bluuebunny/crossref_metadata_2025_split huggingface dataset:
High-efficiency transmissive invisibility cloaking based on all-dielectric multilayer frame structure metasurfaces
Authors: Shi Yan , Li Meng , Gui Xincui , Li Chenxia , Jing Xufeng , Hong Zhi 
Published: April 2021

Metasurfaces provide a completely new path to realize the cloaking effect due to their excellent electromagnetic wavefront manipulation. However, most previous metasurfaces realized cloaking by using phase compensation, which is limited by the reflection phase formula and can be used only for reflection mode. We use the generalized Snell’s law to propose a free-space transmission stealth device, consisting of multilayer all-dielectric metasurfaces. We utilize three phase gradient all-dielectric silicon metasurfaces that, respectively, play the role of beam splitting, steering, and collection to guide incident waves around the object, thereby forming an ideal stealth area in free space. All-dielectric metasurfaces can greatly reduce transmission loss and enhance efficiency to a large extent. The advantage of choosing an all-dielectric material is that it is easy to process and more suitable in practice. Simulation results of the near field and far field prove that this cloak has a cloaking effect at 1 THz. Our work opens up a new path for transmissive stealth.
High-responsivity broadband photodetection of an ultra-thin In2S3/CIGS heterojunction on steel
Authors: Zeng Xi , Lontchi Jackson , Zhukova Maria , Fourdrinier Lionel , Qadir Israr , Ren Yi , Niemi Esko , Li Guoli , Flandre Denis 
Published: April 2021

C
u

(

I
n

,

G
a

)

S

e

2

(CIGS) is a promising light harvesting material for large-area broadband photodetection, but it has been rarely studied up to now. Here an In2S3/CIGS heterojunction photodiode on steel is shown to be highly broadband photo-sensitive, with a photoresponsivity over 0.8 A/W, an external quantum efficiency over 100%, and a detectivity over 8×1010 Jones from 505 to 910nm under a reverse bias of 1 V. Moreover, the CIGS photodiode exhibits an outstanding weak light detection ability (i.e., at light power density of

20

µ

W

/

c

m

2

), reaching a record responsivity of 2.06 A/W, an impressive EQE of 293%, and a good detectivity of

2.3

×

1

0

11

Jones at 870 nm under 1 V reverse bias. Importantly, the CIGS photodiode, working as a self-powered photodetector, under 0 V, shows a record detectivity of

∼

3.4

×

1

0

12

Jones with a high responsivity of

∼

0.44

A

/

W

and a high EQE of

∼

63

%

, at 870 nm.
Atrial fibrillation and comorbidities: Clinical characteristics and antithrombotic treatment in GLORIA-AF
Authors: Kozieł Monika , Teutsch Christine , Halperin Jonathan L. , Rothman Kenneth J. , Diener Hans-Christoph , Ma Chang-Sheng , Marler Sabrina , Lu Shihai , Gurusamy Venkatesh K. , Huisman Menno V. , Lip Gregory Y. H. ,   on behalf of the GLORIA-AF Investigators
Published: April 2021

Background
Patients with AF often have multimorbidity (the presence of ≥2 concomitant chronic conditions).

Objective
To describe baseline characteristics, patterns of antithrombotic therapy, and factors associated with oral anticoagulant (OAC) prescription in patients with AF and ≥2 concomitant, chronic, comorbid conditions.

Methods
Phase III of the GLORIA-AF Registry enrolled consecutive patients from January 2014 through December 2016 with recently diagnosed AF and CHA2DS2-VASc score ≥1 to assess the safety and effectiveness of antithrombotic treatment.

Results
Of 21,241 eligible patients, 15,119 (71.2%) had ≥2 concomitant, chronic, comorbid conditions. The proportions of patients with multimorbidity receiving non-vitamin K antagonist oral anticoagulants (NOACs) and vitamin K antagonists (VKA) were 60.2% and 23.6%, respectively. The proportion with paroxysmal AF was 57.0% in the NOAC group and 45.4% in the VKA group. Multivariable log-binomial regression analysis found the following factors were associated with no OAC prescription: pattern of AF (paroxysmal, persistent, or permanent), coronary artery disease, myocardial infarction, prior bleeding, smoking status, and region (Asia, North America, or Europe). Factors associated with OAC prescriptions were age, body mass index, renal function, hypertension, history of cerebral ischemic symptoms, and AF ablation.

