Digital Wildfire of Disinformation in the Netherlands

The monograph looks at the spread of medical disinformation in the Netherlands through qualitative analysis of Data on Facebook. Through concrete examples it shows how the Facebook self-monitoring process is failing in the Dutch language groups and pages

Kcne4 deletion sex- and age-specifically impairs cardiac repolarization in mice.

Myocardial repolarization capacity varies with sex, age, and pathology; the molecular basis for this variation is incompletely understood. Here, we show that the transcript for KCNE4, a voltage-gated potassium (Kv) channel β subunit associated with human atrial fibrillation, was 8-fold more highly expressed in the male left ventricle compared with females in young adult C57BL/6 mice (P < 0.05). Similarly, Kv current density was 25% greater in ventricular myocytes from young adult males (P < 0.05). Germ-line Kcne4 deletion eliminated the sex-specific Kv current disparity by diminishing ventricular fast transient outward current (Ito,f) and slowly activating K(+) current (IK,slow1). Kcne4 deletion also reduced Kv currents in male mouse atrial myocytes, by >45% (P < 0.001). As we previously found for Kv4.2 (which generates mouse Ito,f), heterologously expressed KCNE4 functionally regulated Kv1.5 (the Kv α subunit that generates IKslow1 in mice). Of note, in postmenopausal female mice, ventricular repolarization was impaired by Kcne4 deletion, and ventricular Kcne4 expression increased to match that of males. Moreover, castration diminished male ventricular Kcne4 expression 2.8-fold, whereas 5α-dihydrotestosterone (DHT) implants in castrated mice increased Kcne4 expression >3-fold (P = 0.01) to match noncastrated levels. KCNE4 is thereby shown to be a DHT-regulated determinant of cardiac excitability and a molecular substrate for sex- and age-dependent cardiac arrhythmogenesis

Mobile computing: a scientometric assessment of global publications output

The paper examines 34641 global publications output on mobile computing research, as covered in Scopus database during 2007-16. The study finds that mobile computing research is growing at 9.35% rate per annum and its citation impact averaged to 3.39 citations per paper. The global share of top 10 most productive countries ranged from 3.29% to 31.06%, with largest global publication share coming from China (31.06%), followed by USA (15.35%), etc. Together, the top 10 most productive countries accounted for 81.24% global publication share during 2007-16. Seven of top 10 countries achieved relative citation index above world average of 1: USA (2.37), U.K. (1.78), Italy (1.72), Canada (1.64), etc. International collaborative publications share of top 10 most productive countries in mobile computing research during 2007-16 varied from 11.55% to 48.16%. Computer Science, among subjects, accounted for the largest publication share (89.55%), followed by engineering (33.58%), social sciences (18.67%), mathematics (8.74%), etc. during 2007-16. The top 20 most productive organizations and authors contributed 14.79% and 1.76% global publication share respectively and accounted for 9.5% and 5.11% global citation share respectively during 2007-16. The top 20 journals accounted for 24.11% share of total journals output of 5673 papers during 2007-16. The top 50 highly cited publications registered citations in the range from 164 to 1235 citations per paper and together these top 50 papers cumulated 16822 citations, with an average of 336.4 citations per paper. These 50 highly cited papers resulted from participation of 184 authors and 103 organizations, and were published in 31 journals, including 4 in IEEE Transactions on Mobile Computing, 2 papers each in Decision Support System, IEEE Communication Magazine, IEEE Pervasive Computing and IEEE Communication Surveys & Tutorials and 1 paper each in other 26 journals.

Farmacología de productos naturales: un enfoque reciente en Calotropis gigantea y Calotropis procera

