of essential hypertension. Cross-culturally, the prevalence of hypertension varies directly with the prevalence of obesity; cross-sectionally, body weight is positively associated with blood pressure; and longitudinally, both absolute weight and weight gain predict future development of hypertension. Weight loss trials, although fewer in number, suggest that weight loss is the single most effective nonpharmacologic approach to the management and prevention of hypertension. Treatment of obesity remains difficult. Current intervention approaches that combine diet, exercise, and multicomponent behavioral strategies can reliably produce clinically significant weight loss in most obese clients. Long-term maintenance, however, has generally been disappointing, which reduces the potential of weight control counseling in the practical management of hypertension. The implications of these findings for the treatment of hypertension as well as future research needs are discussed.
Compliance With Antihypertensive Regimen: A Review of the Research in the 1980s
Authors: Dunbar-Jacob Jacqueline , Dwyer Kathleen , Dunning E. Jean 
Published: March 2024

Abstract
Over the past two decades, the health care community and the National Institutes of Health have focused attention toward the control of hypertension. Although considerable research has been undertaken which contributes to our understanding of compliance, little has been achieved in improved self-care by patients. This review highlights the past decade of published research related to compliance with hypertension regimens. The focus of the review is on the extent of the problem of noncompliance, setting differences in compliance rates, measurement influences on compliance rates, research on compliance measurement methods, medication compliance, and intervention strategies to improve patient compliance. At the close of the 1970s, it was noted that determinants of compliance were complex and poorly understood. Continuing research efforts on the extent of noncompliance suggest that improvements have not been made in the 1980s; however, the research does suggest directions for a better understanding of compliance and its modifications. The research suggests that differences exist in compliance rates between treatment settings, and that compliance can be enhanced by support networks. Studies of noncompliance, however, have generally not yielded new insights. The research suggests that the inclusion of cognitive constructions of illness may strengthen the effect of behavioral interventions. Research has also progressed on the validation of measures of compliance. Continued research emphasizing the development of measures with enhanced reliability and accuracy would advance the field. The research of the past decade suggests there are a number of promising avenues yet to be explored.
Does Social Support Aid in Weight Loss and Smoking Interventions? Reply from a Family Systems Perspective
Authors: Lassner Jason B. 
Published: March 2024

Abstract
This article suggests that the inconsistent ability of social support interventions to enhance treatment outcomes in weight loss and smoking cessation studies is a result of inadequate theoretical conceptualization and operational definition of social support. Family systems theory is proposed as a theoretical framework which capitalizes on the salience of patient-partner interactions in producing long-term behavior change. A model is presented which outlines how this alternative conceptualization of social support would alter previous interventions. Preliminary evidence in favor of the proposed model is presented in the form of retrospective analysis of previous studies. Based on a desire to resolve the inconsistency of previous research, a call is made for the consideration of systems theory in future social support intervention studies.
Women and Aerobic Exercise: Directions for Research Development
Authors: Lee Christina 
Published: March 2024

Abstract
Women in Western societies participate in exercise to a much lesser extent than men of similar educational level and social class. This difference tends to increase with age. This article reviews studies examining the physiological and psychological effects of exercise programs, and concludes that middle-aged and older women have the potential to benefit from exercise to much the same degree as men. However, it also identifies a number of limitations to the research reviewed and suggests the need for more systematic programs of investigation. A clearer understanding of the types of exercise which are most appropriate and beneficial to women of various age groups and initial fitness levels would provide a factual basis for the promotion of safe and healthy exercise for women at all stages of the life cycle.
The Importance of Skeletal Muscle Strength to Physical Function in Older Adults
Authors: Buchner David M. , de Lateur Barbara J. 
Published: March 2024

Abstract
It is intuitive that strength is a determinant of physical function, and hence, logical to ask whether age-related decline in strength is an important cause of functional impairment in older adults. Interestingly, the few studies which address this question report inconsistent results and often fail to find a strong relationship between strength and function. It appears that several theoretical issues about the relationship between strength and function are not widely appreciated: (a) the relationship between strength and function is specific for physical function; (b) relative strength is more closely related to function than absolute strength; (c) the relationship should be curvilinear and involves a threshold; and (d) the threshold strength required for good function is activity-specific. Analysis of existing data supported the importance of these concepts. However, whether strength training can improve functional status in older adults is unclear. Rigorously designed randomized controlled trials are needed that address whether long-term effects of exercise on functional status are possible, and how best to promote adherence to exercise in older adults.
Life Stress and Illness: The Question of Specificity
Authors: Harris Tirril 
Published: March 2024

Abstract
The hypothesis that specific disorders arise from specific psychosocial circumstances has received little attention in the last couple of decades. Recently developed measurements of stress, specifically the Life Events and Difficulties Schedule (LEDS), allow a more focused perspective on the differing psychosocial pathways to psychiatric and physical disorder. This is the result of the level of measurement employed by the LEDS, whereby specific qualities of distress, such as losses, dangers, frustrations, and so on, can be distinguished from each other within the overall category of distressing/unpleasant experience. Studies of depression, anxiety, schizophrenia, abdominal pain, appendectomy, menorrhagia, secondary amenorrhea, and myocardial infarction using the LEDS suggest that the specific qualities of the stressors involved in the onset of each condition may parallel similar predisposing vulnerabilities in the personalities of those becoming ill, and corresponding psychiatric conditions between stressor and somatic onset. An overall framework is outlined within which disorders are typified as more or less disengaged/overengaged, and suggestions are offered for future research.
Self-Monitoring of Blood Glucose: Impact and Adherence During Diabetic Pregnancy
Authors: Zayfert Claudia , Goetsch Virginia L. 
Published: March 2024

Abstract
A review of the literature reveals that the issue of patient self regulation has been sorely neglected in regard to diabetes in pregnancy. The impact of self management of blood glucose (particularly self monitoring of blood glucose) cannot be conclusively determined because most studies have not used appropriate comparison groups and have failed to adequately assess patient adherence. A substantial but as yet undefined, portion of women with diabetes do not follow their diabetic treatment protocol during pregnancy. This presents a risk to maternal health and fetal well-being. Factors pertinent to adherence by pregnant women are outlined and directions for research are suggested.
Daily Stress and Stress-Related Disorders
Authors: Brantley Phillip J. , Jones Glenn N. 
Published: March 2024

Abstract
This review examines literature linking minor stress to disorders commonly presumed to be stress-related. The development of the Daily Stress Inventory, an instrument designed to explore this association, is presented. Investigations of the association between daily minor stress and the selected stress-related disorders of asthma, headache, inflammatory bowel disease, and diabetes are reviewed. In all of these disorders there is evidence of varying quality that daily minor stress may be associated with exacerbation. The nature of this association remains unclear in most cases. Further, there is evidence suggesting the strength of the association varies greatly across individuals. Diagnostic implications are discussed, as are the implications for assessment and treatment studies.
Obesity and Related Eating and Exercise Behaviors in Women
Authors: Wing Rena R. 
Published: March 2024

Abstract
Obesity is an important health problem for women, affecting 30% of middle-aged Caucasian women and 60% of middle-aged African—American women. Consequently, this article reviews recent research findings related to the problem of obesity and its health implications. The major focus of the article is on new directions in the treatment and prevention of obesity. The implications of the recent research on obesity for clinical practice are discussed, and recommendations are made for future research and clinical practice.