To see the other types of publications on this topic, follow the link: Pacific area, description and travel.
Journal articles on the topic 'Pacific area, description and travel'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Pacific area, description and travel.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Lasarte, Emy S. "Travel Decision and Destination Experiences in the Islands of Caramoan, Philippines: A Visitors’ Descriptive Evaluation." International Journal of Innovative Science and Research Technology 5, no. 7 (July 16, 2020): 24–29. http://dx.doi.org/10.38124/ijisrt20jul022.
Full textAbstract:
An understanding of visitors’ travel desires and experiences are vital in two ways- to adjust destination’s marketing strategies in order to meet the expectation and demand of the travel market and to ensure sustainability of both physical and social attributes of the place. In this sense, this paper evaluated the travel decision and experiences of visitors in the islands of Caramoan considered as one of the Philippines’ uncontaminated and unspoiled natural areas branding it as a “Hidden paradise in the Pacific”. Using a questionnaire-based survey administered to onsite visitors in a descriptive method of research, the islands are visited by tourists due to their desire for nature-based and eco-adventure tour. Their experiences with the destination’s products, services, and hospitality were generally good with emphasis on the accessibility to natural attractions and religious sites, friendliness of the people service providers, suitable weather condition, and organized excursions. With its continued growth, provision of additional nature-based sports activities, and other tourism products and themes should be designed and developed to create diverse recreational participation. In the same way, improving the frontline tourist facilities as well as tourism frontline services is needed to deliver more meaningful visitor experience.
2
Rowell, Maura, and Anne Goodchild. "Effect of Tsunami Damage on Passenger and Forestry Transportation in Pacific County, Washington." Transportation Research Record: Journal of the Transportation Research Board 2604, no. 1 (January 2017): 88–94. http://dx.doi.org/10.3141/2604-11.
Full textAbstract:
The outer coast of Washington State is exposed to significant seismic and tsunami hazards. A Cascadia subduction zone (CSZ) event is expected to cause high earthquake intensities and tsunami inundation, resulting in considerable infrastructure loss, inundation of developed land, and degraded functioning of coastal communities. One area of particular concern is Pacific County, in southwest Washington, where more than 85% of the population is expected to experience severe shaking intensities. This paper establishes the predisaster passenger and freight transportation patterns and the predicted damaged postdisaster road network in Pacific County. The hazard used in the analysis was a CSZ magnitude 9.1 earthquake with Washington asperity and resulting tsunami. The anticipated change in trip distance and the percentage of trips that could no longer be completed were used to compare passenger travel and forestry freight travel. Because passenger and freight travel have different purposes and patterns, understanding how they are affected differently can serve as a foundation for community-based disaster recovery planning to increase community resilience in earthquakes and tsunamis.
3
Martín-Cao-Romero, Carolina, Francisco Alonso Solís-Marín, Alfredo Laguarda-Figueras, and Blanca Estela Buitrón Sánchez. "Phataria unifascialis (Valvatida: Ophidiasteridae) from the Eastern Pacific: Redescription and skeletal morphology." Revista de Biología Tropical 65, no. 1-1 (December 8, 2017): 258. http://dx.doi.org/10.15517/rbt.v65i1-1.31694.
Full textAbstract:
The starfish Phataria unifascialis is widely distributed in the eastern cost of the Pacific Ocean, found on rocky bottoms, at depths between 0 and 50 m. The original description of P. unifascialis made by Gray in 1840 was brief and inaccurate in some important aspects, such as distribution area, plate arrangement and ambulacral spines. Here, we improve the description of P. unifascialis with SEM images and description of its mesodermal skeleton on the basis of a large sample. Rev. Biol. Trop. 65(Suppl. 1): S258-S271. Epub 2017 November 01.
4
Mauch, Michael, and Brian D. Taylor. "Gender, Race, and Travel Behavior: Analysis of Household-Serving Travel and Commuting in San Francisco Bay Area." Transportation Research Record: Journal of the Transportation Research Board 1607, no. 1 (January 1997): 147–53. http://dx.doi.org/10.3141/1607-20.
Full textAbstract:
Detailed trip diary data from a 1990 survey of San Francisco Bay Area residents were used to examine the effects of race/ethnicity on the differences in commuting and household-serving travel among men and women. With respect to travel behavioral differences between men and women, the findings suggest that women do more child chauffeuring and make more household-serving trips than men. This analysis further reveals that these gender differences in commuting behavior extend to household-serving travel and can vary significantly by race/ethnicity in addition to income and household structure. It was found, for example, that commute time differences are highest among whites (4.5 min) and lowest among Hispanics (1.8 min), whereas observed gender differences in average travel time for all trips do not vary much by race or ethnicity. Furthermore, the gender variation in child-serving trips was lowest among Asians and Pacific Islanders (women are 60 percent more likely to make such trips) and highest among whites (women are 223 percent more likely to make such trips). Finally, and in contrast to child-serving travel, women make about 75 percent more grocery trips than men, regardless of race/ethnicity. The analysis suggests, however, that much, although not all, of the racial/ethnic variation in the travel behavior of men and women is probably explained by factors—such as income, employment status, metropolitan location, and automobile availability—that tend to vary systematically by race ethnicity. In general, it was found that gender is a far more robust predictor of child-serving and grocery shopping trips than either race or ethnicity.
5
Lin, Hongyang, Keith R. Thompson, and Jianyu Hu. "A Frequency-Dependent Description of Propagating Sea Level Signals in the Kuroshio Extension Region." Journal of Physical Oceanography 44, no. 6 (May 28, 2014): 1614–35. http://dx.doi.org/10.1175/jpo-d-13-0185.1.
Full textAbstract:
Abstract Hilbert empirical orthogonal function analysis is used to provide a frequency-dependent description of observed sea level variability in the Kuroshio Extension region, 1993–2012 inclusive. The dominant high-frequency mode (periods between 140 and 350 days) describes signals that propagate westward with the largest amplitudes in the vicinity of the Shatsky Rise and Emperor Seamounts. Based on the close correspondence between the variance of the high-frequency variability and the underlying bathymetry, it is speculated that this mode is driven by jet–bathymetry interactions. The dominant low-frequency mode (periods longer than 350 days) is explained in terms of wind-forced, jet-trapped Rossby waves that propagate along the mean Kuroshio Extension jet. One of the most surprising findings of this study is that sea level changes north of the jet in the meander region anticipate changes south of the jet by about 3 yr. Based on correlations of observed sea level with the Pacific decadal oscillation, and western boundary transport variability estimated from the Global Ocean Reanalysis and Simulations (GLORYS), it is speculated that this anticipation is due to the differences in time taken for (i) Rossby waves to travel from the eastern North Pacific to the meander region and (ii) the much faster barotropic response of western boundary transport, and sea level north of the jet, to large-scale forcing by the wind stress curl.
6
CORSINI-FOKA, M., M. A. PANCUCCI-PAPADOPOULOU, G. KONDILATOS, and S. KALOGIROU. "Gonioinfradens paucidentatus (A. Milne Edwards, 1861) (Crustacea, Decapoda, Portunidae): a new alien crab in the Mediterranean Sea." Mediterranean Marine Science 11, no. 2 (November 11, 2010): 331. http://dx.doi.org/10.12681/mms.80.
Full textAbstract:
The first record for the Mediterranean Sea of the Red Sea/Indo-Pacific portunid Gonioinfradens paucidentatus (red swimming crab) is documented. A detailed description of the specimens collected at Rodos Island (southeastern Aegean Sea) is given, while possible introduction vectors of the species in the area are discussed.
7
Vannini, Phillip, Nanny Kim, Lisa Cooke, Giovanna Mascheroni, Jad Baaklini, Ekaterina Fen, Elisabeth Betz, et al. "Book Reviews." Transfers 3, no. 2 (June 1, 2013): 136–57. http://dx.doi.org/10.3167/trans.2013.030211.
