bluuebunny/crossref_metadata_2025_split huggingface dataset:
Buffer evaluation model and scheduling strategy for video streaming services in 5G-powered drone using machine learning
Authors: Su Yu , Wang Shuijie , Cheng Qianqian , Qiu Yuhe 
Published: August 2021

AbstractWith regard to video streaming services under wireless networks, how to improve the quality of experience (QoE) has always been a challenging task. Especially after the arrival of the 5G era, more attention has been paid to analyze the experience quality of video streaming in more complex network scenarios (such as 5G-powered drone video transmission). Insufficient buffer in the video stream transmission process will cause the playback to freeze [1]. In order to cope with this defect, this paper proposes a buffer starvation evaluation model based on deep learning and a video stream scheduling model based on reinforcement learning. This approach uses the method of machine learning to extract the correlation between the buffer starvation probability distribution and the traffic load, thereby obtaining the explicit evaluation results of buffer starvation events and a series of resource allocation strategies that optimize long-term QoE. In order to deal with the noise problem caused by the random environment, the model introduces an internal reward mechanism in the scheduling process, so that the agent can fully explore the environment. Experiments have proved that our framework can effectively evaluate and improve the video service quality of 5G-powered UAV.
Interrelationships Between Sclerostin, Secondary Hyperparathyroidism, and Bone Metabolism in Patients on Hemodialysis
Authors: Nakagawa Yosuke , Komaba Hirotaka , Hamano Naoto , Tanaka Hisae , Wada Takehiko , Ishida Hiroaki , Nakamura Michio , Takahashi Hiroo , Takahashi Yuichiro , Hyodo Toru , Hida Miho , Suga Takao , Kakuta Takatoshi , Fukagawa Masafumi 
Published: August 2021

Abstract

Context
Sclerostin is an osteocyte-derived inhibitor of bone formation and is increased in kidney failure, but its role in the pathogenesis of renal bone disease remains unknown.

Objective
We aimed to explore the association of serum sclerostin with bone metabolism in patients undergoing hemodialysis, with a particular focus on parathyroid hormone (PTH)-dependent and PTH-independent pathways.

Methods
This cross-sectional and prospective cohort study included 654 patients undergoing hemodialysis at 10 facilities in Japan. We employed multivariable linear regression to explore whether sclerostin levels were associated with metacarpal bone mineral density (BMD), intact PTH, bone alkaline phosphatase (BAP), and tartrate-resistant acid phosphatase-5b (TRACP-5b). We employed mediation analyses to explore whether and to what extent the association of PTH with bone turnover markers is mediated by sclerostin. We also compared sclerostin levels between patients with and without previous or incident fractures.

Results
The median sclerostin level in hemodialysis patients was 3- to 4-fold higher than that in healthy individuals. Higher sclerostin levels were associated with higher metacarpal BMD and lower levels of intact PTH, BAP, and TRACP-5b. However, the relationships of sclerostin with bone turnover markers were substantially attenuated after adjustment for PTH. Mediation analysis suggested that the effects of PTH on bone turnover markers were mainly direct rather than mediated by sclerostin. Sclerostin levels were not associated with previous or incident fractures.

Conclusion
These findings suggest that in patients undergoing dialysis, sclerostin has only a limited role in bone metabolism and may not mediate the effect of PTH on bone turnover.
Safe Transitions and Congregate Living in the Age of COVID‐19: A Retrospective Cohort Study
Authors: Boyle Christopher A , Ravichandran Urmila , Hankamp Valerie , Ilbawi Nadim , Conway‐Svec Coleen , Shifley Diane , Hensing Thomas , Kim Susan , Halasyamani Lakshmi 
Published: August 2021

