bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparison of Various Spacing Policies for Longitudinal Control of Automated Vehicles
Authors: Tak Sehyun , Park Sungjin , Yeo Hwasoo
Published: December 2016

An automated vehicle controls its throttle and brake systems on the basis of the spacing policy, which is used to control the distance between vehicles. The spacing policy is required for maintaining a desirable state of vehicle movement in consideration of the movement of preceding vehicles. Because a spacing policy significantly influences the performance of automated vehicles, various spacing policies have been proposed. Previous studies have mostly focused on string stability, safety of the subject vehicle, and traffic capacity rather than on similarity to human driving behavior. However, developing automated vehicles with movements similar to vehicles driven by humans is important for automated vehicles that travel with manual vehicles driven by human drivers. In this study, the authors propose a risk-based spacing policy based on the microscopic analysis of the relationship between collision risk and driving behavior. The proposed spacing policy was simulated with real trajectory data and compared with the four existing spacing policies in vehicle operation characteristics, shock wave attenuation, and safety. To consider the effect of the market penetration rate of automated vehicles, the spacing policies were compared under the condition of an increased number of automated vehicles. The results show that the proposed spacing policy can significantly suppress shock waves. With the shock wave suppression, the newly proposed spacing policy can improve road safety, and its positive effect will grow as the market penetration rate of automated vehicles increases.
Comprehensive Injury Severity Analysis of SUV and Pickup Truck Rollover Crashes: Alabama Case Study
Authors: Islam Samantha , Hossain Akhter B. , Barnett Timothy E.
Published: December 2016

The research described in this paper explored the factors contributing to injury severity resulting from rollover accidents of light trucks—SUVs and pickups in particular—in Alabama. Given the occurrence of a rollover crash, random parameter logit models of injury severity (with possible outcomes of fatal, major, minor, and possible or no injury) were estimated. The estimated models identified a variety of statistically significant factors influencing the injury severities resulting from SUV and pickup rollover crashes. According to these models, some variables were significant in one model (SUV or pickup) but not the other. For example, variables such as roadway downgrade, female drivers, and daylight were significant only in the SUV model. Variables such as driver fatigue, driver or occupant wearing a seat belt, and freeway were significant only in the pickup model. In addition, some variables (such as not wearing a seat belt, two-lane roadway, horizontal curve, and old driver) were significant in both models. Estimation findings showed that two parameters (horizontal curve and at intersections) in the SUV model and two parameters (horizontal curve and dry roadway surface) in the pickup model could be modeled as random parameters, indicating their varying influence on the injury severity related to unobserved effects. The results obtained are used in this paper for a discussion of the effects of variables on pedestrian and bicyclist injury severities and their possible explanations.
Geographical Boundary Dependency Versus Roadway Hierarchy in Macroscopic Safety Modeling: Analysis with Motor Vehicle Crash Data
Authors: Siddiqui Chowdhury , Abdel-Aty Mohamed
Published: December 2016

This study investigated two methodologies for allocating crashes within a zone and compared them in light of crash prediction models. The assumption that crashes within a zone were influenced only by the characteristics of that zone was examined with motor vehicle crash data. Models were specified by a hierarchical structure with submodels that provided separate estimates of covariate sets for crashes that occurred at or near boundaries and that occurred within a zone away from zonal boundaries. The proposed model structure was compared with spatial and nonspatial statistical models fitted for a wide array of independent variables. Two layers of zonal influences were investigated: ( a) the influence of immediate neighbors and ( b) the additional influence of neighbors of immediate neighbors. The roadway network hierarchy was considered in model sublevel specifications. Comparison of the candidate models showed that the complex nested model structure specifying interior and boundary crashes did not necessarily provide the best fit. Spatial models with submodels based on roadway network hierarchy were found to have the best goodness-of-fit measures for both total and severe crashes. Significant variables were common between total and severe crashes. However, only on-system crashes were significantly associated with the exposure variable, indicating that socioeconomic characteristics and land use types play an important role in off-system crash propensity.
Confirming the identity of newly recorded Nymphaea rubra Roxb. ex Andrews discerning from Nymphaea pubescens Willd. using morphometrics and molecular sequence analyses
Authors: Guruge D.P.G. Shashika K. , Yakandawala Deepthi , Yakandawala Kapila
Published: December 2016

A multivariate statistical analysis was carried out to evaluate the morphological variation between Nymphaea pubescens Willd., and a deep purplish red flowered Nymphaea that occur in Sri Lanka. The plant resembles N. rubra Roxb. ex Andrews, a species that had been sometimes circumscribed as a variety under N. pubescens Willd. DNA sequences data of matK and psbA-trnH regions were used to obtain further support. Morphological data were scored from collected samples and analyzed using PAST software. Extracted DNA were amplified for matK and psbA-trnH gene regions. Obtained sequences were matched with the related accessions deposited in the GenBank. Multivariate analysis supported the recognition of deep purplish red flowered Nymphaea as a different species from N. pubescens, and was identified as N. rubra based on literature. GenBank accessions for the matK region of N. rubra showed 99% similarity while it gave only a 96% similarity for N. pubescens with query coverage of 97% and 96% respectively, corroborating with the morphological analysis. Comparison of the sequence divergence between N. pubescens and N. rubra sequences indicated a 95% similarity for matK gene region while 92% similarity for psbA-trnH gene region. The sequences generated during the present study would provide additional reference sequences for the two taxa.Bangladesh J. Plant Taxon. 23(2): 107-117, 2016 (December)
Updated nomenclature and taxonomic status of the plants of Bangladesh included in Hook. f. the Flora of British India: Volume III
Authors: Rashid M. Enamur , Rahman M. Atiqur
Published: December 2016