Full textAbstract:
Tim Ingold, Being Alive: Essays on Movement, Knowledge and Description; Tim Ingold (ed.), Redrawing Anthropology: Materials, Movements, Lines; Tim Ingold and Jo Lee Vergunst (eds.), Ways of Walking: Ethnography and Practice on Foot Phillip VanniniTom Standage, A History of the World in 6 Glasses Nanny KimSimone Fullagar, Kevin W. Markwell, and Erica Wilson (eds.), Slow Tourism: Experiences and Mobilities Lisa CookeJennie Germann Molz, Travel Connections: Tourism, Technology and Togetherness in a Mobile World Giovanna MascheroniHazel Andrews and Les Roberts (eds.), Liminal Landscapes: Travel, Experience and Spaces In-between Jad BaakliniLes Roberts, Film, Mobility and Urban Space: A Cinematic Geography of Liverpool Ekaterina FenHelen Lee and Steve Tupai Francis (eds.), Migration and Transnationalism: Pacific Perspectives Elisabeth BetzDavid Pedersen, American Value: Migrants, Money and Meaning in El Salvador and the United States Federico HelfgottLeopoldina Fortunati, Raul Pertierra and Jane Vincent (eds.), Migration, Diaspora, and Information Technology in Global Societies Giuseppina PellegrinoDaniel Flückinger, Strassen für alle: Infrastrukturpolitik im Kanton Bern 1790-1850 Reiner RuppmannRichard Vahrenkamp, The Logistic Revolution: The Rise of Logistics in the Mass Consumption Society Alfred C. Mierzejewski
8
Kühne, Reinhart D., Karin Langbein-Euchner, Martin Hilliges, and Norbert Koch. "Evaluation of Compliance Rates and Travel Time Calculation for Automatic Alternative Route Guidance Systems on Freeways." Transportation Research Record: Journal of the Transportation Research Board 1554, no. 1 (January 1996): 153–61. http://dx.doi.org/10.1177/0361198196155400119.
Full textAbstract:
This study outlines the concept of extending an available simulation model for evaluation of freeway route guidance systems using the compliance rates of drivers with alternative route recommendations based on measurements from the freeway subnetwork near Munich, Germany. The system works with variable direction signs that automatically display routing instructions to prevent congestion on the main road. The effectiveness of the system is assessed by calculating the travel times with and without an alternative route guidance system in operation. The result is a decrease in individual travel times on the main road and overall travel time savings for all traffic participants of the system. The simulation indicates a high sensitivity of diverting portions of traffic that allows an exact validation. The diverted traffic affects not only travel time and the congested area but also the destinations, which permits the use of the compliance rate as an accurate fit parameter for exact description of traffic patterns from measurement data.
9
MALYUTINA, MARINA V. "Description of two new species of munnopsid isopods (Crustacea: Isopoda: Asellota) from manganese nodules area of the Clarion-Clipperton Fracture Zone, Pacific Ocean." Zootaxa 2783, no. 1 (March 4, 2011): 1. http://dx.doi.org/10.11646/zootaxa.2783.1.1.
Full textAbstract:
Two new species of deep sea asellotes of the family Munnopsidae, Rectisura slavai sp. nov. and Storthyngura yuzhmorgeo sp. nov. are described from the manganese nodules area in the Clarion-Clipperton Fracture Zone of the Pacific Ocean. The discovery of these new species allowed re-examination of the taxonomic position of two similar species, Storthyngura ? intermedia (Beddard, 1885) from the Northeastern Basin of the Pacific Ocean and Ilyarachna defecta Menzies & George, 1972 from the Peru-Chile Trench, eastern Pacific Ocean. The species are moved to the genera Rectisura Malyutina, 2003 and Storthyngura Vanhöffen, 1914, respectively. Additional composition and distribution of the species of the genera are presented.
10
Cardillo, Emanuele, and Alina Caddemi. "Insight on Electronic Travel Aids for Visually Impaired People: A Review on the Electromagnetic Technology." Electronics 8, no. 11 (November 4, 2019): 1281. http://dx.doi.org/10.3390/electronics8111281.
Full textAbstract:
This review deals with a comprehensive description of the available electromagnetic travel aids for visually impaired and blind people. This challenging task is considered as an outstanding research area due to the rapid growth in the number of people with visual impairments. For decades, different technologies have been employed for solving the crucial challenge of improving the mobility of visually impaired people, but a suitable solution has not yet been developed. Focusing this contribution on the electromagnetic technology, the state-of-the-art of available solutions is demonstrated. Electronic travel aids based on electromagnetic technology have been identified as an emerging technology due to their high level of achievable performance in terms of accuracy, flexibility, lightness, and cost-effectiveness.
11
Chen, Wanying, Jieying Na, and Dongsheng Zhang. "Description of three species of ophioplinthacids, including a new species, from a deep seamount in the Northwest Pacific Ocean." PeerJ 9 (July 2, 2021): e11566. http://dx.doi.org/10.7717/peerj.11566.
Full textAbstract:
Five specimens of brittle star were collected from a deep-sea seamount in the Northwest Pacific, and identified into three species. One which is new to science, Ophioplinthaca grandisquama n. sp., can be easily distinguished from its congeners by the distinctly elongated and stout tentacle scales, stout and long disc spines, capitate with typically elongate to flaring head bearing numerous distinct thorns, radial shields roughly triangular and contiguous distally. One specimen was identified as Ophioplinthaca semele (Clark, 1949), which had been reported in Hawaii seamounts, is a new record of this species in the Northwest Pacific. The remaining specimen was an unknown species of Ophioplinthaca, with some different characteristics from other species of Ophioplinthaca. However, we, herein, prefer not to attach a name to this specimen until more morphological characteristics are available. The finding of this new species and two new records further enriches the distribution of Ophioplinthaca in the seamount of Northwest Pacific, providing useful information for marine protection in the cobalt-rich area.
12
Giangrande, Adriana, Margherita Licciano, and Alberto Castelli. "The genus Echinofabricia (Annelida: Fabriciidae) in the Mediterranean Sea with the description of E. rousei sp. nov." Journal of the Marine Biological Association of the United Kingdom 93, no. 7 (April 15, 2013): 1773–76. http://dx.doi.org/10.1017/s0025315413000386.
Full textAbstract:
The new species Echinofabricia rousei is described for the Mediterranean Sea based on specimens collected along the Sardinia Coast (Porto Conte). The genus Echinofabricia is reported for the first time in the Mediterranean area. At present three species are described within the genus: E. goodhartzorum, described from the Caribbean, E. dubia, described from the East Pacific (Hawaii) and E. alata from Australia.
13
Nepeina, K. S., and V. A. An. "PAHUTE MESA TRAVEL TIMES AT KURIL–KAMCHATKA SEISMIC STATIONS." NNC RK Bulletin, no. 2 (June 23, 2022): 53–61. http://dx.doi.org/10.52676/1729-7885-2022-2-53-61.
Full textAbstract:
This research fulfills additional information about the lithosphere below Southeastern Asia and the northern Pacific. The area is interesting for researchers because of the Kuril–Kamchatka subducted lithosphere. The availability to study an underground structure is complicated, because of Pacific Ocean. The significance of this research concerns epicentral distances ~54°–70° or ~6000–7000 km. During the Cold War of the 20th century and the classification of information between the largest nuclear states the Soviet Union (USSR) and the United States of America (USA), data on the registration of nuclear explosions were not published, however, underground nuclear explosions (UNE) were recorded. Thanks to an employee of the laboratory 5-s of the Institute of Physics of the Earth named after O.Yu. Schmidt of the USSR Academy of Sciences Kh.D. Rubinstein is kept at the Institute for the Dynamics of Geospheres of the Russian Academy of Sciences named after Academician M.A. Sadovsky (IDG RAS). Only after 1985 reports from some seismic stations of the former USSR began to be published in the operational reports of the United Geophysical Survey of the Russian Academy of Sciences (GS RAS). As it has not been yet published anywhere, we collect them and obtain the travel times were by revising seismograms from the archives IDG RAS and GS RAS for five Kuril–Kamchatka seismic stations (Bering, Esso, Severo-Kurilsk, Kurilsk). The 48 Unites States UNE at Pahute Mesa (at Nevada Test Site) from 1968 to 1990 are used for travel time curve building. We measure P waves travel times (tp) on historical seismograms for the ray travel path between Pahute Mesa tests and Kuril–Kamchatka stations. The body-waves magnitudes (mb) vary from 5.3 to 6.5. We obtain arrivals for: 1 UNE at Bering station, 7 UNE at Esso station, 45 UNE at Petropavlovsk, 18 UNE at Severo-Kurilsk and 12 at Kurilsk. We build a travel time function using linear regression algorithm as tp=k·Δ°+b, where Δ° is the epicentral distance, k and b are arbitrary constants. We show that travel time deviations, associated with nonlinearity of the Earth. We estimate the effective velocities of P waves for the Pahute Mesa – Kuril–Kamchatka travel path as coefficient k in the linear equation. Effective velocity is equal to 7.5 km/s.
