bluuebunny/crossref_metadata_2025 huggingface dataset:
On pavonite, cupropavonite, benjaminite and «oversubstituted » gustavite
Authors: Karup-Møller Sven , Makovicky Emil
Published: November 2018

Specimens described by Karup-Møller (1972) were re-studied by means of microprobe analyses, single-crystal X-ray studies and ore microscopy.

«Typical pavonites » follow closely the formula Cu3xPb2xAg1-yBi3-yS5 with 5 x ~ 2 y. The substitution coefficient y varies from 0.18 to 0.32. The substitution interval is centered on Cu0.33Ag0.75Bi2.75Pb0.20S5, y = 0.25, Σ Me = 4.03, i.e. Cu1.33Ag3Bi11Pb0.99Sb20 (Me16S20) in a unit cell with c = 16.4 Å. Cupropavonite, a new mineral from Alaska Mine, Colorado has the formula Cu0.90Ag0.50Bi2.50Pb0.60S5 (y = 0.50, Σ Me = 4.5), i. e. Cu7.2Ag4Bi20Pb4.8S40 (Me32+4S4O) in a monoclinic unit cell with a = 13.45, b = 4.02, c = 33.06 Å (= 2 x 16.53 Å), β = 93. 50°, space group C2/m or Cm. It forms an exsolution pair with Pb-rich pavonite Cu0.27Ag0.78Bi2.78Pb0.33S5. Both phases contain copper interstitial to the pavonite structural motif. Benjaminites are spread on both the Pb-richer and Bi-richer sides of the CuaPbbAg1.5-yBi3.5-y line (idealized y = 0.13-0.44). Benjaminite from Manhattan, Nevada has structural formula Cu0.25Pb0.20Ag1.15Bi3.40S6 with unequal substitution of Ag and Bi (Ag1.5-yBi3.5-z, y > z).

Formulae for determination of the order number, NP, of pavonite homologues from chemical analyses were devised for the cases y = z and y > z, applied to the present and published data. A number of published phases were redetermined in this way and potential new phases pointed out. Benjaminite from Manhattan, Nevada and Old Laut's Mine, Colorado forms oriented intergrowths with gustavite (presumably exsolution). «Oversubstituted gustavite» 3.8Gu79,6 --> 3.4Gu114.1 from Old Laut's Mine is interpreted as a gustavite (80) - pavonite intergrowth.
Étude préliminaire sur la localisation du nickel dans une garniérite naturelle
Authors: Poncelet Georges , Jacobs Pierre , Delannay Francis , Genet Michel , Gérard Paul , Herbillon Adrien-Jules
Published: November 2018

Dans cet article, nous donnons les résultats d'une étude préliminaire menée sur un échantillon de garniérite constitué d'un mélange de minéraux 1 : 1 et 2 : 1. L'utilisation conjointe de plusieurs méthodes d'investigation, dont notamment la microscopie électronique couplée à un spectromètre à dispersion d'énergie et certaines méthodes volumétriques, a permis de montrer qu'une proportion importante de nickel se trouve sous forme d'un composé amorphe, probablement de l'hydroxyde associé à la phase 10 Å, mais ne faisant pas partie de la couche octaédrique de la phase minérale. En outre, l'analyse par microsonde à haute résolution indique que le nickel réticulaire est localisé principalement dans la phase 10 Å, et non réparti de manière homogène entre les phases à 7 Å et à 10 Å.
La grotte et le karst de Cango (Afrique du Sud)
Authors: Martini J.E.J.
Published: November 2018

CANGO CAVE (SOUTH AFRICA).

The author describes a small karst area in the extreme south of the African Continent, with special reference to the Cango Cave , which is a major tourist attraction. Compared with the other karsts of Southern Africa, this area is unique. The karst is typically exogenic, with caves forming by stream disappearance into swallow holes, where the talweg intersects steeply dipping Precambrian limestone. Wet caves are vadose, with only short phreatic segments and exhibit rectilinear longitudinal sections. Passages are low, but wide with bevelled terraced. This peculiar morphology is typical of the caves developing exactly on the water'table and seems to be controlled by the abundance of sediments introduced from the swallow holes.

If one excepts a short active lower level, Cango is a dry cave of the same type than the wet ones. It is practically linear in plan and in profile, with a length of 2,6 km from entrance to end for a total of 5,2 km of passages. The age of the speleogenesis has been estimated as early Pleistocene from the entrance elevation, which is in between the altitude of the actual talweg and the one of the Post African I erosion surface, which started to be eroded during the Upper Pliocene. This relatively young age is in contrast with a Miocene model which was accepted by most of the previous authors.

Cango is well adorned with speleothems, in particular with outstanding abundant shields, monocrystalline stalagmites and pools coated with calcite crystals. In the first chambers from entrance, the speleothems have been deeply corroded by bat guano, with deposition of hydroxylapatite. Previously this corrosion was attributed to resolution due to several rises of the paleowater -table. The meteorology is discussed, in particular the high carbon dioxide which indicates that the cave is poorly ventilated and which constitutes a problem for management and conservation.
INTEROPERABILITY ANALYSIS OF IFC-BASED DATA EXCHANGE BETWEEN HETEROGENEOUS BIM SOFTWARE
Authors: Lai Huahui , Deng Xueyuan
Published: November 2018