One hundred seventy seven species belonging to 88 genera under 14 natural orders are determined to have been recorded in the third volume of J.D. Hookers, the Flora of British India from the area now fall in Bangladesh. These taxa are enumerated with updated nomenclature and current taxonomic status following ICN and Cronquists system of plant classification respectively resulting in 169 species under 93 genera and 14 families. Collection locality with collectors name of each species wherever available, as cited in protologue, is also included.Bangladesh J. Plant Taxon. 23(2): 143-160, 2016 (December)
Didymodon mongolicus (Bryophyta, Pottiaceae), a new species from Mongolian Plateau
Authors: Zhao Dong-Ping , Zhang Tong-Rui , Bai Xue-Liang , Ren Dong-Mei
Published: December 2016

Didymodon mongolicus D. P. Zhao &T. R. Zhang is described as a new species from northern China and Mongolia. The new taxon is distinguished from others species of the genus by its small, ovate leaves, weakly recurved margins, smooth laminal cells and costa ending several cells below the apex, with 1 layer of ventral stereids in the lower part of the leaf. Drawings and light microscope photographs of the main characters are given, and its relationships with some closely related species within the genus are discussed.Bangladesh J. Plant Taxon. 23(2): 175-180, 2016 (December)
Cheilolejeunea vittata (Steph. ex G. Hoffm.) R.M. Schust. & Kachroo (Lejeuneaceae: Marchantiophyta)  A newly recorded species from India
Authors: Kumar Shashi , Singh Sushil Kumar
Published: December 2016

Cheilolejeunea vittata (Steph. ex G. Hoffm.) R.M. Schust. & Kachroo is reported and described for the first time in Indian bryoflora from Manipur.Bangladesh J. Plant Taxon. 23(2): 209-213, 2016 (December)
First record of Xylaria vasconica J. Fournier & M. Stadler from Bangladesh
Authors: Jahan Nusrat , Ahmed Fakhruddin Ali
Published: December 2016

Not available.Bangladesh J. Plant Taxon. 23(2): 255-257, 2016 (December)
Annotated checklist of the tree flora of Bangladesh
Authors: Irfanullah Haseeb Md.
Published: December 2016

Not available.This book is authored by Shukla Rani Basak and M. Khairul Alam.Bangladesh J. Plant Taxon. 23(2): 261-262, 2016 (December)
Role of Single Dose Preoperative Ceftriaxone in the Control of Surgical Site Infection in a Tertiary Level Hospital
Authors: Rahman Mohammad Mushfiqur , Rahman Md Mazedur , Munim Mamun Ibn , Haque Md Shariful
Published: December 2016

Post-surgical wou  infection is a crucial factor in surgical practice. Prolong use of postoperative antibiotic is common practice in our surgical world. This causes financial burden to our patients a antibiotic resistance. But international journals a  literatures suggest using antibiotics as prophylaxis only at the time of operation a  no further postoperative antibiotic is needed in clean contaminated surgery. This comparative cross-sectional study was done at the department of surgery, Sylhet MAG Osmani Medical College Hospital from 1st July 2007 to 30th June 2008. A total number of 100 patients of clean-contaminated elective laparotomy were selected. Patients were ra omly divided into two groups, in Group-I (got single dose preoperative Inj. Ceftriaxone) a  in group-II (got single dose preoperative Inj. Ceftriaxone followed by Inj. Ceftriaxone for 2 days a  then Cap. Cefxime for next 5 days). There is no statistically significant difference in outcome between two groups. So, single dose preoperative Inj. Ceftriaxone (1gm) is sufficient as a prophylaxis of surgical site infection in clean-contaminated elective surgery.Faridpur Med. Coll. J. Jan 2016;11(1): 6-10
Outcome of Clinically Suspected Encephalitis Patients Admitted To Faridpur Medical College Hospital, Bangladesh
Authors: Alam Md Towhid , Fattah Shakh Abdul , Islam MM Shahin Ul , Howlader Md Anisur Rahman , Hossain Ahmed Manadir , Mondal Swapan Kumar , Saha Suranjit Kumar , Haider Abul Hashem Md Zulfiquor
Published: December 2016

Significant number of Encephalitis patient was admitted in Faridpur Medical College Hospital (FMCH) in last years. There was an outbreak of Nipah Virus encephalitis in Faridpur in 2004. Among the 34 cases 26 patients were expired. After that, occurrence of disease is continuing. In this study a total number of 100 cases of clinically suspected encephalitis patients were studied for different clinical parameters and observed their clinical outcome. This is a retrospective study using data from hospital records. Among them 62% were male and 38% were female. Largest numbers of patients were under age group of 21-35 years, 46% of patients were from Faridpur district then 24% from Rajbari. Majority of patients were presented with neurological features (74%), 10% with pulmonary, 4% gastrointestinal, rest 12 % with combined neurological and pulmonary features. Maximum numbers (30%) of patients were attained treatment within 25 to 48 hours of onset of symptoms. Among them 78% of the patients recovered, 17% expired and 5% were referred. In this context, further prospective study is required to find out the epidemiological characteristics of Encephalitis in Faridpur region.Faridpur Med. Coll. J. Jan 2016;11(1): 20-22
DES of the turbulent flow around a circular cylinder of finite height
Authors: Elbatran Aly Hassan
Published: December 2016