BACKGROUNDCOVID‐19 represents a grave risk to residents in skilled nursing facilities (SNFs).OBJECTIVETo determine whether establishment of an appropriate‐use committee was associated with a reduction in SNF utilization.DESIGNS, SETTING, AND PARTICIPANTSRetrospective cohort study at NorthShore University HealthSystem, a multihospital integrated health system in northern Illinois. Participants were patients hospitalized from March 19, 2019, to July 16, 2020.INTERVENTIONCreation of a multidisciplinary committee to assess appropriateness of discharge to SNF following hospitalization.MAIN OUTCOME AND MEASURESPrimary outcome was total discharges to SNFs. Secondary outcomes were new discharges to SNFs, readmissions, length of stay (LOS), and COVID‐19 incidence following discharge.RESULTSMatched populations pre and post intervention were each 4424 patients. Post intervention, there was a relative reduction in total SNF discharges of 49.7% (odds ratio [OR], 0.42; 95% CI, 0.38‐0.47) and in new SNF discharges of 66.9% (OR, 0.29; 95% CI, 0.25‐0.34). Differences in readmissions and LOS were not statistically significant. For patients discharged to a SNF, 2.99% (95% CI, 1.59%‐4.39%) developed COVID‐19 within 30 days., compared with 0.26% (95% CI, 0.29%‐0.93%) of patients discharged to other settings (P < .001).CONCLUSIONImplementing a review committee to assess for appropriateness of SNF use after a hospitalization during the COVID‐19 pandemic is highly effective. There was no negative impact on safety or efficiency of hospital care, and reduced SNF use likely prevented several cases of COVID‐19. This model could serve as a template for other hospitals to reduce the risks of COVID‐19 in SNFs and as part of a value‐based care strategy.
Defining Potential Overutilization of Physical Therapy Consults on Hospital Medicine Services
Authors: Martinez Maylyn , Cerasale Matthew , Baig Mahnoor , Dugan Claire , Robinson Marla , Sweis Meghan , Prochaska Micah , Schram Andrew , Meltzer David , Arora Vineet M 
Published: August 2021

Appropriate use of inpatient physical therapy services is important for preventing hospital‐associated disability (HAD). We assessed potential overutilization of physical therapy consults on hospital medicine services using the Activity Measure‐Post Acute Care (AM‐PAC) score. Our sample included 3592 unique admissions (mean age, 66 years; 48% women) at a large academic medical center. Based on an AM‐PAC cutoff of >43.63 (raw score, 18) in patients who were discharged to home, 38% of physical therapy consults were considered “potential overutilization.”Combined with age <65 years, 18% of consults remained “potential overutilization.” After adjustment for age, sex, and length of stay, patients admitted with high mobility scores were 5.38 times more likely to be discharged to home (95% CI, 4.36‐2.89) compared with those with low mobility scores. Being more judicious with physical therapy consults and reserving skilled therapy for at‐risk patients could help prevent HAD while also having a positive impact on healthcare systems.
The post-diagnosis sleep quality of patients with Parkinson's disease
Authors: Fujii Chieko 
Published: August 2021

Background: Addressing the complex factors associated with Parkinson's disease (PD) requires patient interventions to be implemented by nurses and caregivers that consider personality traits and their relationship to sleep quality. Aims: To assess the sleep quality and personality traits of patients with PD pre- and post-diagnosis and determine how these factors affect patients' quality of life. Methods: The authors mailed a self-reporting questionnaire survey to all 822 members of the Japanese PD Association of Tokyo in January 2017. The overall response rate was 48.4%, and the effective response rate was 34.3%. A total of 282 participants (136 men and 146 women) were enrolled. Each patient responded to questions regarding their sex, age and primary symptoms. Participants also provided responses to questions about the hours slept per night and hours spent napping, as well as the number of toilet visits during sleep and outcomes of Type A behavioural tests. Findings: Patients with PD reported a post-diagnosis decrease in sleep time and an increase in napping time. The study subjects also reported becoming tense easily, but they did not report feeling irritated or angry. The subjective assessment indicated a post-diagnosis worsening of sleep quality in patients with PD. Conclusions: Although the underlying mechanisms of PD are not yet fully understood, patients with PD require comprehensive strategies for care that should include actions such as encouragement of patients with PD to participate in society and to perform appropriate activities that enhance sleep quality.
Compression neuropathies of the forearm: anatomy, clinical features and management
Authors: Scarborough Alexander , MacFarlane Robert J , Klontzas Michail , Zhou Rui , Waseem Mohammad 
Published: August 2021