14
Schweigert, J. F. "Multivariate Description of Pacific Herring (Clupea harengus pallasi) Stocks from Size and Age Information." Canadian Journal of Fisheries and Aquatic Sciences 48, no. 12 (December 1, 1991): 2365–76. http://dx.doi.org/10.1139/f91-277.
Full textAbstract:
Fisheries management must trade off biological conciseness with institutional and practical constraints, which may preclude separate management of all genetic stock units but should ensure long-term survival of such components in each area. The technique described here, while unable to explicitly identify genetic differences, is applicable to other species and would be particularly valuable for preliminary studies where limited resources preclude the use of expensive and analytically more complex techniques such as morphometric and meristic or electrophoretic analyses which are more suitable for that task. The method developed in this study involves the application of discriminant function and canonical variates analysis to information on size and age structure of Pacific herring (Clupea harengus pallasi) from samples representing the seven major migratory populations and other spawning aggregations in six geographical regions of coastal British Columbia. Results of the analysis quantify the separation of stocks of herring between geographical regions, and at a finer spatial scale, within all regions. Generally, one or more migratory stocks occurred together with minor stocks in each geographical region.
15
Kattel, Achut Raj. "Mobility in Dhakal’s Seti Pani Kali Pani." Mindscape: A Journal of English & Cultural Studies 2, no. 1 (December 31, 2023): 19–28. http://dx.doi.org/10.3126/mjecs.v2i1.61676.
Full textAbstract:
This research focuses in the area of niyatra, a Nepali term to denote a travel writing with the writer’s personal feelings and experiences. Prateek Dhakal’s Seti Pani Kali Pani picturizes many distant villages and hillsides of western Nepal and Nainital, India. This research is helpful to introduce the local area into the international arena and Nepali niyatra theory and literature in global context. It adopts Balkrishna Pokhrel, Nirmohi Byaas and Jaya Chhangchha’s theory on niyatra as research approach. The research also borrows concepts of travel writing proposed by some other western theorists like Carl Thomson and Mary Baine Campbell. For them, mobility is a key point of travel writing in general and niyatra literature in particular. This research addresses the issue how the theme of mobility is dominating in the text. The major objective of the research is to point out the movement from the beginning to the end of the text. The findings present many evidences of movement in Dhakal’s Seti Pani Kali Pani. To show the mobility, the description of landscape and places, society and culture and events and lifestyle in the text is analyzed. The research concludes that Dhakal’s Seti Pani kali Pani has the theme of mobility. This text has to be studied further by using another theme of Niyatra that is depiction of local.
16
GALEA, HORIA R. "Second records and redescriptions of two rare thecate hydroids (Cnidaria: Hydrozoa) from the southwestern Pacific." Zootaxa 5082, no. 4 (December 20, 2021): 373–83. http://dx.doi.org/10.11646/zootaxa.5082.4.5.
Full textAbstract:
Two thecate hydroids, Carpocladus fertilis Vervoort & Watson, 2003 (family Aglaopheniidae Marktanner-Turneretscher, 1890) and Gonaxia constricta (Totton, 1930) (family Gonaxiidae Maggioni, in Galea & Maggioni, 2021), are recorded for the first time from off New Caledonia, thus outside their original area of distribution in New Zealand waters. Specimens of both sexes of C. fertilis occur in the present collection, allowing the first description of its so far unknown female gonothecae. The trophosome of G. constricta, the only known to date, is thoroughly redescribed, pending the discovery of its gonothecae.
17
PFEILER, EDWARD, ALBERT M. VAN DER HEIDEN, RYAN S. RUBOYIANES, and TOM WATTS. "Albula gilberti, a new species of bonefish (Albuliformes: Albulidae) from the eastern Pacific, and a description of adults of the parapatric A. esuncula." Zootaxa 3088, no. 1 (November 2, 2011): 1. http://dx.doi.org/10.11646/zootaxa.3088.1.1.
Full textAbstract:
A new species of bonefish (Albuliformes: Albulidae: Albulinae) from the eastern Pacific Ocean, Albula gilberti, is described. Previously referred to as Albula sp. A, A. gilberti is distributed throughout the Gulf of California, Mexico to the coastal waters of California, USA. Presently, it can be distinguished from its closest relative, A. esuncula (= Albula sp. C) from the tropical eastern Pacific, solely by differences in mitochondrial DNA (cytochrome b) gene sequences. No diagnostic external morphological characters have yet been found that can reliably separate the two distinct genetic lineages although some differences in placement of pelvic-fin tip relative to vent may exist. Differences detected in counts of meristic characters should be tested in larger series of specimens, especially of A. esuncula. Available evidence also suggests that A. gilberti and A. esuncula show a parapatric distribution, with an area of sympatry in the southern Gulf of California. We also provide a description of adults of A. esuncula (the original description was based solely on two larvae), review the current nomenclature of the subfamily Albulinae, and discuss the role and justification of using molecular data for diagnosing cryptic species.
18
Samimi-Namin, Kaveh, Tito Monteiro da Cruz Lotufo, Bert W. Hoeksema, Sarah M. Tweedt, Christopher Meyer, and Gustav Paulay. "Unique Aggregations of a Large Undescribed Solitary Tunicate in the Arabian Sea." Diversity 16, no. 4 (April 6, 2024): 221. http://dx.doi.org/10.3390/d16040221.
Full textAbstract:
We document aggregations of an undescribed benthic solitary tunicate of the family Pyuridae from the Arabian Sea. This new genus was found forming dense thickets in shallow rocky substrates around Masirah Island and the Dhofar area in Oman. Such aggregations of tunicates have not been reported before from coral reefs in the Indo-West Pacific region and the Atlantic. This observation contributes to our understanding of the ecology and biogeography of ascidians, setting the stage for a comprehensive species description and in-depth analysis of this species.
19
Parapar, Julio, Juan Moreira, and Daniel Martin. "On the diversity of the SE Indo-Pacific species ofTerebellides(Annelida; Trichobranchidae), with the description of a new species." PeerJ 4 (August 16, 2016): e2313. http://dx.doi.org/10.7717/peerj.2313.
Full textAbstract:
The study of material collected during routine monitoring surveys dealing with oil extraction and aquaculture in waters off Myanmar (North Andaman Sea) and in the Gulf of Thailand, respectively, allowed us to analyse the taxonomy and diversity of the polychaete genusTerebellides(Annelida). Three species were found, namelyTerebellidescf.woolawa,Terebellides hutchingsaespec. nov.(a new species fully described and illustrated), andTerebellidessp. (likely a new species, but with only one available specimen). The new species is characterised by the combination of some branchial (number, fusion and relative length of lobes and papillation of lamellae), and thoracic (lateral lobes and relative length of notopodia) characters and is compared with all species described or reported in the SW Indo-Pacific area, as well as with those sharing similar morphological characteristics all around the world. The taxonomic relevance of the relative length of branchial lobes and different types of ciliature in branchial lamellae for species discrimination in the genus is discussed. A key to allTerebellidesspecies described in SE Indo-Pacific waters is presented.
20
Wu, Hao, Lingbo Liu, Yang Yu, Zhenghong Peng, Hongzan Jiao, and Qiang Niu. "An Agent-based Model Simulation of Human Mobility Based on Mobile Phone Data: How Commuting Relates to Congestion." ISPRS International Journal of Geo-Information 8, no. 7 (July 23, 2019): 313. http://dx.doi.org/10.3390/ijgi8070313.
Full textAbstract:
The commute of residents in a big city often brings tidal traffic pressure or congestions. Understanding the causes behind this phenomenon is of great significance for urban space optimization. Various spatial big data make the fine description of urban residents’ travel behaviors possible, and bring new approaches to related studies. The present study focuses on two aspects: one is to obtain relatively accurate features of commuting behaviors by using mobile phone data, and the other is to simulate commuting behaviors of residents through the agent-based model and inducing backward the causes of congestion. Taking the Baishazhou area of Wuhan, a local area of a mega city in China, as a case study, we simulated the travel behaviors of commuters: the spatial context of the model is set up using the existing urban road network and by dividing the area into space units. Then, using the mobile phone call detail records of a month, statistics of residents’ travel during the four time slots in working day mornings are acquired and then used to generate the Origin-Destination matrix of travels at different time slots, and the data are imported into the model for simulation. Under the preset rules of congestion, the agent-based model can effectively simulate the traffic conditions of each traffic intersection, and can induce backward the causes of traffic congestion using the simulation results and the Origin-Destination matrix. Finally, the model is used for the evaluation of road network optimization, which shows evident effects of the optimizing measures adopted in relieving congestion, and thus also proves the value of this method in urban studies.
