bluuebunny/crossref_metadata_2025 huggingface dataset:
The genus Euryparasitus in North America (Mesostigmata: Euryparasitidae)
Authors: HAGELE THOMAS , KAUFMAN BRUCE , WHITAKER JOHN O. , KLOMPEN HANS
Published: February 2019

The genus Euryparasitus in North America is revised on the basis of the deutonymphal instar. Four species are recognized, two previously described and two new. The four species fall into two easily recognizable groups. The first group, consisting of E. longicheta Bondartchuk & Buyakova and E. occidentalis n. sp., lacks barbed setae on the idiosoma and serrations on the anterior free margin of the gnathotectum, and shows a well differentiated acrotarsus on legs I. The second, consisting of E. calcarator (Banks) and E. maseri n. sp., has barbed setae on the idiosoma and serrations on the anterior margin of the gnathotectum, but lacks a well differentiated acrotarsus I. A key to the deutonymphs for the species of Euryparasitus and genera of Euryparasitidae in North America is provided. The host association pattern of Euryparasitus species appears to fit better with ecological than with host specificity.
A new species of Lissoporcellana (Crustacea: Decapoda: Anomura: Porcellanidae) from Okinawa, southwestern Japan
Authors: OSAWA MASAYUKI , FUJITA YOSHIHISA
Published: February 2019

Lissoporcellana flagellicola, a new porcellanid crab associated with an unidentified species of unbranched sea whip (Ellisellidae), is described from Okinawa-jima Island, the Ryukyu Islands, southwestern Japan. The new species appears close to L. quadrilobata (Miers) but differs by the less elongate carapace and the shape of the lateral lobes of the rostrum and terminal claws of the ambulatory dactyli.
Three new species of the genus Anthaxia Eschscholtz, 1829 from Madagascar (Coleoptera: Buprestidae: Buprestinae: Anthaxiini)
Authors: BÍLÝ SVATOPLUK
Published: February 2019

Description of three new species of the genus Anthaxia Eschscholtz, 1829 from Madagascar (prov. Toliara): Anthaxia (Haplanthaxia) antennata sp. nov., A. (H.) auroviolacea sp. nov. and A. (H.) onilahyiana sp. nov. All three species are illustrated and compared with the most similar congeners.
Two new species of the Glyptosternine catfish genus Euchiloglanis (Teleostei: Sisoridae) from southwest China with redescriptions of E. davidi and E. kishinouyei
Authors: ZHOU WEI , LI XU , THOMSON ALFRED W.
Published: February 2019

Two new species of the sisorid catfish genus Euchiloglanis are described from the upper Yangtze River and the upper Black River drainage (Red River basin) in China. Euchiloglanis longibarbatus n. sp. from the upper Yangtze River differs from E. davidi, E. kishinouyei and E. longus n. sp. by having an elongate and threadlike maxillary barbel with a pointed tip reaching posteriorly to beyond the gill opening. It differs from E. dorsoarcus by having the anal-fin origin closer to the caudal-fin base than to the pelvic-fin origin, and from E. phongthoensis by having the anus located midway between the pelvic-fin insertion and the anal-fin origin. Euchiloglanis longus n. sp. from the upper Black River drainage differs from E. davidi by having the length of the pectoral fin equal to 78.4–89.5% of the distance between the origins of the pectoral and pelvic fins, and from E. kishinouyei and E. longibarbatus n. sp. by having the distance between the origins of the pelvic and anal fins equal to 108.9–140.6% of the distance between the origins of the pectoral and pelvic fins. It further differs from E. davidi, E. kishinouyei, and E. longibarbatus n. sp. by having the depth of the caudal peduncle equal to 14.1–27.0% of the length of the caudal peduncle. It differs from E. dorsoarcus by having the anal-fin origin closer to the caudal-fin base than to the pelvic-fin origin, and from E. phongthoensis by having the distance from the adipose-fin origin to the dorsal-fin insertion equal to about 50% of the adipose-fin base length. Euchiloglanis davidi and E. kishinouyei are redescribed from recently collected specimens from their type localities. A lectotype is designated for E. davidi and a neotype designated for E. kishinouyei. Euchiloglanis kishinouyei is distinguished from E. davidi by lacking an indentation in the premaxillary tooth band, by having the length of the pectoral fin equal to 75.5–89.6% of the distance between the insertions of the pectoral and pelvic fins, and by having the distance between the insertion of the pelvic-fin and the anus equal to 81.5–97.5% of the distance between the insertions of the pectoral and pelvic fins. A key to the species of is Euchiloglanis also provided.
Cornugon (Hymenoptera: Eulophidae: Entedoninae) a new genus from tropical America including ten new species
Authors: HANSSON CHRISTER
Published: February 2019

Cornugon gen. nov. (Hymenoptera: Eulophidae: Entedoninae) is described from the Neotropical region, including ten new species from Costa Rica, Ecuador, Honduras and Mexico: C. albicoxa, C. anais, C. bicornis, C. diabolos, C. diceros, C. gibberum, C. leios, C. petiolatum, C. reticulatum, and C. unicornis spp. nov. The monophyly of the genus is demonstrated through two putative morphological autapomorphies. One of the autapomorphies is in a recently discovered character system, wing interference colour patterns (WIPs). WIPs are used here for the first time at the generic level for the classification of insects. Cornugon is compared to Pediobius Walker with which it shares the most apomorphies.
Separation of Anthalona gen.n. from Alona Baird, 1843 (Branchiopoda: Cladocera: Anomopoda): morphology and evolution of scraping stenothermic alonines
Authors: DAMME KAY VAN , SINEV ARTEM YU , DUMONT HENRI J.
Published: February 2019

