316,457 Works

New data and diagnosis for the Arctic ceratopsid dinosaur Pachyrhinosaurus perotorum

Ronald S. Tykoski, Anthony R. Fiorillo & Kentaro Chiba
The pachyrostran centrosaurine dinosaur Pachyrhinosaurus perotorum is the geologically youngest (Maastrichtian, 70–68.5 Ma) centrosaurine, and latitudinally highest distributed ceratopsid yet known. Continued preparation of material collected from the type locality, the Kikak-Tegoseak Quarry, has produced more examples of cranial material from multiple individuals, including partial skulls and incomplete parietals. The original reconstruction of the type parietal was incorrect, and the element is similar to that of other Pachyrhinosaurus species in bearing medially directed epiparietal 2...

An early and new member of Balaenopteridae from the upper Miocene of Hokkaido, Japan

Yoshihiro Tanaka & Mahito Watanabe
The family Balaenopteridae includes the modern blue whale, which is the largest animal on Earth. Our knowledge of the early members of Balaenopteridae, especially during the late Miocene and earlier periods, has recently increased, but this family is still poorly understood. A fossil balaenopterid (including the frontals, squamosals, parietals, vomer, pterygoid, basisphenoid, basioccipital, exoccipitals, right periotic and presternum) from the lower part of the Horokaoshirarika Formation, late Miocene (6.5–6.8 Ma) of Hokkaido, Japan is named...

New data and diagnosis for the Arctic ceratopsid dinosaur Pachyrhinosaurus perotorum

Ronald S. Tykoski, Anthony R. Fiorillo & Kentaro Chiba
The pachyrostran centrosaurine dinosaur Pachyrhinosaurus perotorum is the geologically youngest (Maastrichtian, 70–68.5 Ma) centrosaurine, and latitudinally highest distributed ceratopsid yet known. Continued preparation of material collected from the type locality, the Kikak-Tegoseak Quarry, has produced more examples of cranial material from multiple individuals, including partial skulls and incomplete parietals. The original reconstruction of the type parietal was incorrect, and the element is similar to that of other Pachyrhinosaurus species in bearing medially directed epiparietal 2...

New data and diagnosis for the Arctic ceratopsid dinosaur Pachyrhinosaurus perotorum

Ronald S. Tykoski, Anthony R. Fiorillo & Kentaro Chiba
The pachyrostran centrosaurine dinosaur Pachyrhinosaurus perotorum is the geologically youngest (Maastrichtian, 70–68.5 Ma) centrosaurine, and latitudinally highest distributed ceratopsid yet known. Continued preparation of material collected from the type locality, the Kikak-Tegoseak Quarry, has produced more examples of cranial material from multiple individuals, including partial skulls and incomplete parietals. The original reconstruction of the type parietal was incorrect, and the element is similar to that of other Pachyrhinosaurus species in bearing medially directed epiparietal 2...

A new lophocyonid, Izmirictis cani gen. et sp. nov. (Carnivora: Mammalia), from the lower Miocene of Turkey

Jorge Morales, Serdar Mayda, Alberto Valenciano, Daniel DeMiguel & Tanju Kaya
Lophocyonids are one of the more enigmatic groups of Carnivora in the European Miocene fossil record. Lophocyonids are clearly distinguished from other Feliformia by their peculiar lophodont dental morphology. For this reason, the systematic relationships of the family have been controversial. Here we describe and interpret dental remains from the early Miocene of Sabuncubeli, Turkey, which we attribute to a new genus and species: Izmirictis cani. The phylogenetic analysis allows us to include Izmirictis within...

Phylogenetic relationships of the family Carditidae (Bivalvia: Archiheterodonta)

Damián Eduardo Pérez
Carditidae is a highly speciose group of bivalves but is one of the more neglected and poorly studied families. This work presents the first phylogenetic study of the entire family, using 77 species-level taxa (including fossil and recent terminals) and 144 new morphological characters. Multiple searches were conducted, including comparisons of discrete and continuous characters and equal and implied weighting. Morphological disparity analysis, phylomorphospace construction and phylogenetic signal analysis were performed using the character matrix....

