bluuebunny/crossref_metadata_2025 huggingface dataset:
FACILITIES MANAGEMENT MULTIPLE CRITERIA ANALYSIS/PASTATŲ ŪKIO VALDYMO DAUGIAKRITERINĖ ANALIZĖ
Authors: Zavadskas Edmundas Kazimieras , Kaklauskas Artūras , Lepkova Natalija , Zalatorius Juozas
Published: March 2019

There are many definitions of facilities management. Wes McGregor and Danny Shiem-Shim Then describe facilities management (FM) as „the infrastructure that supports the people in the organization in their endeavours to achieve business goals”. In other words, facilities are the tools which people in the business have at their disposal to carry out their tasks.

The Library of Congress (USA) provides an initial definition that is often quoted to explain the breadth of the field of facilities management: “The practice of coordinating the physical workplace with the people and work of the organization; integrates the principles of business administration, architecture and the behavioural and engineering sciences”.

One of the most exact definitions of Facility Management used by F. Becker is: “Facility Management is a term which encompass the activities in planning, designing and managing complex facilities such as offices, hospitals and schools, differ from architecture and interior design”.

The scope of the discipline covers all aspects of property, space, environmental control, health and safety, and support services, and requires that appropriate control point are established in the organization.

The article presents an example of multiple criteria analysis of commerce centre in Vilnius. Initial data are given in Tables 1 and 2. A comparison of premises lease alternatives is carried out: from the tenant point of view and from that of the owner. The result—the best variant for tenants and owner is to rent the premises with all services.
Topological Structures of Velocity and Electric Field in the Vicinity of a Cusp-type Magnetic Null Point
Authors: Nickeler Dieter H. , Karlický Marian , Kraus Michaela
Published: March 2019

Topological characteristics reveal important physical properties of plasma structures and astrophysical processes. Physical parameters and constraints are linked with topological invariants, which are important for describing magnetic reconnection scenarios. We analyze stationary nonideal Ohm’s law concerning the Poincaré classes of all involved physical fields in two dimensions by calculating the corresponding topological invariants of their Jacobian (here: particularly the eigenvalues) or Hessian matrices. The magnetic field is assumed to have a cusp structure, and the stagnation point of the plasma flow coincides with the cusp. We find that the stagnation point must be hyperbolic. Furthermore, the functions describing both the resistivity and the ohmic heating have a saddle-point structure, being displaced with respect to the cusp point. These results imply that there is no monotonous relation between current density and anomalous resistivity in the case of a two-dimensional standard magnetic cusp.
ALMA CO Observations of Supernova Remnant N63A in the Large Magellanic Cloud: Discovery of Dense Molecular Clouds Embedded within Shock-ionized and Photoionized Nebulae
Authors: Sano H. , Matsumura H. , Nagaya T. , Yamane Y. , Alsaberi R. Z. E. , Filipović M. D. , Tachihara K. , Fujii K. , Tokuda K. , Tsuge K. , Yoshiike S. , Onishi T. , Kawamura A. , Minamidani T. , Mizuno N. , Yamamoto H. , Inutsuka S. , Inoue T. , Maxted N. , Rowell G. , Sasaki M. , Fukui Y.
Published: March 2019

We carried out new 12CO(J = 1–0, 3–2) observations of a N63A supernova remnant (SNR) from the LMC using the Atacama Large Millimeter/submillimeter Array (ALMA) and Atacama Submillimeter Telescope Experiment. We find three giant molecular clouds toward the northeast, east, and near the center of the SNR. Using the ALMA data, we spatially resolved clumpy molecular clouds embedded within the optical nebulae in both the shock-ionized and photoionized lobes discovered by previous Hα and [S ii] observations. The total mass of the molecular clouds is ∼800 M
☉ for the shock-ionized region and ∼1700 M
☉ for the photoionized region. Spatially resolved X-ray spectroscopy reveals that the absorbing column densities toward the molecular clouds are ∼(1.5–6.0) × 1021 cm−2, which are ∼1.5–15 times less than the averaged interstellar proton column densities for each region. This means that the X-rays are produced not only behind the molecular clouds, but also in front of them. We conclude that the dense molecular clouds have been completely engulfed by the shock waves, but have still survived erosion owing to their high density and short interacting time. The X-ray spectrum toward the gas clumps is well explained by an absorbed power-law model or a high-temperature plasma model, in addition to thermal plasma components, implying that the shock-cloud interaction is efficiently working for both cases through the shock ionization and magnetic field amplification. If the hadronic gamma-ray is dominant in the GeV band, the total energy of the cosmic-ray protons is calculated to be ∼(0.3–1.4) × 1049 erg, with an estimated interstellar proton density of ∼190 ± 90 cm−3, containing both the shock-ionized gas and neutral atomic hydrogen.
Calibration of Gamma-Ray Burst Luminosity Correlations Using Gravitational Waves as Standard Sirens
Authors: Wang Y. Y. , Wang F. Y.
Published: March 2019

Gamma-ray bursts (GRBs) are a potential tool to probe the high-redshift universe. However, the circularity problem has encouraged people to find model-independent methods to study the luminosity correlations of GRBs. Here, we present a new method that uses gravitational waves (GWs) as standard sirens to calibrate GRB luminosity correlations. For the third-generation ground-based GW detectors (i.e., Einstein Telescope—ET), the redshifts of GW events accompanying electromagnetic counterparts can reach out to ∼4, which is more distant than type Ia supernovae (z ≲ 2). The Amati relation and Ghirlanda relation are calibrated using the mock GW catalog from ET. We find that the 1σ uncertainty of intercepts and slopes of these correlations can be constrained to less than 0.2% and 8% respectively. Using calibrated correlations, the evolution of the dark energy equation of state can be tightly measured, which is important for discriminating dark energy models.
Gemini GNIRS Near-infrared Spectroscopy of 50 Quasars at z ≳ 5.7
Authors: Shen Yue , Wu Jin , Jiang Linhua , Bañados Eduardo , Fan Xiaohui , Ho Luis C. , Riechers Dominik A. , Strauss Michael A. , Venemans Bram , Vestergaard Marianne , Walter Fabian , Wang Feige , Willott Chris , Wu Xue-Bing , Yang Jinyi
Published: March 2019

