bluuebunny/crossref_metadata_2025_split huggingface dataset:
Erasure decoding of convolutional codes using first-order representations
Authors: Lieb Julia , Rosenthal Joachim 
Published: June 2021

AbstractIt is well known that there is a correspondence between convolutional codes and discrete-time linear systems over finite fields. In this paper, we employ the linear systems representation of a convolutional code to develop a decoding algorithm for convolutional codes over the erasure channel. In this kind of channel, which is important due to its use for data transmission over the Internet, the receiver knows if a received symbol is correct. We study the decoding problem using the state space description of a convolutional code, and this provides in a natural way additional information. With respect to previously known decoding algorithms, our new algorithm has the advantage that it is able to reduce the decoding delay as well as the computational effort in the erasure recovery process. We describe which properties a convolutional code should have in order to obtain a good decoding performance and illustrate it with an example.
The smartphone as a tool to screen for scoliosis, applicable by everyone
Authors: van West H. M. , Herfkens J. , Rutges J. P. H. J. , Reijman M. 
Published: June 2021

Abstract
Purpose (main purposes and research question)
The purpose of this study is to assess the accuracy and precision of the smartphone with application and casing (Scolioscreen) compared to the Scoliometer.

Methods
The Axial Trunk Rotation (ATR) was measured in adolescent scoliosis patients visiting the outpatient clinic while performing the Adam Forward Bending Test. The Scolioscreen measurements were performed by the orthopedic surgeon and a parent. They were compared to the measurement with the Scoliometer by the orthopedic surgeon, the gold standard. The accuracy was determined with the Pearson’s correlation coefficient, and precision was determined by assessing the intra- and inter-variability with the intra-class correlation coefficient (ICC).

Results
Fifty patients with adolescent idiopathic scoliosis (44 girls) were included with a mean age of 14.1 years and a mean Cobb angle of 38.5°. The accuracy of both the parents and orthopedic surgeon was excellent with a Pearson correlation coefficient of 0.92 and 0.97, respectively. All the ICC’s, both intra- and inter-observer, were over 0.92 demonstrating excellent precision.

Conclusion
This study confirms the accuracy and precision of the Scolioscreen when measuring the ATR on patients with AIS. Therefore, the Scoliometer can be replaced by the more easily available Scolioscreen which can be used by both physician and parents.
Comparison of spatial orientation skill between real and virtual environment
Authors: Pastel S. , Bürger D. , Chen C. H. , Petri K. , Witte K. 
Published: June 2021

AbstractVirtual reality (VR) is a promising tool and is increasingly used in many different fields, in which virtual walking can be generalized through detailed modeling of the physical environment such as in sports science, medicine and furthermore. However, the visualization of a virtual environment using a head-mounted display (HMD) differs compared to reality, and it is still not clear whether the visual perception works equally within VR. The purpose of the current study is to compare the spatial orientation between real world (RW) and VR. Therefore, the participants had to walk blindfolded to different placed objects in a real and virtual environment, which did not differ in physical properties. They were equipped with passive markers to track the position of the back of their hand, which was used to specify each object’s location. The first task was to walk blindfolded from one starting position to different placed sport-specific objects requiring different degrees of rotation after observing them for 15 s (0°, 45°, 180°, and 225°). The three-way ANOVA with repeated measurements indicated no significant difference between RW and VR within the different degrees of rotation (p > 0.05). In addition, the participants were asked to walk blindfolded three times from a new starting position to two objects, which were ordered differently during the conditions. Except for one case, no significant differences in the pathways between RW and VR were found (p > 0.05). This study supports that the use of VR ensures similar behavior of the participants compared to real-world interactions and its authorization of use.
Prevalence of human papillomavirus detection in ovarian cancer: a meta-analysis
Authors: Cherif Soumia , Amine Abdessamad , Thies Sarah , Taube Eliane T. , Braicu Elena Ioana , Sehouli Jalid , Kaufmann Andreas M. 
Published: June 2021