21
Roddis, S. M., and A. J. Richardson. "Construction of Daytime Activity Profiles from Household Travel Survey Data." Transportation Research Record: Journal of the Transportation Research Board 1625, no. 1 (January 1998): 102–8. http://dx.doi.org/10.3141/1625-13.
Full textAbstract:
The perception of population as the number of people living in a region is entrenched firmly in the minds of many urban planners and transport professionals. In the past, the use of such a residential or home-based description of population would have suited most local area planning and transportation modeling needs. In light of this, the use of a daytime distribution of population to locate services and facilities forms a radical departure from conventional practice. However, there is a clear need to consider the location of people across the day in planning for the provision of facilities that will be used during the day. Data from the Victorian Activity and Travel Survey were used to develop methods by which daytime population behavior can be examined. Specifically, two measures were developed. A population profile provides an estimate of population within any region at any time of the day. A visitation curve supplements the population profile by monitoring the number of people using a region across the day. Further disaggregation of the population to reveal behavioral and demographic characteristics constitutes an important component of the methodology.
22
LUBINEVSKY, HADAS, MOSHE TOM, and GRAHAM BIRD. "Tanaidacea (Crustacea: Malacostraca: Peracarida) from soft-sediment shelf habitats off the Mediterranean coast of Israel (Levant Sea) –taxonomy, faunistics and ecological aspects." Mediterranean Marine Science 23, no. 3 (June 23, 2022): 561–98. http://dx.doi.org/10.12681/mms.27699.
Full textAbstract:
A 74-year zoogeographic and faunistic description of the shelf soft substrate peracaridan Tanaidacea along the Israeli coast, the eastern-most part of the Mediterranean, is provided here. The presence of three apseudomorphan and ten tanaidomorphanfamilies, with 28 species, is recorded, of which four are reported from the region for the first time, and five are new species in the genera Araphura, Nippognathiopsis, Paratyphlotanais, and Typhlotanais. In addition, a new genus is established for Akanthophoreus nanopsenos, Leptochelia tanykeraia is redescribed, and the presence of Chondrochelia savignyi is demonstrated. The tanaid shelf community essentially belongs to the Mediterranean zoogeographic province but has several Mediterranean-Atlantic species. Lessepsian (Erythrean) migration is currently indicated by the presence of one species, the Indo-Pacific kalliapseudid Cristapseudes omercooperi, which has established a population in the studied area. Its settlement strategy is demonstrated and discussed. The poor Indo-Pacific representation is possibly due to the lack of planktonic larvae in this peracarid group, reducing the chance of dispersion or transport from the Indo-Pacific realm via the Suez Canal.
23
Nechvoloda, E. A., E. B. Koreeva, and S. A. Gryaznov. "DEVELOPMENT OF A MATHEMATICAL MODEL OF EQUILIBRIUM INTERACTION OF PLAYERS OF THE RUSSIAN AIR TRAVEL MARKET AS AGENTS OF A REFLEXIVE GAME." Scientific Review Theory and Practice 11, no. 5 (2021): 1410–17. http://dx.doi.org/10.35679/2226-0226-2021-11-5-1410-1417.
Full textAbstract:
Due to the closure of borders, the greatest blow fell on international air travel, but local, intercity flights also suffered due to measures to prevent the spread of COVID-19 infection. In order to find the most effective way to regulate prices for the restoration of the air travel market in the Russian Federation, airlines can use the applications of game theory, thanks to which players will be able to think through a balanced strategy of a cooperative game. The subject of the study of game theory is the mathematical analysis of situations in which the interests of several players may not coincide. At the same time, a formalized description of the described situations is presented in the form of a mathematical model called a game. When describing the game, some parameters are set, awareness of which is a key factor in the success of the agent's game. These parameters include: the number of players – the set of agents involved; the preferences of players; the area of permissible actions in the game; the awareness of players; the order (sequence) of moves, etc. The basic concepts applicable in the analysis and optimization of the air travel market are considered. Within the framework of game theory, the air travel market of the Russian segment of the world market is analyzed and an assessment of the classical situation on the market, the moves of agents and their effectiveness is given. A mathematical model of the choice of strategy by players in the classical situation on the air travel market of the Russian Federation is presented.
24
PRICE, W. WAYNE. "Mysidopsis jenseni n. sp. from the Pacific coast of Washington, with first description of female M. intii Holmquist, 1957 (Crustacea: Mysida: Mysidae)." Zootaxa 5399, no. 4 (January 15, 2024): 397–417. http://dx.doi.org/10.11646/zootaxa.5399.4.6.
Full textAbstract:
Mysidopsis jenseni n. sp. is described from the Puget Sound area, Washington, USA from sand/rocky bottoms in depths of 8 to 15 m. This new species increases the number of American Pacific species of Mysidopsis to eight. Based on a collection of M. intii Holmquist, 1957 from coastal waters of Chile, a supplementary description of the male is presented and the female is described for the first time. The presence of a mid-dorsal lappet near the posterior margin of the carapace of females only distinguishes the new species from all other Mysidopsis species except M. velifera Brattegard, 1973 from the Caribbean. M. jenseni is further separated from its American Pacific congeners by the following combination of characters: antennal scale 3–4 times as long as wide with a rounded apex and distal suture; uropodal endopod with 8–9 spiniform setae along ventromedial margin; telson with 46–54 spiniform setae along all margins. The presence of lobe-like protuberances on the basis and dactylus of thoracic endopods 3–8 was documented for the new species, M. intii and other species of Mysidopsis as well as species belonging to the other four genera within the Tribe Mysidopsini. A key to the species of Mysidopsis of the Pacific coasts of the Americas is given.
25
ANKER, ARTHUR. "The mud-shrimp genus Axianassa Schmitt, 1924 (Crustacea, Decapoda, Axianassidae) in the Indo-West Pacific, with description of a new species from French Polynesia." Zootaxa 2557, no. 1 (August 3, 2010): 49. http://dx.doi.org/10.11646/zootaxa.2557.1.5.
Full textAbstract:
A new species of the mud-shrimp genus Axianassa Schmitt, 1924 is described based on four specimens collected in a muddy near-shore area inside the Moorea lagoon, Society Islands, French Polynesia. Axianassa ngochoae n. sp. constitutes the first Indo-West Pacific record of this genus, previously known only from the western and eastern coasts of the Americas. A key to all species of Axianassa is provided.
26
Nakagun, Shotaro, Laetitia I. Smoll, Takayuki Sato, Cynthia A. A. Layusa, and Jo Marie V. Acebes. "Interchange of humpback whales (Megaptera novaeangliae) between northern Philippines and Ogasawara, Japan, has implications for conservation." Pacific Conservation Biology 26, no. 4 (2020): 378. http://dx.doi.org/10.1071/pc19003.
Full textAbstract:
Humpback whales (Megaptera novaeangliae) in the western North Pacific breed in the Philippines and Japan, where there is relatively little scientific data available, leading to uncertainty about their population status and structure. This study investigates links between humpback whale populations in northern Philippines and Ogasawara, Japan, through a comparison of the most recent fluke identification catalogues. The Philippines catalogue (1999–2016) included 234 individuals, and the Ogasawara catalogue (1987–2014), 1389 individuals. The number of matched individuals was 86 (including 14 known females and 40 known males), corresponding to 36.8% of the Philippines and 6.2% of the Ogasawara catalogues. The findings included four within-season matches, with travel times as short as 25 days. The results suggest that a considerable portion of whales utilising Philippine waters pass through and also utilise the Ogasawara region, but the majority of whales found off Ogasawara either stay in that location, move to different breeding grounds, or remain out of the sampling area. Nevertheless, in light of the high site fidelity of individuals in the Philippines and Ogasawara area, as well as constant evidence of breeding activities, these regions are of importance to the lesser known western North Pacific subpopulation. Humpback whales migrating to this part of the world are estimated to be in relatively low abundance, therefore continued conservation attention is needed.
27
Ashrafi, Hossein, J. Antonio Baeza, and Zdeněk Ďuriš. "The caridean shrimps of the genus Lysmata Risso, 1816 (Decapoda: Lysmatidae) from Madagascar collected during the Atimo-Vatae expedition: a new species and two new records." European Journal of Taxonomy 774 (October 12, 2021): 155–77. http://dx.doi.org/10.5852/ejt.2021.774.1535.