Traditionally, the one-to-one interaction between heterogeneous software has become the most commonly used method for multi-disciplinary collaboration in building projects, resulting in numerous data interfaces, different data formats, and inefficient collaboration. As the prevalence of Building Information Modeling (BIM) increases in building projects, it is expected that the exchange of Industry Foundation Classes (IFC)-based data can smoothly take place between heterogeneous BIM software. However, interoperability issues frequently occur during bidirectional data exchanges using IFC. Hence, a data interoperability experiment, including architectural, structural and MEP models from a practical project, was conducted to analyze these issues in the process of data import and re-export between heterogeneous software. According to the results, the fundamental causes of interoperability issues can be concluded as follows: (a) software tools cannot well interpret several objects belonging to other disciplines due to the difference in domain knowledge; (b) software tools have diverse methods to represent the same geometry, properties and relations, leading to inconsistent model data. Furthermore, this paper presents a suggested method for improving the existing bidirectional data sharing and exchange: BIM software tools export models using IFC format, and these IFC models are imported into a common IFC-based BIM platform for data interoperability.
A New Look at T Tauri Star Forbidden Lines: MHD-driven Winds from the Inner Disk
Authors: Fang Min , Pascucci Ilaria , Edwards Suzan , Gorti Uma , Banzatti Andrea , Flock Mario , Hartigan Patrick , Herczeg Gregory J. , Dupree Andrea K.
Published: November 2018

Magnetohydrodynamic (MHD) and photoevaporative winds are thought to play an important role in the evolution and dispersal of planet-forming disks. We report the first high-resolution (Δv ∼ 6 km s−1) analysis of [S ii] λ4068, [O i] λ5577, and [O i] λ6300 lines from a sample of 48 T Tauri stars. Following Simon et al. we decompose them into three kinematic components: a high-velocity component (HVC) associated with jets, and low-velocity narrow (LVC-NC) and broad (LVC-BC) components. We confirm previous findings that many LVCs are blueshifted by more than 1.5 km s−1 and thus most likely trace a slow disk wind. We further show that the profiles of individual components are similar in the three lines. We find that most LVC-NC and LVC-BC line ratios are explained by thermally excited gas with temperatures between 5000 and 10,000 K and electron densities of ∼107–108 cm−3. The HVC ratios are better reproduced by shock models with a pre-shock H number density of ∼106–107 cm−3. Using these physical properties, we estimate

for the LVC and

for the HVC. In agreement with previous work, the mass carried out in jets is modest compared to the accretion rate. With the likely assumption that the LVC-NC wind height is larger than the LVC-BC, the LVC-BC

is found to be higher than the LVC-NC. These results suggest that most of the mass loss occurs close to the central star, within a few au, through an MHD-driven wind. Depending on the wind height, MHD winds might play a major role in the evolution of the disk mass.
Characterizing Signal Loss in the 21 cm Reionization Power Spectrum: A Revised Study of PAPER-64
Authors: Cheng Carina , Parsons Aaron R. , Kolopanis Matthew , Jacobs Daniel C. , Liu Adrian , Kohn Saul A. , Aguirre James E. , Pober Jonathan C. , Ali Zaki S. , Bernardi Gianni , Bradley Richard F. , Carilli Chris L. , DeBoer David R. , Dexter Matthew R. , Dillon Joshua S. , Klima Pat , MacMahon David H. E. , Moore David F. , Nunhokee Chuneeta D. , Walbrugh William P. , Walker Andre
Published: November 2018

The Epoch of Reionization (EoR) is an uncharted era in our universe’s history during which the birth of the first stars and galaxies led to the ionization of neutral hydrogen in the intergalactic medium. There are many experiments investigating the EoR by tracing the 21 cm line of neutral hydrogen. Because this signal is very faint and difficult to isolate, it is crucial to develop analysis techniques that maximize sensitivity and suppress contaminants in data. It is also imperative to understand the trade-offs between different analysis methods and their effects on power spectrum estimates. Specifically, with a statistical power spectrum detection in HERA’s foreseeable future, it has become increasingly important to understand how certain analysis choices can lead to the loss of the EoR signal. In this paper, we focus on signal loss associated with power spectrum estimation. We describe the origin of this loss using both toy models and data taken by the 64-element configuration of the Donald C. Backer Precision Array for Probing the Epoch of Reionization (PAPER). In particular, we highlight how detailed investigations of signal loss have led to a revised, higher 21 cm power spectrum upper limit from PAPER-64. Additionally, we summarize errors associated with power spectrum error estimation that were previously unaccounted for. We focus on a subset of PAPER-64 data in this paper; revised power spectrum limits from the PAPER experiment are presented in a forthcoming paper by Kolopanis et al. and supersede results from previously published PAPER analyses.
Satellite Galaxies in the Illustris-1 Simulation: Poor Tracers of the Mass Distribution
Authors: Brainerd Tereasa G.
Published: November 2018

Number density profiles are computed for the satellites of relatively isolated host galaxies in the Illustris-1 simulation. The mean total mass density of the hosts is well fitted by a Navarro–Frenk–White (NFW) profile. The number density profile for the complete satellite sample is inconsistent with NFW, and on scales ≲0.5 r
200, the satellites do not trace the hosts’ mass. This differs substantially from previous results from semianalytic galaxy formation models. The shape of the satellite number density profile depends on the luminosities of the hosts and the satellites, and on the host virial mass. The number density profile for the faintest satellites is well fitted by an NFW profile, but the concentration is much less than the mean host mass density. The number density profile for the brightest satellites exhibits a steep increase in slope for host-satellite distances ≲0.1 r
200, in qualitative agreement with recent observational studies that find a steep increase in the satellite number density at small host-satellite distances. On scales ≳0.1 r
200 the satellites of the faintest hosts trace the host mass reasonably well. On scales ≲0.4 r
200, the satellites of the brightest hosts do not trace the host mass, and the satellite number density increases steeply for host-satellite distances ≲0.1 r
200. The discrepancy between the satellite number density profile and the host mass density is most pronounced for the most massive systems, with the satellite number density falling far below that of the mass density on scales ≲0.5 r
200.
Zygochrimnus henryi, a new genus and species from South America (Hemiptera, Lygaeoidea, Lygaeidae)
Authors: Brailovsky Harry
Published: November 2018