AbstractWe conducted a meta-analysis of published data to update and estimate the prevalence of HPV in ovarian cancer. A comprehensive literature search was performed according to the PRISMA guidelines. Eligible articles published from 1989 until 2020 by searching Web of Sciences, Pubmed, Embase, and the Cochrane Library Central databases were gathered. A pooled estimation of HPV prevalence with a 95% confidence interval (CI) was calculated based on a random effect model. Quantitative assessment of heterogeneity was explored using Cochrane test and I2. Additionally, publication bias, sensitivity, meta-regression, and subgroup analyses were also performed. Twenty-nine studies involving 2280 patients with ovarian cancer were included. The statistical heterogeneity was high (I2 = 88%, P<0.0001). The pooled prevalence of HPV in ovarian cancer cases was 15.9% (95% CI, 11–22). In subgroup analyses, the highest prevalence of HPV was reported by studies from Asia (30.9%; 95% CI, 20–44) and Eastern Europe (29.3%; 95% CI, 4.4–78). Furthermore, the most frequently detected HPV genotype was HPV16 (54%; 95% CI, 27.9–55), followed by HPV18 (23.2%; 95% CI, 18.8–28.2). Our meta-analysis suggests a great difference in the prevalence of HPV detected in ovarian cancer by different studies, which is not seen in strongly HPV-associated cancers such as cervical cancer. However, the prevalence varied markedly by geographic region. Considering the substantial heterogeneity found, more studies with control groups and precise assays measuring HPV mRNA expression are needed to further evaluate the link and causative aetiology between HPV and ovarian cancer.
Country-by-Country Reporting: A Step Towards Unitary Taxation?
Authors: Viegas Miguel , Dias António 
Published: June 2021

AbstractMultinational companies are now obliged to deliver an annual report to the tax authorities with information disaggregated by country (country-by-country reporting) in order to show where the assets and workers are allocated, how profits are distributed and to whom taxes are paid. Unfortunately, these reports are not made public in the European Union, thus preventing public scrutiny about the strategies used by multinational companies to displace profits to tax havens. This article applies the Unitary Taxation regime proposed by the European Commission to US multinational companies. The results confirm a strong bias among the profits distribution towards countries with lower corporate tax rates. Likewise, they confirm the capacity of the Unitary Taxation to promote a fairer distribution of tax revenues. These results can be a good contribution to the current Portuguese presidency of the European Union, which managed to gather important support to move forward with the European public country-by-country reporting directive.
Stress level effect on mobility of dry granular flows of angular rock fragments
Authors: Cagnoli B. 
Published: June 2021

AbstractGranular flows of angular rock fragments such as rock avalanches and dense pyroclastic flows are simulated numerically by means of the discrete element method. Since large-scale flows generate stresses that are larger than those generated by small-scale flows, the purpose of these simulations is to understand the effect that the stress level has on flow mobility. The results show that granular flows that slide en mass have a flow mobility that is not influenced by the stress level. On the contrary, the stress level governs flow mobility when granular flow dynamics is affected by clast agitation and collisions. This second case occurs on a relatively rougher subsurface where an increase of the stress level causes an increase of flow mobility. The results show also that as the stress level increases, the effect that an increase of flow volume has on flow mobility switches sign from causing a decrease of mobility at low stress level to causing an increase of mobility at high stress level. This latter volume effect corresponds to the famous Heim’s mobility increase with the increase of the volume of large rock avalanches detected so far only in the field and for this reason considered inexplicable without resorting to extraordinary mechanisms. Granular flow dynamics is described in terms of dimensionless scaling parameters in three different granular flow regimes. This paper illustrates for each regime the functional relationship of flow mobility with stress level, flow volume, grain size, channel width, and basal friction.
Evolution of the seismic vulnerability of masonry buildings based on the damage data from L'Aquila 2009 event
Authors: Del Gaudio Carlo , Scala Santa Anna , Ricci Paolo , Verderame Gerardo M. 
Published: June 2021