The upper limb consists of four major parts: a girdle formed by the clavicle and scapula, the arm, the forearm and the hand. Peripheral nerve lesions of the upper limb are divided into lesions of the brachial plexus or the nerves arising from it. Lesions of the nerves arising from the brachial plexus are further divided into upper (proximal) or lower (distal) lesions based on their location. Peripheral nerves in the forearm can be compressed in various locations and by a wide range of pathologies. A thorough understanding of the anatomy and clinical presentations of these compression neuropathies can lead to prompt diagnosis and management, preventing possible permanent damage. This article discusses the aetiology, anatomy, clinical presentation and surgical management of compressive neuropathies of the upper limb.
Cultivar Coefficient Estimator for the Cropping System Model Based on Time-Series Data: A Case Study for Soybean
Authors: Memic Emir , Graeff Simone , Boote Kenneth J. , Hensel Oliver , Hoogenboom Gerrit 
Published: August 2021

HighlightsSoftware was developed for estimation of DSSAT CSM-CROPGRO-Soybean cultivar coefficients.Phenology-related coefficients were estimated based on observed phenological events.Growth-related cultivar coefficients were estimated based on time-series observations.Cultivar coefficients were optimized based on single- and multiple-experiment data sets.Abstract. The Decision Support System for Agrotechnology Transfer (DSSAT) is one of the most popular software solutions for predicting crop growth and yield while capturing the effects of management practices and interactions between the crop and the environment. Accurate estimation of the crop cultivar coefficients that govern in-season growth and development is critical for correct yield estimates. The manual cultivar coefficient estimation process is time-consuming and results in user-dependent, subjective optimums that are difficult to reproduce. Typically, end-of-season observations (point-based) are used for estimating dynamic in-season biomass accumulation rates. The objective of this study was to develop a time-series estimator (TSE) capable of using multiple in-season observations for estimating the coefficients that define in-season growth and biomass partitioning. Using the TSE, cultivar coefficients were estimated based on multiple in-season observations of leaf area index (LAI) and shoot, leaf, and grain dry matter weights. The cultivar coefficients were estimated from single- and multiple-treatment (seasons and locations) in-season observations. This was done for two cultivars for six management × environment combinations. Estimated multiple-treatment based cultivar coefficients were evaluated with an independent data set and compared to DSSAT standard (manual) coefficients and the cultivar coefficients estimated with the GLUE method. The average normalized root mean squared error (nRSME) for LAI and shoot, leaf, and grain weights was 26% lower for one cultivar and about the same for the other cultivar when compared to the DSSAT standard. Because GLUE uses end-of-season point-based cultivar coefficient estimation, the grain weight over time was underestimated in earlier phases and more accurate toward harvest. The TSE-estimated cultivar coefficients based on 346 in-season observations across multiple target variables and six experiments more accurately reflected in-season growth and grain weight without compromising final grain weight predictions. Keywords: . CROPGRO-Soybean, DSSAT, Genetic coefficients, Normalized root mean square error minimization, Time-seris observations.
Evaluation of the Mechanical and Physical Properties of Insulation Fiberboard with Cellulose Nanofibers
Authors: Kojima Yoichi , Makino Tetsuya , Ota Kazuaki , Murayama Kazushige , Kobori Hikaru , Aoki Kenji , Suzuki Shigehiko , Ito Hirokazu 
Published: August 2021

Abstract
The objective of this study was to investigate the lab-scale manufacturing process of insulation fiberboard (IFB) with cellulose nanofibers (CNFs) and evaluate the effects of CNFs on the mechanical and physical properties of the IFB. Because the fabricated IFBs with CNFs had a homogeneous appearance, it was assumed that CNFs can be easily dispersed within IFB by adding them during the mixing stage of the wet process of wood-based board production. The results for the IFBs with CNFs revealed that the density and bending properties increased, while the thickness decreased with an increase in the CNF addition ratio. Furthermore, after the water absorption test, the weight change rates of the IFBs decreased, and the thickness swelling rates increased. Although the size of the specimens was different from the size in JIS A 5905 (Japan Standards Association 2014), the modulus of rupture (MOR) values of IFBs with a target density more than or equal to 0.20 g/cm3 were higher than the value of A-class IFB in the standard for all CNF addition ratios. In addition, lower thermal conductivity may be realized under similar MOR values by adding CNFs to IFB. On the other hand, to produce CNF-reinforced IFBs with target density/thickness, it is necessary to develop a method for decreasing the cohesive force derived from CNF aggregation and the compressive force originating from the water surface tension caused by the high water retention of CNFs.
Possessive pour in the French Lexicon of the Ivory Coast and Language Contact
Authors: Akissi Boutin Béatrice 
Published: August 2021