We move the freshwater cladocerans Alona verrucosa Sars, 1901 and related species from the lump genus Alona Baird, 1843 (Anomopoda: Chydoridae: Aloninae) to Anthalona gen. n. We revise the group and describe five new taxa from tropics and subtropics: Anthalona simplex n. sp., DR Congo, A. harti n. sp., Africa (with two subspecies), A. acuta n. sp., Brazil and A. obtusa n. sp., Borneo. Anthalona is a genus of relatively small-sized, stenothermic Aloninae with specializations for scraping. Within the subfamily, the new genus is closest to Karualona and Coronatella. We discuss possible homoplasy of limb characters between latter and Anthalona. The genus can be considered an important case study in an evolutionary trend towards oligomerization of limb structures at low taxonomical levels and within an extant crustacean lineage. Composition of the genus reflects a complex history. Species with unusual morphologies (A. brandorffi, A. simplex n. sp.) appear basal in our phylogeny and may be relicts, in comparison to a pantropical A. verrucosa complex of similar forms. Several species may coexist in a single water body such as A. acuta n. sp. and A. verrucosa in the Neotropics, suggesting niche separation.
Description of Hydraena (s.str.) tekmanensis (Coleoptera: Hydraenidae) from northeastern Turkey
Authors: JÄCH MANFRED A. , SKALE ANDRE , KASAPOĞLU AHMET
Published: February 2019

Hydraena (s.str.) tekmanensis sp. n. is described from northeastern Turkey (Erzincan and Erzurum Provinces). It is tentatively assigned to the H. rufipes group (H. eichleri complex).
Cophecheilus bamen, a new genus and species of labeonine fishes (Teleostei: Cyprinidae) from South China
Authors: ZHU YU , ZHANG E , ZHANG MING , HAN YAO-QUAN
Published: February 2019

A new garrain genus and species are described from a tributary of the Zuo-River of the Pearl River drainage in Guangxi Province, South China. Cophecheilus, new genus, is separated from all other Asian garrains by its uniquely modified oromandibular morphology; i.e., rostral cap with a shallow, arched, subdistal depression extending almost the full length of its ventral margin; upper lip greatly reduced to a thin membranous fold medially adnate to the upper jaw, but reflected slightly from its distal margin, and laterally produced into a frenum connecting the upper jaw with the lower lip. The new species, Cophecheilus bamen, has an inconspicuous longitudinal black stripe extending along each side of the body.
Review of the genus Paragolsinda Breuning, 1956 (Coleoptera, Cerambycidae, Lamiinae, Mesosini), with reconsideration of the endophallic terminology
Authors: YAMASAKO JUNSUKE , OHBAYASHI NOBUO
Published: February 2019

The genus Paragolsinda Breuning, 1956 is reviewed. To date, only the type species of the genus, P. fruhstorferi Breuning, 1956 has been known. Two species of the genus Mesoereis Matsushita, 1933, M. tonkinensis Breuning, 1938 and M. obscurus Matsushita, 1933, are transferred to the genus Paragolsinda by the features of external structure judged from the photographs of the type specimen of P. fruhstorferi. A new species, Paragolsinda siamensis sp. nov. from Northern Thailand, is described. The structures of endophallus except for the type species are described with illustrations. The terminology for the structure of endophallus employed in our previous paper is partly modified in accordance with recent references.
The nymph of Anacroneuria debilis (Pictet, 1841) (Plecoptera: Perlidae)
Authors: DA SILVA FERNANDA AVELINO CAPISTRANO , BARBOSA LEANDRO SILVA , DE ALMEIDA GISELE LUZIANE
Published: February 2019

The nymph of Anacroneuria debilis (Pictet, 1841) is described, being the first immature of this genus described in Brazil. It can be distinguished from other described Anacroneuria nymphs by: (1) the presences of a row of fine, long bristles along the tibia; (2) by the absence of long bristles on the frons; (3) due to its distinctive color pattern; and (4) by the presences of rows of bristles on the basal third of the cercus.
Description of two new species of Psyllaephagus Ashmead (Hymenoptera: Encyrtidae) parasitizing Phacopteron lentiginosum Buckton (Hemiptera: Psyllidae), a leaf gall-former of Garuga pinnata Roxburgh (Burseraceae)
Authors: SINGH SUDHIR , SINGH KARAN PAL
Published: February 2019

Two new species of Encyrtidae, Psyllaephagus phacopteron sp. nov. and Psyllaephagus garuga sp. nov. (Hymenoptera: Chalcidoidea) from Dehradun, Uttarakhand, India, that parasitize Phacopteron lentiginosum Buckton (Hemiptera: Psyllidae), a leaf-galler of Garuga pinnata Roxburgh (Burseraceae), are described. The two species are differentiated from other known Indian species of the genus through modifying a previously published key to species.
A new species of Eukoenenia (Palpigradi: Eukoeneniidae) from Brazilian iron caves
Authors: SOUZA MAYSA F. V. R. , FERREIRA RODRIGO L.
Published: February 2019

Eukoenenia ferratilis sp. n. is described from 7 adults (6 females and 1 male) and 1 immature (stage A) collected in iron caves in the municipalities of Moeda and Brumadinho, Minas Gerais, Brazil. The new species shares characteristics with several species of the genus Eukoenenia Börner, 1901 being related to the species Eukoenenia mirabilis (Grassi & Calandruccio, 1885) and Eukoenenia berlesei (Silvestri, 1903), but the shape and chaetotaxy of the male and female genitalia are distinctive
A revision of the genus Olivancillaria (Mollusca: Olividae) from the southwestern Atlantic
Authors: TESO VALERIA , PASTORINO GUIDO
Published: February 2019