AbstractThe purpose of this study is the analysis of vulnerability trends, with particular emphasis to the evolution of the seismic behaviour of masonry buildings over the years due to the improvements in construction practices and to the enhancement of building materials over the years, also related to the subsequent enactment of seismic prescriptions. To this aim, residential masonry buildings damaged after the 2009 L'Aquila earthquake are considered, coming from the online platform Da.D.O. (Database di Danno Osservato, Database of Observed Damage) recently released from the Italian Department of Civil Protection. General features of all the parameters available from the original database are thoroughly analysed, a selection of which is used for vulnerability analysis, namely the period of construction and the design type, the presence of structural interventions, the type of horizontal structure. Vulnerability curves are obtained through an optimization technique, minimizing the deviation between observed and predicted damage. PGA from ShakeMap is used for ground motion characterization. Damage levels defined according to the European Macroseismic Scale are considered, obtained from the observed damage for vertical structures collected during the inspections. Vulnerability curves are firstly obtained as a function of period of construction and horizontal structural types, limited to the irregular layout and bad quality vertical type only, highlighting their clear influence on seismic behaviour. Lastly, the effectiveness of retrofit intervention is evaluated comparing the vulnerability curves for strengthened masonry buildings compared to those not subjected to any retrofit interventions.
Rate constants of dichloride radical anion reactions with molecules of environmental interest in aqueous solution: a review
Authors: Wojnárovits László , Takács Erzsébet 
Published: June 2021

AbstractNatural waters, water droplets in the air at coastal regions and wastewaters usually contain chloride ions (Cl-) in relatively high concentrations in the milimolar range. In the reactions of highly oxidizing radicals (e.g.,•OH,•NO3, or SO4•-) in the nature or during wastewater treatment in advanced oxidation processes the chloride ions easily transform to chlorine containing radicals, such as Cl•, Cl2•-, and ClO•. This transformation basically affects the degradation of organic molecules. In this review about 400 rate constants of the dichloride radical anion (Cl2•-) with about 300 organic molecules is discussed together with the reaction mechanisms. The reactions with phenols, anilines, sulfur compounds (with sulfur atom in lower oxidation state), and molecules with conjugated electron systems are suggested to take place with electron transfer mechanism. The rate constant is high (107–109M-1s-1) when the reduction potential the one-electron oxidized species/molecule couple is well below that of the Cl2•-/2Cl-couple.
Approximating the product knapsack problem
Authors: Pferschy Ulrich , Schauer Joachim , Thielen Clemens 
Published: June 2021

AbstractWe consider the product knapsack problem, which is the variant of the classical 0-1 knapsack problem where the objective consists of maximizing the product of the profits of the selected items. These profits are allowed to be positive or negative. We present the first fully polynomial-time approximation scheme for the product knapsack problem, which is known to be weakly -hard. Moreover, we analyze the approximation quality achieved by a natural extension of the classical knapsack greedy procedure to the product knapsack problem.
Workforce participation in relation to cancer diagnosis, type and stage: Australian population-based study of 163,556 middle-aged people
Authors: Thandrayen Joanne , Joshy Grace , Stubbs John , Bailey Louise , Butow Phyllis , Koczwara Bogda , Laidsaar-Powell Rebekah , Rankin Nicole M. , Beckwith Katie , Soga Kay , Yazidjoglou Amelia , Bin Sayeed Muhammad Shahdaat , Canfell Karen , Banks Emily 
Published: June 2021

Abstract
Purpose
To quantify the relationship of cancer diagnosis to workforce participation in Australia, according to cancer type, clinical features and personal characteristics.

Methods
Questionnaire data (2006–2009) from participants aged 45–64 years (n=163,556) from the population-based 45 and Up Study (n=267,153) in New South Wales, Australia, were linked to cancer registrations to ascertain cancer diagnoses up to enrolment. Modified Poisson regression estimated age- and sex-adjusted prevalence ratios (PRs) for non-participation in the paid workforce—in participants with cancer (n=8,333) versus without (n=155,223), for 13 cancer types.

Results
Overall, 42% of cancer survivors and 29% of people without cancer were out of the workforce (PR=1.18; 95%CI=1.15–1.21). Workforce non-participation varied substantively by cancer type, being greatest for multiple myeloma (1.83; 1.53–2.18), oesophageal (1.70; 1.13–2.58) and lung cancer (1.68; 1.45–1.93) and moderate for colorectal (1.23; 1.15–1.33), breast (1.11; 1.06–1.16) and prostate cancer (1.06; 0.99–1.13). Long-term survivors, 5 or more years post-diagnosis, had 12% (7–16%) greater non-participation than people without cancer, and non-participation was greater with recent diagnosis, treatment or advanced stage. Physical disability contributed substantively to reduced workforce participation, regardless of cancer diagnosis.

