bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of the predictive validity of the Hessisch Oldendorf Risk of Falling Scale (HOSS)
Authors: Schmidt Simone B , Boltzmann Melanie , Rollnik Jens D 
Published: August 2021

Objective: This study aims to further validate the Hessisch Oldendorf Risk of Falling Scale (HOSS) for neurological rehabilitation patients. Design: The overall scale performance and fall rate was calculated in a retrospective data analysis. Setting: The study was performed in a subacute care facility during inpatient neurological rehabilitation. Subjects: The study population ( n = 512) included neurological and neurosurgical patients with heterogeneous levels of disability. Main measures: The HOSS total score and the suspected risk of falling were compared with the number of falls. Characteristics of fallers and non-fallers were compared using non-parametric group comparisons. Overall scale performance was assessed by calculating the area under the receiver operating characteristic curve of the HOSS as well as by calculating the sensitivity and specificity. Results: A total of 82 (16%) patients experienced at least one fall. Fallers were characterized by an older age, a longer length of stay, a more severe impairment in the activities of daily living upon admission, a hemiparesis, an orientation disorder, a need of a walking aid device and an urinary incontinence. The number of falls was associated with the HOSS total score. Sixty-four fallers and two hundred seventy-four non-fallers were correctly categorized leading to a sensitivity of 78.0% and a specificity of 63.7%. The area under the receiver operating characteristic curve of the HOSS was 0.778 ± 0.25 (CI = 0.729–0.828, P < 0.001). Conclusion: The scale performance of the HOSS showed a good sensitivity and an adequate specificity to identify neurological patients who are at high risk of falling during inpatient rehabilitation.
Progranulin promotes osteogenic differentiation of periodontal membrane stem cells in both inflammatory and non-inflammatory conditions
Authors: Yu Miao , Sun Long , Ba Pengfei , Li Linxia , Chen Jing , Sun Qinfeng 
Published: August 2021

Objective The growth factor progranulin (PGRN) is widely expressed and plays important roles in anti-inflammatory signaling and bone regeneration. However, the anti-inflammatory and pro-osteogenic roles of PGRN in periodontitis are seldom studied. We used an in vitro model to investigate whether PGRN can promote osteogenic differentiation of periodontal ligament stem cells (PDLSCs). Methods PDLSCs were treated with PGRN (0 to 100 ng/mL) and the optimal concentrations required to induce proliferation and osteogenesis were identified. PDLSCs were cultured with 10 ng/mL tumor necrosis factor (TNF)-α, 25 ng/mL PGRN, or 10 ng/mL TNF-α + 25 ng/ml PGRN; untreated PDLSCs were used as controls. The effects of PGRN on PDLSC proliferation and osteogenic differentiation were assessed. Results PGRN (5, 25, and 50 ng/mL) promoted PDLSC proliferation and osteogenic differentiation, with the 25-ng/mL dose showing the largest effect. Furthermore, 25 ng/mL PGRN reversed inhibition of osteogenic differentiation by TNF-α. Conclusion PGRN promotes PDLSC proliferation, osteogenic differentiation, and mineralization in both inflammatory and non-inflammatory conditions. The 25-ng/mL PRGN dose was the most suitable for inducing proliferation and osteogenesis. Further studies using animal models will be required to obtain pre-clinical evidence to support using PGRN as a treatment for periodontitis.
Synthetic PVA Osteochondral Implants for the Knee Joint: Mechanical Characteristics During Simulated Gait
Authors: Chen Tony , Brial Caroline , McCarthy Moira , Warren Russell F. , Maher Suzanne A. 
Published: August 2021