Conclusion
Multimorbid AF patients prescribed NOACs have fewer comorbidities than those prescribed VKAs. Age, AF pattern, comorbidities, and renal function are associated with OAC prescription.
Socio-economic and health determinants of preference for separate living among older adults: A cross-sectional study in India
Authors: Muhammad T. , Balachandran Arun , Srivastava Shobhit 
Published: April 2021

Introduction
The living arrangements among the older population form a basic pointer to the care and support of older adults in India, and living with extended kin is clearly differentiated from living separately. This paper attempts to understand the associations between socio-economic and health-related variables with preference for the separate living among older adults in India.

Materials and methods
Using data from Building Knowledge Base on Population Ageing in India (BKPAI), we employed bivariate and probit regressions on a sample of 9540 older adults to fulfil the study objective.

Results
Nearly 21% of older adults were living alone/with a spouse. Additionally, those older adults who lived alone/with spouse had specific reasons, i.e. about 14.6% reported that they had no children, 47.3% of older adults had their children away and 15.9% of older adults reported a family conflict. Availability of children is consistently found to be negatively associated with the preference of separate living. Besides, better self-rated health, independence in daily activities, and facing any type of violence were the strongest predictors of preference for separate living. In addition, the background characteristics, including age, sex, education, religion, and ethnicity, were found as significant predictors of living arrangement preference. Preference for co-residential arrangements emerges among older persons who have a feeling of importance within their family.

Conclusion
Physical proximity to kin and health conditions, in addition to economic conditions, substantially determine the swing towards separate living among older adults in India. This suggests that attention has to be paid to the demand for specialized care and health services among older adults living separately.
Predicting eyes at risk for rapid glaucoma progression based on an initial visual field test using machine learning
Authors: Shuldiner Scott R. , Boland Michael V. , Ramulu Pradeep Y. , De Moraes C. Gustavo , Elze Tobias , Myers Jonathan , Pasquale Louis , Wellik Sarah , Yohannan Jithin 
Published: April 2021

ObjectiveTo assess whether machine learning algorithms (MLA) can predict eyes that will undergo rapid glaucoma progression based on an initial visual field (VF) test.DesignRetrospective analysis of longitudinal data.Subjects175,786 VFs (22,925 initial VFs) from 14,217 patients who completed ≥5 reliable VFs at academic glaucoma centers were included.MethodsSummary measures and reliability metrics from the initial VF and age were used to train MLA designed to predict the likelihood of rapid progression. Additionally, the neural network model was trained with point-wise threshold data in addition to summary measures, reliability metrics and age. 80% of eyes were used for a training set and 20% were used as a test set. MLA test set performance was assessed using the area under the receiver operating curve (AUC). Performance of models trained on initial VF data alone was compared to performance of models trained on data from the first two VFs.Main outcome measuresAccuracy in predicting future rapid progression defined as MD worsening more than 1 dB/year.Results1,968 eyes (8.6%) underwent rapid progression. The support vector machine model (AUC 0.72 [95% CI 0.70–0.75]) most accurately predicted rapid progression when trained on initial VF data. Artificial neural network, random forest, logistic regression and naïve Bayes classifiers produced AUC of 0.72, 0.70, 0.69, 0.68 respectively. Models trained on data from the first two VFs performed no better than top models trained on the initial VF alone. Based on the odds ratio (OR) from logistic regression and variable importance plots from the random forest model, older age (OR: 1.41 per 10 year increment [95% CI: 1.34 to 1.08]) and higher pattern standard deviation (OR: 1.31 per 5-dB increment [95% CI: 1.18 to 1.46]) were the variables in the initial VF most strongly associated with rapid progression.ConclusionsMLA can be used to predict eyes at risk for rapid progression with modest accuracy based on an initial VF test. Incorporating additional clinical data to the current model may offer opportunities to predict patients most likely to rapidly progress with even greater accuracy.
Support Vector Machine Predictive Analysis Implementation: Case Study of Tax Revenue in Government of South Lampung
Authors: Fikriya Arina Ashfa , Hikmawati Sanny 
Published: April 2021