A new lophocyonid, Izmirictis cani gen. et sp. nov. (Carnivora: Mammalia), from the lower Miocene of Turkey

Jorge Morales, Serdar Mayda, Alberto Valenciano, Daniel DeMiguel & Tanju Kaya
Lophocyonids are one of the more enigmatic groups of Carnivora in the European Miocene fossil record. Lophocyonids are clearly distinguished from other Feliformia by their peculiar lophodont dental morphology. For this reason, the systematic relationships of the family have been controversial. Here we describe and interpret dental remains from the early Miocene of Sabuncubeli, Turkey, which we attribute to a new genus and species: Izmirictis cani. The phylogenetic analysis allows us to include Izmirictis within...

An early and new member of Balaenopteridae from the upper Miocene of Hokkaido, Japan

Yoshihiro Tanaka & Mahito Watanabe
The family Balaenopteridae includes the modern blue whale, which is the largest animal on Earth. Our knowledge of the early members of Balaenopteridae, especially during the late Miocene and earlier periods, has recently increased, but this family is still poorly understood. A fossil balaenopterid (including the frontals, squamosals, parietals, vomer, pterygoid, basisphenoid, basioccipital, exoccipitals, right periotic and presternum) from the lower part of the Horokaoshirarika Formation, late Miocene (6.5–6.8 Ma) of Hokkaido, Japan is named...

Phylogenetic relationships of the family Carditidae (Bivalvia: Archiheterodonta)

Damián Eduardo Pérez
Carditidae is a highly speciose group of bivalves but is one of the more neglected and poorly studied families. This work presents the first phylogenetic study of the entire family, using 77 species-level taxa (including fossil and recent terminals) and 144 new morphological characters. Multiple searches were conducted, including comparisons of discrete and continuous characters and equal and implied weighting. Morphological disparity analysis, phylomorphospace construction and phylogenetic signal analysis were performed using the character matrix....

Plant remains and associated insects from the Millipede site (13ML361), a burned earthlodge in southwest Iowa

William Green, Ronald C. Schirmer & William T. Billeck
The Millipede site is a Nebraska variant (Central Plains tradition) lodge dating to ca. AD 1300. The structure had burned, preserving a rich array of plant remains and insects. Elm was the principal wood used in lodge construction and hophornbeam (ironwood) was also heavily employed. Maize (mostly 10-row) was plentiful, and common beans also were present. Over 3,600 goosefoot (Chenopodium cf. berlandieri) seeds were recovered, most of which derive from a domesticated variety. Other abundant...

Plant remains and associated insects from the Millipede site (13ML361), a burned earthlodge in southwest Iowa

William Green, Ronald C. Schirmer & William T. Billeck
The Millipede site is a Nebraska variant (Central Plains tradition) lodge dating to ca. AD 1300. The structure had burned, preserving a rich array of plant remains and insects. Elm was the principal wood used in lodge construction and hophornbeam (ironwood) was also heavily employed. Maize (mostly 10-row) was plentiful, and common beans also were present. Over 3,600 goosefoot (Chenopodium cf. berlandieri) seeds were recovered, most of which derive from a domesticated variety. Other abundant...

Plant remains and associated insects from the Millipede site (13ML361), a burned earthlodge in southwest Iowa

William Green, Ronald C. Schirmer & William T. Billeck
The Millipede site is a Nebraska variant (Central Plains tradition) lodge dating to ca. AD 1300. The structure had burned, preserving a rich array of plant remains and insects. Elm was the principal wood used in lodge construction and hophornbeam (ironwood) was also heavily employed. Maize (mostly 10-row) was plentiful, and common beans also were present. Over 3,600 goosefoot (Chenopodium cf. berlandieri) seeds were recovered, most of which derive from a domesticated variety. Other abundant...