We report initial results from a large Gemini program to observe z ≳ 5.7 quasars with GNIRS near-IR spectroscopy. Our sample includes 50 quasars with simultaneous ∼0.85–2.5 μm spectra covering the rest-frame ultraviolet and major broad emission lines from Lyα to Mg ii. We present spectral measurements for these quasars and compare with their lower redshift counterparts at z = 1.5–2.3. We find that when quasar luminosity is matched, there are no significant differences between the rest-UV spectra of z ≳ 5.7 quasars and the low-z comparison sample. High-z quasars have similar continuum and emission line properties and occupy the same region in the black hole mass and luminosity space as the comparison sample, accreting at an average Eddington ratio of ∼0.3. There is no evidence for super-Eddington accretion or hypermassive (>1010
M
⊙) black holes within our sample. We find a mild excess of quasars with weak C iv lines relative to the control sample. Our results, corroborating earlier studies but with better statistics, demonstrate that these high-z quasars are already mature systems of accreting supermassive black holes operating with the same physical mechanisms as those at lower redshifts.
Microchirita hairulii (Gesneriaceae), a new species from Perlis, Peninsular Malaysia
Authors: Abdul Rahman Rafidah
Published: March 2019

A new species, Microchiritahairulii Rafidah (Gesneriaceae) from limestone hills in Perlis, Peninsular Malaysia, is described and illustrated. Diagnostic characters, description, detailed illustrations, geographical distribution, regional provisional conservation status assessment (Endangered) and ecological observations of the new taxon, as well as an updated key to Microchirita species in Peninsular Malaysia, are provided.
Cambaloid millipedes of Tasmania, Australia, with remarks on family-level classification and descriptions of two new genera and four new species (Diplopoda, Spirostreptida)
Authors: Mesibov Robert
Published: March 2019

The Southern Hemisphere cambaloid millipede genera are here assigned or re-assigned to the families Cambalidae Bollman, 1893 and Iulomorphidae Verhoeff, 1924.Tasmanocambalais erected for the three Tasmanian cambalids,T.greenigen. n., sp. n.(type species),T.tasmanicasp. n.andT.taylorisp. n.The new genus is distinguished by a thin, transverse tab at the tip of the anterior gonopod telopodite with a comb of setae immediately behind the tab. The iulomorphidTalomiusweldensisgen. n., sp. n.is described from a single site in Tasmania’s southern mountain district. The new species is unusual among the Australian Iulomorphidae in having a fully-developed, ambulatory leg 1 in the male, and small, compact gonopods.
Progression of Left Ventricular Myocardial Dysfunction in Systemic Sclerosis: A Speckle-tracking Strain Echocardiography Study
Authors: van Wijngaarden Suzanne E. , Ben Said-Bouyeri Samira , Ninaber Maarten K. , Huizinga Tom W.J. , Schalij Martin J. , Bax Jeroen J. , Delgado Victoria , de Vries-Bouwstra Jeska K. , Marsan Nina Ajmone
Published: March 2019

Objective.

Cardiac involvement is a main cause of mortality in systemic sclerosis (SSc). Its detection remains challenging using conventional echocardiography and little is known about its potential progression. This study assessed changes in cardiac performance over time in a prospective cohort of patients with SSc, including echocardiographic speckle-tracking strain analysis.

Methods.

The study included 234 patients with SSc [196 women, age 52 ± 14 yrs, 165 limited SSc, time since diagnosis 5.2 yrs, interquartile range (IQR) 2.9–11.3]. Clinical variables, laboratory tests, pulmonary function tests, and echocardiographic measures were recorded at baseline and followup (median 2.3 yrs, IQR 1.3–3.9). Additionally, left ventricular (LV) systolic function was assessed with global longitudinal strain (GLS) by echocardiographic speckle-tracking analysis.

Results.

At followup, GLS had significantly worsened (−21% ± 2 vs −19% ± 2, p < 0.001) while LV ejection fraction had not changed (62% ± 7 vs 61% ± 8, p = 0.124). In particular, 39 patients showed a significant deterioration of GLS as defined by a ≥ 15% decrease, which was accompanied by a concomitant worsening of proximal muscle weakness, lung fibrosis, renal function, LV diastolic function, and right ventricular systolic function. Baseline variables associated with ≥ 15% deterioration in GLS were proximal muscle weakness (OR 3.437, 95% CI 1.13–10.43, p = 0.020), decreased DLCO (OR 3.621, 95% CI 1.25–10.51, p = 0.049), and LV diastolic dysfunction (OR 2.378, 95% CI 1.07–5.27, p = 0.033).

Conclusion.

