bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of a new multipurpose whole-body CzT-based camera: comparison with a dual-head Anger camera and first clinical images
Authors: Desmonts Cédric , Bouthiba Mohammed Abdeldjalil , Enilorac Blandine , Nganoa Catherine , Agostini Denis , Aide Nicolas 
Published: March 2020

Abstract
Background
Evaluate the physical performance of the VERITON CzT camera (Spectrum Dynamics, Caesarea, Israel) that benefits from new detection architecture enabling whole-body imaging compared to that of a conventional dual-head Anger camera.

Methods
Different line sources and phantom measurements were performed on each system to evaluate spatial resolution, sensitivity, energy resolution and image quality with acquisition and reconstruction parameters similar to those used in clinical routine. Extrinsic resolution was assessed using 99mTc capillary sources placed successively in air, in a head and in a body phantom filled with background activity. Spectral acquisitions for various radioelements used in nuclear medicine (99mTc, 123I, 201Tl, 111In) were performed to evaluate energy resolution by computing the FWHM of the measured photoelectric peak. Tomographic sensitivity was calculated by recording the total number of counts detected during tomographic acquisition for a set of source geometries representative of different clinical situations. Sensitivity was also evaluated in focus mode for the CzT camera, which consisted of forcing detectors to collect data in a reduced field-of-view. Image quality was assessed with a Jaszczak phantom filled with 350 MBq of 99mTc and scanned on each system with 30-,20-,10- and 5-min acquisition times.

Results
Extrinsic and tomographic resolution in the brain and body phantoms at the centre of the FOV was estimated at 3.55, 7.72 and 6.66 mm for the CzT system and 2.47, 7.75 and 7.72 mm for the conventional system, respectively. The energy resolution measured at 140 keV was 5.46% versus 9.21% for the Anger camera and was higher in a same manner for all energy peaks tested. Tomographic sensitivity for a point source in air was estimated at 236 counts·s−1·MBq−1 and increased to 1159 counts·s−1·MBq−1 using focus mode, which was 1.6 times and 8 times greater than the sensitivity measured on the scintillation camera (144 counts·s−1·MBq−1). Head and body measurements also showed higher sensitivity for the CzT camera in particular with focus mode. The Jaszczak phantom showed high image contrast uniformity and a high signal-to-noise ratio on the CzT system, even when decreasing acquisition time by 6-fold. Representative clinical cases are shown to illustrate these results.

Conclusion
The CzT camera has a superior sensitivity, higher energy resolution and better image contrast than the conventional SPECT camera, whereas spatial resolution remains similar. Introduction of this new technology may change current practices in nuclear medicine such as decreasing acquisition time and activity injected to patient.
Bile cast nephropathy: when the kidneys turn yellow
Authors: El Chediak Alissar , Janom Khaled , Koubar Sahar H. 
Published: March 2020

AbstractKidney injury is a common finding in patients with liver disease. Bile cast nephropathy (also known as cholemic nephropathy) is an overlooked cause of renal injury in patients with hyperbilirubinemia. It can occur as a result of the toxic effects of bilirubin and bile acids on the renal tubules via several mechanisms. Bile cast nephropathy has characteristic histopathological changes consisting of bilirubin cast deposition in the distal nephron along with tubular epithelial cell injury. Treatment is based on the reversal of liver injury. This review aims to describe bile cast nephropathy in terms of its clinical and morphological features and to shed light on diagnostic techniques. In addition, we present data on management of such nephropathy while reviewing all the reported cases of bile cast nephropathy.
A translation and validation of the Perceived Political Self-Efficacy (P-PSE) Scale for the use in German samples
Authors: Bromme Laurits , Rothmund Tobias , Caprara Gian Vittorio 
Published: March 2020