The current research work investigates numerically the turbulent flow field characteristics around three dimensional circular cylinder of finite height at Reynolds number of 43000 using Detached Eddy Simulation (DES) turbulence model. Comparison of the numerical results with the experiment data has been taken place. The results reveals that the DES turbulence model is superior for predicting the flow past the circular cylinder of finite height at this Re. The numerical results of this study show the great potential of the presented DES for investigating the complicated flow structure in this case. DES is very accurate for predicting the flow characteristics in many sophisticated cases and can reduce the computational efforts during the simulation process in comparison with Large Eddy Simulation (LES) turbulence mathematical model.
Identification and Crystallization of Penicillin-Binding Protein/β-Lactamase Homolog (Rp46) from Ruegeria Pomeroyi
Authors: Ryu Bum , Ngo Tri , Yoo Wanki , Kim Kyeong , Kim T.
Published: December 2016

In spite of the enormous biological and clinical significance of penicillin-binding protein (PBP)/β-lactamase (βL), few of their many homologs (PBP)/βLs homologs) have been studied crystallographically, and have known functions. Herein, X-ray crystallographic study of a PBP/βL homolog (Rp46) from Ruegeria pomeroyi is described. Multiple sequence alignments indicate that Rp46 has a conserved serine residue within the S70-X-X-K73 motif (Motif I), acting as the catalytic nucleophile. Moreover, an invariant tyrosine residue (Tyr185) and a Trp365-X-Gly motif (Motif III) were also identified. The recombinant Rp46 protein was expressed in Escherichia coli and purified to homogeneity judging from the SDS-PAGE analysis. Rp46 was crystallized using a solution consisting of 20% (w/v) PEG 3000, 0.1 M Tris-HCl, pH 7.0, 0.2 M calcium acetate, and the X-ray diffraction data were collected to a resolution of 1.90 Å with an Rmerge of 7.4%. The crystals of Rp46 belong to the space group I422, with unit cell parameters a = b = 141.26 Å, and c = 119.75. The structure determination and biochemical characterization are in progress. (Synopsis: A penicillin-binding protein/β-lactamase homolog (Rp46) from Ruegeria pomeroyi was identified and crystallized in the space group I4, and the diffraction data were collected to a resolution of 1.90 Å.)
Emerging Needle Blight Diseases in Atlantic Pinus Ecosystems of Spain
Authors: Ortíz de Urbina Esther , Mesanza Nebai , Aragonés Ana , Raposo Rosa , Elvira-Recuenco Margarita , Boqué Ricard , Patten Cheryl , Aitken Jenny , Iturritxa Eugenia
Published: December 2016

Red band needle blight caused by Dothistroma septosporum and D. pini, and brown spot needle blight caused by Lecanosticta acicola provoke severe and premature defoliation in Pinus, and subsequent reduction of photosynthetic surfaces, vitality, and growth in young and adult trees. The recurrent damage results in branch and tree death. Until recently, pine needle blight diseases have had only minor impacts on native and exotic forest trees in the North of Spain, but in the past five years, these pathogen species have spread widely and caused severe defoliation and mortality in exotic and native plantations of Pinus in locations where they were not detected before. In an attempt to understand the main causes of this outbreak and to define the effectiveness of owners’ management strategies, four research actions were implemented: a survey of the management activities implemented by the owners to reduce disease impact, the evaluation of specific symptoms and damage associated with infection, and the identification of the causative pathogenic species and their reproductive capacity. Morphological characteristics of the fungus and molecular identification were consistent with those of Lecanosticta acicola and Dothistroma spp., D. septosporum, D. Pini, and both mating types were present for the three identified pathogens. The local silvicultural management performed, mainly pruning and thinning, was not resulting in the expected improvement. The results of this study can be applied to establish guidelines for monitoring and controlling the spread of needle blight pathogens.
Preferential Enhancement of Sensory and Motor Axon Regeneration by Combining Extracellular Matrix Components with Neurotrophic Factors
Authors: Santos Daniel , González-Pérez Francisco , Giudetti Guido , Micera Silvestro , Udina Esther , Del Valle Jaume , Navarro Xavier
Published: December 2016

After peripheral nerve injury, motor and sensory axons are able to regenerate but inaccuracy of target reinnervation leads to poor functional recovery. Extracellular matrix (ECM) components and neurotrophic factors (NTFs) exert their effect on different neuronal populations creating a suitable environment to promote axonal growth. Here, we assessed in vitro and in vivo the selective effects of combining different ECM components with NTFs on motor and sensory axons regeneration and target reinnervation. Organotypic cultures with collagen, laminin and nerve growth factor (NGF)/neurotrophin-3 (NT3) or collagen, fibronectin and brain-derived neurotrophic factor (BDNF) selectively enhanced sensory neurite outgrowth of DRG neurons and motor neurite outgrowth from spinal cord slices respectively. For in vivo studies, the rat sciatic nerve was transected and repaired with a silicone tube filled with a collagen and laminin matrix with NGF/NT3 encapsulated in poly(lactic-co-glycolic acid) (PLGA) microspheres (MP) (LM + MP.NGF/NT3), or a collagen and fibronectin matrix with BDNF in PLGA MPs (FN + MP.BDNF). Retrograde labeling and functional tests showed that LM + MP.NGF/NT3 increased the number of regenerated sensory neurons and improved sensory functional recovery, whereas FN + MP.BDNF preferentially increased regenerated motoneurons and enhanced motor functional recovery. Therefore, combination of ECM molecules with NTFs may be a good approach to selectively enhance motor and sensory axons regeneration and promote appropriate target reinnervation.
Human Rho Guanine Nucleotide Exchange Factor 11 (ARHGEF11) Regulates Dendritic Morphogenesis
Authors: Mizuki Yutaka , Takaki Manabu , Sakamoto Shinji , Okamoto Sojiro , Kishimoto Makiko , Okahisa Yuko , Itoh Masahiko , Yamada Norihito
Published: December 2016