Tax is potential revenue that is used by the government as a source of funding to run the government. One of the conditions needed to implement decentralization is the availability of sources of local revenue. Some local revenue sources are hotel and restaurant taxes. Issues raised in this research are that the number of hotel and restaurant visitors changes every year, resulting in fluctuations in the amount of tax. On the other hand, the Government of South Lampung had difficulty in predicting the target of hotel and restaurant tax revenue when arranging a revenue budget. This is due to the absence of formula to calculate the potential tax revenue accurately, resulting in a lack of strategic management for local revenue improvement. Now, Business Intelligence is becoming a trend. Many sectors use Business Intelligence to analyze and prepare new strategies and improve performance. Thus, it is necessary to use Business Intelligence to predict the potential of hotel and restaurant tax revenue so that the Government of South Lampung can develop appropriate strategies to improve local tax revenue and minimize tax reduction. The method used is a predictive analysis using the Support Vector Machine (SVM). The result of this study is expected to be taken into consideration for South Lampung Local Government Revenue Service, in particular for the determination of the target of the hotel and restaurant tax sector in the coming year.
The Effect of Android Game Based Learning for Student Interest in Mathematics Learning
Authors: Laksita Ghany Desti , Oktaviani Dewi , Pangestu Aji 
Published: April 2021

Nowadays technology is growing very rapidly. The existence of this technology development, helps a lot of people in carrying out their activities. There is one form of development technology that very influential in everyday life and mostly found in the community is an android smartphone. In this age, smartphones have become a lifestyle for the society. The development of smartphone technology has been perceived by all levels of society especially for students. Besides, being used in social media, smartphone purpose is also being used to play a game by students, both online and offline games. In the field of education, smartphones are still rarely used to support learning activities, especially in mathematics learning. This issue is happened because there are still many educators who are reluctant to switch from conventional learning methods to digital-based learning. Even though the interest of students in the smartphone technology especially game, is high enough. This research, intend to determind the effect of mathematics learning based on interactive android game to student’s study interest. This research use study literature method, that is consider relevant various research, then the researcher conclude it based on the various research. The result of this research is there is an influence of learning based on interactive android game to student’s interest. So, this learning based on android game can be used to increase student interest in mathematics.
Local Knowledge on Useful Plants in The Coastal Line Along Parangtritis and its Surroundings
Authors: Handayani Meri , Sulistyowati Eka 
Published: April 2021

In the coastal areas of Parangtritis and its surroundings have plant’s diversity which is still not much researched and documented. Documentation of the useful plants by local people (ethnobotany) is needed so that knowledge will be exist. This is due to the development of technology and science, the local knowledge about plant is increasingly degraded. This study aims to find out the knowledge and use of plants by local people. Data about plant’s diversity was carried out by analyzing vegetation in the coastal areas of Parangtritis and its surroundings which consisted of three locations namely Mangrove Forest of Baros, Parangkusumo Sand Dune, and Karst around Langse Cave. Data collection of ethnobotany was carried out by direct observation and semi-structured interviews with key informants. Snowball sampling technique was used to determine the key informants. The results of the study obtained 40 plant species from 27 families. Among 40 species, there were species that had a single function or others that had multiple function. It divided into 7 usability groups, namely fodder (22 species), medicine (11 species), timber (4 species), household plant (19 species), ritual (2 species), ornamental (6 species), and crafts (2 species).
Systemimmanenz und Transformation: Die Bibliothek der Zukunft als lokale Verwalterin?
Authors: Knöchelmann Marcel 
Published: April 2021

ZusammenfassungDeutschland bemüht sich, als geschlossener, exzellenter Wissenschaftsstandort durch Rahmenverträge mit Großverlagen einen höheren Anteil an Open-Access-Publikationen zu erreichen. Dies erwirkt lediglich eine Transformation im Sinne einer systemimmanenten, sanften Evolution und verhindert den Gerechtigkeitsgedanken, der Open Access ursprünglich war. Die Zukunft der Bibliothek scheint auf die Rolle der lokalen Verwalterin reduziert zu sein, anstatt eine integrative, tatsächlich systemgestaltende Position einzunehmen.1
Projektbericht: Erfahrungen mit bürgerschaftlichem Engagement in der Stadtbibliothek Aachen am Beispiel der „Dialog in Deutsch“®-Gesprächsrunden für Zugewanderte
Authors: Lohe Anne 
Published: April 2021