AbstractCaprara et al. (European Journal of Social Psychology 39:1002–1020, 2009) criticized existing measures of internal political efficacy for not taking into account psychological theories of self-efficacy and for the resulting low construct validity. As an alternative, they presented a ten-item measure called Perceived Political Self-Efficacy (P-PSE) Scale. Based on social cognitive theory, it adopts a psychological understanding of self-efficacy and captures the phenomenon in a more systematic and complete manner than previous measures of internal efficacy.We translated the P-PSE scale to German and tested it in a German national quota sample, using quotas for age, gender and education (N = 1025). We provided evidence on the scale’s construct validity (by testing its correlations towards related constructs) and on its criterion validity (by regressing political participation propensity on the P-PSE score). The scale explained ΔR2 = 26% of people’s propensity for political participation over and above sociodemographic variables, and ΔR2 = 12% over and above previously existing measures, demonstrating its incremental value. We also tested cross-cultural measurement invariance towards an Italian sample, establishing configural, as well as partial metric and scalar invariance. In addition, we validated a four-item short version of the scale, which proved to be similarly valid as the full version. We argue, that these two measurement instruments provide a more adequate way of assessing internal political efficacy for research in German-speaking countries.
Knowledge, attitude and health-seeking behavior among family caregivers of mentally ill patients at Assiut University Hospitals: a cross-sectional study
Authors: Gabra Romany H. , Ebrahim Omnya S. , Osman Doaa M. M. , Al-Attar Ghada S. T. 
Published: March 2020

Abstract
Background
Mental illness is associated with misunderstanding and unfavorable attitude worldwide. The belief in its spiritual nature made traditional healers the main service consultants for mentally ill patients. The present study is a cross-sectional study conducted among 425 main family caregivers of mentally ill patients at Assiut University Hospital. The objective of the study was to assess the caregivers’ knowledge and attitude towards mental illness as well as their health-seeking behavior for their mentally ill relatives.

Results
The studied caregivers had low scores of knowledge and attitude towards mental illness. Age of the caregivers, their education, and the type of first consulted care and aggressive behavior of the mentally ill relatives were the significant predictors of caregivers’ knowledge and attitude towards mental illness. The majority of caregivers (80.2%) sought advice for the first time from traditional healers. Traditional healers referred only 16.4% of caregivers’ mentally ill relatives to psychiatric care.

Conclusion
The studied caregivers had poor knowledge and a negative attitude towards mental illness. Traditional healers were the main consulted care. So, increasing awareness of mental illness is highly recommended.
Role of imaging in assessment and detection of complications after bariatric surgery
Authors: Latif Mahmoud Abdel , Fouda Nehad , Omran Eman , Refaey Mohamed S. 
Published: March 2020

AbstractBackgroundBariatric surgery is performed to control morbid obesity secondary to failed medical approaches. Practical knowledge of post-surgical anatomy allows accurate interpretation of imaging findings related to normal post-surgical anatomy and common post-surgical complications.The purpose of this study was to highlight the role of imaging in the assessment and detection of complications after bariatric surgery.ResultsThis prospective study included 49 patients who had bariatric surgery. Sleeve gastrectomy was the most common bariatric surgery. The leak was the commonest complication (12%). The sensitivity of upper GI series for diagnosis of post-operative complication after bariatric surgery was 70% and specificity 94% while the sensitivity of CT study was 95% and specificity 95%.ConclusionCT has a golden role in the diagnosis of post-operative complications. Both post-contrast CT and upper GI series should be used in diagnosing complications following bariatric surgery. US is useful for diagnosis of a superficial problem.
Ectopic Prolactin Secretion From a Uterine Leiomyoma
Authors: Sachdev Saachi , Reyes Maria Carolina , Snyder Peter J 
Published: March 2020

Abstract
Ectopic hormone production is well recognized, but ectopic production of prolactin has been reported infrequently. We report here the case of a 47-year-old woman who had hyperprolactinemia (213-224 ng/mL) causing galactorrhea and hypogonadism. Cabergoline treatment, 1.0 mg twice a week, did not lower the prolactin level at all, but excision of a large uterine leiomyoma corrected the hyperprolactinemia and the hypogonadism. The excised leiomyoma tissue exhibited immunostaining for prolactin, confirming by this method for the first time that a uterine leiomyoma was the cause of hyperprolactinemia. This case illustrates the need to consider an ectopic source of prolactin in a patient who has hyperprolactinemia that is not associated with a large sellar mass and is completely resistant to cabergoline.
Epigenetic changes occur at decidualisation genes as a function of reproductive ageing in mice
Authors: Woods Laura , Morgan Natasha , Zhao Xiang , Dean Wendy , Perez-Garcia Vicente , Hemberger Myriam 
Published: March 2020