Background: Although polyvinyl alcohol (PVA) implants have been developed and used for the treatment of femoral osteochondral defects, their effect on joint contact mechanics during gait has not been assessed. Purpose/Hypothesis: The purpose was to quantify the contact mechanics during simulated gait of focal osteochondral femoral defects and synthetic PVA implants (10% and 20% by volume of PVA), with and without porous titanium (pTi) bases. It was hypothesized that PVA implants with a higher polymer content (and thus a higher modulus) combined with a pTi base would significantly improve defect-related knee joint contact mechanics. Study Design: Controlled laboratory study. Methods: Four cylindrical implants were manufactured: 10% PVA, 20% PVA, and 10% and 20% PVA disks mounted on a pTi base. Devices were implanted into 8 mm–diameter osteochondral defects created on the medial femoral condyles of 7 human cadaveric knees. Knees underwent simulated gait and contact stresses across the tibial plateau were recorded. Contact area, peak contact stress, the sum of stress in 3 regions of interest across the tibial plateau, and the distribution of stresses, as quantified by tracking the weighted center of contact stress throughout gait, were computed for all conditions. Results: An osteochondral defect caused a redistribution of contact stress across the plateau during simulated gait. Solid PVA implants did not improve contact mechanics, while the addition of a porous metal base led to significantly improved joint contact mechanics. Implants consisting of a 20% PVA disk mounted on a pTi base significantly improved the majority of contact mechanics parameters relative to the empty defect condition. Conclusion: The information obtained using our cadaveric test system demonstrated the mechanical consequences of femoral focal osteochondral defects and provides biomechanical support to further pursue the efficacy of high-polymer-content PVA disks attached to a pTi base to improve contact mechanics. Clinical Relevance: As a range of solutions are explored for the treatment of osteochondral defects, our preclinical cadaveric testing model provides unique biomechanical evidence for the continued investigation of novel solutions for osteochondral defects.
Creation and Validation of a Shorthand Magnetic Resonance Imaging Bone Age Assessment Tool of the Knee as an Alternative Skeletal Maturity Assessment
Authors: Politzer Cary S. , Bomar James D. , Pehlivan Hakan C. , Gurusamy Pradyumna , Edmonds Eric W. , Pennock Andrew T. 
Published: August 2021

Background: In managing pediatric knee conditions, an accurate bone age assessment is often critical for diagnostic, prognostic, and treatment purposes. Historically, the Greulich and Pyle atlas (hand atlas) has been the gold standard bone age assessment tool. In 2013, a shorthand bone age assessment tool based on this atlas (hand shorthand) was devised as a simpler and more efficient alternative. Recently, a knee magnetic resonance imaging (MRI) bone age atlas (MRI atlas) was created to circumvent the need for a left-hand radiograph. Purpose: To create a shorthand version of the knee MRI atlas. Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: A shorthand bone age assessment method was created utilizing the previously published MRI atlas, which utilizes several criteria that are visualized across a series of images. The MRI shorthand draws on characteristic criteria for each age that are best observed on a single MRI scan. For validation, we performed a retrospective assessment of skeletally immature patients. One reader performed the bone age assessment using the MRI atlas and the MRI shorthand on 200 patients. Then, 4 readers performed the bone age assessment with the hand atlas, hand shorthand, MRI atlas, and MRI shorthand on a subset of 22 patients in a blinded fashion. All 22 patients had a knee MRI scan and a left-hand radiograph within 4 weeks of each other. Interobserver and intraobserver reliability, as well as variability among observers, were evaluated. Results: A total of 200 patients with a mean age of 13.5 years (range, 9.08-17.98 years) were included in this study. Also, 22 patients with a mean age of 13.3 years (range, 9.0-15.6 years) had a knee MRI scan and a left-hand radiograph within 4 weeks. The intraobserver and interobserver reliability of all 4 assessment tools were acceptable (intraclass correlation coefficient [ICC] ≥ 0.8; P < .001). When comparing the MRI shorthand with the MRI atlas, there was excellent agreement (ICC = 0.989), whereas the hand shorthand compared with the hand atlas had good agreement (ICC = 0.765). The MRI shorthand also had perfect agreement in 50% of readings among all 4 readers, and 95% of readings had agreement within 1 year, whereas the hand shorthand had perfect agreement in 32% of readings and 77% agreement within 1 year. Conclusion: The MRI shorthand is a simple and efficient means of assessing the skeletal maturity of adolescent patients with a knee MRI scan. This bone age assessment technique had interobserver and intraobserver reliability equivalent to or better than the standard method of utilizing a left-hand radiograph.
Professional codes of conduct: A scoping review
Authors: Collings-Hughes Derek , Townsend Ruth , Williams Brett 
Published: August 2021