Full textAbstract:
The present study focuses on shrimps belonging to the genus Lysmata Risso, 1816, collected from Madagascar during the Atimo Vatae expedition carried out in 2010. Lysmata malagasy sp. nov. is a new species belonging to the clade named “long accessory ramous” or “cosmopolitan” in previous phylogenetic studies. The new species can be distinguished from the only two other representatives of this group in the Indo-west Pacific, L. ternatensis De Man, 1902, and L. trisetacea (Heller, 1861), by the accessory ramus of the lateral antennular flagellum consisting of four elongated articles. Lysmata lipkei Okuno & Fiedler, 2010 is reported here from Madagascar with a remarkable extension of its known range after its original description from Japan. This species has also been reported from Singapore and, as alien species, from Brazil. Lastly, L. kuekenthali De Man, 1902 known from numerous localities in the Indo-West Pacific biogeographic area, is reported for the first time from Madagascar. Results of the present morphological and molecular analyses suggest that L. hochi Baeza & Anker, 2008 from the Caribbean Sea is a synonym of the Indo-West Pacific L. kuekenthali, and thus the latter species is alien in the western Atlantic.
28
Bi, Si-Zhao, Zhao-Hui Peng, Guang-Xu Wang, Zhi-Min Xie, and Ling-Shan Zhang. "Characteristics of long-range sound propagation in western Pacific." Acta Physica Sinica 71, no. 21 (2022): 214302. http://dx.doi.org/10.7498/aps.71.20220566.
Full textAbstract:
Acoustic signals can travel thousands of kilometers in seawater, and the characteristics of long-range sound propagation are different from short range propagation. This paper is based on a long-range underwater acoustic experimental data obtained from the western Pacific Ocean, where the farthest propagation distance is nearly 2000 km. The ocean environment information and vertical line array information are carefully processed. We analyze the attenuation of long-distance acoustic propagation in seawater and multi-path arrival structure characteristics under the complete acoustic channel environment of the ocean. In terms of the attenuation law of long-distance propagation energy, with the increase of propagation distance, the effect of seawater absorption on the attenuation of sound energy becomes prominent, and the selection of absorption coefficient is very important for the accurate prediction of sound field energy. Absorption in seawater of low frequency signals is small, and the transmission loss of acoustic signal with 100 Hz center frequency increases only by about 6dB when the propagation distance increases from 1000 km to 2000 km. In terms of multi-path arrival structure characteristics of deep-sea acoustic channel for long-distance sound propagation, the thermocline sound velocity profile in the experimental sea area has a higher sound speed, making the number of eigenrays reaching the receiving point more and the multi-path arrival structure more complex. The arrival structure formed by sea surface reflected eigenrays is at the earlier position of the overall arrival structure and has relatively strong energy. Owing to the influence of subtropical water over the northwest Pacific Ocean on the sound speed profile, the time of some eigenrays arriving at the receiving point is earlier, and the length of multi-way arrival structure on the time axis is prolonged.
29
Kowalska, Klaudyna. "Controversial Travels of Medical Tourism." Folia Turistica 40 (September 30, 2016): 71–84. http://dx.doi.org/10.5604/01.3001.0010.4019.
Full textAbstract:
Purpose. Description - based on the review of Polish and English literature - of some controversial categories of travel included in medical tourism and known as circumvention tourism. The following types of “tourism” were analyzed: abortion, fertility, suicide, FGM (female genital mutilation) as well as transplant and surgical reassignment surgery tourism. We also undertook an attempt to outline the profile and the motives of participants of such trips. Method. A critical literature review. Findings. Circumvention tourism is a category of medical tourism and includes the abroad travel of patients (medical tourists) for services that are illegal in the country of the medical tourist. The most important factors of circumvention tourism development are: legal regulations, advances in transport and ICT, the development of medicine and changing consumer lifestyles. The participants are usually from developed countries and have a stable financial situation. On the other hand, the profile differs according to the type of travel (subcategory) in which they participate. The main motivations of tourists are: circumvention of legal restrictions, privacy, long waiting lists and fear of stigmatization. Practical implications. The analysis can determine further research regarding circumvention tourism. Originality. The analysis concerns circumvention tourism, which despite an increase in research on the phenomenon of medical tourism is still unexplored and a difficultly assessed area. Type of paper. A review article.
30
Vera, Emilio E., and John C. Mutter. "Crustal structure in the ROSE area of the East Pacific Rise: One-dimensional travel time inversion of sonobuoys and expanded spread profiles." Journal of Geophysical Research 93, B6 (1988): 6635. http://dx.doi.org/10.1029/jb093ib06p06635.
Full text
31
SHIBUKAWA, KOICHI, TOSHIYUKI SUZUKI, and HIROSHI SENOU. "Review of the shrimp-associated goby genus Lotilia (Actinopterygii: Perciformes: Gobiidae), with description of a new species from the West Pacific." Zootaxa 3362, no. 1 (July 2, 2012): 54. http://dx.doi.org/10.11646/zootaxa.3362.1.3.
Full textAbstract:
The Indo-West Pacific gobiid fish genus Lotilia, symbiotically associated with alpheid shrimps, is reviewed. The genus com-prises two species, viz. L. graciliosa Klausewitz, 1960 and L. klausewitzi sp. nov., the latter of which is described herein basedon 11 specimens (including seven type specimens) from Japan, Australia and the Bismark Archipelago. Lotilia klausewitzi, pre-viously misidentified as L. graciliosa in the West Pacific, is readily distinguished from L. graciliosa by having the followingfeatures, in addition to some minor differences in the sensory-papillae configuration on the cheek: cephalic sensory canals andassociated pores present (vs. absent in L. graciliosa); 7+6=13 branched caudal-fin rays (vs. 7+7=14); pale area on dorsum fromsnout to dorsoanterior part of body relatively long, extending posteriorly to, or beyond, base of fifth spine of first dorsal fin (vs.extending posteriorly to around base of third or fourth spine); a faint, relatively small dark grayish brown spot at center of firstdorsal fin behind third or fourth spine, and its paler margin usually absent or obscure (vs. conspicuous ocellated black spot withvivid pale margin at center of first dorsal fin, extending anteriorly beyond third spine); and a submarginal row of black spots oncaudal fin (vs. absent). Geographic records based on the specimens examined and underwater photographs indicate that L. gra-ciliosa appears to be restricted to the Red Sea and its adjacent areas, whereas L. klausewitzi is widely found in the West Pacific. Lotilia is re-diagnosed, and L. graciliosa is re-described based on five specimens including the holotype.
32
Melasari, Jihan, Purnawan, Yosritzal, and Yossyafra. "Accessibility Towards West Sumatra Tourism Area." IOP Conference Series: Earth and Environmental Science 1173, no. 1 (May 1, 2023): 012049. http://dx.doi.org/10.1088/1755-1315/1173/1/012049.
Full textAbstract:
Abstract Accessibility was identified as the main factor driving tourist travel. The transportation sector is one of the strategic elements in tourism. Transportation in tourism is a means to achieve tourist destinations and also a means of movement in tourist destinations. Transportation is one of the important indicators in the development of tourist destinations and the selection of destinations by tourists. West Sumatra Province is one of the provinces in Indonesia which is rich in tourist attractions and is also one of the tourist destinations that is quite taken into account not only at the national level but also at the international level. West Sumatra has been designated as one of the main national tourist destinations. This research identifies accessibility to existing tourist areas in West Sumatra and analyzes areas that have the highest and lowest accessibility and explains the existing condition of the availability of public transportation to provide services in terms of providing good accessibility to the tourist zone. This research uses a quantitative approach method to present numerical data through the normal distribution method to make each accessibility parameter into three classifications namely low, medium, and high, and also uses a qualitative approach that aims to investigate, describe and explain the existing conditions of transportation facilities to tourist zone which is the object of research using primary data. Through a qualitative approach, a detailed description of the condition of the availability of routes and public transportation will be produced which will be analyzed based on the results of mapping in the study area.
33
VAN DE VIJVER, BART, ADRIENNE MERTENS, and HERMAN VAN DAM. "Olifantiella elisabethiana, a new raphid diatom species (Bacillariophyta) observed in the Port of Antwerp (Belgium)." Phytotaxa 261, no. 3 (May 20, 2016): 251. http://dx.doi.org/10.11646/phytotaxa.261.3.4.