Zygochrimnushenryi, new genus and new species, is described from Ecuador and Peru, and included in the lygaeid subfamily Lygaeinae. Dorsal and lateral view photographs ofMelanopleurus,Melanopleuroides, andZygochrimnusare provided to allow comparison of the three closely related genera; photographs of the posterior view of the pygophore and the paramere of the new species are included.
Macrotylus henryi, a new species of Pelargonium-feeding Cremnorrhinina from South Africa (Hemiptera, Miridae, Phylinae, Cremnorrhinini)
Authors: Salas Ruth , Schuh Randall T.
Published: November 2018

Macrotylushenryi is described as a new species from South Africa. This new taxon is recorded as feeding on species of Pelargonium (Geraniaceae) in the Western Cape. Documentation is provided in the form of diagnosis, description, habitus photographs, scanning electron micrographs, illustrations and images of genitalic structures, detailed distributional data, host plant information, and images of hosts and habitats. Morphological traits are similar to species of Macrotylus Fieber from the Northern Hemisphere, but coloration is substantially variable, and the structure of the male genitalia is distinctive.
A new species of Paraceratotingis Henry, Montemayor & Knudson from Guyana (Hemiptera, Heteroptera, Tingidae)
Authors: Knudson Alexander H.
Published: November 2018

Paraceratotingishenryisp. n., is described from Guyana. Color photographs and a diagnostic key are provided to aid in distinguishing the species of Paraceratotingis Henry, Montemayor, and Knudson. Diagnoses are also provided.
Rheumatoid Arthritis–Interstitial Lung Disease in the United States: Prevalence, Incidence, and Healthcare Costs and Mortality
Authors: Raimundo Karina , Solomon Joshua J. , Olson Amy L. , Kong Amanda M. , Cole Ashley L. , Fischer Aryeh , Swigris Jeffrey J.
Published: November 2018

Objective.

Interstitial lung disease (ILD) is commonly associated with rheumatoid arthritis (RA) and can have significant morbidity and mortality. The objective of this study was to calculate the prevalence, incidence, healthcare costs, and mortality of RA-related ILD (RA-ILD) in the United States.

Methods.

This retrospective cohort analysis used the Truven Health MarketScan Commercial and Medicare Supplemental health insurance databases from 2003 to 2014 and the Social Security Administration death database. Patients with RA-ILD were selected based on diagnoses on medical claims. Outcomes were 1-year prevalence and incidence of RA-ILD among the general enrollee population, all-cause and respiratory-related healthcare costs (2014 US$), and all-cause survival for a subset of newly diagnosed patients with vital status information. This analysis was descriptive. No statistical testing was conducted.

Results.

Prevalence of RA-ILD ranged from 3.2 to 6.0 cases per 100,000 people across the 10-year period and incidence ranged from 2.7 to 3.8 cases per 100,000 people. There were 750 incident patients with 5 years of followup data. Over that time, 72% had an inpatient admission and 76% had an emergency room visit. Mean total 5-year costs were US$173,405 per patient (SD $158,837). Annual per-patient costs were highest in years 1 and 5. At 5 years after first diagnosis in the data, 35.9% of patients had died.

Conclusion.

Prevalence of RA-ILD increased over time. For patients who could be followed over a 5-year period, healthcare use and costs were somewhat stable over time, but were substantial. RA-ILD is associated with decreased survival.
Associations of MultipleNOTCH4Exonic Variants with Systemic Sclerosis
Authors: Zhou Xiaodong , Li Hongye , Guo Shicheng , Wang Jiucun , Shi Chunhua , Espitia Maribel , Guo Xinjian , Wang Qingwen , Liu Mengyuan , Assassi Shervin , Reveille John D. , Mayes Maureen D.
Published: November 2018

Objective.

Findings from previous genome-wide association studies indicated an association of theNOTCH4gene with systemic sclerosis (SSc). This is a followup study to fine-map exonic variants ofNOTCH4in SSc.

Methods.

All exons ofNOTCH4were sequenced and analyzed in a total of 1006 patients with SSc and 1004 controls of US white ancestry with the Ion Torrent system. Identified SSc-associated variants were confirmed with Sanger sequencing, and then examined in a Chinese Han cohort consisting of 576 patients with SSc and 574 controls. TheNOTCH4variants were analyzed for association with SSc as a whole and with SSc clinical and autoantibody subtypes with and without the influence of specific HLA-class II alleles that had been previously identified as major genetic factors in SSc.

Results.

A total of 12 SSc-associated and SSc subtype–associated exonic variants ofNOTCH4were identified in the US cohort. Three of them are nonsynonymous single-nucleotide polymorphisms and 1 is a CTG tandem repeat that encodes for a poly-leucine, all of which are located in theNOTCH4extracellular domain (NECD). Conditional logistic regression analysis on SSc-associated HLA-class II alleles indicated an independent association of theNOTCH4variants with SSc autoantibody subtypes. Analysis of the Chinese cohort supported a genetic contribution ofNOTCH4to SSc and its subtypes.