The genus Olivancillaria is revised and restricted to eight living species: O. deshayesiana, O. carcellesi, O. urceus, O. contortuplicata, O. orbignyi, O. teaguei, O. auricularia and O. vesica. The last two species were previously considered as subspecies. The name O. uretai is a junior synonym of O. orbignyi. The genus Olivancillaria is endemic to the southwestern Atlantic, ranging from Bahia state, Brazil (~12°S) to Chubut province (42°37’S), Argentina, intertidal to 70 m depth. It is a clear representative of the Argentine Malacological province. Redescriptions and re-illustration of types were done for each species. Shell ultrastructure, radulae, penes, siphon papillae and egg capsules are described and illustrated by SEM images. A geometric morphometric analysis was carried out to confirm shell variation on size and shape among species. The geographic distribution of each species is provided based on field observations as well as on museum records.
DNA barcoding identifies a third invasive species of Eleutherodactylus (Anura: Eleutherodactylidae) in Panama City, Panama
Authors: CRAWFORD ANDREW J. , ALONSO ROBERTO , A. CÉSAR A. JARAMILLO , SUCRE SAMUEL , D. ROBERTO IBÁÑEZ
Published: February 2019

Eleutherodactylus planirostris Cope 1862, the greenhouse frog, is native to the Bahamas, Cayman Islands and Cuba, with introduced populations in the southeastern United States, Jamaica, Honduras, Mexico, Grenada, Caicos Islands, the Miskito Cays of Nicaragua, and on the Pacific islands of Hawaii and Guam (Heinicke et al. 2011; Somma 2011). This species was not previously recorded in the Republic of Panama, although two other invasive Eleutherodactylus species, E. antillensis Reinhardt & Lütken 1863 1862 and E. johnstonei Barbour 1914, have established populations within Panama City (Jaramillo et al. 2010). Based on standardized mitochondrial gene fragments, we report for the first time the presence of E. planirostris in Panama.
Illustrated overview and identification key to Cameroonian Ceratocanthinae beetles (Coleoptera: Scarabaeoidea: Hybosoridae) with description of four new species
Authors: BALLERIO ALBERTO , GILL BRUCE D. , GREBENNIKOV VASILY V.
Published: February 2019

We summarize present day knowledge on Cameroonian Ceratocanthinae and report new findings made during a monthlong collecting trip in 2006. Four forested localities were surveyed: Mt. Oku at 2200–2800 m, Korup National Park at 300 m, Mt. Kupé at 1550 m and Mt. Cameroon at Bakingili village at 250 m. In total we collected 242 specimens representing 14 species, among them nine species new to Cameroon and eight species likely new to science. Four flightless new species are described: Congomostes hintelmanni n. sp., Baloghianestes oribatidiformis n. sp., B. korupensis n. sp. and B. anceps n. sp. Other Ceratocanthinae species presently known from Cameroon are: Baloghianestes lissoubai Paulian, 1968, Callophilharmostes fleutiauxi (Paulian, 1942), Carinophilharmostes vadoni (Paulian, 1937), Melanophilharmostes burgeoni (Paulian, 1946), M. demirei Paulian, 1977, M. zicsii (Paulian, 1968), Philharmostes (Holophilharmostes) badius (Petrovitz, 1967), Petrovitzostes guineensis (Petrovitz, 1968), P. elytratus (Paulian, 1946), P. endroedyi (Paulian, 1974), along with three unnamed species of Melanophilharmostes Paulian, 1968 and one unnamed species of Pseudopterorthochaetes Paulian, 1977. Twelve Cameroonian Ceratocanthinae species are keyed and all 14 recently collected species are illustrated with habitus images.
The identity of Paratrizygia conformis Tonnoir (Diptera, Mycetophilidae), with comments on its systematic position
Authors: DE SOUZA AMORIM DALTON , OLIVEIRA SARAH SIQUEIRA , MCALISTER ERICA
Published: February 2019

Paratrizygia conformis, the type–species of the genus Paratrizygia, from Tasmania, is redescribed from the holotype. The wing venation and male terminalia are illustrated in detail. The question of the monophyly of the genus—which has four additional species in Chile and southern Argentina, and four species in the Atlantic Forest, in Brazil—is addressed. Comments are made on the relationships of the genus in the Azana–group of Sciophilinae. The hypothesis of monophyly of Paratrizygia is retained, as indicated by the presence of modified, elongated spines on a distal fold of tergite 9.
Sea snakes (Serpentes: subfamilies Hydrophiinae and Laticaudinae) in Vietnam: a comprehensive checklist and an updated identification key
Authors: RASMUSSEN ARNE REDSTED , ELMBERG JOHAN , GRAVLUND PETER , INEICH IVAN
Published: February 2019

Sea snakes (Elapidae, subfamilies Hydrophiinae and Laticaudinae) reach a very high species richness in Southeast Asia, but most countries in the region still lack comprehensive and up-to-date identification tools for these snakes. We present an updated checklist of sea snakes in Vietnam. We also provide diagnostic characters for all species and a new complete identification key, chiefly based on easy-to-use external characters. The checklist and key cover the 25 species documented from Vietnam, as well as three likely future additions to its sea snake fauna. By surveying incoming fishing vessels between Nha Trang and the mouth of Mekong River in 2000–2001, we were able to document two species new for Vietnamese waters: Hydrophis belcheri and H. pachycercos. Through these surveys we also secured four specimens of the rare endemic species H. parviceps, formerly known only from two specimens. A comprehensive bibliography of the literature treating sea snakes in Vietnamese waters is provided.Identification key: bibliography, biodiversity, diagnostic characters, Vietnamese waters
High genetic differentiation within the Hemidactylus turcicus complex (Reptilia: Gekkonidae) in the Levant, with comments on the phylogeny and systematics of the genus
Authors: MORAVEC JIŘÍ , KRATOCHVÍL LUKÁŠ , AMR ZUAIR S. , JANDZIK DAVID , ŠMÍD JIŘÍ , GVOŽDÍK VÁCLAV
Published: February 2019