In patients with SSc, progression of LV systolic dysfunction was demonstrated by GLS but not by LV ejection fraction. Proximal muscle weakness, DLCO, and LV diastolic dysfunction may identify patients at risk for progressive LV systolic dysfunction and in need of closer cardiac monitoring.
Feasibility and Construct Validation of the Patient Reported Outcomes Measurement Information System in Systemic Vasculitis
Authors: Tomasson Gunnar , Farrar John T. , Cuthbertson David , McAlear Carol A. , Ashdown Susan , Cronholm Peter F. , Dawson Jill , Gebhart Don , Lanier Georgia , Luqmani Raashid A. , Milman Nataliya , Peck Jacqueline , Robson Joanna C. , Shea Judy A. , Carette Simon , Khalidi Nader , Koening Curry L. , Langford Carol A. , Monach Paul A. , Moreland Larry , Pagnoux Christian , Specks Ulrich , Sreih Antoine G. , Ytterberg Steven R. , Merkel Peter A. ,   for the Vasculitis Clinical Research Consortium
Published: March 2019

Objective.

The Patient Reported Outcome Measurement Information System (PROMIS) is a collection of item banks of self-reported health. This study assessed the feasibility and construct validity of using PROMIS instruments in vasculitis.

Methods.

Data from a multicenter longitudinal cohort of subjects with systemic vasculitis were used. Instruments from 10 PROMIS item banks were selected with direct involvement of patients. Subjects completed PROMIS instruments using computer adaptive testing (CAT). The Medical Outcomes Study Short Form-36 (SF-36) was also administered. Cross-sectional construct validity was assessed by calculating correlations of PROMIS scores with SF-36 measures and physician and patient global scores for disease activity. Longitudinal construct validity was assessed by correlations of between-visit differences in PROMIS scores with differences in other measures.

Results.

During the study period, 973 subjects came for 2306 study visits and the PROMIS collection was completed at 2276 (99%) of visits. The median time needed to complete each PROMIS instrument ranged from 40 to 55 s. PROMIS instruments correlated cross-sectionally with individual scales of the SF-36, most strongly with subscales of the SF-36 addressing the same domain as the PROMIS instrument. For example, PROMIS fatigue correlated with both the physical component score (PCS; r = −0.65) and with the mental component score (MCS; r = −0.54). PROMIS physical function correlated strongly with PCS (r = 0.81) but weakly with MCS (r = 0.29). Weaker correlations were observed longitudinally between change in PROMIS scores with change in PCS and MCS.

Conclusion.

Collection of data using CAT PROMIS instruments is feasible among patients with vasculitis and has some cross-sectional and longitudinal construct validity.
Ethnic Variations in Systemic Sclerosis Disease Manifestations, Internal Organ Involvement, and Mortality
Authors: Al-Sheikh Haifa , Ahmad Zareen , Johnson Sindhu R.
Published: March 2019

Objective.

A multiethnic systemic sclerosis (SSc) cohort study to evaluate ethnic variations in disease manifestations, internal organ involvement, and survival.

Methods.

Adults who fulfilled the American College of Rheumatology/European League Against Rheumatism classification criteria for SSc between 1970 and 2017 were included. Self-reported ethnicity was categorized as European-descent white, Afro-Caribbean, Hispanic, Arab, East Asian, South Asian, First Nations, or Persian. The primary outcome was the time from diagnosis to death from all causes. Survival probabilities and median survival times were determined using Kaplan-Meier survival curves.

Results.

There were 1005 subjects evaluated, the majority of whom were European-descent white (n = 745, 74%), Afro-Caribbean (n = 58, 6%), South Asian (n = 70, 7%), and East Asian (n = 80, 8%). Compared to European-descent white subjects, East Asians less frequently had calcinosis (29% vs 9%, p = 0.002) and esophageal dysmotility (88% vs 69%, p = 0.002); Afro-Caribbeans more frequently had interstitial lung disease (31% vs 53%, p = 0.007); and First Nations subjects more frequently had diffuse cutaneous disease (35% vs 56%, p = 0.02) and diabetes (5% vs 33%, p = 0.03). We found no difference in the short-term survival across ethnicities. Hispanic subjects have better longterm survival (81.3%, 95% CI 63–100) compared to European-descent white subjects (55%, 95% CI 51–60). East Asians appear to have the longest median survival time (43.3 yrs) and Arabs the shortest median survival time (15 yrs). There was no significant difference in median survival times between Afro-Caribbean and European-descent white subjects (22.2 vs 22.6 yrs).

Conclusion.

Ethnic variations in some SSc disease manifestations are observed. However, this does not result in significant differences in short-term survival but may affect longterm survival.
Neutropenia During Tocilizumab Treatment Is Not Associated with Infection Risk in Systemic or Polyarticular-course Juvenile Idiopathic Arthritis
Authors: Pardeo Manuela , Wang Jianmei , Ruperto Nicolino , Alexeeva Ekaterina , Chasnyk Vyacheslav , Schneider Rayfel , Horneff Gerd , Huppertz Hans-Iko , Minden Kirsten , Onel Karen , Zemel Lawrence , Martin Alan , Koné-Paut Isabelle , Siamopoulou-Mavridou Antigoni , Silva Clovis A. , Porter-Brown Benjamin , Bharucha Kamal N. , Brunner Hermine I. , De Benedetti Fabrizio
Published: March 2019

Objective.

To determine whether neutropenia is associated with increased risk for infection in patients with systemic juvenile idiopathic arthritis (sJIA) and polyarticular-course juvenile idiopathic arthritis (pcJIA) treated with tocilizumab (TCZ).

Methods.

Data up to Week 104 from 2 phase III trials of intravenous TCZ in sJIA (n = 112;ClinicalTrials.gov,NCT00642460) and pcJIA (n = 188;ClinicalTrials.gov,NCT00988221) were pooled. Worst common toxicity criteria grade and lowest observed absolute neutrophil count (ANC) were identified for each patient. Associations between patient characteristics and lowest observed ANC were tested using univariate regression analysis. Infection and serious infection rates per 100 patient-years (PY) in periods associated with grades 1/2 and 3/4 neutrophil counts were compared with rates associated with normal neutrophil counts.

