bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pseudo Random Bits Generation Using Chaotic Functions
Authors: Sukumaran Ajitha 
Published: January 2021

The telecommunication development technologies especially mobile and internet networks had extended the demand of information transmission. This results as a challenge to protect the information from the attackers. These require advanced encryption systems to protect the information during transmission. Cryptography is a basic information security measure that encodes messages to make them non-readable. During last two and a half decades, several studies of chaos based on cryptosystems had been developed. An application of discrete chaotic dynamical systems in pseudo random bit generation (PRBG) has been widely studied recently. In each study, proposed a separate pseudo random generation for a particular map running side-by-side in one of them or proposing a hybrid chaotic system used two different maps. The PRBG is generated by combining then comparing the output of both chaotic maps. This report will show the previous studies done in the different ways to generate pseudo random bit. Methods will be discussed in details for the algorithmic formula done for each system and what logical operations done for combination and comparing the output for each.The generated chaotic sequence is implemented for encrypting and decrypting the image and text message
Materiais lexicográficos e pedagógicos para a educação de surdos: revisitando a história e as produções
Authors: Carvalho Paulo Vaz de , Sofiato Cássia Geciauskas 
Published: January 2021

A educação de surdos teve seu início no século XVI e a partir deste marco histórico educadores de surdos de algumas partes do mundo se empenharam em elaborar materiais pedagógicos e, mais adiante, lexicográficos para o ensino da língua de sinais, apesar da abordagem oralista ter sido a precursora. Este estudo se apoia em marcos históricos e contextuais da educação de surdos e objetiva conhecer o percurso histórico da elaboração de materiais lexicográficos e pedagógicos para a educação de surdos, do século XVIII ao XXI e inventariar algumas produções de Portugal e do Brasil, não deixando de refletir sobre as concepções didático-pedagógicas intrínsecas às obras selecionadas. Para tal, realizou-se uma pesquisa bibliografica e documental em busca de obras de referência produzidas em diferentes períodos históricos e diferentes países, em especial, em Portugal e no Brasil. Com base nos estudos realizados destacamos que existe uma quantidade considerável de materiais lexicográficos, produzidos de forma impressa, em CD-Rom, DVD e, atualmente, online. Tais materiais mantém uma tradição iconográfica, independentemente de seu formato. Percebe-se por meio do estudo que os materiais pedagógicos para a educação de surdos sempre foram elaborados com o fito de incrementar a prática pedagógica.
Diagnostic utility of Sudoscan for detecting bortezomib-induced painful neuropathy: a study on 18 patients with multiple myeloma
Authors: Allegra Alessandro , Rizzo Vincenzo , Innao Vanessa , Alibrandi Angela , Mazzeo Anna , Leanza Rossana , Terranova Carmen , Gentile Luca , Girlanda Paolo , Allegra Andrea , Alonci Andrea , Musolino Caterina 
Published: January 2021

IntroductionIn the past few years, treatment of multiple myeloma has undergone a deep change for the employment of novel treatment comprising proteasome inhibitors. Bortezomib is a first-line drug in therapy of multiple myeloma. The onset of peripheral neuropathy is a dose-limiting collateral effect of the drug. This neuropathy is a distal symmetric neuropathy that affects both large and small fibers. Nerve conduction study (NCS) can be used for the diagnosis of bortezomib neuropathy, but this technique demonstrates alterations of the large nerve fibers. Sudoscan is a novel technique utilized to offer an evaluation of sudomotor function. The main objective of this study was to compare the sensitivity and diagnostic specificity of Sudoscan with respect to the nerve conduction study after bortezomib treatment.Material and methodsA total of 18 multiple myeloma patients were studied, 10 (55.5%) men and 8 (44.5%) women. Patients were analyzed at baseline and after 6 months of treatment with bortezomib. Subjects were submitted to nerve conduction study and electrochemical skin conductance evaluation with the Sudoscan device. Patients were also submitted to a clinical measure of pain and neuropathy.ResultsAt baseline NCS showed that only the mean sural SAP amplitude was below the 2SD lower limit of normal in 3 (16.7%) patients, while at same time we found an alteration of Sudoscan profiles in 2 (11.1%) patients. After 6 months of treatment, the NCS profiles were altered in 13 (72.2%) patients, and the Sudoscan profiles were modified in 11 (61.1%) subjects.ConclusionsOur results suggest that Sudoscan can be considered for the diagnosis of bortezomib-induced neuropathy. It is objective, reproducible, and surely easier than the traditional nerve conduction study. Sudoscan may be a useful help to manage the therapeutic interventions in multiple myeloma.
Improvement in age- and sex-dependent mortality in patients with atrial fibrillation between 2011 and 2016 – a nationwide retrospective study from Hungary
Authors: Kiss Zoltan , Márk László , Herczeg Béla , Aradi Dániel , Rokszin György , Fábián Ibolya , Horváth Krisztián , Wittmann István , Kiss Róbert , Dézsi Csaba , Csanádi Zoltán , Merkely Béla 
Published: January 2021