ABSTRACT
Reproductive decline in older female mice can be attributed to a failure of the uterus to decidualise in response to steroid hormones. Here, we show that normal decidualisation is associated with significant epigenetic changes. Notably, we identify a cohort of differentially methylated regions (DMRs), most of which gain DNA methylation between the early and late stages of decidualisation. These DMRs are enriched at progesterone-responsive gene loci that are essential for reproductive function. In female mice nearing the end of their reproductive lifespan, DNA methylation fidelity is lost at a number of CpG islands (CGIs) resulting in CGI hypermethylation at key decidualisation genes. Importantly, this hypermethylated state correlates with the failure of the corresponding genes to become transcriptionally upregulated during the implantation window. Thus, age-associated DNA methylation changes may underlie the decidualisation defects that are a common occurrence in older females. Alterations to the epigenome of uterine cells may therefore contribute significantly to the reproductive decline associated with advanced maternal age.
Charged particle radiation induced changes to optical properties of acousto-optic materials
Authors: Taylor Barrett J. , Bourassa Adam E. , Bradley Michael P. 
Published: March 2020

We report on the measurement of the transmittance and reflectance of unpolarized light (425–700 nm) in three birefringent, acousto-optic materials, including quartz, lithium niobate, and tellurium dioxide, after exposure to varying fluences of proton radiation (

10

14

−

10

18

p
r
o
t
o
n
s

/

c
m

2

) delivered by a 10 keV hydrogen ion beamline. We observe a general monotonic decrease in transmittance with increasing fluence for all three materials, but with varying rates of change and critical points of change. Reflectance measurements also exhibit a general monotonic trend with fluence, but increases in quartz are observed versus decreases in both lithium niobate and tellurium dioxide. These observations are used to assess the suitability of the materials for acousto-optic applications in the space environment where charged particles from the solar wind are dominant and pose a threat to device operation. Our measurements agree with previously reported work concluding that tellurium dioxide is suitable for space applications at low fluences (below

10

16

i
o
n
s

/

c
m

2

), but our findings also raise previously unreported concerns for higher accumulated fluences observed for longer mission lifetimes of greater than five to 10 years in space in an unshielded configuration.
Improving the transmission efficiency of the Cassegrain optical system for Bessel–Gaussian beams
Authors: Liu Renxuan , Yang Huajun , Jiang Ping , Qin Yan , Caiyang Weinan , Cao Biao , Zhou Miaofang , Mao Shengqian 
Published: March 2020

With the improvement of the transmission efficiency, the Cassegrain antenna can be widely used in space optical communication. In this paper, the Bessel–Gaussian (BG) beam is used to avoid the central energy loss of a Cassegrain antenna system. The intensity distribution and the phase distribution of the BG beam passing through a Cassegrain antenna are theoretically derived and simulated. At a wavelength of 1550 nm, this method can theoretically improve the transmission efficiency to approach 100% under the situation in which the obscuration ratio is nonzero, and the transmission efficiency can reach more than 80% when obscuration ratio is in the range of from 0 to 0.1252 with

l
=
4

. The effects of on-axial defocusing on the light field and the transmission efficiency are studied. The method proposed in this paper can remarkably improve the transmission efficiency of a Cassegrain antenna in a practical and uncomplicated approach.
Long-wave infrared absorption measurement of undoped germanium using photothermal common-path interferometry
Authors: Lee Yu-Jen , Das Avijit , Mah Merlin L. , Talghader Joseph J. 
Published: March 2020

Germanium is one of the most commonly used materials in the longwave infrared (

λ
∼

8

−

12

µ

m

), but ironically, its absorption coefficient is poorly known in this range. An infrared photothermal common-path interferometry system with a tunable quantum cascade pump laser is used to measure the absorption coefficient of

>

99.999

%

pure undoped germanium as a function of wavelengths between 9 and 11 µm, varying between about 0.15 and

0.45

c
m

−
1

over this range.
Proposals for Using the NFC Technology in Regional Passenger Transport in the Slovak Republic
Authors: Brumercikova Eva , Bukova Bibiana 
Published: March 2020