Conclusion.

MultipleNOTCH4exonic variants were associated with SSc and/or SSc subtypes. Several of these variants encode nonsynonymous sequence changes occurring in the NECD, which implicates a potentially functional effect ofNOTCH4.
Utility of Anakinra in Acute Crystalline Diseases: A Retrospective Study Comparing a University Hospital with a Veterans Affairs Medical Center
Authors: Desmarais Julianna , Chu Cong-Qiu
Published: November 2018

Objective.

To evaluate the efficacy and safety of anakinra in inpatient management of acute gout and pseudogout.

Methods.

Hospitalized patients with acute gout (n = 77) or pseudogout (n = 11) or both (n = 3) were analyzed for response to anakinra and adverse effects.

Results.

Half of all patients had comorbidities limiting the treatment choice. Anakinra was well tolerated, and 92% of gout flares and 79% of pseudogout flares responded to treatment.

Conclusion.

Anakinra is an effective and safe treatment for acute gout and pseudogout in hospitalized patients, particularly in those with comorbidities.
Existe-t-il une beauté scientifique ?
Authors: Heinich Nathalie
Published: November 2018

Statut des jugements de valeur, critères de beauté : ces questions, relativement banales dans l’esthétique ou la philosophie de l’art, sont abordées ici selon les méthodes et les supports épistémiques fournis par une sociologie empirique, inductive et compréhensive, basée sur l’analyse des attitudes et des discours des acteurs en situation ordinaires afin d’éclairer leurs logiques et les significations qu’ils revêtent à leurs propres yeux. On découvre ainsi pourquoi et comment le jugement esthétique est marginalisé dans les critères utilisés par les chercheurs de l’Inventaire du patrimoine, et comment il réapparaît sous une forme non pas « esthète » mais « scientifique », comme un compromis entre la logique esthétique de l’administration patrimoniale et la logique scientifique de l’étude inventoriale.
Architecture et peinture dans la modernité : de l’unicité patrimoniale à la série artistique
Authors: Fartas Nadia
Published: November 2018

Dans le courant de patrimonialisation qui se développe durant le long xix e siècle la cathédrale gothique va occuper une place de premier plan. L’architecture devient un nouvel objet esthétique au rebours du culte des ruines. Pour autant le domaine du patrimoine et le domaine artistique se rejoignent-ils dès lors qu’il s’agit d’interroger l’unicité du bâtiment, son intégrité ? L’objet de cet article est de montrer comment la figure de la cathédrale cristallise les débats autour de la préservation du bâtiment historique qui questionnent l’essence de la bâtisse gothique, et comment dans les domaines artistique et esthétique, la célèbre série des Cathédrales de Monet, par son caractère pluriel, met à distance le caractère d’unicité alors conféré à ce monument.
L’ontologie sociale du patrimoine : Lascaux et le problème du temps
Authors: Leveau Pierre
Published: November 2018

Qu’est-ce que le patrimoine ? Après avoir examiné quelques ontologies temporelles, on montre que l’on peut le considérer comme un endurant ou un perdurant. En étudiant le cas de Lascaux, on tranche ce dilemme et on le définit comme un objet social. L’ontologie des processus que l’on présente peut s’appliquer à tous les patrimoines. Elle porte sur la « patrimonialisation », considérée comme un fait social. La réalité augmentée et la multiplication des fac-similés numériques lui assurent un bel avenir.
Patrimoine culturel immatériel et processus sociaux
Authors: Livet Pierre
Published: November 2018

Le patrimoine culturel immatériel (PCI) est fait d’usages et de leurs traces. Or les usages sont des processus, qui, en tant que processus, ne peuvent se reproduire à l’identique, ce qui leur donne un potentiel de variation, mais donnent lieu à reprises. La sauvegarde d’un PCI est elle-même un processus de reprise et de variation. Pour se repérer dans les complexités de cette ré-application, on peut s’appuyer sur les contraintes qui limitaient les usages d’une culture, qui sont moins dépendantes des réinterprétations, mais aussi sur les manières dont ces usages, reprises et variation, faisaient ou non réseau avec ceux d’autres PCI.
Effects of Non-Uniform Heat Source/Sink and Viscous Dissipation on MHD Boundary Layer Flow of Williamson Nanofluid through Porous Medium
Authors: Swain Kharabela , Parida Sampada Kumar , Dash G.C.
Published: November 2018

The effects of non-uniform heat source/sink and viscous dissipation on MHD boundary layer flow of Williamson nanofluid through porous medium under convective boundary conditions are studied. Surface transport phenomena such as skin friction, heat flux and mass flux are discussed besides the three boundary layers. The striking results reported as: increase in Williamson parameter exhibiting nanofluidity and external magnetic field lead to thinning of boundary layer, besides usual method of suction and shearing action at the plate, a suggestive way of controlling the boundary layer growth. It is easy to implement to augment the strength of magnetic field by regulating the voltage in the circuit. Also, addition of nano particle to the base fluid serves as an alternative device to control the growth of boundary layer and producing low friction at the wall. The present analysis is an outcome of Runge-Kutta fourth order method with a self corrective procedure i.e. shooting method.
Numerical Investigation of Mixed Convection Heat Transfer in Steady Flow Past a Row of Three Square Cylinders
Authors: Laidoudi Houssem , Blissag Bilal , Bouzit Mohamed
Published: November 2018