Disturbances of synaptic connectivity during perinatal and adolescent periods have been hypothesized to be related to the pathophysiology of schizophrenia. Rho guanine nucleotide exchange factor 11 (ARHGEF11) is a specific guanine nucleotide exchange factors (GEF) for RhoA, which is a critical regulator of actin cytoskeleton dynamics and organization of dendritic spines and inhibitor of spine maintenance. ARHGEF11 variants are reported to be associated with a higher risk for the onset of schizophrenia in a Japanese population; however, how ARHGEF11 contributes to the pathogenesis of schizophrenia in dendritic spines is unknown. Therefore, we first studied the distribution, binding, and function of ARHGEF11 in the dendritic spines of the rat cerebral cortex. After subcellular fractionation of the rat cerebral cortex, ARHGEF11 was detected with synaptophysin and post-synaptic density protein 95 (PSD-95) in the P2 fractions including synaptosomal fractions containing presynaptic and postsynaptic density proteins. Endogenous ARHGEF11 was coimmunoprecipitated with synaptophysin or PSD-95. In cortical primary neurons at 28 days in vitro, immunostaining revealed that ARHGEF11 located in the dendrites and dendritic spines and colocalized with PSD-95 and synaptophysin. Overexpression of exogenous ARHGEF11 significantly decreased the number of spines (p = 0.008). These results indicate that ARHGEF11 is likely to be associated with synaptic membranes and regulation of spine.
Retro-Curcuminoids as Mimics of Dehydrozingerone and Curcumin: Synthesis, NMR, X-ray, and Cytotoxic Activity
Authors: Obregón-Mendoza Marco , Estévez-Carmona María , Hernández-Ortega Simón , Soriano-García Manuel , Ramírez-Apan María , Orea Laura , Pilotzi Hugo , Gnecco Dino , Cassani Julia , Enríquez Raúl
Published: December 2016

Curcumin and its derivatives have been extensively studied for their remarkable medicinal properties, and their chemical synthesis has been an important step in the optimization of well-controlled laboratory production. A family of new compounds that mimic the structure of curcumin and curcuminoids, here named retro-curcuminoids (7–14), was synthesized and characterized using 1D 1H- and 13C-NMR, IR, and mass spectrometry; the X-ray structure of 7, 8, 9, 10, 12, 13, and 14 are reported here for the first time. The main structural feature of these compounds is the reverse linkage of the two aromatic moieties, where the acid chloride moiety is linked to the phenolic group while preserving α, β-unsaturated ketone functionality. The cytotoxic screening of 7, 8, 9, and 10 at 50 and 10 µg/mL was carried out with human cancer cell lines K562, MCF-7, and SKLU-1. Lipid peroxidation on rat brain was also tested for compounds 7 and 10. Compounds 7, 8, and 10 showed relevant cytotoxic activity against these cancer cell lines, and 10 showed a protective effect against lipid peroxidation. The molecular resemblance to curcuminoids and analogs with ortho substituents suggests a potential source of useful bioactive compounds.
Challenges in Simulating Light-Induced Processes in DNA
Authors: Marquetand Philipp , Nogueira Juan , Mai Sebastian , Plasser Felix , González Leticia
Published: December 2016

In this contribution, we give a perspective on the main challenges in performing theoretical simulations of photoinduced phenomena within DNA and its molecular building blocks. We distinguish the different tasks that should be involved in the simulation of a complete DNA strand subject to UV irradiation: (i) stationary quantum chemical computations; (ii) the explicit description of the initial excitation of DNA with light; (iii) modeling the nonadiabatic excited state dynamics; (iv) simulation of the detected experimental observable; and (v) the subsequent analysis of the respective results. We succinctly describe the methods that are currently employed in each of these steps. While for each of them, there are different approaches with different degrees of accuracy, no feasible method exists to tackle all problems at once. Depending on the technique or combination of several ones, it can be problematic to describe the stacking of nucleobases, bond breaking and formation, quantum interferences and tunneling or even simply to characterize the involved wavefunctions. It is therefore argued that more method development and/or the combination of different techniques are urgently required. It is essential also to exercise these new developments in further studies on DNA and subsystems thereof, ideally comprising simulations of all of the different components that occur in the corresponding experiments.
Formation and Physiochemical Properties of Silver Nanoparticles with Various Exopolysaccharides of a Medicinal Fungus in Aqueous Solution
Authors: Jian Wenjie , Zhang Lu , Siu Ka-Chai , Song Angxin , Wu Jian-Yong
Published: December 2016