Results.

ANC decreased to grade ≥ 3 in 25.0% and 5.9% of sJIA and pcJIA patients, respectively, and decreases were transient. Young age (p = 0.047) and methotrexate use (p = 0.012) were positively associated with neutropenia in patients with sJIA but not in patients with pcJIA. The rate of serious infections in patients with sJIA (10.9/100 PY; 95% CI 6.8–16.5) tended to be higher than in patients with pcJIA (5.2/100 PY; 95% CI 3–8.5). No increase in rates of serious or nonserious infections was observed during periods of neutropenia in either trial.

Conclusion.

Patients with JIA treated with TCZ experienced transient neutropenia that was not associated with an increased number of infections.
Treatment of Dactylitis and Enthesitis in Psoriatic Arthritis with Biologic Agents: A Systematic Review and Metaanalysis
Authors: Mourad Ahmed , Gniadecki Robert
Published: March 2019

Objective.

Biologic agents with different mechanisms of action [inhibitors of tumor necrosis factor-α (TNF-α), interleukin (IL)-12/23, and IL-17] showed efficacy in randomized controlled trials (RCT) in the treatment of psoriatic arthritis. We conducted a pooled metaanalysis of these agents for treatment of dactylitis and enthesitis and compared results with the American College of Rheumatology 20 (ACR20) response and Health Assessment Questionnaire–Disability Index (HAQ-DI) scores.

Methods.

A systematic literature search was performed and a pooled metaanalysis of RCT with anti-TNF-α (infliximab, golimumab, adalimumab), anti–IL-12/23 (ustekinumab), and anti–IL-17 (secu kinumab, ixekizumab) was conducted using the random-effects model. Bias was assessed using the Cochrane risk-of-bias tool.

Results.

Eighteen RCT were included in the pooled analysis (n = 6981). Both TNF-α inhibitors and novel biologics (ustekinumab, secukinumab, ixekizumab) demonstrated significant resolution of dactylitis at Week 24 with pooled risk ratios (RR) versus placebo of 2.57 (95% CI 1.36–4.84) and 1.88 (95% CI 1.33–2.65), respectively. For resolution of enthesitis at Week 24, RR for TNF-α inhibitors was 1.93 (95% CI 1.33–2.79) versus 1.95 (95% CI 1.60–2.38) for novel biologics. Both biologic categories showed overlapping ranges of ACR20 responses (TNF-α inhibitors: RR = 2.23, 95% CI 1.60–3.11; pooled IL-12/23 and −17: RR = 2.30, 95% CI 1.94–2.72) and similar quality of life improvement scores with mean HAQ-DI score changes of −0.29 (95% CI −0.39 to −0.19) and −0.26 (95% CI −0.31 to −0.22), respectively.

Conclusion.

The pooled analysis demonstrated that anti–TNF-α agents have the same efficacy as novel agents (ustekinumab, secukinumab, and ixekizumab) in dactylitis and enthesitis.
Appropriateness and Total Hip Arthroplasty: Determining the Structure of the American Academy of Orthopaedic Surgeons System of Classification
Authors: Riddle Daniel L. , Perera Robert A.
Published: March 2019

Objective.

In late 2017, the American Academy of Orthopaedic Surgeons (AAOS) published an appropriateness classification system using the RAND/University of California, Los Angeles (UCLA) approach for patients with hip osteoarthritis (OA). We determined the contribution of predictor variables in the system to final classification, rated as “appropriate,” “may be appropriate,” or “rarely appropriate” for hip arthroplasty.

Methods.

An AAOS-appointed expert panel developed 270 clinical vignettes incorporating all permutations of 5 evidence-driven indication variables associated with hip arthroplasty outcome or need. Indication variables were age, function-limiting pain severity, radiographic hip OA severity, hip motion, and presence of modifiable prognostic risk factors. Multinomial regression determined the relative contribution of each variable and a classification tree method determined variable combinations contributing to final classification.

Results.

Patient age and hip OA severity were the dominant predictors of appropriateness classification in both statistical models. Function-limiting pain made a slight contribution relative to age and hip OA severity while hip motion and the presence of modifiable prognostic factors did not meaningfully contribute to final classification. The regression model explained about 99% of the variance and the classification tree had an accuracy of 87.8%.

Conclusion.

Classification for hip arthroplasty appropriateness in the AAOS system is driven almost exclusively by age and OA severity. Function-limiting pain, a major reason patients seek surgery, contributes only slightly to the AAOS appropriateness criteria. The system relies heavily on traditional variables of patient age and radiographic hip OA severity. Future study of actual patient outcomes is needed to further test the validity of the AAOS system.
Uptake of the OMERACT-OARSI Hip and Knee Osteoarthritis Core Outcome Set: Review of Randomized Controlled Trials from 1997 to 2017
Authors: Smith Toby O. , Mansfield Michael , Hawker Gillian A. , Hunter David J. , March Lyn M. , Boers Maarten , Shea Beverley J. , Christensen Robin , Guillemin Francis , Terwee Caroline B. , Williamson Paula R. , Roos Ewa M. , Loeser Richard F. , Schnitzer Thomas J. , Kloppenburg Margreet , Neogi Tuhina , Ladel Christoph H. , Kalsi Gurdyal , Kaiser Ulrike , Buttel Thomas W. , Ashford Anne E. , Mobasheri Ali , Arden Nigel K. , Tennant Alan , Hochberg Marc C. , de Wit Maarten , Tugwell Peter , Conaghan Philip G.
Published: March 2019

Objective.