Background: Professional ethical codes are an important part of healthcare. They are part of the professionalisation of an occupation, are used for regulation of the professions and are intended to guide ethical behaviour in healthcare. However, so far, little is known about the practical use of professional codes in healthcare, particularly in paramedicine. Objective: The aim of this scoping review was to determine what is known in the existing literature about health professionals’ knowledge, awareness and use of their professional codes. Method: A scoping review was performed based on a six-stage framework as described by Levac et al. Six databases were searched: OVID Medline, EMBASE, EMCARE, CINAHL, ProQuest and Scopus, in September 2020. Google Scholar, Trove and Google using .gov and .org websites were also searched for grey literature. Two reviewers independently assessed study eligibility. Results: The search yielded 1162 results after duplicate removal. Thirty-nine studies remained after title and abstract review. Twenty-five articles were included after full-text review. Sixteen examined nursing, eight examined medicine and one examined both nursing and medicine. No studies were identified that examined paramedicine. Twenty-one studies were of a cross-sectional design and four studies were of a qualitative design. Conclusion: Most health professionals know the codes exist, but do not think they know the content. Despite valuing professional codes highly, healthcare professionals do not use them regularly in clinical practice. Further research is needed, and professional codes should be made useful for practice and consideration given to how codes can be written, communicated and implemented to increase their actualisation in healthcare. Research should also begin in paramedicine to identify clinician’s knowledge and use of codes in this profession. Review registration: Open Science Framework – doi:10.17605/OSF.IO/NKBY4 Ethics Statement: This article does not contain any studies involving human participants performed by any of the authors. The review followed good scientific conduct.
Nano-Curcumin Protects Against Sodium Nitrite–Induced Lung Hypoxia Through Modulation of Mitogen-Activated Protein Kinases/c-Jun NH2-Terminal Kinase Signaling Pathway
Authors: Alhusaini Ahlam , Alhumaidan Sara , Almogren Renad , Alsaif Shaikha , Alsultan Ebtesam , Hussein Iman 
Published: August 2021

Background and objective This study was designed to compare the efficacy of curcumin (CRN) with that of nano-curcumin (N-CRN) in the mitigation of various biochemical indices in hypoxic lung induced by sodium nitrite (SN) in rats. Methods Twenty-four adult male albino rats were divided into 4 groups. Group 1: control group received carboxy methyl cellulose; Group 2: hypoxic group injected with single dose of SN (60 mg/kg, s.c.); Group 3: SN-intoxicated rats pre-injected with CRN (100 mg/kg, i.p.); and Group 4: SN-intoxicated rats pre-injected with N-CRN (100 mg/kg, i.p.). Curcumin and N-CRN were administered intraperitoneally 2 hour prior to SN intoxication. Hemoglobin concentration, serum tumor necrosis factor-alpha (TNF-α), and caspase-3 were analyzed. Gene expression of hypoxia inducible factor-1 (HIF-1α), matrix metallo-proteinases (MMP)-2, and tissue inhibitors of metalloproteinases (TIMPs)-2, as well as the protein expression of mitogen-activated protein kinases (MAPKs) and c-Jun NH2-terminal kinase (JNK) were examined in lung tissues. Results Hemoglobin level was markedly reduced, and serum TNF-α and caspase-3 were significantly elevated post SN intoxication. The lung MMP-2 and HIF-1α mRNA were overexpressed in the hypoxic group; while TIMP-2 mRNA was downregulated. Sodium nitrite administration increased proteins’ expressions of MAPK and JNK. Pretreatment with CRN or N-CRN markedly mitigated those alterations. These results were supported by histopathological examinations of lung tissue. Conclusion Interestingly, N-CRN exhibited a pronounced protective effect via suppression of inflammatory and apoptotic biomarkers and modulation of MAPK/JNK signaling pathway.
In Search of a Blue Ocean in the Indian Wine Industry
Authors: Devi Toijam Sarika , Sarmah Bijoylaxmi , Dewangan K. N. , Phookan Neeraj Kumar 
Published: August 2021