Full textAbstract:
During an extensive analysis of the diatom flora of the Port of Antwerp (Belgium) in 2008, an unknown naviculoid taxon was observed. Detailed morphological investigations using light, scanning electron and transmission electron microscopy resulted in the description of this unknown taxon as Olifantiella elisabethiana Van de Vijver sp. nov. This new small-celled, biraphid species is characterized in having a typical internal process named buciniportula, opening externally by a pore or slit, unseriate striae composed of one single transapically elongated areola and a siliceous hymenous velum extending internally from the valve mantle to halfway the valve margin and the axial area. The morphological observations allowed to precise the characterization of the genus Olifantiella. A modification of the original description is proposed with regard to the internal structure. The presence of this Olifantiella species in the northern hemisphere is briefly discussed as all other known taxa of this genus have only been found in the tropical coastal waters of the Indian and Pacific Ocean.
34
GELDER, STUART R. "A reevaluation and redescription of the branchiobdellidan Sathodrilus tetrodonta (Pierantoni, 1906) new comb. (Annelida: Clitellata)." Zootaxa 5403, no. 1 (January 18, 2024): 130–40. http://dx.doi.org/10.11646/zootaxa.5403.1.9.
Full textAbstract:
The questionable status of Branchiobdella tetrodonta Pierantoni, 1906 is resolved and the species is transferred to the correct genus. The original description was made from specimens removed from signal crayfish collected in California, USA, unfortunately, Pierantoni (1906c) did not designate any type specimens nor where the preparations were deposited; they are now presumed lost. Holt (1967) believed B. tetrodonta possessed unique penial hooks and a chitinous sheath which was due to his mistranslation of the original Italian description. As a result, Sathodrilus attenuatus Holt, 1981, was described even though specimens came from the same area and host and possessed very similar jaw characteristics to B. tetrodonta. In addition, the jaw characteristics of both endemic species are unique in the Pacific Ocean drainage of the USA. A reassessment of the literature and re-examination of Holt’s type specimens has resulted in the species name becoming a new combination, Sathodrilus tetrodonta (Pierantoni, 1906), with Sathodrilus attenuatus Holt, 1981, as its junior synonym.
35
Muhammad Baqir Ghaidan Al-Taie, Noor. "Voyages of Explorations: A Comparison of the First Eastern Travel to South America by Elias Al-Musili with Walter Raleigh’s one." Journal of Education College Wasit University 48, no. 3 (August 1, 2022): 525–38. http://dx.doi.org/10.31185/eduj.vol48.iss3.3003.
Full textAbstract:
European travelers in the 15th and 16th century begin to embark on series of explorations of the New World. This period is well known as the “Age of exploration” where many figures such as Ferdinand Magellan, explore the Atlantic road and the Pacific Ocean. Not only the American literature if full of such explorations, but also the Arabic one as well. By the year 1905, Antun Rabbat, a well-known Jesuit scholar of the late nineteenth and early twentieth century, discovers a manuscript of the first eastern travel to Americas, in the library of the Suryan bishopric in Aleppo. He publishes the first manuscript in Al Masriq journal (Vol.8, nos.18-24 [1905] under the heading (The most an ancient voyage of an oriental to America (1668-83) (Farah XI). The manuscript is translated under the title “An Arabs Journey to Colonial Spanish America” by Caesar E. Farah, a professor in the Middle Eastern and Islamic History at the University of Minnesota. This book shows that, since ancient times, Easterners always have passion and love for travel, however, no one before the Rev. Elias, the Chaldean Christian priest from Baghdad, ventures into the Americas and gives his observations of the cities, villages, provinces and native people and could travel freely to the Spanish Empire in 1675-83. In this regard, i will compare the Eastern journey to south America, Peru, and show Elias’s perspective of the native people, with the Western Journey of Sir Walter Raleigh to Peru. Though there is a wide time gap between the two Journeys, however, my main point is to draw a comparison between the Eastern perspective and the Western one of such journey. Both visited Peru, however they share different points of view. Simply put, I will focus on the purpose of such journey, the description of the prevalent religion among the natives, their habits and the search for the mines of gold.
36
MARKHASEVA, ELENA L., and JASMIN RENZ. "Description of three new species of Bradyidius (Copepoda: Calanoida), the new aetideids from the deep Pacific Ocean, with notes on the genera Bradyidius and Aetideopsis." Zootaxa 5004, no. 2 (July 20, 2021): 343–69. http://dx.doi.org/10.11646/zootaxa.5004.2.5.
Full textAbstract:
Three new aetideid species, Bradyidius abyssalis sp. nov., Bradyidius parabyssalis sp. nov., and B. kurilokamchaticus sp. nov. are described from female specimens collected near the seafloor in the abyss of the Pacific and Atlantic Oceans. Specimens of Bradyidius parabyssalis sp. nov. were obtained in both the Atlantic and Pacific Oceans (Argentine Basin, area of the Meteor Seamount and the Kurile-Kamchatka Trench). Bradyidius abyssalis sp. nov. was found only in the Atlantic Ocean, (Brazil and Guinea Basins and area of the Meteor Seamount) and Bradyidius kurilokamchaticus sp. nov. was recorded from the Kurile-Kamchatka Trench of the Pacific Ocean. Three new herein described Bradyidius species constitute the first documented records of the genus from the abyss of the World Ocean. In addition, three Bradyidius species from the Weddell Sea, the Atlantic Ocean and the Kurile-Kamchatka Trench, are briefly described without biological names due to their bad condition. Bradyidius parabyssalis sp. nov. and B. abyssalis sp. nov. are distinguished from all known congeners by the presence of 3 setae at the basis of the mandible and morphological details of the prosome posterior corners and P1. They show close resemblance to each other but differ in body size, rostrum structure, P4 coxa armament and length of the setae of the antennule ancestral segment I and the mandible basis. Bradyidius kurilokamchaticus sp. nov. shares with B. curtus Markhaseva, 1993, B. pacificus (Brodsky, 1950) and B. arnoldi Fleminger, 1957 a rostrum with non-divergent or parallel points, but differs from these species in the size, the well developed lateral spine on exopod segment 1, in the number of setae at the antenna exopod segment 1 and some morphological details of the prosome posterior corners. Characters that define the genus Bradyidius Giesbrecht, 1897 from Aetideopsis Sars, 1903, i.e. the shape of lateral spines of P1exopod segments 1 and 2; the endopod of P2 segmentation and the setation of the antennule ancestral segments XII, XV and XVII are discussed.
37
Sviridov, V. V., D. V. Kotsyuk, and E. V. Podorozhnyuk. "Photogrammetric counts of pacific salmon by means of unmanned aerial vehicles of consumer grade." Izvestiya TINRO 202, no. 2 (June 30, 2022): 429–49. http://dx.doi.org/10.26428/1606-9919-2022-202-429-449.
Full textAbstract:
Methodology for photogrammetric counting of pacific salmon by means of unmanned aerial vehicles (UAVs) of consumer grade is developed. The spawners and spawning redds are counted using photogrammetric processing of aerial images taken by UAVs at monitoring sites. The photogrammetric products (orthomosaics and digital elevation models — DEMs) are analyzed in geographic information systems (GIS). The estimations of relative abundance for the monitoring sites are extrapolated to entire area of potential spawning grounds. There is shown for the first time that DEMs of water channels allow to visualize and count the redds. Detailed description of methodology is presented, including the survey planning and implementation, data processing, fish abundance estimation, data analysis and visualization, and web-publication. Recommendations for choosing UAV, its accessories and software for flight, photogrammetry and GIS are provided. This approach will facilitate objectivity of salmon counts and provide gradual transition from subjective aerovisual methods towards proven and verified digital basis of fish abundance assessment.
38
Jaramillo, Karla B., Báslavi Cóndor-Luján, Belinda Longakit, Jenny Rodriguez, Olivier P. Thomas, Grace McCormack, and Eduardo Hajdu. "New records of Demospongiae (Porifera) from Reserva Marina El Pelado (Santa Elena, Ecuador), with description of Tedania (Tedania) ecuadoriensis sp. nov." ZooKeys 1011 (January 19, 2021): 101–20. http://dx.doi.org/10.3897/zookeys.1011.54485.
Full textAbstract:
The first taxonomic descriptions of the sponge diversity at El Pelado Marine Protected Area in the province of Santa Elena, Ecuador is reported. Tedania (Tedania) ecuadoriensis Jaramillo & Hajdu, sp. nov. is described from its shallow waters. In addition, Callyspongia (Callyspongia) aff. californica (sensuCruz-Barraza and Carballo 2008; nonsensuDickinson 1945) and Cliona aff. euryphylle are reported for the first time. The former species is likely distributed over 4,000 km along the Tropical Eastern Pacific, whereas the latter might be an example of a trans-isthmian lineage. An amended diagnosis for Callyspongia (Callyspongia) and an updated identification key for the subgenera of Callyspongia are provided.