Our health, our planet: a cross-sectional analysis on the association between health consciousness and pro-environmental behavior among health professionals

Akihiro Shimoda, Hana Hayashi, David Sussman, Keisuke Nansai, Isao Fukuba, Ichiro Kawachi & Naoki Kondo
One possible predictive factor that affects both pro-environmental behavior and health behavior is health consciousness (a psychological state where an individual is aware of and involved in his/her health condition). We examined the relationship between health consciousness and two pro-environmental behaviors (recycling and green purchasing) within health professionals in a Japanese large hospital. Multivariate linear regression analysis revealed a significant association between health consciousness and recycling behavior, while there was no association between health consciousness...

Our health, our planet: a cross-sectional analysis on the association between health consciousness and pro-environmental behavior among health professionals

Akihiro Shimoda, Hana Hayashi, David Sussman, Keisuke Nansai, Isao Fukuba, Ichiro Kawachi & Naoki Kondo
One possible predictive factor that affects both pro-environmental behavior and health behavior is health consciousness (a psychological state where an individual is aware of and involved in his/her health condition). We examined the relationship between health consciousness and two pro-environmental behaviors (recycling and green purchasing) within health professionals in a Japanese large hospital. Multivariate linear regression analysis revealed a significant association between health consciousness and recycling behavior, while there was no association between health consciousness...

Children’s influence on consumption-related decisions in single-mother families: Research review and Agenda

Sarita Ray Chaudhury & Michael Hyman
Although social scientists have identified diverse behavioral patterns among children from dissimilarly structured families, scholars have progressed little in relating modern family processes to consumption-related decisions. Based on gaps and limitations identified in a review of the existing consumer decision-making literature, this study examines how children influence family consumption decision-making in single-mother families and posits a conceptual framework that integrates normative resource exchange theory with existing consumer decision-making model theory. The implications for a better...

Children’s influence on consumption-related decisions in single-mother families: Research review and Agenda

Sarita Ray Chaudhury & Michael Hyman
Although social scientists have identified diverse behavioral patterns among children from dissimilarly structured families, scholars have progressed little in relating modern family processes to consumption-related decisions. Based on gaps and limitations identified in a review of the existing consumer decision-making literature, this study examines how children influence family consumption decision-making in single-mother families and posits a conceptual framework that integrates normative resource exchange theory with existing consumer decision-making model theory. The implications for a better...

Analysis of Tweet Form’s Effect on Users’ Engagement on Twitter

Xu Han, Xingyu Gu & Shuai Peng
Brief Abstract This research focus on the effects on users’ engagement of different tweet forms including text length, text sentiment and the usage of hashtag, mention, video or picture URL. In first part, we analyzes the tweets of five companies from apparel industry, and finds out that there is no universal form that can boost user’s engagement, but in company scale, the effects of difference forms between companies is various due to company attributes. Hence,...

Analysis of Tweet Form’s effect on users’ engagement on Twitter

Xu Han, Xingyu Gu & Shuai Peng
This research focuses on the effects on users’ engagement of different tweet forms including text length, text sentiment and the usage of hashtag, mention, video or picture URL. In the first part, we analyze the tweets of five companies from the apparel industry and finds out that there is no universal form that can boost user’s engagement, but in company scale, the effects of different forms between companies are various due to company attributes. Hence,...

Analysis of Tweet Form’s effect on users’ engagement on Twitter

Xu Han, Xingyu Gu & Shuai Peng
This research focuses on the effects on users’ engagement of different tweet forms including text length, text sentiment and the usage of hashtag, mention, video or picture URL. In the first part, we analyze the tweets of five companies from the apparel industry and finds out that there is no universal form that can boost user’s engagement, but in company scale, the effects of different forms between companies are various due to company attributes. Hence,...