Naara-Aaba is an indigenous wine innovated by a woman who could predict a beautiful end to her vision of brewing wine from the sacred but exotic fruit kiwi. The brand was launched in 2017 at Hong village of Ziro, Arunachal Pradesh by Tage Rita Takhe; an engineer turned entrepreneur through her venture M/s Lambu Subu Food & Beverages. The brand was named after her late father-in-law lovingly known as ‘Naara’ and ‘Aaba’ meaning father. The motto of the company is to fight a social problem that wreaks havoc across the region, namely the suicides of thousands of farmers who cannot pay back their debt due to drought, poor harvest, and sometimes exacerbated by climate. Rita started her winery facing these hurdles and a field abundant in kiwi fruits. Despite facing many challenges such as lack of efficient production infrastructure, market connectivity, and minimum support from the government machinery, she has created a niche market in the wine industry. This case aims to establish the applicability of the Blue Ocean strategy by applying the tools to create an uncontested market space for Naara-Aaba, the first organic kiwi wine from the north-eastern states of India and second in the world after New Zealand. Research question: How to apply Blue Ocean strategy for the brand Naara-Aaba so that the competition becomes irrelevant? Theory: Blue Ocean theory Type of the case: Applied problem solving Basis of the case: Phenomenon-creating uncontested space in the market Protagonist: Present Findings: The findings revealed that implementing a Blue Ocean strategy will open up new uncontested market spaces for the brand to grow profitably. This case study shows how to apply Blue Ocean strategy for a wine brand. Discussion: Blue Ocean strategy advocates that by eliminating unnecessary attributes, reducing all features that pushes up the cost, raising utility, and creating higher value, a brand can redefine its market where competition is non-existent.
Sleep problem screening of young children by speech-language pathologists: A mixed-methods feasibility study
Authors: Bonuck Karen , Battino Risa , Barresi Ida , McGrath Kathleen 
Published: August 2021

Background & Aims Poor sleep in young children imperils language learning and use. Both sleep and language problems are prevalent in early childhood. Speech-language pathologists are in a unique position to expand surveillance of sleep problems, which in turn may contribute to communication difficulties. We conducted a feasibility study of speech-language pathologist screening for behavioral sleep problems and sleep-disordered breathing symptoms at a multidisciplinary evaluation and treatment center. Methods Speech-language pathologists administered screeners to parents of 2–6-year-olds: the Short Form-Children's Sleep Habits Questionnaire (for behavioral sleep problems) which includes an item asking if the child has a sleep problem (yes/no), and the pediatric sleep questionnaire (for sleep-disordered breathing). Speech-language pathologists participated in pre- and post-screening focus groups. Pre-screening topics included professional preparation and clinical experience regarding pediatric sleep issues. Post-screening, speech-language pathologists provided feedback about the screening experience and feasibility of incorporating such screening into practice. Results Among 51 children, 31% (16/51) screened positive for sleep-disordered breathing, 78% for behavioral sleep problems (40/51), and 43% (12/28) per parent report. Parent-reported problems were associated with sleep-disordered breathing ( p = 0.00) but not behavioral sleep problems ( p = 0.24). During focus groups, speech-language pathologists reported no formal pediatric sleep training, high parent concern about sleep, and agreed that screening fit their professional mandate. Speech-language pathologists affirmed that the ≤15 min screenings integrated seamlessly into practice but that additional training, particularly for sleep-disordered breathing, was needed. Conclusions The prevalence of sleep problems in 2–6-year-olds presenting to speech-language pathologists was higher than in community samples, but consistent with data from young children with developmental disabilities. Speech-language pathologists endorsed the utility and feasibility of sleep problem screening and education in their clinical practice. Implications Integrating sleep problem screening and education into speech-language pathologist practice is feasible and could widen surveillance of both sleep problems and risk factors for developmental language disorders. Further research should include larger samples and other settings, e.g. home or school.
Enable a Facile Size Re-distribution of MBE-Grown Ga-Droplets via In Situ Pulsed Laser Shooting
Authors: Geng Biao , Shi Zhenwu , Chen Chen , Zhang Wei , Yang Linyun , Deng Changwei , Yang Xinning , Miao Lili , Peng Changsi 
Published: August 2021