Any variationist study of Ivory Coast French needs to take into account sociolinguistic considerations and systemic features of other contact languages. For instance, there is a specific usage of pour against which the interference hypothesis can easily be tested:
FI:	Le kaki que je porte présentement, c'est pour un bachelier qui me l'a laissé avant de partir en fac, cadeau. (Lafage 2003: 676).
Avant de te moquer du linge de ta voisine, regarde si pour toi est propre..
In Ivory Coast French, pour (N/Pro) can display a variety of functions: it can be part of associative predications, it can stand for genitive phrases in an anaphoric construction, make reference to an object in relation with another and participate in various idiomatic expressions.
This paper has a twofold objective. First, I argue that pour (N/Pro) constructions has to be analysed as an empty headed "associative" noun phrase. Second, I will show the relevance of extra- AND intersystemic factors in accounting for language variation. Incidentally, the use of pour (N/Pro) constructions seems to be conditioned by the availability of similar constructions in other Ivory Coast languages on the one hand, such as baoule (o liε) or dioula (à tá), and, cultural needs on the other.
Microwave photonic radar for distance and velocity measurement based on optical mixing and compressive sensing
Authors: Ding Yujiao , Guo Shuxu , Zhou Weinan , Dong Wei 
Published: August 2021

We propose a microwave photonic compressive sensing radar for distance and velocity measurement. First, a de-chirped signal that carries distance or velocity information is extracted between the transmitted and received signals in the proposed system. Then it is mixed with a pseudo-random bit sequence in the optical domain using a Mach–Zehnder modulator. After that, the de-chirped signal can be acquired by a photodetector and an analog-to-digital converter (ADC) at a sub-Nyquist sampling rate. Finally, a reconstruction algorithm can be used to recover the de-chirped signal. In our test, the bandwidth of ADC can be shortened from 2 GHz to 500 MHz, leading to a compression factor of four. A series of frequencies from 1.043 GHz to 1.875 GHz can be compressed with a 500-MHz ADC and recovered using a reconstruction algorithm. For a moving target, the Doppler frequency shift can be calculated, and the direction of the moving target can be distinguished. The maximum relative error of distance measurement is 0.21%. The maximum relative error of velocity measurement is 2.6%. The signal-to-noise ratio can be developed from

∼

15

d
B

to

∼

30

d
B

. This microwave photonic compressive sensing radar can achieve distance and velocity measurements using few samples. Also, it provides a large bandwidth of system operation and reduces data processing and storage pressure.
Theoretical and experimental research on crosstalk in spectral beam combining of a laser diode bar with a high fill factor
Authors: Ma Haojie , Xiao Yu , Hu Cong , Song Yuyan , Tang Xiahui 
Published: August 2021

Spectral beam combining is an important way to improve the brightness of semiconductor laser beams. For a spectral beam combining system, crosstalk between different emitters would cause the deterioration of beam quality and the reduction of beam combining efficiency, especially for the laser diode bar with a high fill factor. In this paper, an analysis model of the spectral beam combining system with crosstalk is established. The most important advantage of this model is that it can analyze the spectral distribution of the combined beam and also give a relatively good estimation for the beam quality parameters, such as beam size and far-field divergence angle. This model is verified by the experimental results. Furthermore, based on the theoretical model, a method for eliminating crosstalk is developed. By introducing a spatial filter inside the grating external cavity, the crosstalk between different emitters is blocked in the far field, and the beam quality is improved. In the experiment of beam combining of five emitters, after crosstalk is eliminated, the divergence angle of the combined laser beam is reduced from 10.09 to 4.73 mrad, the beam parameter product is reduced from 2.95 to 0.91 mm

⋅

mrad, and the power of the main lobe is improved from 1.77 to 2 W.
Cost-effective and robust DSP scheme for a short-reach coherent system in the presence of transmitter IQ skew and chromatic dispersion
Authors: Yang Yanfu , Xiang Qian , Zuo Tianjian , Zhang Tingting , Zhang Qun , Liu Lei , Zhang Sen , Yao Yong 
Published: August 2021