In this paper, the numerical simulations of laminar mixed convection heat transfer from row of three isothermal square cylinders placed in side-by-side arrangement are carried out to understand the behavior of fluid flow around those cylinders under gradual effect of thermal buoyancy and its effect on the evacuation of heat energy. The numerical results are presented and discussed for the range of these conditions: Re = 10 to 40, Ri = 0 to 2 at fixed value of Prandtl number of Pr = 1 and at fixed geometrical configuration. In order to analyze the effect of thermal buoyancy on fluid flow and heat transfer characteristics the main results are illustrated in terms of streamline and isotherm contours. The total drag coefficient as well as average Nusselt number of each cylinder are also computed to determine exactly the effect of buoyancy strength on hydrodynamic force and heat transfer evacuation of each cylinder.
Effect of Surface Radiation on Free Convection in Vertical Cylinders Partially Annular
Authors: Ould Said Belkacem , Medebber Mohamed Amine , Retiel Nourddine
Published: November 2018

The coupled of free convection with surface radiation in an annular region of two concentric vertical cylinders filled with air has been numerically investigated. The steady-state continuity, Navier–Stokes and energy equations were carried out by the finite volume method, and the Discrete Ordinates Method (DOM) was used to solve the radiative heat transfer equation (RTE). The computations have been performed for 103 ≤Ra≤ 106, with the emissivity coefficient of all the walls varying between 0 and 1. The influence of the both, Rayleigh numbers and emissivity coefficient of the wall for fixed height ratio X=0.5 on natural convection and radiation heat transfer in enclosure have been solved. The result shows that surface radiation significantly altered the temperature distribution and the flow patterns, especially at higher Rayleigh numbers. The average Nusselt number has also been discussed for different emissivity through the enclosure.
Die diakonale versorging van die ontwrigte kinders
Authors: Herbst A.B.v.N.
Published: November 2018

No abstract available.
Boekbespreking
Authors: Beukes M.J. , Botha S.J. , Pont A.D. , Van Wyk D.J.C.
Published: November 2018

No abstract available.
Amp en roeping
Authors: Pont A.D.
Published: November 2018

No abstract available.
Bekering van die heiden
Authors: Van Zyl F.J.
Published: November 2018

No abstract available.
Was die vorming van 'n eie kerkverband deur die kerk in Transvaal 1853 "sondige verskeurdheid"?
Authors: Müller J.J.P.
Published: November 2018

No abstract available.
Was die afskeiding onder ds F Lion Cachet van 1865/6 "sondige verskeurdheid?
Authors: Van der Westhuizen H.G.
Published: November 2018

No abstract available.
Die rol van die filosofie in die verandering van die samelewing
Authors: Dreyer P.S.
Published: November 2018

No abstract available.
Boekbespreking
Authors: Antonites A.J. , Beukes M.J. Du P. , Du Toit D.J.A.G. , Engelbrecht Johannes , Koekemoer J.H. , Koekemoer P.J. Theo , Van der Westhuizen H.G. , Viljoen C.J.
Published: November 2018

No abstract available.
Cytomegalovirus Retinitis Occurring as a Complication of HyperCVAD Chemotherapy: Report of Two Cases
Authors: Narayanan Geetha , Haridas Lakshmi , Soman Lali V
Published: November 2018

Cytomegalovirus (CMV) retinitis is usually diagnosed in patients with acquired immunodeficiency syndrome and in solid organ and hematopoietic stem cell transplant recipients. It produces a characteristic necrotizing retinitis which is a sight-threatening condition in these patients. CMV retinitis occurs rarely in patients undergoing only chemotherapy, and very few cases have been reported during the maintenance phase of acute lymphoblastic leukemia (ALL) in children. We report two patients, one with ALL and the other with Burkitt’s lymphoma on HyperCVAD chemotherapy developing CMV retinitis during the course of treatment. Both patients were treated with intravenous ganciclovir, oral valganciclovir and intravitreal ganciclovir. Both patients are alive in remission at 60 and 40 months, respectively, with preservation of normal vision.
Extensive Metastases in Prostatic Carcinoma with Normal Prostate-Specific Antigen and Raised Carcinoembryonic Antigen – Small Cell Carcinoma of Prostate: A Rare Entity
Authors: Khaladkar Sanjay Mhalasakant , Jain Kunaal Mahesh , Ghosh Arijit , Kuber Rajesh
Published: November 2018

Small cell carcinoma of prostate is a neuroendocrine tumor of prostate seen in 0.5%–2% of men with carcinoma prostate. Prostate-specific antigen (PSA) is a common tumor marker which is often raised in prostatic carcinoma. However, prostatic carcinoma can progress with normal or low serum PSA levels at the time of diagnosis. Carcinoembryonic antigen (CEA) is a tumor marker of different carcinomas. Small cell carcinoma prostate is a highly aggressive tumor which can progress with normal or low serum PSA levels and raised CEA levels. We report a case of 65-year-old male with enlarged prostate with extra-prostatic spread, hepatic metastases, metastatic retroperitoneal and pelvic lymph nodes, osteoblastic metastasis in lumbar spine with normal serum PSA, and raised CEA levels. Prostatic biopsy was suggestive of small cell carcinoma.
Incidence of Urogenital Neoplasms in India
Authors: Labani Satyanarayana , Rawat Dishank , Asthana Smita
Published: November 2018