To assess the uptake of the OMERACT-OARSI (Outcome Measures in Rheumatology- Osteoarthritis Research Society International) core outcome set (COS) domains in hip and/or knee osteoarthritis (OA) trials.

Methods.

There were 382 trials of hip and/or knee OA identified from the ClinicalTrial.gov registry from 1997 to 2017. Frequency of COS adoption was assessed by year and per 5-yearly phases.

Results.

COS adoption decreased from 61% between 1997 and 2001 to 38% between 2012 and 2016. Pain (95%) and physical function (86%) were most consistently adopted. Patient’s global assessment (48%) was the principal missing domain.

Conclusion.

Limited adoption of the COS domains indicates that further consideration to improve uptake is required.
The flipped learning model in online based education for secondary teachers
Authors: Romero María del Carmen , Buzón-García Olga , Touron Javier
Published: March 2019

The online-based model known as “flipped learning” raises new challenges that are different from those of face-to-face teaching. The flipped learning model enhances the active and autonomous learning of students, changes the relationships between them and with the teacher, and encourages innovation within the learning process. The following paper presents a descriptive, poll-based study after having implemented the model in the Curricular design course offered in two different departments, Mathematics and Technology and Computer Science, as part of the Master's Degree program in Secondary Education Teacher Training, taught online by the International University of La Rioja (UNIR). For this purpose, we have designed a learning model with a series of stages based on the events proposed by Gagné for the design of a teaching unit. In order to analyze the impact that the model has on student performance, the final grades obtained by the students are collected after individually designing a didactic unit, as required to demonstrate their learning, analyzing the difference between the control group and those participating in the designing experience. The results revolve around several axes, such as student satisfaction, the training they received, the perceived usefulness of the training received, the evaluation of the entire training process as it was carried out, and the performance achieved. This model ensures that the student is satisfied with and finds the usefulness of the training received, attains better academic performance and fosters very positive attitudes among the students as a whole.
Virtual flipped classroom: New teaching model to grant the learners knowledge and motivation
Authors: Ahmed Sameh , Abdulla Shubair A.
Published: March 2019

This research introduces new pedagogical approach, the Virtual Flipped Classroom (VFC). The VFC is an integration of two concepts: Flipped Classroom and Virtual Classroom. It enables the teachers to teach and guide the students in applying the activities needed to achieve best learning levels. To investigate the effect of VFC, the researchers applied it on the students of computer programming course in Instructional and Learning Technology (ILT) department at College of Education, Sultan Qaboos University (SQU). The students’ learning achievement and motivation were measured by two instruments, Programming Achievement Test and Survey of Student Motivation respectively. One-group pretest-posttest qusai-experimental design has been followed. The sample, which consisted of 18 students, was taught some selective topics of the computer programming perquisite using the VFC model. A pretest and posttest are administered before and after using the VFC model. The researchers used independent sample t-test and multivariate analysis of variance (MANOVA) to analyze the data obtained. Findings indicated a significant difference in the learning achievement and motivation before and after applying the VFC model. The differences were in favor of VFC model. Further analysis showed that the new model contributed to the improvement of performance of low achievers students.
Learning styles, study habits and academic performance of Filipino University students in applied science courses: Implications for instruction
Authors: Magulod Gilbert
Published: March 2019

In order to better prepare university students as proficient, versatile and productive information and industrial technologists in the 21st century, the need to implement instructional strategies and activities naturally align with their predispositions will make them better learners. This study examined the learning style preferences, study habits and level of academic achievement of students enrolled in applied science courses of Cagayan State University at Lasam, Philippines.  The study employed descriptive correlational research design to a total of seventy-five respondents who were purposively sampled. Two sets of standardized instruments were utilized by the researcher. Results of the study revealed that the students of applied sciences courses preferred visual, group and kinesthetic as major learning styles while they manifest a moderate level of study habits. They also have a good level of academic achievement. Test of difference revealed that academic performance, father's occupation and type of high school graduated from spelled significant differences in their perceptual learning styles. They also spelled differences in their study habits when grouped according to academic standing in high school, writing skills, mothers’ education, and test anxiety. Finally, there were significant relationships between learning styles, study habits and academic performance of students in applied science courses. The implications of the study can guide instructors plan and deliver suitable instructional interventions.
Citizen Science Observations Reveal Long-Term Population Trends of Common and Pacific Loon in Urbanized Alaska
Authors: McDuffie Laura A. , Hagelin Julie C. , Snively Marian L. , Pendleton Grey W. , Taylor Audrey R.
Published: March 2019

For more than 30 y, the Alaska Loon Watch (1985–1999) and the Alaska Loon and Grebe Watch (2000–2015) engaged citizen scientist participants to record more than 10,000 observations of common loons Gavia immer and Pacific loons Gavia pacifia at 346 lakes in five subregions of southcentral Alaska. We used generalized linear mixed models to estimate long-term trends in adult loon counts and chick survival and examined environmental variables associated with loon abundance. Adult common loon counts increased in all five subregions by 0.6–3.6% annually, whereas Pacific loons decreased 3% in the Anchorage subregion, but otherwise had trends not distinguishable from zero. Lake area was positively associated with common loon abundance and negatively associated with Pacific loon abundance. We also noted an inverse relationship between common loon and Pacific loon presence, consistent with the premise of interspecific competition. We did not find strong relationships between loon presence and predictor variables indicative of human disturbance or lakeshore development. Estimates of chick survival over time also revealed no clear pattern, although common loon chicks showed a decline in survival over the study period in one subregion. Citizen science programs provide agencies with a cost-effective tool to collect data over large spatial and temporal extents, which may not be feasible otherwise. However, there are ramifications of common data deficiencies associated with casual or unstructured observations, which can violate the assumptions required for rigorous statistical analysis. The implementation of a carefully predefined sampling protocol can avoid sampling bias, eliminate stringent assumptions, and ensure higher information content of citizen science data.
La vie du Buddha
Authors: Ducœur Guillaume
Published: March 2019