IntroductionAtrial fibrillation (AF) is associated with a higher risk of mortality; however, detailed analysis on the excess risk of death of patients diagnosed with AF compared to a non-AF population has not been carried out.Material and methodsIn our nationwide study, all AF patients were included if the I48 ICD-code was recorded twice in the Hungarian National Health Insurance Fund (NHIF) database between 2009 and 2016. The annual mortality rates and rate ratios of AF patients compared with the non-AF population (excess risk) were evaluated as well as the change of these parameters between 2011 and 2016.ResultsWe identified 88,848 to 123,255 females and 80,525 to 116,448 males between 2011 and 2016 in the database. The excess risk of AF compared to the non-AF population was higher in females: the rate ratio (RR) was 4.47 (95% CI: 4.35–4.58; p < 0.001) versus 3.34 (95% CI: 3.27–3.40; p < 0.001) in 2011. We found significant reductions in the mortality rates of the AF population between 2011 and 2016 (18.0% p = 0.037 in females and 17.7% p < 0.001 in males) while reductions in excess mortality were significant in the older age groups (age 60 years and above). Though the age-specific mortality rates were higher among the older population and in males, mortality RR was higher in the lower age groups and in females.ConclusionsBy implementing a novel methodology, we were able to express the mortality risk of the total AF population. We found relevant reduction in the age-standardised mortality rates in both sexes during this 6-year period, which exceeded the reduction of mortality rates in the non-AF population.
Predictive factors of failure to control bleeding and 6-week mortality after variceal hemorrhage in liver cirrhosis – a tertiary referral center experience
Authors: Matei Daniela , Crisan Dana , Procopet Bogdan , Groza Ioana , Furnea Bogdan , Levi Cristina , Tantau Marcel 
Published: January 2021

IntroductionMortality from variceal bleeding remains high despite the therapeutic progress in severe cirrhosis. Understanding the predictive factors of failure to control bleeding (FTB) and mortality will lead to better future therapies. Comorbidities are thought to be important prognostic factors for variceal bleeding. The aim of the study was to assess the factors associated with FTB and with 42-day mortality and to evaluate the influence of comorbidities on these patients’ prognosis.Material and methodsWe prospectively included in the study all consecutive patients with cirrhosis and variceal bleeding presenting to the emergency room and we followed them up over 6 weeks. CirCom score and Charlson index were used for the assessment of comorbidities.ResultsOf the 138 patients included in the study, 27 (19.5%) were considered to have FTB. Child C class (74.07% vs. 32.43%, p < 0.001), Meld score (20.5 vs. 16.00, p = 0.004) and creatinine level (1.04 vs. 0.81, p = 0.01) were associated with FTB, but only Child class was independently associated with FTB in multivariate analysis (OR = 2.94, p = 0.006). Mortality at 42 days (21.7%) was influenced by the severity of the disease assessed through Child class (76.66% vs. 30.55% – Child C, p < 0.001) and MELD score (21.00 vs. 16.00, p < 0.001). Creatinine level (1.00 vs. 0.7, p = 0.02) and acute kidney injury (26.66% vs. 7.40%, p = 0.009) were also prognostic factors for the 6-week mortality. Comorbidities did not influence the mortality (CirCom > 1 (16.7% vs. 21.3%, p = 0.76) or Charlson index > 4 (36% vs. 47.2%, p = 0.41).ConclusionsThe severity of cirrhosis is an important prognostic factor for FTB and 42-day mortality. Identifying the factors associated with early mortality may help selecting patients needing more than conventional therapy.
High-resolution BTA spectrograph auxiliary devices (functions and control)
Authors: Верич Ю.Б. , Панчук В.Е. , Юшкин М.В. , Якопов Г.В. 
Published: January 2021

