Tapping into the Health Wisdom of Crowd: Trends in Healthcare Social Networks

Web 2.0 technologies have given rise to Health 2.0, i.e., health social networks (HSNs). Citizens everywhere are flocking towards such HSNs that have the potential to empower them towards wellbeing and healthy living. This paper analyzes 37 best-known commercial HSN sites and evaluates them based on an existing evaluation criterion. As a result of a deeper understanding of the sampled HSNs, we develop a three-dimension framework to help categorize HSNs. Such a framework can aid in the design process of HSNs. The paper points out a need towards establishing best practices for design, information privacy and e-literacy aspects of evolving HSNs of the future

Narancs- és sárgabaracklé egyes fizikai és kémiai tulajdonságainak változása a tárolás során

Der Gehalt an Vitamin C, an gesamten und reduzierenden Zuckern, an Säure (berechnet als Zitronensäure) und an gesamter wasserlöslicher Trockensubstanz von frischen und mit Schwefeldioxid behandelten Orangesäften (Valencia) und Aprikosensäften (EI-Amar) wurde bei ihrer Lagerung bei 25, 5 und — 18 °C studiert. Der Vitamin C-, Gesamtzucker, Gesamtsäure- und g esamte wasserlösliche Trockensubstanzgehalt war niedriger in din mit Schwefeldioxid behandelten Säften, während die Menge der reduzierenden Zucker höher als die in frischen Säften erhaltenen Werte. Die Behandlung mit Schwefeldioxid verbesserte die Farbe beider Fruchtsäfte, aber besonders doe des Aprikosensaftes. Der Gehalt an Vitamin C verminderte sich im allgemeinen während der Lagerung, die Geschwindigkeit der Abhanme war jedoch geringer bei niedrigeren Temperaturen. Die während der Lagerung bei verschiedenen Temperaturen im Vitamin C-Gehalt stattfindenden Verluste waren rascher im Aprikosensaft als im Orangesaft. Der Gesamtzuckergehalt des frischen Saftes vor der Lagerung war etwas grösser im Aprikosensaft als im Orangesaft. Die Menge des reduzierenden Zucker war aber im Orangesaft höher. Der Gesamtgehalt an Zuckern und der Gehalt an reduzierenden Zuckern verminderte sich im allgemeinen bei Lagerung bei 5 und 25 °C. Keine Verluste waren jedoch wahrnehmbar bei einer Lagerung bei — 18 °C 35 Tage lang. Ein umgekehrtes Verhältnis bestand zwischen dem Gehalt an reduzierenden Zuckern und dem Säuregehalt. Während der Lagerung war in dem gesamten wasserlöslichen Substanzgehalt der bei den angegebenen Temperaturen gelagerten Orange- und Aprikosensäfte keine nennenswerte Änderung wahrgenommen. Nach den sensorischen Proben waren die frischen und die mit Schwefeldioxid behandelten Orange- und Aprikosensäfte bei 25 °C höchstens 2 Tage lang, bei Lagerung bei 5 °C höchstens 9 Tage lang zum menschlichen Genuss geeignet. Die bei -1 8 °C gelagerten Säfte waren jedoch sogar nach einer 35tägigen Lagerung zum Genuss geeignet. Changes in the contents of vitamin C, total and reducing sugars, total acidity determined as citric acid, and total water-soluble solids were studied in fresh and SO?-treated orange (Valencia), and apricot (El-Amar) juices stored at 25 °C, 5 °C and — 18 °C. The contents of vitamin C, total sugar, acidity and total water-soluble contents were in juices treated with SO. lower and contents of reducing sugars higher than those in fresh juices. The colour of both juices, especially that of apricot juice improved after the preserving process. Generally, the vitamin C contents decreased during storage, but the decreasing rate was lower at lower temperatures. The losses in vitamin C contents during storage at different temperatures took place quicker in apricot juice than in orange juice. In the fresh juice before storage, the contents of total sugar were somewhat higher in apricot juice than in orange juice. Howewer, more reducing sugar was found in the orange juice. In general, storage at 5 °C and 25 °C resulted in a reduction of total and reducing sugars. Neverthless, no noticeable loss was observed when the juices were stored at — 18 °C for a period of 35 days. An inverse relationship was found between contents of reducing sugars and acid content. During the period of storage, there were no noticeable changes in the total water-soluble solids of orange and apricot juice stored at the applied temperatures. The results of sensory tests indicate that both the fresh and the preserved apricot and orange juices are suitable for human consumption for not more than two days when stored at 25 °C and for not more than nine days when stored at 5°C.The tested juices were suitable for human consumption even after a period of 35 days when stored at - 18 °C