39
Nerurkar, Sayali, Gaurav G. Shimpi, and Deepak Apte. "First record of Nassarius fuscus (Hombron & Jacquinot, 1848) from the west coast of India, with the description of its sister species Nassarius arewarensis n. sp. (Buccinoidea: Nassariidae)." Journal of Molluscan Studies 86, no. 3 (June 23, 2020): 240–48. http://dx.doi.org/10.1093/mollus/eyaa010.
Full textAbstract:
ABSTRACT Nassarius Duméril, 1805 is the most diverse genus within the nassariid subfamily Nassariinae. Nonetheless, information on members of this genus from the Indian subcontinent, a major ecoregion of the western Indo-Pacific, is scarce. Here, we report Nassarius fuscus (Hombron & Jacquinot, 1848) for the first time from India and provide information on its morphology and ecology. This species has previously been recorded only from the central Indo-Pacific. We also describe a new species of Nassarius, N. arewarensis n. sp., which on the basis of our data is sister to N. fuscus. Both species were found within heterogeneous strands of mangroves in the shallow intertidal area of the Aare-Ware Creek, Ratnagiri, Maharashtra, India. Morphological comparisons as well as species delimitation analyses using the universal cytochrome c oxidase subunit I barcode indicated that these species are distinct. The present study enhances our understanding of the species composition and the diversity of Nassarius in India.
40
Lee, Yun-Young, and Richard Grotjahn. "California Central Valley Summer Heat Waves Form Two Ways*." Journal of Climate 29, no. 3 (February 1, 2016): 1201–17. http://dx.doi.org/10.1175/jcli-d-15-0270.1.
Full textAbstract:
Abstract California Central Valley (CCV) heat waves are grouped into two types based on the temporal and spatial evolution of the large-scale meteorological patterns (LSMPs) prior to onset. The k-means clustering of key features in the anomalous temperature and zonal wind identifies the two groups. Composite analyses show different evolution prior to developing a similar ridge–trough–ridge pattern spanning the North Pacific at the onset of CCV hot spells. Backward trajectories show adiabatic heating of air enhanced by anomalous sinking plus horizontal advection as the main mechanisms to create hot lower-tropospheric air just off the Northern California coast, although the paths differ between clusters. The first cluster develops the ridge at the west coast on the day before onset, consistent with wave activity flux traveling across the North Pacific. Air parcels that arrive at the maximum temperature anomaly (just off the Northern California coast) tend to travel a long distance across the Pacific from the west. The second cluster has the ridge in place for several days prior to extreme CCV heat, but this ridge is located farther north, with heat anomaly over the northwestern United States. This ridge expands south as air parcels at midtropospheric levels descend from the northwest while lower-level parcels over land tend to bring hot air from directions ranging from the hot area to the northeast to the desert areas to the southeast. These two types reveal unexpected dynamical complexity, hint at different remote associations, and expand the assessment needed of climate models’ simulations of these heat waves.
41
Liess, Stefan, Saurabh Agrawal, Snigdhansu Chatterjee, and Vipin Kumar. "A Teleconnection between the West Siberian Plain and the ENSO Region." Journal of Climate 30, no. 1 (January 2017): 301–15. http://dx.doi.org/10.1175/jcli-d-15-0884.1.
Full textAbstract:
The Walker circulation is linked to extratropical waves that are deflected from the Northern Hemisphere polar regions and travel southeastward over central Asia toward the western Pacific warm pool during northern winter. The wave pattern resembles the east Atlantic–west Russia pattern and influences the El Niño–Southern Oscillation (ENSO) region. A tripole pattern between the West Siberian Plain and the two centers of action of ENSO indicates that the background state of ENSO with respect to global sea level pressure (SLP) has a significant negative correlation to the West Siberian Plain. The correlation with the background state, which is defined by the sum of the two centers of action of ENSO, is higher than each of the pairwise correlations with either of the ENSO centers alone. The centers are defined with a clustering algorithm that detects regions with similar characteristics. The normalized monthly SLP time series for the two centers of ENSO (around Darwin, Australia, and Tahiti) are area averaged, and the sum of both regions is considered as the background state of ENSO. This wave train can be detected throughout the troposphere and the lower stratosphere. Its origins can be traced back to Rossby wave activity triggered by convection over the subtropical North Atlantic that emanates wave activity toward the West Siberian Plain. The same wave train also propagates to the central Pacific Ocean around Tahiti and can be used to predict the background state over the ENSO region. This background state also modifies the subtropical bridge between tropical eastern Pacific and subtropical North Atlantic leading to a circumglobal wave train.
42
Posern-Zieliński, Aleksander. "La globalización en los países andinos y la situación de la población indígena." Estudios Latinoamericanos 25 (December 9, 2020): 5–32. http://dx.doi.org/10.36447/estudios2005.v25.art1.
Full textAbstract:
Short description (Adapted from introductory paragraph):“Since the early 90s of the 20th century, I followed systematically the development of the socio-cultural and ethno-political situation in the Andean region, meaning the countries in West South America, whose territories include the Pacific coast, and extend into the Andes. The main area of my anthropological investigations relates to three countries, namely to Ecuador, Bolivia and Peru. Despite the fundamental differences in economic development and particular political differences that can be observed, these countries have much in common. This allows me to treat this region as a single cultural entity and to compare similarities between processes taking place here…”
Translated and adapted by Michal Gilewski
43
REYES-GÓMEZ, ADRIANA, RAFAEL FLORES-GARZA, LIZETH GALEANA-REBOLLEDO, GERARDO HERNÁNDEZ-VERA, CRISTIAN M. GALVÁN-VILLA, CARMINA TORREBLANCA-RAMÍREZ, PEDRO FLORES-RODRÍGUEZ, SERGIO GARCÍA-IBAÑEZ, and EDUARDO RÍOS-JARA. "Intertidal chitons (Mollusca: Polyplacophora) from the rocky coastline of Guerrero, México, with the description of a new species." Zootaxa 5155, no. 4 (June 23, 2022): 451–92. http://dx.doi.org/10.11646/zootaxa.5155.4.1.
Full textAbstract:
Chitons from southern México have been poorly documented hitherto and little is known about the species present in this region. Here we report 12 intertidal to shallow subtidal species in six families and nine genera. Chiton articulatus, Chiton albolineatus, and Ischnochiton muscarius were numerically the most common species, accounting for 29%, 27%, and 26% of individuals found, followed by Chaetopleura lurida (7%) and Stenoplax limaciformis (3%). The remainder of the species obtained were present with between 0.5 and 2% of the total sample. Eight species are distributed along the Tropical Eastern Pacific, and four species (I. muscarius, C. albolineatus, C. articulatus, and Lepidochitona acapulcoensis sp. nov.) are endemic to the Mexican subprovince, distributed from Mazatlán to Oaxaca. A morphological comparison of Guerrero chitons with those from several points along the Mexican Tropical Pacific and La Paz Baja California Sur, revealed important variations. Specimens of Chaetopleura lurida from Guerrero contrasts in the valve sculpturing density and arrangement when compared to those from Mazatlán and Oaxaca. Callistochiton elenensis from Guerrero exhibits fewer ribs on the head valve and postmucronal area of the tail valve than specimens from La Paz, Baja California Sur. Color pattern differences were identified for Mazatlán and Oaxaca specimens of I. muscarius, C. articulatus, and C. albolineatus. Details are presented for the valve tegmentum, girdle elements, and radula for each species. In addition, we herein describe Lepidochitona acapulcoensis sp. nov. as a new species using barcode (cox1) and morphological data.
44
TU, TZU-HSUAN, CHANG-FENG DAI, and MING-SHIOU JENG. "Precious corals (Octocorallia: Coralliidae) from the northern West Pacific region with descriptions of two New Species." Zootaxa 3395, no. 1 (July 23, 2012): 1. http://dx.doi.org/10.11646/zootaxa.3395.1.1.