The molecular phylogeny of Hemidactylus turcicus (sensu lato) and related Levantine taxa of Hemidactylus geckos were studied using mitochondrial DNA sequence data. Five main phylogenetic lineages were detected within the distribution area of H. turcicus: (1) H. turcicus (sensu stricto) from the Mediterranean region comprising two widely distributed haplotype groups divergent by 2.1%; (2) H. cf. turcicus from north-eastern Israel forming a divergent (7.2%) sister lineage to H. turcicus s.s.; (3) H. turcicus lavadeserticus from the black Syrian basalt desert; (4) H. mindiae from southern Jordan; and (5) a highly supported lineage representing an unnamed species of Hemidactylus distributed in southern Syria and Jordan. On the basis of the obtained phylogenies, genetic divergences and morphological comparisons, the subspecies H. turcicus lavadeserticus is elevated to full species level and the unnamed Hemidactylus clade is described as a new species, H. dawudazraqi sp. n. In addition, an unnamed lineage of Hemidactylus from southern Sinai and exceptional genetic differentiation within “H. turcicus-like” forms from Yemen are reported, the type locality of H. turcicus is discussed and also comments are provided on the phylogeny and systematics of the genus Hemidactylus.
Two new Gammarus species (Crustacea: Amphipoda: Gammaridae) from Zagros Mountains, Iran
Authors: HEKMATARA MARYAM , SARI ALIREZA , BALADEHI MOHAMMAD-HADI HEIDARY
Published: February 2019

The present study tries to focus on describing two new species belonging to genus Gammarus from western Iran along the Zagros Mountains range. The most remarkable feature of Gammarus hegmatanensis sp. n. is the shape of epimeral plate 3, which is sharply pointed posteriorly with a distinct lobate anterior margin. This species has some similarities with and differences from some other species of Gammarus pulex–group such as G. parthicus and G. syriacus. The other species, G. sirvannus sp. n. with elongated eyes is similar to G. duebeni, G. lobifer, G. balutchi and G. loeffleri, but it shows prominent morphological differences and a distinct geographical distribution from these species. These new findings shed more light on the information available on amphipod fauna of Iran.
Description of two new Asian Pristaulacus Kieffer 1900 (Hymenoptera: Aulacidae)
Authors: TURRISI GIUSEPPE FABRIZIO , WATANABE KYOHEI
Published: February 2019

Two Aulacidae from Asia, Pristaulacus japonicus Turrisi & Watanabe, sp.n. (Japan) and Pristaulacus takakuwai Turrisi & Watanabe, sp.n. (Thailand), are described and illustrated. The former species is very similar to the Palearctic Pristaulacus gibbator (Thunberg 1822) and is recognized by the different sculpturing of the upper part of the mesoand metapleura, slightly longer petiole, longer ovipositor, and several features of the male genital capsule, e.g., the shape of the apex of the paramere, lamina volsellaris and penis valve. The latter species is not obviously allied to any other described Oriental Pristaulacus and is recognized by the combination of the following characters: colour pattern, with setae of the body golden, wings yellowish hyaline, fore wing with a moderately wide substigmal brown spot and apex infuscated, hind leg mostly black to black-brown, shape of the head, with temple well developed, and ovipositor relatively short, 0.9× fore wing length. Images of both treated species are freely available at the web site: http://morphbank.net.
Opheliidae (Annelida: Polychaeta) from the western Pacific islands, including five new species
Authors: MAGALHÃES WAGNER F. , RIZZO ALEXANDRA E. , BAILEY-BROCK JULIE H.
Published: February 2019

Intertidal, shallow subtidal and deep-water opheliids from the Hawaiian Islands, Guam in the Mariana Islands and Tutuila in American Samoa were examined and nine species are described, five of which are new. Armandia garretti sp. nov. and A. circumpapillata sp. nov. are new species proposed for previous records of A. intermedia Fauvel, 1902 from Hawaii. Armandia cf. paraintermedia Parapar & Moreira, 2015 is recorded from intertidal muddy bottoms of Tutuila and A. amakusaesis Saito, Tamaki & Imajima, 2000 from subtidal regions in Guam. Polyophthalmus mauliola sp. nov. is described from Hawaiian material and a comparative table with relevant morphological features of eight species of this genus is presented. Ophelina cf. chaetifera (Hartman, 1965) and Ophelina abranchiata Stop-Bowitz, 1948 are new records to Hawaii from up to 507 m depth, Ophelina kohni sp. nov. is described from shallow waters of Guam and Ophelina manana sp. nov. is described from Mamala Bay, Oahu.
Procladius travassosi (Oliveira, Messias & Silva-Vasconcelos, 1992) regarded as a new junior synonym of Procladius stroudi Roback 1982 (Diptera: Chironomidae: Tanypodinae)
Authors: DA SILVA FABIO LAURINDO
Published: February 2019