Natural polysaccharides are the most widely used biopolymers for green synthesis of eco-friendly silver nanoparticles (AgNPs). In a previous study, a high molecular weight (MW) fraction of exopolysaccharides (EPS) produced by a medicinal fungus Cs-HK1 has been shown useful for green and facile synthesis of AgNPs in water. This study was to further evaluate the effects of molecular properties of EPS on the formation, stability and properties of AgNPs with different EPS fractions at various pH conditions. Three EPS fractions (P0.5, P2.0 and P5.0: MW high to low and protein content low to high) were reacted with silver nitrate at various pH 3.0–8.0 in water. The most favorable pH range was 5.5–8.0 for the formation and stable dispersion of AgNPs. At a given pH, the maximum amount of AgNPs was produced with P5.0, and the minimum with P0.5. The shape, size and physiochemical properties of AgNPs were strongly affected by the molecular characteristics of EPS (MW and conformation). The results may be helpful for understanding the factors and mechanisms for formation of stable AgNPs with natural polysaccharides and the interactions between AgNPs and the polysaccharide hydrocolloids in water.
RFID Ownership Transfer with Positive Secrecy Capacity Channels
Authors: Munilla Jorge , Burmester Mike , Peinado Alberto , Yang Guomin , Susilo Willy
Published: December 2016

RFID ownership transfer protocols (OTPs) transfer tag ownership rights. Recently, there has been considerable interest in such protocols; however, guaranteeing privacy for symmetric-key settings without trusted third parties (TTPs) is a challenge still unresolved. In this paper, we address this issue and show that it can be solved by using channels with positive secrecy capacity. We implement these channels with noisy tags and provide practical values, thus proving that perfect secrecy is theoretically possible. We then define a communication model that captures spatiotemporal events and describe a first example of symmetric-key based OTP that: (i) is formally secure in the proposed communication model and (ii) achieves privacy with a noisy tag wiretap channel without TTPs.
Genome‐wide Association Analysis for Drought Tolerance and Associated Traits in Common Bean
Authors: Hoyos‐Villegas Valerio , Song Qijian , Kelly James D.
Published: December 2016

A genome‐wide association study explored the genetic basis of variation for drought tolerance and related traits in a Middle American diversity panel comprising 96 common bean (Phaseolus vulgaris L.) genotypes. The panel was grown under irrigated and rainfed conditions and single nucleotide polymorphism (SNP) data were used to explore the genetic diversity and ancestry of the panel. Varying levels of admixtures and distinctly divergent individuals were observed. Estimations of genome‐wide heterozygosity revealed that, on average, greater diversity is present in individuals with Mesoamerica (3.8%) ancestry, followed by admixed individuals (2.3%). The race Durango had the lowest level of heterozygosity (1.4%). We report 27 significant marker–trait associations based on best linear unbiased predictors. These associations include seven markers for shoot biomass at harvest under irrigation and five markers under rainfed conditions on P. vulgaris (Pv) chromosome Pv11, two markers for shoot biomass at flowering under irrigation on Pv02 and Pv08, two markers for seed size under irrigated and rainfed conditions on Pv09, seven markers for lodging score under irrigation on Pv02 and Pv07, one marker for leaf elongation rate on Pv03 and one for wilting score on Pv11. Positional candidate genes, including Phvul.011G102700 on Pv11, associated with wilting, were identified. The SNP ss715639327 marker was located in the exon region of the PvSIP1;3 gene, which codes for an aquaporin associated with water movement in beans. Significant quantitative trait loci identified in this study could be used in marker‐assisted breeding to accelerate genetic improvement of drought tolerance in common bean.
A NEW LOOK AT THE INTEGRATED RADIO/MICROWAVE CONTINUUM SPECTRUM OF GALACTIC SUPERNOVA REMNANT IC 443
Authors: Onić D. , Urošević D. , Leahy D.
Published: December 2016

Recent observations of the microwave sky, by space telescopes such as the Wilkinson Microwave Anisotropy Probe and Planck, have opened a new window into the analysis of continuum emission from supernova remnants (SNRs). In this paper, different emission models that can explain the characteristic shape of currently known integrated radio/microwave continuum spectrum of the Galactic SNR IC 443 are tested and discussed. In particular, the possibility is emphasized that the slight bump in the integrated continuum of this remnant around 20–70 GHz is genuine and that it can be explained by the contribution of an additional emission mechanism such as spinning dust. We find that adding a spinning dust component to the emission model improves the fit of the integrated spectrum of this SNR while at the same time preserving the physically probable parameter values. Finally, models that include the high-frequency synchrotron bending of the IC 443 radio to microwave continuum are favored.
INFRARED SPECTROSCOPY OF SYMBIOTIC STARS. XI. ORBITS FOR SOUTHERN S-TYPE SYSTEMS: HEN 3-461, SY MUS, HEN 3-828, AND AR PAV
Authors: Fekel Francis C. , Hinkle Kenneth H. , Joyce Richard R. , Wood Peter R.
Published: December 2016

Employing new infrared radial velocities, we have computed spectroscopic orbits of the cool giants in four southern S-type symbiotic systems. The orbits for two of the systems, Hen 3-461 and Hen 3-828, have been determined for the first time, while orbits of the other two, SY Mus and AR Pav, have previously been determined. For the latter two systems, we compare our results with those in the literature. The low mass of the secondary of SY Mus suggests that it has gone through a common envelope phase. Hen 3-461 has an orbital period of 2271 days, one of the longest currently known for S-type symbiotic systems. That period is very different from the orbital period proposed previously from its photometric variations. The other three binaries have periods between 600 and 700 day, values that are typical for S-type symbiotic orbits. Basic properties of the M giant components and the distance to each system are determined.
V773 Cas, QS Aql, AND BR Ind: ECLIPSING BINARIES AS PARTS OF MULTIPLE SYSTEMS*
Authors: Zasche P. , Juryšek J. , Nemravová J. , Uhlař R. , Svoboda P. , Wolf M. , Hoňková K. , Mašek M. , Prouza M. , Čechura J. , Korčáková D. , Šlechta M.
Published: December 2016