Full textAbstract:
Members of the family Coralliidae, known as precious corals, are ecologically and economically important deep-sea or-ganisms. However, these organisms are currently threatened by commercial harvesting. In order to create and implementeffective conservative strategies, taxonomic knowledge of conservative targets is necessary, but unfortunately the taxon-omy of precious corals in this family is still ambiguous. This study provides a review of 15 Coralliidae species from thenorthern West Pacific region and a key to species identification. In addition, descriptions of two new species, Coralliumcarusrubrum n. sp. and C. taiwanicum n. sp., as well as a redescription of C. sulcatum Kishinouye, 1903 are included.Corallium carusrubrum n. sp. is distributed on seamounts off northeastern Taiwan. The autozooids of C. carusrubrum n.sp. are retractile and each can be fully withdrawn into the cortex thereby causing a mound on the surface which is shortand cylindrical rather than typically hemispherical; additionally, there are no long spindles in their tentacles. Coralliumtaiwanicum n. sp. is distributed in an area off southwestern Taiwan. It has special unique 8-radiates with an oval shapeand large projections. Corallium sulcatum is distributed from an area off southwestern Taiwan to western Japan. It hasbeen harvested and traded for decades, but there were no illustrations in its original description, hence a redescription of this species is provided.
45
Liu, Kaixi, Yajie Wang, Baohui Zhang, Hu Liu, Xu Wang, and Bin Wei. "Optimization of satellite resource scheduling under regional target coverage conditions." Open Astronomy 31, no. 1 (January 1, 2022): 318–26. http://dx.doi.org/10.1515/astro-2022-0036.
Full textAbstract:
Abstract This study presented a mathematical description of an arbitrary shape area, and after analyzing the characteristics of the near-polar orbital co-ground trajectory constellation that satisfies the revisit interval constraint, an optimization model of the orbital parameters design of reference satellites in regional coverage constellations was constructed. Then based on the designed area covering the constellation of common ground trajectories, a simple and effective two-pulse maneuvering scheme was adopted for the needs of sudden tasks, and an existing satellite scheduling optimization model using the golden section method to constrain the boundary of substellar point coverage was constructed. Finally, the optimal design of regional coverage constellations and existing satellite dispatches was carried out for the sea areas with the most frequent tropical cyclone activities in the northwest Pacific Ocean, and the simulation results verified the effectiveness of the proposed optimization model and have certain practical use value.
46
Krasnikov, Aleksander, Irina Nikishina, Olga Mudrakova, and Igor Krasilnikov. "Simulation modelling of traffic flow of the east-west latitudinal corridor for socio-economic development of the Novosibirsk region." BIO Web of Conferences 83 (2024): 05003. http://dx.doi.org/10.1051/bioconf/20248305003.
Full textAbstract:
The article presents the study’s results to assess the degree of impact of different categories of objects on traffic flows in the city of Novosibirsk (Russia). The main feature of the area is its intersection with the Trans-Siberian Railway. The highway is a transport corridor linking states in the European part of the continent with the countries of the Asia-Pacific region. Using structurization, analysis, synthesis, and simulation modeling allowed us to obtain a quantitative and qualitative description of the key objects whose behavior significantly affects the implementation of traffic flows in the study area. Formal rail, road, and pedestrian behavior models are studied and presented. Such models became the basis of simulation modeling, allowing us to estimate the degree of influence of modernization of the Trans-Siberian Railway and the objects of street road infrastructure of Novosibirsk adjacent to the relevant sections of the railway.
47
Swan, William L. "Thai-Japan Monetary Relations at the Start of the Pacific War." Modern Asian Studies 23, no. 2 (May 1989): 313–47. http://dx.doi.org/10.1017/s0026749x00001086.
Full textAbstract:
In the wake of their rapid advance into Southeast Asia after 8 December 1941, the Japanese began to implement a new monetary policy in the region to replace the long-established Western financial order that was being swept away. The purpose of this article is to discuss aspects of this monetary policy, in particular how it was carried out in regards to Thailand during the first year of the war, the period during which Thai–Japan wartime relations became established. In the wake of their rapid advance into Southeast Asia after 8 December 1941, the Japanese began to implement a new monetary policy in the region to replace the long-established Western financial order that was being swept away. The purpose of this article is to discuss aspects of this monetary policy, in particular how it was carried out in regards to Thailand during the first year of the war, the period during which Thai-Japan wartime relations became established. With the outbreak of war the most urgent need of the Japanese in their relations with Thailand was to convert that country into a suitable rear area for their campaign in Malaya and for the one upcoming against Burma. To this end the Japanese and Thai governments signedon 8 December an agreement permitting Japanese forces to pass through Thai territory to attack Malaya; but equally important the agreement also stipulated that Thailand would afford the Japanese forces all necessary convenience for their passage through Thailand. This stipulation was the key that opened the way for the Japanese to pursue their plans towards Thailand. By passage, of course, the Japanese did not simply mean the travel of their army through Thai territory to attack Malaya and later Burma (although superficially this is what was implied).
48
Lörz, Anne-Nina, Anna Maria Jażdżewska, and Angelika Brandt. "A new predator connecting the abyssal with the hadal in the Kuril-Kamchatka Trench, NW Pacific." PeerJ 6 (June 7, 2018): e4887. http://dx.doi.org/10.7717/peerj.4887.
Full textAbstract:
The bathyal to hadal deep sea of north-west Pacific Ocean was recently intensively sampled during four international expeditions (KuramBio I and II, SoJaBio and SokhoBio). A large amphipod,Rhachotropis saskian. sp., was sampled in the Kuril-Kamchatka Trench and increases the number of described hadal species of that area to eight. A detailed description of the new species is provided, including illustrations, scanning-microscope images and molecular analysis. This predatory species was sampled at both continental and ocean abyssal margins of the Kuril-Kamchatka Trench as well as at hadal depths of the trench. The wide bathymetric distribution of the new species over more than 3,000 m is confirmed by molecular analysis, indicating that the Kuril Kamchatka Trench is not a distribution barrier for this species. However, the molecular analysis indicated the presence of isolation by distance of the populations of the studied taxon.
49
BITNER, MARIA ALEKSANDRA. "Recent Brachiopoda from the Norfolk Ridge, New Caledonia, with description of four new species." Zootaxa 2235, no. 1 (September 18, 2009): 1–39. http://dx.doi.org/10.11646/zootaxa.2235.1.1.
Full textAbstract:
Twenty-two brachiopod species belonging to 19 genera have been recognized in the material collected during two cruises, Norfolk 1 and Norfolk 2, to the Norfolk Ridge south of New Caledonia, at depths of 180 to 1150 m. Thirteen species are reported for the first time from this locality, while four genera, Aulites, Septicollarina, Annuloplatidia and Campages, are noted for the first time from the New Caledonian region. Thecidellina minuta is recorded for the first time from the Pacific. Four new species are described ― Cryptopora norfolkensis sp. nov., Aulites crosnieri sp. nov., Septicollarina zezinae sp. nov. and Annuloplatidia richeri sp. nov. The distribution of the particular species and their abundance vary considerably between the 15 sampled seamounts, with Stenosarina crosnieri and Fallax neocaledonensis being most widely distributed, and the seamount Crypthelia having the highest biodiversity. The seamount brachiopods show considerable affinity to the brachiopods of adjacent regions, and only three species ― C. norfolkensis, A. crosnieri and A. richeri ― can be regarded as potential endemics. The brachiopod fauna is more similar to that in the area around Fiji than to that around Australasia.
50
Teichert, Nils, Pierre Valade, Pierre Bosc, Marine Richarson, and Philippe Gaudin. "Spawning-habitat selection of an Indo-Pacific amphidromous gobiid fish, Sicyopterus lagocephalus (Pallas)." Marine and Freshwater Research 64, no. 11 (2013): 1058. http://dx.doi.org/10.1071/mf13035.
Full textAbstract:
Freshwater-fish populations of the Indo-pacific region are characterised by a large proportion of amphidromous species. We analysed the spawning-habitat selection of Sicyopterus lagocephalus (Gobiidae: Sicydiinae) within two rivers of the Reunion Island. Reproduction traces are rare events, so a presence-only sampling procedure was performed to collect egg clutches and a random description of available habitat was conducted to generate pseudo-absence data. Logistic models showed a strong selection for microhabitat variables and mesohabitat units. S. lagocephalus selected areas where availability of potential nests was high (small cobble to small boulder) and where interstitial substratum allowed intragravel flow. Our results suggest that the availability of favourable substratum may be a limiting factor, which could result in occupancy of suboptimal areas. Water depth and velocity had less of an effect on the selection of a spawning area. Higher selection for shallow (<60 cm) and lotic (>30 cm s–1) geomorphic units, with an optimum for riffle and cascade, suggested that mesohabitat could be a satisfactory approach to quickly assess the availability of spawning areas within a watercourse for expertise studies.