Although recent years have seen increased activity regarding chironomid systematics in the Neotropical region (e.g. Oliveira et al. 2011, 2013, Trivinho-Strixino et al. 2013, 2015, Amora et al. 2015, Parise & Pinho 2016, Andersen et al. 2017, Silva & Song 2018, Trivinho-Strixino & Silva 2018), particularly concerning the subfamily Tanypodinae (e.g. Oliveira & Silva 2011, Silva & Wiedenbrug 2015, Silva et al. 2014a,b; Siri et al. 2015, Silva & Oliveira 2016, Silva & Ferrington 2018), when it comes to some species-rich groups, such as Djalmabatista Fittkau, Larsia Fittkau and Procladius Skuse, the taxonomic knowledge remains fragmentary, with only a few species recorded to the Neotropics.
Assessing the Evolution of Soil Moisture and Vegetation Conditions during a Flash Drought–Flash Recovery Sequence over the South-Central United States
Authors: Otkin Jason A. , Zhong Yafang , Hunt Eric D. , Basara Jeff , Svoboda Mark , Anderson Martha C. , Hain Christopher
Published: February 2019

This study examines the evolution of soil moisture, evapotranspiration, vegetation, and atmospheric conditions during an unusual flash drought–flash recovery sequence that occurred across the south-central United States during 2015. This event was characterized by a period of rapid drought intensification (flash drought) during late summer that was terminated by heavy rainfall at the end of October that eliminated the extreme drought conditions over a 2-week period (flash recovery). A detailed analysis was performed using time series of environmental variables derived from meteorological, remote sensing, and land surface modeling datasets. Though the analysis revealed a similar progression of cascading effects in each region, characteristics of the flash drought such as its onset time, rate of intensification, and vegetation impacts differed between regions due to variations in the antecedent conditions and the atmospheric anomalies during its growth. Overall, flash drought signals initially appeared in the near-surface soil moisture, followed closely by reductions in evapotranspiration. Total column soil moisture deficits took longer to develop, especially in the western part of the region where heavy rainfall during the spring and early summer led to large moisture surpluses. Large differences were noted in how land surface models in the North American Land Data Assimilation System depicted soil moisture evolution during the flash drought; however, the models were more similar in their assessment of conditions during the flash recovery period. This study illustrates the need to use multiple datasets to track the evolution and impacts of rapidly evolving flash drought and flash recovery events.
Effects of High Resolution and Spinup Time on Modeled North Atlantic Circulation
Authors: Danek Christopher , Scholz Patrick , Lohmann Gerrit
Published: February 2019

The influence of a high horizontal resolution (5–15 km) on the general circulation and hydrography in the North Atlantic is investigated using the Finite Element Sea Ice–Ocean Model (FESOM). We find a stronger shift of the upper-ocean circulation and water mass properties during the model spinup in the high-resolution model version compared to the low-resolution (~1°) control run. In quasi equilibrium, the high-resolution model is able to reduce typical low-resolution model biases. Especially, it exhibits a weaker salinification of the North Atlantic subpolar gyre and a reduced mixed layer depth in the Labrador Sea. However, during the spinup adjustment, we see that initially improved high-resolution features partially reduce over time: the strength of the Atlantic overturning and the path of the North Atlantic Current are not maintained, and hence hydrographic biases known from low-resolution ocean models return in the high-resolution quasi-equilibrium state. We identify long baroclinic Rossby waves as a potential cause for the strong upper-ocean adjustment of the high-resolution model and conclude that a high horizontal resolution improves the state of the modeled ocean but the model integration length should be chosen carefully.
Micro powder poly lactic acid/carbon black composite as a bio printing ink
Authors: Salehi Mohammad Mahdi , Ataeefard Maryam
Published: February 2019

Bio toners represent a novel class of electrostatic imaging powders which provide sustainability, compostability and bio-degradability. Due to the advantages of bio toners, this paper focused on the preparation of a bio-based micro powdered composite derived from poly lactic acid and carbon black to apply it as an electrophotographic printing bio ink. The bio toner was characterized by particle size analyzer, differential scanning calorimetry, scanning electron microscopy, Fourier-transform infrared spectroscopy and thermogravimetric analysis. The viscoelastic properties were calculated with rheometrics mechanical spectrometer. These properties were then used to estimate the strain deformation of the toner as it passes through the nip with arbitrary residence time and nip pressure as a function of gel content. The outcomes of this study proved that the poly lactic acid is an appropriate polymer for the production of toners in terms of processing, printing efficiency. The bio toners' results demonstrated the promising and worthy outcomes in comparison to commercially available petroleum-based toners.
Research on secure control and communication for cyber-physical systems under cyber-attacks
Authors: Li Wei , Shi Yahong , Li Yajie
Published: February 2019

This paper investigates the co-design problem of secure control and communication quality for cyber-physical systems (CPSs) to solve unavoidable problems, in which both actuator faults and cyber-attacks occur in practical implementations of CPSs. Firstly, based on the discrete event-triggered communication scheme (DETCS), a system framework for active fault-tolerant and passive attack-tolerant control is proposed. Then, a model of a closed-loop CPS is established that integrates a triggering condition, actuator faults and cyber-attacks into a single uniform framework. Secondly, using the partition and definition of different delay functions, the appropriate Lyapunov functions are constructed based on the time-delay system theory, and design methods for a robust observer with passive attack tolerance for estimation of the state and fault, and an active fault-tolerant and passive attack-tolerant controller are developed in terms of linear matrix inequality. In this way, the co-design goal involving active fault tolerant control, passive attack-tolerant control and the communication network is achieved. Finally, a simulation experiment of a quadruple-tank is carried out to demonstrate the effectiveness of the proposed method.
Predictors of Emirati Marital Satisfaction: Contributions of Psychological Health and Family Functioning
Authors: Al-Darmaki Fatima , Dodeen Hamzeh , Yaaqeib Saad , Ahammed Shaima , Jacobson Mary J.
Published: February 2019