Le Lalitavistara sūtra ou Sūtra du développement des jeux du Bodhisattva représente l'une des biographies traditionnelles du Buddha historique. Connu en Asie dès les premiers siècles de l'ère chrétienne, puis en Europe à partir du XIXe siècle, ce classique de la littérature bouddhique fut traduit plusieurs fois en chinois sous les dynasties Jin et Tang et inspira les artistes du Gandhāra (Pakistan) comme ceux de Borobudur (Indonésie).Basé sur la lecture du texte sanskrit et de ses traductions chinoises, le commentaire proposé dans ce volume permet de se familiariser avec cette œuvre unique issue de la doctrine nouvelle du mahāyāna, ou grand véhicule, tout en perpétuant des épisodes biographiques du Buddha des écoles anciennes. Sont ainsi abordés les différents genres littéraires, la structure du sūtra, les sources textuelles et mythologiques qui ont inspiré son auteur, ainsi que les thèmes de la souffrance, de l’impermanence, des jeux du Bodhisattva, etc. Ce parcours d’ensemble invite à mieux comprendre la manière dont la vie du Buddha a été écrite.
Withshare
Authors: Chen Jiawei , Hanrahan Benjamin V. , Carroll John M
Published: March 2019

Coproductions are reciprocal activities that all parties are actively engaged in and create synergies that cannot be produced by one party alone. Coproduction activities are important for community building, as the social interactions among community members create social values such as new social ties, trust and reciprocal recognition. Mobile technologies bring new opportunity for coproductions by supporting small-scale reciprocal activities that are location and time sensitive. In this article, the authors introduce and study WithShare, a smartphone application that helps people to organize such coproduction activities. A 3-week user study with 38 young adults in a local community of college students shows WithShare facilitates the coordination of opportunistic and lightweight reciprocal activities in their daily life. The results highlight potentials of coproduction activities in strengthening existing social ties, and establishing new weak ties in the local community. The findings suggest important design implications for mobile technologies to support coproduction activities.
Patients’ Perception of Stressful Events in the Intensive Care Unit After Cardiac Surgery
Authors: Carey Mary G. , Qualls Brandon W. , Burgoyne Colleen
Published: March 2019

Background

Subjecting patients to stress has potentially detrimental effects on their physical and psychological recovery.

Objective

To identify stress-generating experiences that occur in an intensive care unit for patients after cardiac surgery.

Methods

A sample of 16 patients in a 14-bed cardiovascular intensive care unit at a university hospital in upstate New York completed a questionnaire (based on an established survey) asking them to rate 23 experiences on a Likert scale of 0 to 4. All patients were adults and had undergone coronary artery bypass graft surgery. After surgery, they were extubated and completed the questionnaire within 12 to 24 hours.

Results

Patients reported pain to be the most stressful experience, followed by presence of an endotracheal tube and sleeplessness.

Conclusions

With pain, endotracheal intubation, and sleeplessness identified as highly distressing to patients, further research can be done to elicit interventions that could alleviate some of the stress involved with a postoperative stay in an intensive care unit.
Surrogates’ and Researchers’ Assessments of Prehospital Frailty in Critically Ill Older Adults
Authors: Hope Aluko A. , Munoz Missiel , Hsieh S. J. , Gong Michelle Ng
Published: March 2019

Background

Prehospital frailty has been associated with adverse hospital outcomes in critically ill adults. Although frailty assessment in intensive care units depends on patients’ surrogates, frailty assessments by surrogates and researchers have not been compared.

Objectives

To compare agreement and validity between surrogates’ and researchers’ assessments of frailty in critically ill older adults.

Methods

An observational cohort study of adults (aged ≥ 50 years) admitted to a medical/surgical intensive care unit was conducted. On admission, patients’ surrogates quantified prehospital frailty by using the Clinical Frailty Scale (range, 1–9; scores > 4 defined as frail). Researchers blinded to surrogates’ assessments also quantified frailty. Agreement was described with κ scores, McNemar tests, and Bland-Altman plots; validity was compared by using χ2 tests and logistic regression.

Results

For 298 patients (mean [SD] age, 67.2 [10.5] years), both surrogates’ and researchers’ frailty assessment scores ranged from 1 to 9, with moderate to substantial agreement between scores (g ≥ 0.40). Surrogates’ frailty assessment scores were significantly lower than researchers’ (mean difference, −0.62; 95% CI, −0.77 to −0.48; P < .001). Surrogates were less likely than researchers to identify as frail those patients who experienced adverse hospital outcomes (death, prolonged stay, or disability newly identified at discharge).

Conclusions

Surrogates identified fewer patients as frail than did researchers. Factors involved in surrogates’ assessments of patients’ prehospital frailty status should be studied to see if the Clinical Frailty Scale can be modified to facilitate more accurate surrogate assessments.
Safety and Patients’ Response to Ambulation With a Pulmonary Artery Catheter in the Cardiac Intensive Care Unit
Authors: Mattioli Elisa , Tabuzo Bienvenido , Sangkachand Prasama , Parkosewich Janet , Reyes Liberty , Funk Marjorie
Published: March 2019

Background

Early mobilization of patients in the intensive care unit can be beneficial, but evidence is insufficient to indicate whether allowing patients with an indwelling pulmonary artery catheter to walk is safe.

Objective

To describe the physiological and emotional responses to ambulation in patients with heart failure and a pulmonary artery catheter.