Eclipsing binaries remain crucial objects for our understanding of the universe. In particular, those that are components of multiple systems can help us solve the problem of the formation of these systems. Analysis of the radial velocities together with the light curve produced for the first time precise physical parameters of the components of the multiple systems V773 Cas, QS Aql, and BR Ind. Their visual orbits were also analyzed, which resulted in slightly improved orbital elements. What is typical for all these systems is that their most dominant source is the third distant component. The system V773 Cas consists of two similar G1-2V stars revolving in a circular orbit and a more distant component of the A3V type. Additionally, the improved value of parallax was calculated to be 17.6 mas. Analysis of QS Aql resulted in the following: the inner eclipsing pair is composed of B6V and F1V stars, and the third component is of about the B6 spectral type. The outer orbit has high eccentricity of about 0.95, and observations near its upcoming periastron passage between the years 2038 and 2040 are of high importance. Also, the parallax of the system was derived to be about 2.89 mas, moving the star much closer to the Sun than originally assumed. The system BR Ind was found to be a quadruple star consisting of two eclipsing K dwarfs orbiting each other with a period of 1.786 days; the distant component is a single-lined spectroscopic binary with an orbital period of about 6 days. Both pairs are moving around each other on their 148 year orbit.
THE LOCAL [C ii] 158 μm EMISSION LINE LUMINOSITY FUNCTION
Authors: Hemmati Shoubaneh , Yan Lin , Diaz-Santos Tanio , Armus Lee , Capak Peter , Faisst Andreas , Masters Daniel
Published: December 2016

We present, for the first time, the local [C ii] 158 μm emission line luminosity function measured using a sample of more than 500 galaxies from the Revised Bright Galaxy Sample. [C ii] luminosities are measured from the Herschel PACS observations of the Luminous Infrared Galaxies (LIRGs) in the Great Observatories All-sky LIRG Survey and estimated for the rest of the sample based on the far-infrared (far-IR) luminosity and color. The sample covers 91.3% of the sky and is complete at S
60 μm > 5.24 Jy. We calculate the completeness as a function of [C ii] line luminosity and distance, based on the far-IR color and flux densities. The [C ii] luminosity function is constrained in the range ∼107–9
L
⊙ from both the 1/V
max and a maximum likelihood methods. The shape of our derived [C ii] emission line luminosity function agrees well with the IR luminosity function. For the CO(1-0) and [C ii] luminosity functions to agree, we propose a varying ratio of [C ii]/CO(1-0) as a function of CO luminosity, with larger ratios for fainter CO luminosities. Limited [C ii] high-redshift observations as well as estimates based on the IR and UV luminosity functions are suggestive of an evolution in the [C ii] luminosity function similar to the evolution trend of the cosmic star formation rate density. Deep surveys using the Atacama Large Millimeter Array with full capability will be able to confirm this prediction.
FORMATION AND ERUPTION OF A FLUX ROPE FROM THE SIGMOID ACTIVE REGION NOAA 11719 AND ASSOCIATED M6.5 FLARE: A MULTI-WAVELENGTH STUDY
Authors: Joshi Bhuwan , Kushwaha Upendra , Veronig Astrid M. , Dhara Sajal Kumar , Shanmugaraju A. , Moon Yong-Jae
Published: December 2016

We investigate the formation, activation, and eruption of a flux rope (FR) from the sigmoid active region NOAA 11719 by analyzing E(UV), X-ray, and radio measurements. During the pre-eruption period of ∼7 hr, the AIA 94 Å images reveal the emergence of a coronal sigmoid through the interaction between two J-shaped bundles of loops, which proceeds with multiple episodes of coronal loop brightenings and significant variations in the magnetic flux through the photosphere. These observations imply that repetitive magnetic reconnections likely play a key role in the formation of the sigmoidal FR in the corona and also contribute toward sustaining the temperature of the FR higher than that of the ambient coronal structures. Notably, the formation of the sigmoid is associated with the fast morphological evolution of an S-shaped filament channel in the chromosphere. The sigmoid activates toward eruption with the ascent of a large FR in the corona, which is preceded by the decrease in photospheric magnetic flux through the core flaring region, suggesting tether-cutting reconnection as a possible triggering mechanism. The FR eruption results in a two-ribbon M6.5 flare with a prolonged rise phase of ∼21 minutes. The flare exhibits significant deviation from the standard flare model in the early rise phase, during which a pair of J-shaped flare ribbons form and apparently exhibit converging motions parallel to the polarity inversion line, which is further confirmed by the motions of hard X-ray footpoint sources. In the later stages, the flare follows the standard flare model and the source region undergoes a complete sigmoid-to-arcade transformation.
THREE-DIMENSIONAL SPONTANEOUS MAGNETIC RECONNECTION
Authors: Beresnyak Andrey
Published: December 2016