AbstractNFC (Near Field Communication) devices are used in contactless payment systems, similar to those used in credit cards and electronic ticket smart cards, and they allow a mobile payment to replace or supplement these systems. The trend of increasing the quality of transport services also includes the use of progressive information technologies. The article focuses on the use of NFC technology in regional passenger transport. In the first proposal, the implementation of NFC technology in the form of an electronic wallet in a regional contactless chip card is being considered. In the second proposal we deal with the implementation of NFC technology in regional passenger transport using mobile phones with an active NFC chip. The proposals use Check-In/Check-Out validation, where validators are placed in vehicles. In both proposals it would be possible to create a link to EMV (Europay/MasterCard/VISA) technology, and thus to provide a linking of a contactless smart card, possibly a mobile phone to the passenger’s personal account.
Proposal of Methodology to Calculate Necessary Number of Autonomous Trucks for Trolleys and Efficiency Evaluation
Authors: Gnap Jozef , Riha Zdenek , Semanova Stefania 
Published: March 2020

Abstract
The introduction of the paper highlights best practice in the area of deploying autonomous trucks in warehouses and the automotive industry, including the current technical possibilities of selected autonomous trucks. The next chapter presents the selected outputs of the scientific project “Center of Excellence for Intelligent Transport Systems” focused on a proposal of the methodology for calculating the necessary number of autonomous trucks and trolleys deployed in logistics warehouses. The methodology is based on the requirement that autonomous trucks do not have downtime. This represents a model solution with possible application in warehouse logistics but also in the automotive industry. The follow-up chapter proposes a methodological procedure to evaluate the efficiency of introducing autonomous trucks to pull trolleys in a logistics warehouse compared to conventional trucks operated by trained personnel. Autonomous trucks can theoretically be operated 365 days and 24 hours depending on the technology of their operation, battery charging, etc. On the other hand, there is generally a shortage of logistics personnel in the European Union as well as reliability and performance have been declining in recent years. The conclusion of the paper includes a discussion of the research results obtained and possibilities for future research.
Long-term urban traffic monitoring based on wireless multi-sensor network
Authors: Loga-Księska Wiktoria , Sordyl Justyna , Ryguła Artur 
Published: March 2020

Abstract
Increasing the number of vehicles on the road network and the growing popularity of sustainable development of urban areas have resulted in the need for implementing efficient and cost-effective traffic measurement methods. From the perspective of traffic management, up-to-date information about vehicle density and access to historical data are the key components of traffic variability analyses. Rapid technological development based on Intelligent Transport Systems (ITS) has popularised the wireless sensor networks (WSN) application. The solution enables continuous monitoring of selected area using multiple wireless and low-cost sensors connected within a network. Those systems are dynamically evolving tools for solving an effective traffic management issues in city centres and urban environments. In the study, authors have performed a traffic variability and its dynamics analysis in a selected area using a multi-sensor network for traffic volume monitoring. The article presents the results of research conducted between years 2015 - 2018 throughout the city of Bielsko-Biala with the support of OnDynamic multimodal system. Within the context of the analyses, basic traffic parameters have been determined and variability trends have been identified on selected road sections. Long-term research indicated the minor variation in a number of vehicle detections and relatively stable traffic volume in the city centre during the analysis period.
Isatin as a simple, highly selective and sensitive colorimetric sensor for fluoride anion
Authors: Haider Azeem , Ahmed Mukhtiar , Faisal Muhammad , Naseer Muhammad Moazzam 
Published: March 2020