Zusammenfassung
Die Stadtbibliothek Aachen hat seit 2015 mit den Gesprächsgruppen „Dialog in Deutsch“® (DiD)1 ein ehrenamtlich getragenes niederschwelliges Projekt für Zugewanderte in den laufenden Betrieb integriert, das sich am Modell der Bücherhallen Hamburg orientiert. Das Beispiel illustriert das Potenzial für die Weiterentwicklung von einer traditionell aufgestellten Stadtbibliothek zu einem mit anderen Bildungsträgern vernetzten Kulturzentrum. Zugleich zeigt es Herausforderung und Chancen für Öffentliche Bibliotheken bei der Einbindung ehrenamtlichen Engagements angesichts eines offensichtlichen gesellschaftlichen Bedarfs an Integrationsarbeit. Abschließend beleuchtet ein Blick auf die aktuelle Situation in 2020 die Beeinträchtigung des DiD-Projekts durch die Coronapandemie.
Bibliotheken in der Pandemie
Authors: Korthals Julia , Seidl Tobias , Vonhof Cornelia 
Published: April 2021

Zusammenfassung
Die aktuelle Situation, in der sich die Welt einer Pandemie ausgesetzt sieht, zeigt einmal mehr, dass sich die Zukunft nicht vorhersagen lässt. Zukunftsforschung bietet Bibliotheken jedoch die Chance, zukünftige Folgen der Pandemie besser einzuschätzen, sich auf möglicherweise eintretende Ereignisse vorzubereiten und bereits heute Strategien für morgen zu entwickeln. Der folgende Beitrag präsentiert verschiedene Methoden der Zukunftsforschung und gibt Antwort darauf, was Zukunftsforschung für Bibliotheken leisten kann. Zudem werden Trends aus Zukunftsreports vorgestellt, die sich momentan am Horizont der Bibliothekswelt andeuten.
Readiness of food producers to reflect regions in their names and trademarks: a perspective for regional branding with sunflower oil
Authors: Ruban Dmitry A. , Ermolaev Vladimir A. 
Published: April 2021

Abstract
Popular food products can be used in regional branding. Names and trademarks of 56 Russian producers of sunflower oil, which is nationally high-demanded culinary oil, are analyzed to find indications of regions. The regional affinity is classified and scored. It is found that about a half of the considered producers indicate region of location in their names and/or trademarks. Often, regions are considered directly, although some producers mention them in unclear or allegoric ways. Many region-concerned producers concentrate in the Altai, Rostov, and Krasnodar regions. These findings indicates on the urgency of support of the region-related naming by regional administrations and professional associations.
Investigation of radiation induced luminescence with modulated signal transmission in optical fiber
Authors: Kadhum Haider A. , Ali Mazin Ali A. , Saleh Zeyad A. 
Published: April 2021

Abstract
In this work, the effect of mixed beta and gamma radiation on the optical fiber properties was investigated, this effect has been studied for different signal frequencies which range 1–100 kHz carrying on laser beam using amplitude shift key (ASK). Single mode (SM) glass optical fiber was utilized, and exposed by (Cs-137) as radioactive point source with different low dose rates. The variation of received optical power (P

r
), peak to peak voltage (Vp-p), voltage gain (A

v
), and signal to noise ratio (SNR) were measured before and after irradiation. It was observed that an improvement in the received signals which propagates in optical fiber after irradiation by exposure of lower dose rates.
Influence of fabrication parameters on the elastic modulus and characteristic stresses in 3D printed PLA samples produced via fused deposition modelling technique
Authors: Tognana Sebastián , Montecinos Susana , Gastien Rosana , Salgueiro Walter 
Published: April 2021

Abstract
Commonly used 3D printed samples are partially infilled to reduce time and cost of printing, with mechanical properties dependent on the infill. In this work, the influence of the percentage and pattern of infill in PLA printed samples on the elastic modulus and characteristic stresses was analyzed. The elastic modulus, E, and characteristic stresses (σ
0.2, σ
4 and the maximum tensile stress) were determined for each sample using impulse excitation technique, IET, and uniaxial tensile tests. An apparent density was calculated for each pattern and infill percentage, and the mechanical parameters were studied as a function of such density. The results of IET obtained in different modes of vibration were analyzed and an apparent value of E was calculated. FEM simulations were carried out and the results were compared with the experimental ones. The mechanical properties for different infill percentages and infill patterns were studied by comparing the specific values of E and the stresses. Samples with higher infill percentages exhibit the best specific values of maximum stress and E, but the sample with 20% infill has the highest specific yield stress and a good value of the specific E from flexural vibrations.
Information seeking criteria: artificial intelligence, economics, psychology, and neuroscience
Authors: Nakamura Kiyohiko 
Published: April 2021