Methods

This prospective, descriptive study included 19 patients with heart failure monitored with a pulmonary artery catheter in a cardiac intensive care unit. Each patient, accompanied by a nurse, walked with continuous observation of heart rate and rhythm and pulmonary artery tracing on a transport monitor. Pulmonary artery catheter position and waveform, arrhythmias, and perceived levels of exertion and fatigue were recorded before and after each walk. The distance ambulated was documented. One to 3 times per week, nurses administered a questionnaire addressing patients’ sense of well-being.

Results

The 19 patients had 303 walks (range, 1–68; median, 7). During 7 patient walks (2.4%), catheter migration of 1 to 5 cm occurred, but no arrhythmias or waveform changes were observed. Changes in exertion and fatigue were significant (P < .001, paired t test), but levels of both were minimal after walking. Patients expressed physical and emotional benefits of walking.

Conclusions

This study provides preliminary evidence that for hemodynamically stable patients with heart failure, ambulating with a pulmonary artery catheter is safe and enhances their sense of well-being. The presence of an indwelling pulmonary artery catheter should not preclude walking.
Structural and lithological controls on the nature and distribution of gold at the Tiriganiaq deposit, Meliadine district, Rankin Inlet Greenstone Belt, Nunavut
Authors: St.Pierre B , Mercier-Langevin P , Simard M , Côté-Mantha O , Malo M , Servelle G
Published: March 2019

The Archean Meliadine gold district, Rankin Inlet greenstone belt, Nunavut, contains numerous gold deposits and prospects that are spatially associated with the crustal-scale Pyke Fault and its splays. Many of these deposits are partially to dominantly hosted
within banded iron formation (BIF), including at the Tiriganiaq mine where gold is hosted in complexly folded and sheared BIF-associated zones.
The Tiriganiaq deposit is hosted in the structural hanging wall of the Lower Fault, a west-trending splay of the Pyke Fault located further to the south. The Lower Fault marks a break between the footwall mafic volcanic-dominated sequence (south) and a turbiditic dominated sequence in the hanging
wall (north). The hanging wall units host the ore-bearing, decimetre- to metre-wide laminated quartz-ankerite shear vein referred to as the 1000 lode.
A large part of the ore at Tiriganiaq is hosted within the Upper Oxide Formation, a package of iron-rich sedimentary rocks and BIF units. The southernmost ore zone (1100 lode) consists of a geometrically planar mineralized corridor associated with the transposed long limb of the folded BIF. The more
geometrically and structurally complex 1150 and 1250 lode series are controlled by Lower Fault-parallel, narrow, north-dipping, reverse shear zones that overprint the slightly steeper, north-dipping S2 foliation that is axial planar to tight F2 folds. Shallowly south-dipping extension-al veins,
associated with the shear zones and related fault-fill veins, are preferentially developed in tightly folded decimetre- to metre-thick BIF layers around the moderately north-dipping reverse shear zones.
Geological setting of the 5.2 Moz Au Amaruq banded iron formation-hosted gold deposit, Churchill Province, Nunavut
Authors: Valette M , De Souza S , Mercier-Langevin P , McNicoll V
J , Wodicka N , Creaser R A , Côté-Mantha O , Simard M
Published: March 2019

The recently discovered 5.2 Moz Au Amaruq deposit in Nunavut is part of the Neoarchean (ca. 2.72-2.63 Ga) Wood-burn Lake greenstone belt, Churchill Province. It is hosted in polydeformed, upper greenschist facies banded iron formation (BIF), volcanic, and
detrital sedimentary rocks of the Rumble assemblage of the Woodburn Lake group. The orebodies are primarily hosted in Algoma-type silicate-facies BIF and chert, and occur as stratabound to discord-ant pyrrhotite-rich replacements and arsenopyrite (± löllingite)-bearing zones of silica
flooding. Several sets of discordant quartz±carbonate auriferous veins are present and include fault-fill laminated veins in high-strain zones preferentially developed along sheared/folded contacts between sedimentary and volcanic rocks. The host rocks are affected by at least three episodes of
deformation. Textural relationships between silicate and sulphide minerals provide evidence for prograde metamorphism associated with the main phase of deformation and main fabrics affecting the ore. Gold was exsolved from löllingite during retrograde metamorphism to lower greenschist facies.
Possible Arche-an gold heritage and the timing of the gold mineralization represent key issues that are being addressed to help im-prove exploration models for BIF-hosted/associated gold deposits in the Churchill Province and other Archean terranes.
Reconnaissance molybdenum isotope study of vent-distal SEDEX zinc-lead mineralization and host rocks in the Howard's Pass district, Selwyn Basin, Yukon: potential application to paleoredox determinations
Authors: Peter J M , Gadd M G , Layton-Matthews D , Voinot A
Published: March 2019