Magnetic reconnection is best known from observations of the Sun where it causes solar flares. Observations estimate the reconnection rate as a small, but non-negligible fraction of the Alfvén speed, so-called fast reconnection. Until recently, the prevailing pictures of reconnection were either of resistivity or plasma microscopic effects, which was contradictory to the observed rates. Alternative pictures were either of reconnection due to the stochasticity of magnetic field lines in turbulence or the tearing instability of the thin current sheet. In this paper we simulate long-term three-dimensional nonlinear evolution of a thin, planar current sheet subject to a fast oblique tearing instability using direct numerical simulations of resistive-viscous magnetohydrodynamics. The late-time evolution resembles generic turbulence with a −5/3 power spectrum and scale-dependent anisotropy, so we conclude that the tearing-driven reconnection becomes turbulent reconnection. The turbulence is local in scale, so microscopic diffusivity should not affect large-scale quantities. This is confirmed by convergence of the reconnection rate toward

with increasing Lundquist number. In this spontaneous reconnection, with mean field and without driving, the dissipation rate per unit area also converges to

, and the dimensionless constants 0.015 and 0.006 are governed only by self-driven nonlinear dynamics of the sheared magnetic field. Remarkably, this also means that a thin current sheet has a universal fluid resistance depending only on its length to width ratio and to

.
THE EVOLUTION OF STAR FORMATION ACTIVITY IN CLUSTER GALAXIES OVER 0.15 < z < 1.5
Authors: Wagner Cory R. , Courteau Stéphane , Brodwin Mark , Stanford S. A. , Snyder Gregory F. , Stern Daniel
Published: December 2016

We explore 7.5 billion years of evolution in the star formation activity of massive (

) cluster galaxies using a sample of 25 clusters over

from the Cluster Lensing And Supernova survey with Hubble and 11 clusters over

from the IRAC Shallow Cluster Survey. Galaxy morphologies are determined visually using high-resolution Hubble Space Telescope images. Using the spectral energy distribution fitting code Code Investigating GALaxy Emission, we measure star formation rates, stellar masses, and 4000 Å break strengths. The latter are used to separate quiescent and star-forming galaxies (SFGs). From

to

, the specific star formation rate (sSFR) of cluster SFGs and quiescent galaxies decreases by factors of three and four, respectively. Over the same redshift range, the sSFR of the entire cluster population declines by a factor of 11, from

to

. This strong overall sSFR evolution is driven by the growth of the quiescent population over time; the fraction of quiescent cluster galaxies increases from

to

over z ∼ 1.3 to 0.2. The majority of the growth occurs at

, where the quiescent fraction increases by 0.41. While the sSFR of the majority of star-forming cluster galaxies is at the level of the field, a small subset of cluster SFGs have low field-relative star formation activity, suggestive of long-timescale quenching. The large increase in the fraction of quiescent galaxies above

, coupled with the field-level sSFRs of cluster SFGs, suggests that higher-redshift cluster galaxies are likely being quenched quickly. Assessing those timescales will require more accurate stellar population ages and star formation histories.
Leonardo da Vinci et le savoir des ingénieurs
Authors: Maffioli Cesare S.
Published: December 2016

Le thème des relations entre le savoir des ingénieurs milanais et celui de Léonard de Vinci est abordé ici en examinant deux projets. L’un est lié à la modélisation des prises d’eau du Naviglio Grande, de façon à en contrôler le débit ; l’autre à la construction d’un canal latéral à l’Adda. Sont également mises ici en relation des études graphiques de Léonard se rapportant aux jets d’eau et ses réflexions d’ordre mathématique et philosophique sur le mouvement des eaux.
Henri de Lacaze-Duthiers and the creation of the Laboratoire de zoologie expérimentale , Roscoff, France
Authors: Dayrat Benoît
Published: December 2016

Soixante-trois stations marines furent créées dans le monde au xix e siècle, principalement à partir de 1870. L’histoire de la plupart de ces stations est toujours peu connue, malgré quelques exceptions. L’histoire de la création du Laboratoire de zoologie expérimentale à Roscoff (Bretagne, France), maintenant appelé la Station biologique, est présentée ici, en se concentrant sur les cinq premières années (1872-1877). La création de la station est étudiée en relation avec la formation scientifique de son fondateur, Henri de Lacaze-Duthiers ; elle est également replacée dans son contexte historique et scientifique. De 1852 à 1870, Lacaze-Duthiers passa une grande partie de ses étés à faire de la recherche dans un laboratoire improvisé mais fonctionnel qu’il transportait le long des côtes européennes. Une des raisons qui amenèrent Lacaze-Duthiers, en 1872, à ouvrir son laboratoire itinérant à des visiteurs était la nécessité de former une nouvelle génération de zoologistes français. Créé à l’origine comme une station itinérante, le laboratoire de Lacaze-Duthiers fut installé de manière permanente à Roscoff en 1876. L’article montre également que le premier et inhabituel nom de la station, Laboratoire de zoologie expérimentale, fut choisi par Lacaze-Duthiers pour défendre une certaine vision de la zoologie contre l’éloge de la physiologie expérimentale par Claude Bernard. L’influence de la philosophie positive d’Auguste Comte sur l’expérimentation en biologie est discutée. Au-delà de ce débat théorique, il apparaît que Lacaze-Duthiers fut un pionnier pour l’étude des animaux dans leur habitat et que la station de Roscoff joua un rôle essentiel dans le développement de la biologie marine en France : les anciens étudiants de Lacaze-Duthiers créèrent et dirigèrent la plupart des stations marines françaises dans le dernier quart du xix e siècle. Enfin, des questions d’intérêt général quant à l’émergence de stations marines à partir de 1870 sont brièvement discutées.
Transmisión del calor en el horno rotatorio para cemento
Authors: Folliot Albert
Published: December 2016

Not available
Inestabilidad de volumen en el cemento portland
Authors: Laffarga Osteret José
Published: December 2016