Objective: To study and compare the national and regional incidences and risk of developing of neoplasms of individual urogenital sites using 2012 – 2014 reports from the National Cancer Registry Programme (NCRP) data. Materials and Methods: A number of incident cases, age-adjusted rates (AARs), and cumulative risk (0 – 64 years) pertaining to urogenital neoplasms, along with the ICD-10 codes, were extracted. Data on indicators, namely number of incident cases, AARs and one in a number of persons develop cancer were summarized for both the sexes in each of the cancer registries and presented region-wise in the form of ranges. Results: The proportion of all urogenital neoplasms in comparison to all cancers was 12.51% in women and 5.93% in men. Risk of development of urogenital cancers for women was maximum (1 in 50) in the North-eastern region, followed by Rural West, South, and North. For men, the risk of developing neoplasms of urogenital sites was highest (1 in 250). For the neoplasms of the renal pelvis and ureter, both the incidence and risk were quite low for all genders across all the regions. Cervical neoplasms had the highest incidence (4.91 – 23.07) among female genital neoplasms, while prostate had the highest incidence (0.82 – 12.39) among male genital neoplasms. Conclusion: Making people aware of urogenital neoplasms and their risk factors are important for the public health awareness point of view. Centers that deal with either management of urogenital cases or/and screening of genital neoplasms could serve as the designated centers for creating such awareness.
Recurrent Metastatic High-Grade Osteosarcoma: Disease Stabilization and Successful Pregnancy Outcome following Aggressive Multimodality Treatment
Authors: Khurana Monica , Gruner Barbara , Sathi Bindu Kanathezhath
Published: November 2018

Prognosis for refractory/recurrent metastatic osteosarcoma (OS) remains dismal with 3-year survival rates <20%. Achievement of more than 5 years of stable, refractory/recurrent metastatic OS disease in our patient is itself unique and attributable to multimodality therapy. Her high-dose chemotherapy regimen with alkylating agents did not lead to infertility, making her case even more unique. Successful disease stabilization and pregnancy outcome in our patient with metastatic multiple relapsed OS is one of the first cases published. We need further understanding and exploration of pathogenesis, chemoresistant mechanisms, and multimodality therapies including immunotherapy for OS.
Stauffer’s Syndrome: A Rare Paraneoplastic Syndrome with Renal Cell Carcinoma
Authors: Jain Mayank , Varghese Joy , Muruganandham K M , Venkataraman Jayanthi
Published: November 2018

An elderly male patient presented with cholestatic jaundice and weight loss. On evaluation, he was found to have left renal mass and hepatomegaly. Diagnosis of Stauffer’s syndrome was confirmed based on his clinical history, biochemical evaluation, and liver biopsy. Resolution of jaundice was noted after removal of the renal mass.
Teaching Sensor Technology and Crowdsourcing with Reusable Learning Objects
Authors: Mikhailova E. A. , Stiglitz R. Y. , Post C. J. , Pargas R. P. , Campbell T. M. , Payne K. S. , Cooper J. A.
Published: November 2018

Core Ideas

Reusable learning objects are self‐contained digital modules.

Reusable learning objects were developed for teaching soil color determination using a color sensor application and crowdsourcing.

Reusable learning objects were effective teaching tools.

Students positively described their perception of the sensor‐based method of soil testing.

Reusable learning objects (RLOs) are self‐contained digital modules commonly utilized in e‐learning. The purpose of this study is to develop RLOs for teaching soil color determination using a color sensor application: soil color, Soil Scanner application, global positioning system (GPS) location, color conversion, and crowdsourcing. Each RLO is a self‐contained learning unit with specific learning goals, educational materials, quiz, and assessment. Navigation of each object is controlled by the participant via tabs to allow the user to control the pace of the RLO. The quality of each RLO is assessed by a learning object review instrument (LORI) framework rubric. Online quizzes at the end of each RLO are used to examine the learning outcomes. This study also used the web‐based survey tool Qualtrics before and after the laboratory‐based activity to systematically measure various constructs including familiarity with sensors, crowdsourcing, and perception of the sensor‐based method of soil testing. Reusable learning objects were effective teaching tools as demonstrated by excellent scores (A) received by the students for all RLO quizzes. Each RLO scored well for each category of the LORI model framework assessment. Additional comments suggest that students were receptive to the RLOs as a learning tool. Students positively described their perception of the sensor‐based method of soil testing compared with the traditional method, a Munsell color chart.
Producción de lo común en cuatro organizaciones sociales autónomas
Authors: Gálvez Osorio Andrés , Berroeta Héctor , Castro Fernandez Natalia , Vergara Miranda Constanza , Alarcón Valenzuela Jaime
Published: November 2018

Los actuales horizontes de transformación social a escala planetaria y la crisis de participación política estado-céntrica han repercutido en las nociones de espacio público y lo común. En esta investigación cualitativa analizamos los significados en relación al espacio público y la acción política en el relato oral de cuatro organizaciones sociales autónomas de Valparaíso enfocadas en la amplificación y cuidado de espacios comunes. El análisis de contenidos y una posterior interpretación desde lo ch'ixi -como recurso epistemológico y metodológico- revelaron una noción de espacio público contenciosa, caracterizada como campo de apertura táctica en la relación con la política masculino dominante para el despliegue de políticas autónomas de gestión, decisión y usufructo común de la riqueza disponible en los espacios, en una dinámica que desborda las lógicas capitalistas y estado-céntricas impuestas sobre los mismos. Finalmente, se sugiere profundizar estudios para rastrear las capacidades colectivas y autónomas de gestión de los espacios, asumiendo la crítica al eurocentrismo y al patriarcado, en aras de comprender los horizontes de deseo y potencial práctico de las organizaciones de base comunitaria más allá de perspectivas estado-céntricas.
¿Cómo afrontan la violencia laboral los trabajadores/as chilenos/as?
Authors: Palma Contreras Andrea , Ahumada Muñoz Magdalena , Ansoleaga Moreno Elisa
Published: November 2018