Отмечены устройства и функции спектрографа высокого разрешения 6-метрового телескопа БТА, охваченные программой улучшения параметров прибора. Программа выполняется по плану УНУ и плану развития средств наземной поддержки проекта «Спектр-УФ».
The devices and functions of the high-resolution spectrograph of the 6-meter BTA telescope covered by the program for improving the instrument parameters are noted. The program is implemented according to the UNU plan and the plan for the development of ground support facilities for the Spektr-UV project.
Photometric data analysis: the estimation of interstellar extinction
Authors: Малков О.Ю. , Длужневская О.Б. , Жуков А.О. , Захаров А.И. , Ковалева Д.А. , Миронов А.В. , Сичевский С.Г. , Скворцов Н.А. , Ступников С.А. , Сытов А.Ю. 
Published: January 2021

Учет межзвездного поглощения - необходимый этап в процессе параметризации звезд по многоцветной фотометрии. Мы анализируем опубликованные законы межзвездного поглощения и обсуждаем возможность оценки величины межзвездного поглощения для фотометрических полос современных больших обзоров.
Taking into account interstellar extinction is the necessary procedure in the process of parameterization of stars from multicolor photometry. We analyze published interstellar extinction laws and discuss the possibility of assessing the interstellar extinction in photometric bands of modern large surveys.
The search for non-coevality among components of visual binaries
Authors: Малков О.Ю. 
Published: January 2021

В данной работе предпринимается попытка обнаружить среди визуальных двойных звезд системы с компонентами разного возраста. Для этого сравниваются спектральные классы компонентов, а также их массы, оцененные из этой спектральной классификации. Применение этого простого метода к Каталогу орбитальных двойных звезд ORB6 позволило обнаружить тринадцать систем, у которых менее массивный компонент выглядит более проэволюционировавшим (т.е., два компонента, по-видимому, имеют разный возраст). Для уточнения результатов требуются дальнейшие исследования.
The aim of this study is to find non-coeval pairs among visual binaries. For indication of non-coevality we compare spectral classes and masses of the components, estimated from the spectral classification. Applying this simple method to the Catalogue of orbital binaries ORB6, we found thirteen systems where less massive component is more evolved, and, consequently, the components are probably non-coeval. To prove non-coevality one needs a detailed investigation of the candidates.
McRALI: a Monte Carlo high-spectral-resolution lidar and Doppler radar simulator for three-dimensional cloudy atmosphere remote sensing
Authors: Szczap Frédéric , Alkasem Alaa , Mioche Guillaume , Shcherbakov Valery , Cornet Céline , Delanoë Julien , Gour Yahya , Jourdan Olivier , Banson Sandra , Bray Edouard 
Published: January 2021

Abstract. The aim of this paper is to present the Monte Carlo code McRALI that
provides simulations under multiple-scattering regimes of polarized high-spectral-resolution (HSR) lidar and Doppler radar observations for
a three-dimensional (3D) cloudy atmosphere. The effects of nonuniform beam
filling (NUBF) on HSR lidar and Doppler radar signals related to the
EarthCARE mission are investigated with the help of an academic 3D
box cloud characterized by a single isolated jump in cloud optical depth,
assuming vertically constant wind velocity. Regarding Doppler radar signals,
it is confirmed that NUBF induces a severe bias in velocity estimates. The
correlation of the NUBF bias of Doppler velocity with the horizontal
gradient of reflectivity shows a correlation coefficient value around 0.15 m s−1 (dBZ km-1)-1, close to that given in the scientific
literature. Regarding HSR lidar signals, we confirm that multiple-scattering
processes are not negligible. We show that NUBF effects on molecular,
particulate, and total attenuated backscatter are mainly due to unresolved
variability of cloud inside the receiver field of view and, to a lesser
extent, to the horizontal photon transport. This finding gives some insight
into the reliability of lidar signal modeling using independent column
approximation (ICA).
The zone of influence: matching sea level variability from coastal altimetry and tide gauges for vertical land motion estimation
Authors: Oelsmann Julius , Passaro Marcello , Dettmering Denise , Schwatke Christian , Sánchez Laura , Seitz Florian 
Published: January 2021