A cost-effective and robust digital signal processing (DSP) scheme is proposed and demonstrated experimentally in a coherent 61 GBaud PDM 16QAM system. In our scheme, multi-stage DSP blocks are used to deal with channel effects, transceiver in-phase and quadrature (IQ) skew, and phase noise. A

4

×

4

real-valued multiple-input multiple-output (RV-MIMO) with

N

1

taps is for polarization recovery and receiver IQ skew calibration. After frequency offset compensation, two

2

×

2

RV-MIMO with

N

2

taps are used to compensate for chromatic dispersion (CD), inter-symbol interference, transmitter IQ skew, and phase noise. Finally, the residual phase noise is eliminated by the maximum likelihood (ML) estimator. The experimental results indicate that the proposed scheme provides better received optical power sensitivity and CD tolerance than the existing simplified DSP schemes. In addition, the proposed scheme can tolerate transmitter IQ skew up to 7 ps in a 10 km case, which outperforms both simplified and conventional DSP schemes. Meanwhile, the proposed scheme can keep the same transceiver IQ skew and CD tolerance and has reduced complexity by 25% after 10 km links, compared to

4

×

4

RV-MIMO followed by a transmitter skew compensator. To the best of our knowledge, the proposed scheme is the most cost-effective solution for a high baud rate datacenter interconnects where transmitter IQ skew and CD have to be dealt with.
Exploring variables associated with medication non-adherence in patients with type 2 diabetes mellitus
Authors: Al-Qerem Walid , Jarab Anan S. , Badinjki Mohammad , Hyassat Dana , Qarqaz Raghda 
Published: August 2021

Objective
This study aims to assess medication adherence and explore its predictors in outpatients with type 2 diabetes.

Method
This cross-sectional study collected socio-demographics, disease-related information, and different biomedical variables for type 2 diabetes patients attending a Jordanian Diabetes center. The four-item medication adherence scale (4-IMAS) and the beliefs about medications questionnaire (BMQ) which includes necessity and concerns were used. Stepwise backward quartile regression models were conducted to evaluate variables associated with the Necessity and Concerns scores. Stepwise ordinal regression was conducted to evaluate variables associated with adherence.

Results
287 diabetic patients participated in the study. Almost half of the participants (46.5%) reported moderate adherence and 12.2% reported low adherence. Significant predictors of the adherence were necessity score (OR = 14.86, p <0.01), concern score (OR = 0.36, p <0.05), and frequency of medication administration (OR = 0.88, p- <0.01). Education was a significant predictor of Necessity and Concerns scores (β = 0.48, -0.2, respectively).

Conclusion
Simplifying the medication regimen, emphasizing medication necessity and overcoming medication concerns should be targeted in future diabetes intervention programs to improve medication adherence and hence glycemic control among diabetic patients.
Dinamika Perubahan Kurikulum: Kebijakan Perubahan Kurikulum 2013 PAUD
Authors: Istiqomah Laelatul 
Published: August 2021

One of the educational problems in Indonesia is the curriculum. Along with the development and challenges of the times, the curriculum is always run into changing, as well the systemic and purposefull development. the curriculum implementation should be able to realize the vision, mission, and goals of national education gradually. the most basic of change and development of curriculum is changing and developing early childhood curriculum. because the quality of Early Childhood Education determines the quality of Indonesian human resources (HR) in the future, one of which is the 2013 early childhood curriculum. currently early childhood education has had its own curriculum, because during this time early childhood education doesn't have an curriculum. the 2013 Early Childhood curriculum is expected to encourage the development of learners optimally.
Perencanaan dan Asesmen Perkembangan Pada Anak Usia Dini
Authors: Suyadi Suyadi 
Published: August 2021

The purpose of this research is to uncover how teachers at institutions of education (PAUD/TK/RA) make the assessments and planning of the childhood development and to know the assessments process difficulties. Methods used is survey, namely by seeking information on the implementation of planning and the assessments process of the childhood development from 55 educator at educational institutions in special region of Yogyakarta. The conclusions from this study were that in make the planning evaluation all teachers have appropriate to childhood developmental tasks (STPPA). As for technique of assessments most commonly used the observation and portfolio methods, because it’s more simple and easily.