AbstractA MBE-prepared Gallium (Ga)-droplet surface on GaAs (001) substrate is in situ irradiated by a single shot of UV pulsed laser. It demonstrates that laser shooting can facilely re-adjust the size of Ga-droplet and a special Ga-droplet of extremely broad size-distribution with width from 16 to 230 nm and height from 1 to 42 nm are successfully obtained. Due to the energetic inhomogeneity across the laser spot, the modification of droplet as a function of irradiation intensity (IRIT) can be straightly investigated on one sample and the correlated mechanisms are clarified. Systematically, the laser resizing can be perceived as: for low irradiation level, laser heating only expands droplets to make mergences among them, so in this stage, the droplet size distribution is solely shifted to the large side; for high irradiation level, laser irradiation not only causes thermal expansion but also thermal evaporation of Ga atom which makes the size-shift move to both sides. All of these size-shifts on Ga-droplets can be strongly controlled by applying different laser IRIT that enables a more designable droplet epitaxy in the future.
A unified framework for the integration of multiple hierarchical clusterings or networks from multi-source data
Authors: Hulot Audrey , Laloë Denis , Jaffrézic Florence 
Published: August 2021

AbstractBackgroundIntegrating data from different sources is a recurring question in computational biology. Much effort has been devoted to the integration of data sets of the same type, typically multiple numerical data tables. However, data types are generally heterogeneous: it is a common place to gather data in the form of trees, networks or factorial maps, as these representations all have an appealing visual interpretation that helps to study grouping patterns and interactions between entities. The question we aim to answer in this paper is that of the integration of such representations.ResultsTo this end, we provide a simple procedure to compare data with various types, in particular trees or networks, that relies essentially on two steps: the first step projects the representations into a common coordinate system; the second step then uses a multi-table integration approach to compare the projected data. We rely on efficient and well-known methodologies for each step: the projection step is achieved by retrieving a distance matrix for each representation form and then applying multidimensional scaling to provide a new set of coordinates from all the pairwise distances. The integration step is then achieved by applying a multiple factor analysis to the multiple tables of the new coordinates. This procedure provides tools to integrate and compare data available, for instance, as tree or network structures. Our approach is complementary to kernel methods, traditionally used to answer the same question.ConclusionOur approach is evaluated on simulation and used to analyze two real-world data sets: first, we compare several clusterings for different cell-types obtained from a transcriptomics single-cell data set in mouse embryos; second, we use our procedure to aggregate a multi-table data set from the TCGA breast cancer database, in order to compare several protein networks inferred for different breast cancer subtypes.
Regional effect on the molecular clock rate of protein evolution in Eutherian and Metatherian genomes
Authors: Huttener Raf , Thorrez Lieven , Veld Thomas in‘t , Potter Barney , Baele Guy , Granvik Mikaela , Van Lommel Leentje , Schuit Frans 
Published: August 2021

Abstract
Background
Different types of proteins diverge at vastly different rates. Moreover, the same type of protein has been observed to evolve with different rates in different phylogenetic lineages. In the present study we measured the rates of protein evolution in Eutheria (placental mammals) and Metatheria (marsupials) on a genome-wide basis and we propose that the gene position in the genome landscape has an important influence on the rate of protein divergence.

Results
We analyzed a protein-encoding gene set (n = 15,727) common to 16 mammals (12 Eutheria and 4 Metatheria). Using sliding windows that averaged regional effects of protein divergence we constructed landscapes in which strong and lineage-specific regional effects were seen on the molecular clock rate of protein divergence. Within each lineage, the relatively high rates were preferentially found in subtelomeric chromosomal regions. Such regions were observed to contain important and well-studied loci for fetal growth, uterine function and the generation of diversity in the adaptive repertoire of immunoglobulins.

Conclusions
A genome landscape approach visualizes lineage-specific regional differences between Eutherian and Metatherian rates of protein evolution. This phenomenon of chromosomal position is a new element that explains at least part of the lineage-specific effects and differences between proteins on the molecular clock rates.