Abstract. Vertical land motion (VLM) at the coast is a substantial contributor to relative sea level change. In this work, we present a refined method for its
determination, which is based on the combination of absolute satellite altimetry (SAT) sea level measurements and relative sea level changes
recorded by tide gauges (TGs). These measurements complement VLM estimates from the GNSS (Global Navigation Satellite System) by increasing their spatial
coverage. Trend estimates from the SAT and TG combination are particularly sensitive to the quality and resolution of applied altimetry data as well as
to the coupling procedure of altimetry and TGs. Hence, a multi-mission, dedicated coastal along-track altimetry dataset is coupled with
high-frequency TG measurements at 58 stations. To improve the coupling procedure, a so-called “zone of influence” (ZOI) is defined, which confines
coherent zones of sea level variability on the basis of relative levels of comparability between TG and altimetry observations. Selecting 20 %
of the most representative absolute sea level observations in a 300 km radius around the TGs results in the best VLM estimates in terms of
accuracy and uncertainty. At this threshold, VLMSAT-TG estimates have median formal uncertainties of
0.58 mm yr−1. Validation against GNSS VLM estimates yields a root mean square (rmsΔVLM) of VLMSAT-TG and
VLMGNSS differences of 1.28 mm yr−1, demonstrating the level of accuracy of our approach. Compared to a reference
250 km radius selection, the 300 km zone of influence improves trend accuracies by 15 % and uncertainties by 35 %. With
increasing record lengths, the spatial scales of the coherency in coastal sea level trends increase. Therefore, the relevance of the ZOI for
improving VLMSAT-TG accuracy decreases. Further individual zone of influence adaptations offer the prospect of bringing the accuracy of
the estimates below 1 mm yr−1.
Spectral characterization, radiative forcing and pigment content of coastal Antarctic snow algae: approaches to spectrally discriminate red and green communities and their impact on snowmelt
Authors: Khan Alia L. , Dierssen Heidi M. , Scambos Ted A. , Höfer Juan , Cordero Raul R. 
Published: January 2021

Abstract. Here, we present radiative forcing (RF) estimates by snow
algae in the Antarctic Peninsula (AP) region from multi-year measurements of
solar radiation and ground-based hyperspectral characterization of red and
green snow algae collected during a brief field expedition in austral summer 2018. Our analysis includes pigment content from samples at three bloom
sites. Algal biomass in the snow and albedo reduction are well-correlated
across the visible spectrum. Relative to clean snow, visibly green patches
reduce snow albedo by ∼40 % and red patches by
∼20 %. However, red communities absorb considerably more
light per milligram of pigment compared to green communities, particularly in green
wavelengths. Based on our study results, it should be possible to
differentiate red and green algae using Sentinel-2 bands in blue, green and
red wavelengths. Instantaneous RF averages were double for green (180 W m−2) vs. red communities (88 W m−2), with a maximum of 228 W m−2. Based on multi-year solar radiation measurements at Palmer
Station, this translated to a mean daily RF of ∼26 W m−2
(green) and ∼13 W m−2 (red) during peak growing season
– on par with midlatitude dust attributions capable of advancing snowmelt.
This results in ∼2522 m3 of snow melted by
green-colored algae and ∼1218 m3 of snow melted by
red-colored algae annually over the summer, suggesting snow algae play a
significant role in snowmelt in the AP regions where they occur. We suggest
impacts of RF by snow algae on snowmelt be accounted for in future estimates
of Antarctic ice-free expansion in the AP region.
Publieke en private handhaving van het kartelverbod – een convergente toepassing van dezelfde norm?
Authors: Römkens Ellen , Prompers Anke , Bouman Aron , Kuijper Marc , Lamberti Reinier 
Published: January 2021

Publieke en private handhaving van het kartelverbod – een convergente toepassing van dezelfde norm?
In dit tweeluik zal aan de hand van rechtspraak worden geïnventariseerd of ten aanzien van (a) het bewijzen van kartelafspraken en (b) de wijze van toerekening, we op het eerste oog kunnen spreken van een convergente toepassing van het kartelverbod door de Nederlandse bestuursrechter en de civiele rechter.
Het CK Telecoms-arrest: vier is (g)een magisch getal
Authors: van Ginneken Pepijn , Béquet Gaëlle 
Published: January 2021