Based on previous work on factors predicting marital satisfaction in Emirati society, this study aimed at examining whether anxiety and depression as well as perceived family functioning would predict marital satisfaction among a sample of 1,041 Emirati married individuals. Participants responded to the Emirati Marital Satisfaction Scale along with an Arabic translation of the General Functioning (GF12) subscale of the McMaster Family Assessment Device and the Primary Care Anxiety and Depression Scale. Marital satisfaction negatively correlated with lower levels of family functioning as well as to depression and anxiety. Lower levels of depression and anxiety as well as healthy family functioning together explained about 50% of the variance in the marital satisfaction. The interaction between gender and depression and anxiety was insignificant. Findings are discussed within the United Arab Emirates cultural context.
Exploring Criteria for Assessing the Severity of Oil Spills
Authors: Shi Xin , Wang Jie , Wang Ying , Xu Dong
Published: February 2019

Considering the characteristics of the real-time assessment of oil spill severity, this study, by reference to grounded theory and classical statistical methods, proposed a text and data mining model to obtain criteria for assessing oil spill severity. The application of the text and data mining model in the experimental case/scenario, which is designed based on historical data of oil spills in a specific region and those recorded in Lloyd’s casualty database, demonstrated that the proposed model is feasible, universally applicable and requires low overhead. In actual practice, data obtained from casualty investigation reports and casualty databases can be considerably incomplete. Improving the completeness and accuracy of accident data is crucial for the further effective use of the text and data mining model in accident-related research.
Multifunctional chitosan-coated poly(lactic-co-glycolic acid) nanoparticles for spatiotemporally controlled codelivery of ceramide and C-phycocyanin to treat atopic dermatitis
Authors: Min Seul Ki , Lee Hoo Cheol , Song Hyeongi , Shin Hwa Sung
Published: February 2019

Atopic dermatitis is an inflammatory disease associated with defective skin barrier. The co-administration of a lipid-enhancing skin barrier composed of ceramide with an anti-inflammatory agent is required to effectively treat atopic dermatitis. As atopic dermatitis treatment is affected by the dosage and frequency of medication, the development of nanoparticles that have long-term efficacy with a single dose would be advantageous. In this study, skin-sensitive chitosan nanoparticles codelivering ceramide and C-phycocyanin were developed to provide anti-inflammatory effects with no cytotoxicity, and their effect on stratum corneum formation in a rat atopic dermatitis model was examined. Analysis of the messenger RNA expression of keratinization factors demonstrated that the stratum corneum–formation effect of poly(lactic-co-glycolic acid) nanoparticles containing ceramide was similar to or higher than that of ceramide alone. Compared to the nanoparticles without C-phycocyanin, nanoparticles coated with C-phycocyanin and chitosan attenuated histamine release. In addition, despite frequent washing, the nanoparticles were well fixed to the epidermis after their administration. The results suggest that a single treatment with the combination of lipid therapy/anti-inflammatory nanoparticles is a convenient and high-efficiency means to increase stratum corneum formation in atopic dermatitis patients.
Dynamics observer for the longitudinal behavior of a wheelset on a roller rig
Authors: Schwarz Christoph , Brembeck Jonathan , Heckmann Benjamin
Published: February 2019

The presented work illustrates the synthesis of a nonlinear model-based observer for the longitudinal dynamics estimation of a wheelset. This approach offers some significant improvements, such as an enhanced adherence to prescribed brake distances and an advanced usability of the condition-based maintenance of brake systems. The investigation of a single wheelset in a test rig environment enables, for example, the usage of an extended set of sensors to reliably validate the observers. The presented observer design process covers three main steps: identification of the characteristic system disturbances, implementation of the nonlinear observer dynamics, and parametrization of the observer via multicase optimization. With regard to the longitudinal dynamics, the variations of the friction conditions in the wheel–rail interface and in the interface between brake pads and brake disc have a crucial influence. Therefore, a parameter estimator and a disturbance observer are implemented, since these methods allow for a specific consideration of these disturbances. The obtained results prove that the observers accurately estimate the system behavior and provide reliable information on the longitudinal dynamics.
Efficacy and safety of the nucleoside analog GS-441524 for treatment of cats with naturally occurring feline infectious peritonitis
Authors: Pedersen Niels C , Perron Michel , Bannasch Michael , Montgomery Elizabeth , Murakami Eisuke , Liepnieks Molly , Liu Hongwei
Published: February 2019

Objectives

The aim of this study was to determine the safety and efficacy of the nucleoside analog GS-441524 for cats suffering from various forms of naturally acquired feline infectious peritonitis (FIP).

Methods

Cats ranged from 3.4–73 months of age (mean 13.6 months); 26 had effusive or dry-to-effusive FIP and five had non-effusive disease. Cats with severe neurological and ocular FIP were not recruited. The group was started on GS-441524 at a dosage of 2.0 mg/kg SC q24h for at least 12 weeks and increased when indicated to 4.0 mg/kg SC q24h.