AbstractHerein, we report the fluoride anion sensing properties of a commercially available and inexpensive organic compound, isatin, which is found to be a highly selective and sensitive sensor. In naked-eye experiments, by addition of fluoride anions, isatin shows a dramatic color change from pale yellow to violet at room temperature, while the addition of other anions,i.e.Cl−,$\mathrm{Cl}^-,$Br−,I−,ClO4−,H2PO4−andPF6−,$\mathrm{Br}^-,\mathrm I^-,\mathrm{ClO}_4^-,{\mathrm H}_2\mathrm{PO}_4^-\,\mathrm{and}\,\mathrm{PF}_6^-,$did not induce any colour change. Additionally, recognition and titration studies have also been done through UV/Vis spectroscopy. Isatin displayed a new absorption band at 533 nm after the addition of fluoride anions, which is presumably due to acid-base interaction between isatin and fluoride anions, while other anions did not trigger noticeable spectral changes. The detection limit was observed to be 0.367 ppm. DFT calculations were also performed to further explain the behavior of receptor 1 towards the Fˉ anion. Owing to high sensitivity and selectivity, isatin can be useful in the detection of biologically or environmentally important fluoride anions at very low concentration.
Ball-Type Dioxy-o-Carborane Bridged Cobaltphthalocyanine: Synthesis, Characterization and DFT Studies For Dye-Sensitized Solar Cells as Photosensitizer
Authors: Şener Sevil 
Published: March 2020

Abstract
The synthesis and spectroscopic characterization of an innovative ball-type cobalt metallophthalocyanine 4, bridged by four 1,2-bis(2-hydroxymethyl)-O-carborane (HMOC) 1 units, has been achieved. The synthesized compound 4 was characterized structurally and electronically using elemental analysis, UV-Vis absorption spectroscopy, FT-IR spectroscopy, MALDI-TOF mass spectrometry, EPR spectroscopy and magnetic susceptibility. The photovoltaic performance of the newly synthesized compound in dye-sensitized solar cells was investigated. In order to clarify the effect of dye-sensitization time on photovoltaic performance parameters, the sensitization time was varied from 12 to 60 h and the performance parameters were investigated. It was found that sensitization time had a strong effect on the main performance parameters. The best photovoltaic performance was achieved after sensitization for 36 h (short circuit current density, 5.41 mA cm−2; overall conversion efficiency, 3.42%). Computational UV-Vis absorption spectra of the molecule was calculated using time dependent density functional theory and was found consistent with measured UV-Vis spectra.
Crystallographic orientation of ilmenite inclusions in amphibole – an electron backscatter diffraction study
Authors: Xu Chang , Zhao Shanrong , Zhou Jiaohua , He Xu , Xu Haijun 
Published: March 2020

AbstractOrientated ilmenite inclusions have been discovered in amphibole of hornblendite from the Zhujiapu area, Dabie ultra-high-pressure (UHP) metamorphic terrane, China. In order to characterize the crystallographic orientation relationships between ilmenite inclusions and amphibole host and reconstruct the mechanism of their formation, we present an electron backscatter diffraction (EBSD) analysis combined with energy dispersive spectroscopy (EDS) analysis and electron microprobe analysis (EPMA) for ilmenite inclusions and amphibole host. The inclusions can be subdivided into four groups: (1) 60.2% of ilmenites have the crystallographic orientation {0001}Ilm// {100}Amp, (101̅0)Ilm// {010}Amp, [112̅0]Ilm// <001> Ampand [112̅0]Ilm// <012 > Amp. (2) 16.5% of ilmenites have <0001> Ilm// <001> Amp, (101̅0)Ilm// {010}Amp, (112̅0)Ilm// {100}Ampand [3̅031]Ilm// <012> Amp. (3) 13.8% of ilmenites have <0001> Ilm// <012> Amp, (112̅0)Ilm// {100}Ampand [3̅031]Ilm// <001> Amp. (4) 9.5% of ilmenites have <0001> Ilm// [1̅12]Amp, (101̅0)Ilm// {201}Amp, [112̅0]Ilm// [1̅12]Ampand[1121¯]Ilm${[11\overline {21} ]_{Ilm}}$// <010> Amp. By comparing the lattice relationship between ilmenite inclusions and amphibole hosts, it is shown that the frequency of the ilmenite inclusions in different groups is related to the lattice coherency and oxygen packing. Group-1 of the ilmenite inclusions was most likely be formed via a solid-state exsolution process by cooling of the hornblendite after the intrusion was emplaced. The other three groups of ilmenite inclusions were probably formed via reduction reaction in an open system. The formation temperature of the ilmenite inclusions is estimated by using the TiO2solubility geothermeter in amphibole. The minimum formation temperature of the ilmenite inclusions is about 1025 °C, and the maximum formation temperature of the ilmenite inclusions is about 1126 °C.