Recent work on the largest sedimentary exhalative (SEDEX) district in Canada, the Howard's Pass district (HPD) in Selwyn Basin, Yukon, has shown that a persistently euxinic water column was not the source of sulphur in the mineralization, and that the redox
conditions of the water column (and shallow subsurface) varied from anoxic to suboxic to euxinic. We have conducted a bulk geochemical and molybdenum isotopic traverse through a mineralized intersection in a single drill hole from the Anniv East vent-distal lead-zinc SEDEX deposit in the HPD. Bulk
geochemical redox proxies generally show that redox conditions varied between (intermittently to permanently) suboxic, dysoxic, anoxic and euxinic. Herein we present new molybdenum isotope data for these same samples, and evaluate the efficacy of the application of this isotopic system to
determining redox conditions of the water column and shallow subsurface, and examine the utility of molybdenum isotopes in providing genetic information for SEDEX deposits.
Molybdenum isotope values range from delta-98Mo -0.29 to 2.27 permille. There is good general agreement between the molybdenum isotope values and certain redox sensitive elements and established redox indicators for the unmineralized and mineralized host rocks; these relationships reflect suboxic or
oxic conditions for the most negative values, and anoxic and euxinic conditions for the most positive values. This indicates that the application of molybdenum isotopes as a redox indicator in seafloor hydrothermal deposits in sedimentary (or volcano-sedimentary) settings shows great promise. Unlike
thallium isotopes, molybdenum isotopes do not appear to be of use in fingerprinting SEDEX mineralization.
Application of pyrite chemistry to recognize a distal expression of hydrothermal activity in the MacMillan Pass SEDEX district, Yukon
Authors: Leighton C , Layton-Matthews D , Peter J M , Gadd M G
Published: March 2019

The Tom and Jason sedimentary exhalative (SEDEX) Pb-Zn-Ag-(Ba) deposits in Yukon grade 7.4 weight % and 7.0 weight % Zn, and 6.5 weight % and 4.6 weight % Pb, with zinc and lead tonnages of 15.7 and 10.1 Mt, respectively. Pyrite is ubiquitous in
SEDEX deposits and can potentially reveal much information about the environment and nature of deposition, hydrothermal fluid properties, genesis of mineralization, and may provide vectors toward mineralization. Pyrite-bearing samples from three drillholes situated 2 to 4 km from mineralization (but
time-stratigraphically equivalent) were sampled, and four generations of pyrite were identified (Py1, Py2, Py3, Py4), each with distinct morphological characteristics and mineralogical associations. Synsedimentary (Py1), diagenetic (Py2), hydrothermal (Py3) and metamorphic (Py4) morphologies were
identified. A representative subset of pyrite grains was analyzed for trace element contents by laser ablation-inductively coupled plasma mass spectrometry using raster grids to create quantitative trace element composition maps, in order to characterize the trace element composition of each pyrite
generation.
A distal (2-4 km) expression of hydrothermal mineralization is recognized in Py3, which displays mineral associations and a trace element assemblage typical of hydrothermally precipitated pyrite. The trace element geochemistry of pyrite distal to SEDEX mineralization (and time-stratigraphically
equivalent to it) displays enrichment in Zn, Mn, As and Co, and these elements are generally more abundant in Py3 than other generations, indicating the presence of nearby concealed mineralization.
Toward the application of molybdenum and thallium isotopes as indicators of paleoredox conditions and genesis of hyper-enriched black shale (HEBS) deposits, Peel River, Yukon
Authors: Crawford I , Layton-Matthews D , Peter J M , Gadd M G , Voinot A
Published: March 2019

Hyper-enriched black shale (HEBS) deposits such as those hosted in Devonian black shales of northern Yukon are a globally significant source of a variety of economically important metals, particularly nickel, copper, zinc and platinum group elements (PGE). The
Yukon HEBS occurs as a thin (<10 cm) but laterally extensive (10 000s km2) stratiform and stratabound mineralized layer that is hyper-enriched in Ni-Mo-Zn-PGE. The genesis of such deposits and the ambient paleoenvironment in which they formed are the subject of vigorous debate.
Non-traditional stable isotopes, particularly molybdenum and thallium, are shown to be robust paleoredox indicators. Systematic sampling with molybdenum and thallium isotopic analysis of a 200 m stratigraphic section through the Yukon HEBS mineralization and the footwall and hanging-wall strata at
the Peel River north and south bank localities give delta-98Mo values of -1.1 to -0.53 permille and epsilon-205Tl values of -8.1 to -5.2 for the mineralization and 0.05 to 0.60 permille and -4.8 to -4.4 for the unmineralized strata, respectively. These values, together with bulk geochemical redox
indicators and rare earth elements, indicate that the Peel River HEBS mineralization formed from seawater in a quiescent, euxinic basinal paleoenvironment.
Metal transport by liquid hydrocarbons: evidence from metalliferous shale and pyrobitumen, Yukon
Authors: Henderson K M , Williams-Jones A E , Clark J R
Published: March 2019

Hyper-enriched black shale (HEBS) occurs within Yukon Devonian stratigraphy as a thin (approximately 3 cm thick) laterally extensive (100-1000s km2) sulphide-rich unit. These shale beds contain an average of 4 weight % Ni, 0.5 weight % Zn, and 0.3 weight
% Mo, as well as anomalous concentrations of Cu, Ag, Se, As, P, Ba, U, platinum group and rare earth elements. The origin of these HEBS deposits is strongly debated; possible mechanisms include metals being derived from seawater in a sediment-starved, stratified euxinic basin or by addition from
hydrothermal fluids. However, a process that has not been considered is mobilization of metals by hydrocarbon liquids. These liquids are produced during diagenesis, and are capable of transporting nickel, vanadium and zinc.
Pyrobitumen occurs as centimetre-scale veins within the hyper-enriched black shale (HEBS) layer, but also much thicker metre-wide veins in the surrounding shale packages. Bulk analysis shows that these veins have high metal concentrations; most notably nickel and vanadium. Pyrobitumen within the
HEBS horizon has average Ni and V concentrations of 1300 ppm and 1400 ppm, respectively. A vein above the HEBS horizon has 2000 ppm Ni and 3700 ppm V, as well as 8000 ppm Zn and 220 ppm Mo. Nickel-vanadium sulphur phases are present within the organic material as small (2-10 micrometres long) laths.
The presence of nickel- and vanadium-bearing phases within pyrobitumen veins is consistent with the notion of metal-transportation by liquid hydrocarbons.