Results

Four of the 31 cats that presented with severe disease died or were euthanized within 2–5 days and a fifth cat after 26 days. The 26 remaining cats completed the planned 12 weeks or more of treatment. Eighteen of these 26 cats remain healthy at the time of publication (OnlineFirst, February 2019) after one round of treatment, while eight others suffered disease relapses within 3–84 days. Six of the relapses were non-neurological and two neurological. Three of the eight relapsing cats were treated again at the same dosage, while five cats had the dosage increased from 2.0 to 4.0 mg/kg q24h. The five cats treated a second time at the higher dosage, including one with neurological disease, responded well and also remain healthy at the time of publication. However, one of the three cats re-treated at the original lower dosage relapsed with neurological disease and was euthanized, while the two remaining cats responded favorably but relapsed a second time. These two cats were successfully treated a third time at the higher dosage, producing 25 long-time survivors. One of the 25 successfully treated cats was subsequently euthanized due to presumably unrelated heart disease, while 24 remain healthy.

Conclusions and relevance

GS-441524 was shown to be a safe and effective treatment for FIP. The optimum dosage was found to be 4.0 mg/kg SC q24h for at least 12 weeks.
Comparison of aflibercept and ranibizumab in diabetic macular edema associated with subretinal detachment
Authors: Ozkaya Abdullah , Demir Gokhan , Kirmaci Asli
Published: February 2019

Purpose:

To compare the efficacy of ranibizumab and aflibercept in the treatment of diabetic macular edema associated with subfoveal retinal detachment.

Methods:

This is a retrospective, comparative study. The treatment-naïve diabetic macular edema patients who had diabetic macular edema associated with subfoveal retinal detachment and underwent intravitreal aflibercept or intravitreal ranibizumab treatment were included. The patients were treated on a pro re nata treatment regimen after a loading dose of 3-monthly injections and the follow-up time was 12 months. The primary outcome measure of this study was the presence of subfoveal retinal detachment after treatment at different time points. The secondary outcome measures were the change in best corrected visual acuity and central retinal thickness.

Results:

A total of 46 eyes of 46 patients were included. The aflibercept group consisted of 20 and the ranibizumab group consisted of 26 eyes. During the follow-up period of 12 months, subfoveal retinal detachment was completely resolved in 75% versus 57.7% of the eyes at month 3 (p = 0.2), 90% versus 76.9% at month 6 (p = 0.2), 90% versus 65.4% at month 9 (p = 0.05), and 100% versus 80.8% at month 12 (p = 0.03) in the intravitreal aflibercept versus intravitreal ranibizumab groups. The change in best corrected visual acuity was not statistically different between the groups at months 3, 6, 9, and 12, respectively (p > 0.05 for all).

Conclusion:

Both intravitreal aflibercept and intravitreal ranibizumab were effective in regards to anatomical and functional outcomes of diabetic macular edema patients associated with subfoveal retinal detachment. Interestingly, intravitreal aflibercept seemed more effective than intravitreal ranibizumab in the resolution of subfoveal retinal detachment at month 12.
Anticoagulation risk assessment for patients with non-valvular atrial fibrillation and venous thromboembolism: A clinical review
Authors: Pallazola Vincent A , Kapoor Rishi K , Kapoor Karan , McEvoy John W , Blumenthal Roger S , Gluckman Ty J
Published: February 2019

Non-valvular atrial fibrillation and venous thromboembolism anticoagulation risk assessment tools have been increasingly utilized to guide implementation and duration of anticoagulant therapy. Anticoagulation significantly reduces stroke and recurrent venous thromboembolism risk, but comes at the cost of increased risk of major and clinically relevant non-major bleeding. The decision for anticoagulation in high-risk patients is complicated by the fact that many risk factors associated with increased thromboembolic risk are simultaneously associated with increased bleeding risk. Traditional risk assessment tools rely heavily on age, sex, and presence of cardiovascular comorbidities, with newer tools additionally taking into account changes in risk factors over time and novel biomarkers to facilitate more personalized risk assessment. These tools may help counsel and inform patients about the risks and benefits of starting or continuing anticoagulant therapy and can identify patients who may benefit from more careful management. Although the ability to predict anticoagulant-associated hemorrhagic risk is modest, ischemic and bleeding risk scores have been shown to add significant value to therapeutic management decisions. Ultimately, further work is needed to optimally implement accurate and actionable risk stratification into clinical practice.
Hypersingular integral equations of the first kind: A modified homotopy perturbation method and its application to vibration and active control
Authors: Novin Reza , Fariborzi Araghi Mohammad Ali
Published: February 2019

This paper attempts to propose and investigate a modification of the homotopy perturbation method to study hypersingular integral equations of the first kind. Along with considering this matter, of course, the novel method has been compared with the standard homotopy perturbation method. This method can be conveniently fast to get the exact solutions. The validity and reliability of the proposed scheme are discussed. Different examples are included to prove so. According to the results, we further state that new simple homotopy perturbation method is so efficient and promises the exact solution. The modification of the homotopy perturbation method has been discovered to be the significant ideal tool in dealing with the complicated function-theoretic analytical structures within an analytical method.
Accelerated weathering of bolted joints prepared from woven glass fiber-reinforced nanocomposites
Authors: Chani Kulwinder Singh , Saini JS , Bhunia H
Published: February 2019