La violencia laboral (VL) es un importante estresor laboral y produce graves consecuencias a nivel individual y organizacional. Los modos de afrontar la VL incluyen las medidas para prevenirla y enfrentarla a nivel individual, colectivo y organizacional. Estos modos de afrontar la VL modulan la relación entre ésta y los resultados de salud mental. La literatura ha estudiado preferentemente las consecuencias de la VL mientras que los modos de afrontarla y prevenirla han sido insuficientemente investigados, no existiendo estudios previos en Chile. El objetivo del artículo es analizar los modos de afrontar la violencia laboral en una muestra no probabilística intencional, secuencial, orientada conceptualmente de 70 trabajadoras y trabajadores chilenos a quienes se realizaron entrevistas en profundidad. El afrontamiento pasivo individual es el que predomina en los relatos de los entrevistados y entrevistadas; recurren al afrontamiento activo cuando el maltrato es reiterado. La mediación del sindicato, el apoyo de parte de compañeros y de la organización son valorados positivamente; y existen opiniones contradictorias frente a la gestión de parte de organismos estatales.
Revisión de estudios sobre violencias políticas realizados en la última década
Authors: Jorquera-Álvarez Tamara , Piper Shafir Isabel
Published: November 2018

Comenzando por teorizaciones clásicas sobre la violencia en el ámbito político, presentamos en este artículo los resultados de una revisión bibliográfica que tuvo como objetivo identificar y caracterizar los desarrollos actuales en torno a las violencias políticas contemporáneas. Esta revisión abarcó estudios publicados entre los años 2007 a 2016 en formato de artículos en revistas científicas, tesis o libros. Los resultados se agrupan en tres grandes temas: violencias de Estado, violencias de resistencia política y efectos de la violencia política en personas, grupos y sociedades. Para cada uno de ellos presentamos los subtemas que están siendo abordados en las publicaciones consultadas, indicando aportes relevantes e identificando aspectos menos investigados. A la luz de esta revisión, planteamos algunas claves para tener en consideración al estudiar las violencias políticas, que apuntan a sostener que se trata de una categoría socialmente construida e históricamente situada. Finalizamos proponiendo líneas de apertura para continuar esta línea de investigación explorando la posibilidad de analizar las violencias políticas contemporáneas como dispositivos en sentido foucaultiano.
Mediación del uso de tecnologías de información en una organización de salud colombiana
Authors: Tabares Quiroz Juliana , Correa Vélez Santiago Alberto , Herrera Caballero Juan Manuel , Loaiza Cardona Sergio Alberto
Published: November 2018

El objetivo de este artículo es analizar el proceso de implementación de tecnologías de información en salud, específicamente las historias clínicas electrónicas, en una organización de salud privada de la ciudad de Medellín, haciendo énfasis en el proceso de mediación social, que se desenvuelve entre los distintos actores para apropiarse y adecuar la tecnología implementada al contexto y a las necesidades de la organización. Para este fin, se realizó un estudio de caso interpretativo que incluyera la mirada de actores estratégicos, desarrolladores, facilitadores y usuarios de la tecnología involucrados en el proceso de implementación. Como resultados relevantes se observa que la mediación social del uso de la tecnología (MUT), implica considerar el rol de cada uno de los actores, sus relaciones, sus prácticas y los sentidos que construyen alrededor de las características y finalidades de la tecnología. Se concluye que este concepto puede contribuir a la gestión de la tecnología en las organizaciones debido a su gran potencial para analizar la intervención social en procesos emergentes de cambio.
Proceso metodológico y construcción de un sistema categorial de una investigación sobre identidad organizacional
Authors: Gonzales-Miranda Diego René , Uribe Correa Beatriz Amparo
Published: November 2018

En este documento se expone el proceso de construcción del modelo metodológico y de los sistemas categoriales relacionados con una investigación sobre la identidad organizacional de los mandos medios desde la perspectiva de los Estudios Organizacionales. Se describe el contexto de desarrollo del trabajo y, a la vez, se explica el estudio de caso específico que enmarca el análisis de los datos y los resultados. Se examina el marco teórico, fundamento del modelo metodológico del análisis pertinente. Se señalan los pasos transitados para construir las categorías de análisis y los sistemas de categorías que permiten darle sentido a los datos obtenidos para responder a los objetivos propuestos. Se trata del proceso metodológico que subyace a toda investigación y que pocas veces se hace explícito, lo que permitirá a otros investigadores tener un referente y alternativas para la realización de su propio proyecto de construcción de sentido, un aspecto primordial -sino el más importante- del proceso de aprendizaje de todo investigador.
Significados y representaciones de la minga para el pueblo indígena Pastos de Colombia
Authors: López Cortés Oscar
Published: November 2018