DESIGN, SYNTHESIS, CHARACTERIZATION OF SOME NEW SUBSTITUTED CHALCONES AND STUDIES THEIR ANTIMICROBIAL ACTIVITIES

Eight designed chalcones, named [1(p-benzenesulphonamidophenyl)-3-p-chloro-2-propene-1-one][2], [1(p-benzenesulphonamidophenyl)-3-p-nitro-2-propene-1-one][3], [1(4-Ureido)phenyl-3-p-chlorophenyl-2-propene-1-one][5], [1(4-Ureido)phenyl-3-p-nitroophenyl-2-propene-1-one][6], [1(4(p-N-methylaminophenyl)azophenyl-3-p-chlorophenyl-2-propene-1-one][8], [1(4(p-N-methylaminophenyl)azophenyl-3-p-nitroophenyl-2-propene-1-one][9], [1(p-aminophenyl)-3-p-chlorophenyl-2-propene-1-one][10] and [1(p-aminophenyl)-3-p-nitrophenyl-2-propene-1-one][11], were synthesised by condensation of synthesised p-acetylphenylbenzene- sulphonamide, p-acetylphenylurea and p-acetyl-p'-(N-methylamino)azobenzene, with p-chlorobenzaldehyde and p nitrobenzaldehyde in basic media respectively. All synthesised compounds are characterized by its melting points, FTIR, 1H NMR, 13C NMR and Mass spectral analysis. All synthesised compounds are examined their antimicrobial activities against Gram-Ve bactria (Serratia marcescens, Pseudmonas aeroginosa) and Gram+Ve bacterial (Stphylococcus aureus, Streptococcus pyogenes), and Candida albicans fungi. Result showed good to moderate inhibition effect against some bacteria and fungi, in comparison with some pharmaceutical antibiotic and antifungal treatments like Cephalexin, Amoxicillin, Tetracycline, Lincomycine, Nystatine and Fluconazole respectively

Visible Light Sensitive SnO2/ZnCo2O4 Material for the Photocatalytic Removal of Organic Pollutants in Water

In this study, pure ZnCo2O4 and SnO2/ZnCo2O4 mix photocatalysts have been synthesized by the sol-gel process with three different SnO2 loading percentages (10, 20, and 30 wt %). Their photocatalytic activities were assessed on the degradation of organic pollutants in water under visible illumination. The structural, morphological, and optical properties were analyzed by X-ray diffraction (XRD), scanning electron microscopy, energy-dispersive X-ray (EDX), Fourier transform infrared (FTIR), nitrogen adsorption-desorption isotherms, X-ray photoelectron spectroscopy (XPS), and UV–Visible diffuse reflectance measurements. The results have shown that the materials are composed of a crystalline ZnCo2O4 matrix with a decrease in crystallite size with the amount of SnO2. Weakly crystalline SnO2 is also observed for loaded samples. The specific surface area is modified with the loading ratio. The evaluation of the photoactivity of the samples under visible light for the degradation of p-nitrophenol has highlighted that all materials are highly photoactive under visible light thanks to heterojunction between the two oxides. An application test has been conducted on a dye, congo red, showing the same tendencies. An optimal amount of SnO2 loading is observed for the sample containing 20 wt % of SnO2. A comparison with commercial Evonik P25 showed that the materials developed in this work have five to six times better efficiency under visible light, leading to a promising photocatalyst material

[75] Renal metastasis of a primary ovarian carcinoma: A historical case report

Objective: To report on a rare case of renal recurrence of ovarian malignancy. The frequency of secondary tumours of the kidney is underestimated, especially as their diagnosis is often delayed, after nephrectomy or autopsy. Unusual sites for recurrent ovarian metastases include extrahepatic solid organs (except the spleen), bone and the abdominal wall. Methods: Our case represents only the fifth reported case of metastatic ovarian carcinoma presenting as a solitary renal metastatic recurrence in the literature in 30 years. Results: A 47-year-old woman presented with vague abdominal pain. An initial ultrasonography (US) revealed a right ovarian mass, with no other mass in other organs including the kidneys. She underwent right adnexectomy. Histology confirmed an ovarian carcinoma. The patient had adjuvant chemotherapy. A computed tomography scan after surgery revealed a mass in the left kidney. US-guided percutaneous biopsy of the left renal mass confirmed metastatic carcinoma of ovarian origin. The patient underwent left nephrectomy. Histology of the renal mass confirmed the initial findings of the biopsy. Follow-up after 12 months showed complete remission, with no recurrence. Conclusion: Although unusual, awareness of the possibility of rare and atypical sites of ovarian metastatic recurrence, as in our case, can result in early image-guided diagnosis and treatment