This work deals with the accelerated aging of the bolted joints prepared from glass fiber-reinforced nanocomposite laminates. ASTM D5961 was used to design the bolted joint, and the geometric parameters, i.e. width-to hole-diameter ( W/ D) ratio and edge distance-to-hole diameter ( E/ D) ratio were fixed to 6 and 5, respectively. ASTM D1544 was used for accelerated aging, and a maximum of 500 h cyclical ultraviolet exposure, 8 h of ultraviolet radiation at 60 ℃ followed by 4 h of condensation at 50 ℃, was given to the specimens. A full factorial design of experiment was conducted on important control factors, i.e. aging time, bolt torque, and material variation, using response surface methodology. To investigate the effect of nanoclay content, a range of 0–5 wt% was investigated. Specimens with 3 wt% of nanoclay demonstrated optimum tensile strength and were selected to manufacture the bolted joint. Nanoplatelets having high aspect ratio increased the specific surface area and thus the tensile strength of the nanocomposite. It was found that the strength of the joints prepared with and without the nanoclay content decreased with the increase in the duration of aging. However, the joints with the nanoclay content had higher failure loads. The strength retention in the joints with nanoclay content was more in comparison to the joints made with neat epoxy. Nanoclay acted as a mechanical interlock at the fiber–matrix interface and improved the interfacial bond strength. A good dispersion of nanoclay also acts as a barrier to the moisture, which eventually reduces the degradation of the composite material due to the lesser fiber–matrix de-bonding under accelerated aging conditions.
Arts-based interventions for youth with mental health challenges
Authors: Coholic Diana , Schinke Robert , Oghene Odirin , Dano Kelsey , Jago Mary , McAlister Heather , Grynspan Patricia
Published: February 2019

We facilitated an arts-based mindfulness group program with youths who were receiving short-term in-patient mental health supports within hospital. We aimed to explore the challenges and benefits these marginalized youths experienced through their exposure to the group intervention. Forty pregroup and 24 postgroup interviews were analyzed using a thematic analysis framework.

Findings:

The qualitative findings are presented using creative nonfiction in the form of a composite vignette. The composite vignette portrays the content within the themes, creatively telling a more compelling story that illustrates key points and themes within the data set. The vignette shows how mental health challenges created problems in the youths’ lives. Although most of the youths were initially nervous about participating in the program, the strengths and arts-based nature of the program helped them to connect with others in the group and express themselves. All of the youths reported that the group program was enjoyable and beneficial. They learned to identify what they were feeling/thinking and to express these feelings/thoughts using creative means of expression. Making art helped them to develop their self-awareness and created enjoyment in the group and with the group methods. Also, learning about mindfulness helped them to think in different ways, and to focus and relax more.

Application:

The results of this pilot project warrant further investigation into the benefits of creative strengths-based mindfulness-based interventions for in-patient youths experiencing mental health challenges. The composite vignette centers the youths’ voices and provides a comprehensive account of their experiences.
Efficacy of a nurse-led lipid-lowering secondary prevention intervention in patients hospitalized for ischemic heart disease: A pilot randomized controlled trial
Authors: Ruiz-Bustillo Sonia , Ivern Consol , Badosa Neus , Farre Nuria , Marco Esther , Bruguera Jordi , Cladellas Mercè , Enjuanes Cristina , Cainzos-Achirica Miguel , Marti-Almor Julio , Comin-Colet Josep
Published: February 2019

Background and aims:

Lack of achievement of secondary prevention objectives in patients with ischaemic heart disease remains an unmet need in this patient population. We aimed at evaluating the six-month efficacy of an intensive lipid-lowering intervention, coordinated by nurses and implemented after hospital discharge, in patients hospitalized for an ischaemic heart disease event.

Methods:

Randomized controlled trial, in which a nurse-led intervention including periodic follow-up, serial lipid level controls, and subsequent optimization of lipid-lowering therapy, if appropriate, was compared with standard of care alone in terms of serum lipid-level control at six months after discharge.

Results:

The nurse-led intervention was associated with an improved management of low-density lipoprotein (LDL) cholesterol levels compared with standard of care alone: LDL cholesterol levels ⩽100 mg/dL were achieved in 97% participants in the intervention arm as compared with 67% in the usual care arm ( p value <0.001), the LDL cholesterol ⩽70 mg/dL target recommended by the 2016 European Society of Cardiology guidelines was achieved in 62% vs. 37% participants ( p value 0.047) and the LDL cholesterol reduction of ⩾50% recommended by the American College of Cardiology/American Heart Association in 2013 was achieved in 25.6% of participants in the intervention arm as compared with 2.6% in the usual care arm ( p value 0.007). The intervention was also associated with improved blood pressure control among individuals with hypertension.

Conclusions:

Our findings highlight the opportunity that nurse-led, intensive, post-discharge follow-up plans may represent for achieving LDL cholesterol guideline-recommended management objectives in patients with ischaemic heart disease. These findings should be replicated in larger cohorts.
A Pilot Evaluation of Culture Camps to Increase Alaska Native Youth Wellness
Authors: Barnett Jodi D. , Schmidt Tara C. , Trainor Bridie , Wexler Lisa
Published: February 2019

Suicide is a significant health disparity among Alaska Native youth, which is linked to cultural disruptions brought about by colonialism and historical trauma. Many Indigenous suicide prevention efforts center on revitalizing and connecting youth to their culture to promote mental health and resilience. A common cultural approach to improve psychosocial outcomes is youth culture camps, but there has been little evaluation research to test this association. Here, we conduct a pilot evaluation of a 5-day culture camp developed in two remote regions of Alaska. The camps bring together Alaska Native youth from villages in these regions to take part in subsistence activities, develop new relationships, develop life skills, and learn traditional knowledge and values. This pilot evaluation of the culture camps uses a quantitative pre/post design to examine the outcomes of self-esteem, emotional states, belongingness, mattering to others, and coping skills among participants. Results indicate that culture camps can significantly increase positive mood, feelings of belongingness, and perceived coping of participants. Culture camps are a common suicide prevention effort in Indigenous circumpolar communities, and although limited in scope and design, this pilot evaluation offers some evidence to support culture camps as a health promotion intervention that can reduce suicide risk.