Este artículo presenta una revisión de literatura sobre la minga y los resultados del trabajo etnográfico sobre este aspecto realizado con el pueblo indígena de los Pastos. Se indagó qué otros sentidos de la vida cotidiana se encuentran asociados a la minga para los Pastos. Los relatos recolectados muestran que la práctica de la minga entre los Pastos subvierte el espacio y el tiempo en los cuales la ubican los textos académicos. Se concluye que la minga, no es solo una forma de trabajo comunitario o un mecanismo de movilización social y acción política, sino que es una herramienta que mantiene la memoria histórica al renovar constantemente los vínculos intersubjetivos de quienes la practican.
La descualificación del trabajo en tiendas por departamento
Authors: Stecher Antonio , Martinic Rodolfo
Published: November 2018

Se presenta los resultados de un estudio sobre la reorganización del proceso del trabajo de ventas implementado recientemente en las Tiendas por Departamentos de la industria del retail en Chile. Se utilizó el marco teórico de la Labor Process Theory y una perspectiva crítico-interpretativa de investigación social.  Se empleó una metodología de carácter cualitativo, realizándose 31 entrevistas semi-estructuradas a trabajadores de primera línea y 6 entrevistas a expertos en el rubro, que fueron analizadas mediante los procedimientos de codificación de la teoría fundamentada. Los resultados describen la reorganización del proceso de trabajo de ventas y de los modelos de atención al cliente en las tiendas, y analizan sus consecuencias en términos del nivel de la complejidad de las tareas y de la autonomía de los trabajadores, constatando una evidente tendencia hacia la descualificación. Se concluye que esta tendencia ha conllevado una degradación de las condiciones de trabajo y empleo del personal de venta, lo que es coincidente con la evidencia internacional respecto a transformaciones organizacionales y laborales recientes en el sector servicios y la industria del retail a nivel mundial.
Submicron aerosol composition in the world's most polluted
megacity: The Delhi Aerosol Supersite campaign
Authors: Gani Shahzad , Bhandari Sahil , Seraj Sarah , Wang Dongyu S. , Patel Kanan , Soni Prashant , Arub Zainab , Habib Gazala , Hildebrandt Ruiz Lea , Apte Joshua
Published: November 2018

Abstract. Delhi, India routinely experiences some of the world's highest urban particulate matter concentrations. We established the Delhi Aerosol Supersite campaign to provide long-term characterization of the ambient submicron aerosol composition in Delhi. Here we report on 1.25 years of highly time resolved speciated submicron particulate matter (PM1) data, including black carbon (BC) and non-refractory PM1 (NR-PM1), which we combine to develop a composition-based estimate of PM1 (“C-PM1” = BC + NR-PM1) concentrations. We observed marked seasonal and diurnal variability in the concentration and composition of PM1 owing to the interactions of sources and atmospheric processes. Winter was the most polluted period of the year with average C-PM1 mass concentrations of ~210 μg m−3. Monsoon was hot and rainy, consequently making it the least polluted (C-PM1 ~50 μg m−3) period. Organics constituted more than half of the C-PM1 for all seasons and times of day. While ammonium, chloride and nitrate each were ~10% of the C-PM1 for the cooler months, BC and sulfate contributed ~5% each. For the warmer periods, the fractional contribution of BC and sulfate to C-PM1 increased and the chloride contribution decreased to less than 2%. The seasonal and diurnal variation in absolute mass loadings were generally consistent with changes in ventilation coefficients, with higher concentrations for periods with unfavorable meteorology—low planetary boundary layer height and low wind speeds. However, the variation in C-PM1 composition was influenced by temporally varying sources, photochemistry and gas-particle partitioning. During cool periods when wind was from the northwest, episodic hourly averaged chloride concentrations reached 50–100 μg m−3, ranking among the highest chloride concentrations reported anywhere in the world. We estimated the contribution of primary emissions and secondary processes to Delhi's submicron aerosol. Secondary species contributed almost 50–70% of Delhi's C-PM1 mass for the winter and spring months, and up to 60–80% for the warmer summer and monsoon months. For the cooler months that had the highest C-PM1 concentrations, the nighttime sources were skewed towards primary sources, while the daytime C-PM1 was dominated by secondary species. Overall, these findings point to the important effects of both primary emissions and more regional atmospheric chemistry on influencing the extreme particle concentrations that impact the Delhi megacity region. Future air quality strategies considering Delhi's situation in both a regional and local context will be more effective than policies targeting only local, primary air pollutants.
Non-linear Effects in Electromagnetic Wave Activity Observed in the RELEC Experiment on-board Vernov Mission
Authors: Panasyuk Mikhail I. , Svertilov Sergey I. , Klimov Stanislav I. , Grushin Valery A. , Novikov Denis I. , Ruzhin Yuri Y. , Mikhailov Yuri M. , Ferencz Csaba , Szegedi Peter , Korepanov Valery E. , Bogomolov Vitaly V. , Garipov Gali K. , Belyayev Serhiy V. , Demidov Olexander N.
Published: November 2018

Abstract. The experiments on-board Vernov satellite were aimed on the study of high energy (relativistic and sub-relativistic) electron acceleration and losses in the trapped radiation areas as well as high altitude electric discharges in the upper Atmosphere. A separate task was study electromagnetic-wave phenomena in the near Earth space and the upper Atmosphere. During observations on 10 December 2014 interesting phenomena were discovered. They are connected to non-linear effects in wave activity of the type of two or three wave decays as well as splitting into two wave structures. Whistlers with specific unusual temporal structure of swallowtail type were observed on the spectral diagrams (sonograms), which were obtained for this time. It was shown that such signals can be caused by seismic activity. The signals of the type of whistler with long tail were also observed. Such signals were also detected by ground stations.