[14] A prospective study of transurethral bipolar resection and vaporisation of large prostate adenomas

Objective: To report our experience following the introduction of transurethral bipolar vapo-resection of large prostate adenomas and to evaluate it to the traditional techniques used to date in Algeria in the surgical treatment of large prostates. Methods: This was a prospective longitudinal study, conducted in our department, between December 2015 and September 2016, including 40 patients with a surgical indication for benign prostatic hyperplasia (BPH) with prostate volumes of >70 mL, consenting to the procedure. We evaluated functional parameters [International Prostate Symptom Score (IPSS)/quality of life (QoL) score, maximum urinary flow rate (Qmax)] pre- and postoperatively according to a quarterly schedule, surgical data (resection time, resected volume), as well as the duration of catheterisation and bleeding complications. Results: The mean (range) prostate volume in our series was 118.72 (70–254) mL and the indications were dominated by medical treatment failure and urinary retention, at 55% and 35%, respectively. The evaluation of the IPSS and QoL score showed a constant decrease from a median of 26 and 6 preoperatively to 1 and 0 at 15 months postoperatively, respectively. The median Qmax increased from 5.1 mL/s preoperatively to 14.9 mL/s at 15 months postoperatively. In all, 10% of the patients had postoperative clotting and two patients required surgical haemostasis. The average time to removal of the urinary catheter was 3 days. The average resection speed increased from 0.5 mL/min to 1.6 mL/min at maturity. Conclusion: The combination of resection and vaporisation in large adenomas seems to be effective according to our data, it does not require any particular training for an already established urologist and the investment seems reasonable and compatible in an economic context

[45] Role of nephrometry scoring systems (R.E.N.A.L.-PADUA) in planning nephron-sparing surgery in patients with renal masses: Retrospective study of 88 cases

Objective: To assess the utility of nephrometry scoring systems (R.E.N.A.L.-PADUA) in planning nephron-sparing surgery (NSS) in patients with renal masses. NSS has become the standard for the management of localised renal masses; however, an objective preoperative evaluation is needed. The nephrometry scores role is preoperative evaluation of the complexity of partial nephrectomy (PN) and evaluation of possible postoperative complications, and these scores are not yet standardly used in many countries including Algeria. Methods: We retrospectively evaluated the clinical records of patients who underwent surgical treatment of renal masses between 2013 and 2016 for clinical renal tumours in the Urology Department of Annaba University Hospital, Algeria. All patients underwent preoperative computed tomography or magnetic resonance imaging to define the clinical stage and anatomical characteristics of the tumours. PADUA and R.E.N.A.L. scores were retrospectively assessed for each of the 88 patients. Uni- and multivariate analyses were used to evaluate the correlations between age, gender, Charlson Comorbidity Index, clinical tumour size, PADUA and R.E.N.A.L. complexity group categories, and grade of postoperative complications. Results: We noticed that only nine patients had NSS and all the others a total nephrectomy; however, 20 of them had a moderate complexity score for PN and seven a low complexity score. Then we compared with the results with the management in 2017 and 2018, the attitude was more liberal with the number of PNs greater than that of the 6 years previously. Conclusion: A precise stratification of patients with both PADUA and R.E.N.A.L before nephrectomy is recommended to consider the potential threats and benefits of NSS. They are valuable tools to categorise renal tumours based on anatomical features and to prevent patients from abusive total nephrectomies conserving significant nephronic capital

O novo romance egípcio: transformação urbana e forma narrativa

Os trabalhos da nova geração de escritores do Cairo compartilham um conjunto de características narrativas peculiares, envolvendo tanto uma ruptura com as formas modernistas e realistas anteriores quanto uma transformação das regras de referências pelas quais o texto se relaciona com o mundo externo. O artigo procura mostrar que, independente de onde suas tramas sejam ambientadas, essas obras compartilham homologias formais com as crescentes favelas do Cairo.<br>The new Egyptian novel shares a set of distinct narrative characteristics; these involve both a rupture with earlier realist and modernist forms, and a transformation of the rules of reference by which the text relates to the extrinsic world. The author suggests that, whatever their actual settings, these works share demonstrable formal homologies with the sprawling slums of Cairo itself