Conclusions
Cancer survivors aged 45–64 continue to participate in the workforce. However, participation is lower than in people without cancer, varying by cancer type, and is reduced particularly around the time of diagnosis and treatment and with advanced disease.

Implications for Cancer Survivors
While many cancer survivors continue with paid work, participation is reduced. Workforce retention support should be tailored to survivor preferences, cancer type and cancer journey stage.
Well-Differentiated Liposarcoma of the Hypopharynx Exhibiting Myxoid Liposarcoma-like Morphology with MDM2 and DDIT3 Co-Amplification
Authors: Murshed Khaled A. , Abo Samra Hayan , Ammar Adham 
Published: June 2021

AbstractWell-differentiated liposarcoma (WDL) is one of the most common soft tissue sarcomas in adults. It has a predilection for middle-aged males and arises in deep-seated locations such as retroperitoneum, mediastinum, and spermatic cord. Its occurrence in young individuals at the hypopharyngeal region is an exceedingly rare event. Myxoid liposarcoma (ML)-like changes can seldom occur in some cases of WDL, which makes the diagnosis of WDL more challenging. Amplification of DDIT3 gene in a subset of cases of WDL has shown to be associated with such unique morphology. Herein, we present a case of a 36-year-old gentleman who presented with difficulty in breathing and swallowing for 3 months duration. CT scan of the neck revealed a lesion along the posterior wall of the hypopharynx measuring 3.5 cm. Histopathologic examination revealed a tumor composed of lobules of oval to spindle cells in a prominent myxoid stroma with delicate chicken-wire vasculature. In the vicinity, there were lobules composed of variably sized adipocytes separated by thick fibrous septa that contains atypical hyperchromatic spindle cells. By immunohistochemistry, the tumor cells in both components were immunoreactive for CDK4, but negative for MDM2. Fluorescence in-situ hybridization (FISH) confirmed the presence of MDM2 gene amplification. There was no evidence of FUS-DDIT3 gene rearrangement, however, DDIT3 gene was also amplified. The diagnosis of well-differentiated liposarcoma with prominent myxoid stroma was rendered. This is the first documentation of WDL with ML-like morphology harboring co-amplification of MDM2 and DDIT3 in the hypopharynx.
Taking Time Seriously: Biographical Circumstance and Immigrant Labor Integration Experience
Authors: Gubrium Erika , Leirvik Mariann Stærkebye 
Published: June 2021

AbstractThe article offers a re-conceptualization of the labor integration process which takes temporality into account as a relevant feature that, rather than following patterned frames of reference, is actively referenced through narratively and socially constructed formations of understanding. The European policy strategy regarding immigrants has shifted in the past decades from a focus on social integration to a predominant focus on labor market integration, due in part to the relatively high unemployment rates of immigrants entering and migrating within Europe. A personalized approach used throughout Europe to “empower” and move immigrants into the labor market has not been realized in practice. Norway, a “best case scenario” for a more personalized approach through comprehensive labor integration and activation measures, has also had limited success with the sustained labor integration of immigrants. We suggest that a source of the problem lies in the conceptualization of labor integration, which, in contrast to true personalization, follows a patterned notion of the process. We argue that such a conceptualization does not provide the means to explore and untangle potentially significant processes and mechanisms relevant to the labor integration experience. We introduce the concept of biographical circumstance to demonstrate how immigrant participants in a Norwegian labor activation program draw on different references from their personal histories as they make meaning of their labor integration—and how meaning-making is dialectically shaped and delimited by the structural effects of changing policy opportunities, rules, and regulations. We conducted 14 qualitative interviews with immigrants involved in the Norwegian Qualification Program, a national labor activation program. We select four participants to present as illustrative cases of biographical circumstance and meaning making. The four differently make meaning of and respond to their labor integration experiences through active reference to specific personal histories and changing policy encounters over time. The data demonstrate that accounting for biographical circumstance enables us to better understand the actions, rationalizations, and motivations of immigrants participating in labor integration and activation measures.
Typifications and combinations in the Ebenaceae of Peninsular Malaysia and Singapore
Authors: de Kok R. P. J. , Puglisi C. 
Published: June 2021