Not available
Reología de las pastas crudas
Authors: Laffarga Osteret José
Published: December 2016

Not available
Cementos siderúrgicos
Authors: Uría López Juan José
Published: December 2016

Not available
Los ensayos de calidad en los laboratorios de fábricas
Authors: Virella Bloda Alberto
Published: December 2016

Not available
Promoting Physical Activity and Fitness with Exergames
Authors: Kari Tuomas
Published: December 2016

This updated systematic review of systematic reviews evaluates the effectiveness of exergaming on physical fitness and physical activity. A systematic literature search was conducted on 10 databases, first in 2014 and then repeated in 2016. In total, 1040 and 287 articles were identified. 68 and 31 articles were found potentially relevant and selected for closer screening. The quality of all relevant articles was evaluated using the AMSTAR tool. After the duplicates were removed and inclusion, exclusion, and quality criteria were implemented, six and three articles remained for review. The results indicate that exergaming is generally enjoyed and can evoke some benefits for physical fitness and physical activity, but the current evidence does not support the ability of exergaming to increase physical fitness or physical activity levels sufficiently for significant health benefits. This systematic review also revealed gaps in previous research. Additional high-quality research and systematic reviews concerning exergaming are needed.
Seasonal dynamics of a population of the aphid Uroleucon rudbeckiae (Hemiptera: Aphididae): implications for population regulation
Authors: Lamb Robert J. , MacKay Patricia A.
Published: December 2016

Many aphid species (Hemiptera: Aphididae) that feed on herbaceous crops exhibit a rise and then sudden decline in abundance. Data from a nine-year study of Uroleucon rudbeckiae (Fitch) on Rudbeckia laciniata Linnaeus (Asteraceae) are used to investigate this pattern of seasonal abundance in a non-agricultural aphid. Aphids on a population of tagged and numbered flower stems were counted weekly. Abundance (mean aphids per stem) was partitioned into prevalence (proportion of stems colonised) and mean intensity (aphids per colonised stem), and also considered as the sum of the aphids in individual colonies. Abundance rose in mid-summer to late summer and then declined, peaking between the end of July and mid-September, earlier in years when the peak was higher. Prevalence showed a more uniform and consistent peak than mean intensity. Most of the 949 colonies were small and short-lived, but a small proportion were long-lived and reached 1000 aphids. Large colonies declined more slowly than moderately-sized colonies. Severe weather, shortening day-length, decline in host quality, density-dependent effects on rate of increase, and emigration failed to explain the population decline. An early rise and later decline in immigration, in conjunction with increasing predation through the summer, were consistent with the decline.
Respiratory Influenza Virus Infection Induces Memory-like Liver NK Cells in Mice
Authors: Li Tingting , Wang Jian , Wang Yanshi , Chen Yongyan , Wei Haiming , Sun Rui , Tian Zhigang
Published: December 2016

Although NK cells are classified as innate immune cells, recent studies have demonstrated the transformation of NK cells into long-lived memory cells that contribute to secondary immune responses in certain mouse models. However, whether NK cells mount an Ag-specific memory response to acute influenza virus infection has not yet been examined. Here, we show that, consistent with previous studies, lung NK cells play an important role in controlling viral proliferation after primary influenza virus infection. However, although lung NK cells display a memory phenotype at the late stage of infection, these cells do not protect mice against secondary influenza virus infection. Interestingly, liver NK cells from influenza virus–infected mice possess a memory phenotype and protect mice against secondary influenza virus infection. Memory-like liver NK cells display a CD49a+DX5− phenotype, and the adoptive transfer of purified liver CD49a+DX5− NK cells into naive mice followed by viral infection results in protective immunity and decreased viral titer. Moreover, we demonstrate that primary inactivated influenza virus induces memory NK cells residing in the liver of Rag1−/− mice. Collectively, these data suggest that liver CD49a+DX5− NK cells remember encountered Ag from influenza virus after primary infection and are more protective upon subsequent infection.
Deletion of Nlrp3 Augments Survival during Polymicrobial Sepsis by Decreasing Autophagy and Enhancing Phagocytosis
Authors: Jin Liliang , Batra Sanjay , Jeyaseelan Samithamby
Published: December 2016

NLRP3 inflammasome is a critical player in innate immunity. Neutrophil recruitment to tissues and effective neutrophil function are critical innate immune mechanisms for bacterial clearance. However, the role of NLRP3 in neutrophil-dependent bacterial clearance in polymicrobial sepsis is unclear. In this study, we evaluated the role of NLRP3 in polymicrobial sepsis induced by cecal ligation and puncture (CLP). Our results showed protection from death in NLRP3-deficient (Nlrp3−/−) and NLRP3 inhibitor–treated wild-type (C57BL/6) mice. Nlrp3−/− and NLRP3 inhibitor–treated mice displayed lower bacterial load but no impairment in neutrophil recruitment to peritoneum. However, neutrophil depletion abrogated protection from death in Nlrp3−/− mice in response to CLP. Intriguingly, following CLP, Nlrp3−/− peritoneal cells (primarily neutrophils) demonstrate decreased autophagy, augmented phagocytosis, and enhanced scavenger receptor (macrophage receptor with collagenous structure) and mannose-binding leptin expression. These findings enhance our understanding of the critical role of NLRP3 in modulating autophagy and phagocytosis in neutrophils and suggest that therapies should be targeted to modulate autophagy and phagocytosis in neutrophils to control bacterial burden in tissues during CLP-induced polymicrobial sepsis.