Abstract
There has been an enormous amount of interest in how the brain seeks information. The study of this issue is a rapidly growing field in neuroscience. Information seeking is to make informative choices among multiple alternatives. A central issue in information seeking is how the value of information is assessed in order to choose informative alternatives. This issue has been studied in psychology, economics, and artificial intelligence. The present review is focused on information assessment and summarizes the psychological and computational criteria with which humans and computers assess information. Based on the summary, neurophysiological findings are discussed. In addition, a computational view of the relationships between these criteria is presented.
Nitroimidazoles Part 9. Synthesis, molecular docking, and anticancer evaluations of piperazine-tagged imidazole derivatives
Authors: Al-Soud Yaseen A. , Al-Ahmad Ala’a H. , Abu-Qatouseh Luay , Shtaiwi Amneh , Alhelal Kafa’ A. S. , Al-Suod Hossam H. , Alsawakhneh Sondos O. , Al-Qawasmeh Raed A. 
Published: April 2021

Abstract
New piperazine-tagged imidazole derivatives were synthesized via reaction of 1-alkyl/aryl-5-bromo-2-alkyl-4-nitro-1H-imidazoles 1–3 with piperazine nucleophiles. Nine selected compounds were assessed for their antiproliferative inhibition potency against five human cancer cell lines (MCF-7, PC3, Du145, HepG2 and Dermal/Fibroblast). Compounds 7 and 10 are the most potent anticancer agents on HepG2 cell line with IC50 values of (5.6 ± 0.5 µm) and (29.6 ± 7.6 µm) respectively, and on MCF-7 with IC50 values of (32.1 ± 5.6 µm) and (46.2 ± 8.2 µm) respectively. The molecular docking of compounds 7 and 10 has been studied, and the results reveal that the newly designed piperazine-tagged imidazole derivatives bind to the hydrophobic pocket and polar contact with high affinity.
Synthesis, cytotoxicity and in silico study of some novel benzocoumarin-chalcone-bearing aryl ester derivatives and benzocoumarin-derived arylamide analogs
Authors: Abdul-Ridha Nabeel A. , Salmaan Afraah D. , Sabah Rita , Saeed Bahjat , Al-Masoudi Najim A. 
Published: April 2021

Abstract
The development of new prostate cancer protein receptor cytochrome P450 17A1 inhibitors offers the possibility of generating structures of increased potency. To this end, the chalcone analogs 7 and 8 were prepared from treatment of methyl 3-oxo-3H-benzocoumarin-2-carboxylate (4) with aryl aldehydes. Treatment of 7 and 8 with three anti-inflammatory drugs, flurbiprofen, ketoprofen and ibuprofen, in the presence of POCl3/DMAP gave the ester analogs 9–12. Analogously, treatment of ethyl 3-oxo-3H-benzocoumarin-2-carboxylate (15), prepared previously from 2-hydroxy-1-naphthaldehyde (13) and dimethylmalonate (14), with various arylamines: 4-bromoaniline, 2-amino-6-methylpyridine, amino-antipyrine and 2-amino-5-nitrothiazole, in the presence of potassium tert-butoxide gave the benzocoumarine-3-arylamide analogs. The in vitro cytotoxic activities of 9–12 and 16–19 were evaluated against human prostate cancer cell lines (PC-3) and normal human liver epithelia (WRL-68) by MTT assay. Compounds 10 and 17 were the most active cytotoxic agents among the series against PC-3 cells with IC50 values of 71.35 and 78.25 μg mL–1 with SI values of 3.0 and 4.2, respectively (calculated from the cytotoxicity effects of 10 and 17 on the normal human liver epithelia [WRL-68]). Furthermore, compounds 11 and 12 were tested against breast cancer (HER2 cell lines), prostate cancer (DU-135 cell lines) and MCF-7 but were inactive. Molecular docking studies between the protein receptor CYPP450 17A1 and compounds 10 and 17 revealed that these compounds primarily form hydrophobic interactions with the receptor.