SummaryMany of the current and synonymous names applied to the species of Diospyros L. (Ebenaceae) from Peninsular Malaysia and Singapore lack a type. Here we designate lectotypes and two neotypes and establish the correct combinations for the taxa belonging to the species hitherto known as Diospyros pilosanthera.
Recognizing Indigenous peoples’ and local communities’ rights and agency in the post-2020 Biodiversity Agenda
Authors: Reyes-García Victoria , Fernández-Llamazares Álvaro , Aumeeruddy-Thomas Yildiz , Benyei Petra , Bussmann Rainer W. , Diamond Sara K. , García-del-Amo David , Guadilla-Sáez Sara , Hanazaki Natalia , Kosoy Nicolas , Lavides Margarita , Luz Ana C. , McElwee Pamela , Meretsky Vicky J. , Newberry Teresa , Molnár Zsolt , Ruiz-Mallén Isabel , Salpeteur Matthieu , Wyndham Felice S. , Zorondo-Rodriguez Francisco , Brondizio Eduardo S. 
Published: June 2021

AbstractThe Convention on Biological Diversity is defining the goals that will frame future global biodiversity policy in a context of rapid biodiversity decline and under pressure to make transformative change. Drawing on the work of Indigenous and non-Indigenous scholars, we argue that transformative change requires the foregrounding of Indigenous peoples’ and local communities’ rights and agency in biodiversity policy. We support this argument with four key points. First, Indigenous peoples and local communities hold knowledge essential for setting realistic and effective biodiversity targets that simultaneously improve local livelihoods. Second, Indigenous peoples’ conceptualizations of nature sustain and manifest CBD’s 2050 vision of “Living in harmony with nature.” Third, Indigenous peoples’ and local communities’ participation in biodiversity policy contributes to the recognition of human and Indigenous peoples’ rights. And fourth, engagement in biodiversity policy is essential for Indigenous peoples and local communities to be able to exercise their recognized rights to territories and resources.
The Applied Sports Science and Medicine of Netball: A Systematic Scoping Review
Authors: Whitehead Sarah , Weakley Jonathon , Cormack Stuart , Alfano Helen , Kerss Jim , Mooney Mitch , Jones Ben 
Published: June 2021

AbstractBackgroundNetball is the one of the most popular women’s sports in the world. Since gaining professional status in 2008 there has been a rapid growth in research in the applied sports science and medicine of the sport. A scoping review of the area would provide practitioners and researchers with an overview of the current scientific literature to support on-court performance, player welfare and reduce injury.ObjectiveThe primary objective was to identify the current research on the applied sports science and medicine of netball. Additionally, the article provides a brief summary of the research in each topic of sports science and medicine in netball and identifies gaps in the current research.MethodsSystematic searches of PubMed, SPORTDiscus, MEDLINE and CINAHL were undertaken from earliest record to Dec 2020 and reference lists were manually searched. The PRISMA-ScR protocol was followed. Studies were eligible for inclusion if they investigated netball as a sport or the applied sport science and medicine of netball athletes.Results962 studies were identified in the initial search, 150 of which met the inclusion criteria. Injury was the most highly investigated sport science and medicine topic (n = 45), followed by physical qualities (n = 37), match characteristics (n = 24), biomechanics (n = 15), psychology (n = 13), fatigue and recovery (n = 9), training load (n = 4) and nutrition (n = 3). A range of cohorts were used from school to elite and international standards. All cohorts were female netballers, except for one study. A rapid growth in studies over recent years was demonstrated with 65% of studies published in the last decade. There still remains gaps in the literature, with a low evidence base for nutrition, training load and fatigue and recovery.ConclusionThis scoping review summarises the current evidence base and key findings that can be used in practice to enhance the applied sport science and medical support to netball athletes across a range of playing standards, and support the growth of the sport. It is evident that netball as a sport is still under-researched.