The authors are thankful to the Dr. Ritu Gilhotra, Principal, School of Pharmacy, Suresh Gyanvihar University, Jaipur, Rajasthan, India. For valuable guidanceIntroduction: Since ancient times, people have used medicinal plants to treat varied diseases. Medicinal plants are the important source of drugs, and many of them that are currently available in the pharmaceutical market are obtained from plant sources. Calotropis gigantea and Calotropis procera are small shrub, which are used conventionally to treat many diseases such as cancer, diabetes and intestinal disease in African and Asian countries. There have been always an increased focus on primary health care: basic health care which is effective and affordable by developing countries. Objective: This paper aims to review the pharmacological and pharmacognostical features of Calotropis gigantea and Calotropis procera Method: Brief review on recent literature carried out using Scopus, Google scholar. Result and Discussion: Several studies provide evidence of their antioxidant, analgesic, anti-inflammatory, anti-diarrheal, anticonvulsant, anti-malarial, hepatoprotective, antitumor, antimicrobial and antinociceptive properties. Conclusion: Species of Calotropis not widely recognized showed different pharmacological actions, due to the presence of effective secondary metabolites.Introducción: Desde la antigüedad, las personas han utilizado plantas medicinales para tratar diversas enfermedades. Las plantas medicinales son la fuente importante de los fármacos, y muchas de ellas, que están actualmente disponibles en el mercado farmacéutico, se obtienen de fuentes vegetales. Calotropis gigantea y Calotropis procera son arbustos pequeños que se utilizan convencionalmente para tratar muchas enfermedades como el cáncer, la diabetes y las enfermedades intestinales en países africanos y asiáticos. Siempre se ha prestado una mayor atención a la Atención Primaria de salud: la atención básica de la salud es eficaz y asequible para los países en desarrollo. Objetivos: Este trabajo tiene como objetivo revisar las características farmacológicas y farmacognosóticas de Calotropis gigantea y Calotropis procera. Método: Breve revisión de la literatura reciente realizada utilizando Scopus, Google scholar. Resultado y discusión: Varios estudios proporcionan evidencia de sus propiedades antioxidantes, analgésicas, antiinflamatorias, antidiarreicas, anticonvulsivas, antipalúdicas, hepatoprotectoras, antitumorales, antimicrobianas y anti-nociceptivas. Conclusión: Especies de Calotropis no ampliamente reconocido mostraron diferentes acciones farmacológicas, debido a la presencia de metabolitos secundarios efectivos

Bessel-Maitland Function of Several Variables and its Properties Related to Integral Transforms and Fractional Calculus

In the recent years, various generalizations of Bessel function were introduced and its various properties were investigated by many authors. Bessel-Maitland function is one of the generalizations of Bessel function. The objective of this paper is to establish a new generalization of Bessel-Maitland function using the extension of beta function involving Appell series and Lauricella functions. Some of its properties including recurrence relation, integral representation and differentiation formula are investigated. Moreover, some properties of Riemann-Liouville fractional operator associated with the new generalization of Bessel-Maitland function are also discussed

Characterization of Metabolic, Diffusion, and Perfusion Properties in GBM: Contrast-Enhancing versus Non-Enhancing Tumor.

BackgroundAlthough the contrast-enhancing (CE) lesion on T1-weighted MR images is widely used as a surrogate for glioblastoma (GBM), there are also non-enhancing regions of infiltrative tumor within the T2-weighted lesion, which elude radiologic detection. Because non-enhancing GBM (Enh-) challenges clinical patient management as latent disease, this study sought to characterize ex vivo metabolic profiles from Enh- and CE GBM (Enh+) samples, alongside histological and in vivo MR parameters, to assist in defining criteria for estimating total tumor burden.MethodsFifty-six patients with newly diagnosed GBM received a multi-parametric pre-surgical MR examination. Targets for obtaining image-guided tissue samples were defined based on in vivo parameters that were suspicious for tumor. The actual location from where tissue samples were obtained was recorded, and half of each sample was analyzed for histopathology while the other half was scanned using HR-MAS spectroscopy.ResultsThe Enh+ and Enh- tumor samples demonstrated comparable mitotic activity, but also significant heterogeneity in microvascular morphology. Ex vivo spectroscopic parameters indicated similar levels of total choline and N-acetylaspartate between these contrast-based radiographic subtypes of GBM, and characteristic differences in the levels of myo-inositol, creatine/phosphocreatine, and phosphoethanolamine. Analysis of in vivo parameters at the sample locations were consistent with histological and ex vivo metabolic data.ConclusionsThe similarity between ex vivo levels of choline and NAA, and between in vivo levels of choline, NAA and nADC in Enh+ and Enh- tumor, indicate that these parameters can be used in defining non-invasive metrics of total tumor burden for patients with GBM