Het CK Telecoms-arrest: vier is (g)een magisch getal
Bespreking van het CK Telecoms-arrest van het Gerecht over de SIEC-test uit de Concentratieverordening.
Cover Crop Residue Management for Effective Use of Mineralized Nitrogen in Greenhouse Tomato Production
Authors: A. Muchanga Rafael , Araki Hajime 
Published: January 2021

Adequate residue management may enhance the benefits of cover crops on greenhouse tomato (Solanum lycopersicum L.) productivity, soil N pool, N cycling, and environmental quality. Regardless of management, cover crops may maintain or increase soil N storage at 10 cm depth compared with bare fallow. Cover crops may also enhance microbial biomass N, as a result, soil N availability may increase with cover crops, except rye (Secale cereale L.), more so with hairy vetch (Vicia villosa R.; HV) incorporation than HV mulch and the biculture of HV and rye. Residual inorganic N at surface soil may increase with cover crops, more so with HV and rye monocultures than the biculture. Tomato yield may increase more with the biculture than either HV incorporation or HV mulch because of an efficient residue-N use by tomatoes. The biculture may change the N release pattern from both cover crops: rye of the biculture may release more N than the monoculture, while HV may release a similar or more N in the late than in the early period of tomato growth. With adequate seeding HV/rye ratio (2/1), biculture may maintain or increase soil N storage, increase N cycling and tomato yield, and improve environmental quality.
Proto-Transmedial Narrative Structures: Lewis Carroll’s A Tangled Tale
Authors: López-Varela Azcárate Asunción 
Published: January 2021

This paper explores A Tangled Tale, a collection of mathematical puzzles that Charles Ludwick Dodgson serialized in The Monthly Packet between 1880 and 1885. The hybrid narrative patterns that present mathematical questions by means of fictional storytelling are a unique form of scientific knowledge dissemination that anticipates the breakdown of narrative linearity and the emergence of multiform formats present in transmedia. An inquiry into the Rule of Three and infinite regress tie the knots of a tale that highlights crucial insights on the algorithmic foregrounding of the strategies of transmedia design. Such strategies can be seen as the intersection of narrative as well as mathematical expertise that turn the media galaxy into a cosmic affair.
Evaluation of an online case-based learning module that integrates basic and clinical sciences
Authors: Major Christine A. , Burnham Kara D. , Brown Kathryn A. , Lambert Chad D. , Nordeen Jenny M. , Takaki Leslie A.K. 
Published: January 2021

Objective
Case-based online modules can be created to integrate basic science and clinical science knowledge. An integrated module was designed, implemented, and evaluated for student performance and perception.

Methods
Five faculty members from both basic science and clinical education departments developed an integrative, online, case-based learning module. The case involved a patient with facial asymmetry, and the student was led to a diagnosis of Bell's palsy. Material on Bell's palsy was presented in an integrated module in addition to traditional lecture for a fall cohort of students and was presented only in traditional lecture format to a winter cohort of students. Both cohorts were given the same 5 multiple-choice questions on Bell's palsy as part of a midterm exam, and the scores of these test questions were compared between cohorts. A 13-question, mixed-methods survey was given to the fall cohort to determine their perceptions of the module and their learning.

Results
Multiple-choice test question performance was equivalent between cohorts for the Bell's palsy questions (fall 2018: mean = 3.68, SD = 0.99; winter 2019: mean = 3.51, SD = 0.92). Perception survey responses indicated that students felt positively about the integrated module and that it was applicable and helpful with improving, reinforcing, and integrating basic science and clinical knowledge.

Conclusion
This study provides evidence that case-based integrated modules are perceived favorably by students and result in similar exam question performance. They can be a useful tool to help students connect information throughout the chiropractic curriculum.
School meals and quality of household food acquisitions
Authors: Cleary Rebecca , Bonanno Alessandro , Ghazaryan Armen , Bellows Laura , McCloskey Morgan 
Published: January 2021

AbstractSchool meals provide nourishment to a large portion of US schoolchildren. Research has examined the relationship between the consumption of school meals and the quality of schoolchildren's diets, with little emphasis on studying spillovers at the household level. Using National Food Acquisition and Purchase Survey data and unconditional quantile regression, we study the relationship between a household's quality of food‐at‐home acquisitions and the number of school meals acquired, subsampling households by their Supplemental Nutrition Assistance Program participation status. We do not find strong evidence supporting beneficial spillovers of school meals on a household's quality of food‐at‐home acquisitions.JEL CLASSIFICATIONC31; D12; I14; Q18