Integrated risk assessment of snow disaster over the Qinghai-Tibet Plateau

Wang Shijin, Zhou Lanyue & Wei Yanqiang
After analysing systematically formation mechanism of snow disaster (SD), this study revealed spatial-temporal characteristics of historical disasters, snowfall events, disaster-formation environment, livestock overload, vulnerability of livestock and adaptability, finally evaluated integrated risk index (IRI) of the SDs over the Qinghai-Tibetan Plateau (QTP) using ArcGIS method. Over the past more than 50 years, the recorded large scale SDs occurred 238 times. Overall, the large scale SDs decreased, yet the small scale SDs increased in frequency. Particularly,...

The Basilicata region (Southern Italy): a natural and ‘human-built’ open-air laboratory for manifold studies. Research trends over the last 24 years (1994–2017)

Fabrizio Terenzio Gizzi, Monica Proto & Maria Rosaria Potenza
The Basilicata region (Southern Italy) is characterized by a peculiar environmental as well as biological, geological, and cultural heritage features that are evident in national and regional parks as well as places of monumental and archaeological relevance, including the Matera UNESCO Site. Basilicata hosts the highly studied Vulture volcanic complex and the largest hydrocarbon reservoir in continental Europe. Furthermore, the region falls among the Italian regions most prone to landslides and floods and it is...

Integrated risk assessment of snow disaster over the Qinghai-Tibet Plateau

Wang Shijin, Zhou Lanyue & Wei Yanqiang
After analysing systematically formation mechanism of snow disaster (SD), this study revealed spatial-temporal characteristics of historical disasters, snowfall events, disaster-formation environment, livestock overload, vulnerability of livestock and adaptability, finally evaluated integrated risk index (IRI) of the SDs over the Qinghai-Tibetan Plateau (QTP) using ArcGIS method. Over the past more than 50 years, the recorded large scale SDs occurred 238 times. Overall, the large scale SDs decreased, yet the small scale SDs increased in frequency. Particularly,...

A hierarchical mathematical model of the earthquake shelter location-allocation problem solved using an interleaved MPSO–GA

Xiujuan Zhao, Graham Coates & Wei Xu
Earthquake disaster management involves determining locations in which to construct shelters and how to allocate the affected population to them. A multi-objective, hierarchical mathematical model, allied with an interleaved modified particle swarm optimization algorithm and genetic algorithm (MPSO–GA), have been developed to solve the earthquake shelter location-allocation problem. From a set of candidate shelter locations, the model first determines which of these should act as emergency shelters and then which should be used as long-term...

Satellite-based assessment of the August 2018 flood in parts of Kerala, India

C.L. Vishnu, K.S. Sajinkumar, T. Oommen, R.A. Coffman, K.P. Thrivikramji, V.R. Rani & S. Keerthy
From 1 June to 29 August 2018, Kerala, a state in southwestern India, recorded 36% excess rainfall than normal levels, leading to widespread floods and landslides events and resulting in 445 deaths. In this study, satellite-based data were used to map the flood inundation in the districts of Thrissur, Ernakulam, Alappuzha, Idukki and Kottayam. Specifically, flood delineation was enabled with Sentinel-1A radar data of 21 August 2018 and was compared with an average pre-flood, water-cover...

The Basilicata region (Southern Italy): a natural and ‘human-built’ open-air laboratory for manifold studies. Research trends over the last 24 years (1994–2017)

Fabrizio Terenzio Gizzi, Monica Proto & Maria Rosaria Potenza
The Basilicata region (Southern Italy) is characterized by a peculiar environmental as well as biological, geological, and cultural heritage features that are evident in national and regional parks as well as places of monumental and archaeological relevance, including the Matera UNESCO Site. Basilicata hosts the highly studied Vulture volcanic complex and the largest hydrocarbon reservoir in continental Europe. Furthermore, the region falls among the Italian regions most prone to landslides and floods and it is...

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