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https://read.qxmd.com/read/30783559/geometric-morphometric-analysis-in-female-freshwater-crabs-of-sarawak-borneo-permits-addressing-taxonomy-related-problems
#1
Jongkar Grinang, Indraneil Das, Peter K L Ng
The taxonomy of freshwater crabs requires a paradigm change in methodological approaches, particularly in investigations that use morphological techniques. The traditional morphometric approach (two-dimensional measurements) tends to be inappropriate for the identification of freshwater crabs due to their variable external morphology and lack of gonopods (conventionally used for the identification of male crabs) in females. In this study, we explore the potential use of the geometric morphometric technique for identification of female freshwater crabs, and identify taxonomic key characteristics of species...
2019: PeerJ
https://read.qxmd.com/read/30777354/femur-associated-with-the-deep-skull-from-the-west-mouth-of-the-niah-caves-sarawak-malaysia
#2
Darren Curnoe, Ipoi Datan, Hsiao Mei Goh, Mohammed S Sauffi
The skeletal remains of Pleistocene anatomically modern humans are rare in island Southeast Asia. Moreover, continuing doubts over the dating of most of these finds has left the arrival time for the region's earliest inhabitants an open question. The unique biogeography of island Southeast Asia also raises questions about the physical and cultural adaptations of early anatomically modern humans, especially within the setting of rainforest inhabitation. Within this context the Deep Skull from the West Mouth of the Niah Caves continues to figure prominently owing to its relative completeness and the greater certainty surrounding its geological age...
February 2019: Journal of Human Evolution
https://read.qxmd.com/read/30636372/problematic-alcohol-use-and-depression-among-secondary-school-students-in-miri-malaysia
#3
Keng Hong Chhoa, Hazli Zakaria, Fairuz Nazri Abd Rahman
BACKGROUND: Alcohol consumption in the under-aged is one of the main concerns regarding the Malaysian adolescents. There is no previous study about problematic alcohol use (PAU) among adolescents in Sarawak. This study aims to determine the prevalence of PAU, its associated variables and its relationship with depression. METHODS: This is a cross sectional study. Socio-demographic data, Alcohol Use Disorder Identification Test and Children's Depression Inventory were administered to 327 secondary school students...
January 13, 2019: Pediatrics International: Official Journal of the Japan Pediatric Society
https://read.qxmd.com/read/30606794/early-career-researchers-an-interview-with-danielle-levesque
#4
(no author information available yet)
Danielle Levesque is an Assistant Professor at the University of Maine, USA, where she studies hibernation and torpor in mammals. She received her Bachelor's degree in Wildlife Biology from McGill University, Canada, in 2006, before completing her PhD with Barry Lovegrove at the University of KwaZulu-Natal, South Africa, in 2014. She then completed a Postdoctoral Fellowship at University of Malaysia Sarawak with Andrew Alek Tuen before moving to Maine in 2015.
January 3, 2019: Journal of Experimental Biology
https://read.qxmd.com/read/30599921/valuable-components-of-bambangan-fruit-mangifera-pajang-and-its-co-products-a-review
#5
M H A Jahurul, I S M Zaidul, Leykey Beh, M S Sharifudin, Shafiquzzaman Siddiquee, M Hasmadi, F Sahena, A H Mansoor, J S Lee, S Jinap
Fruits are important food commodities that can be consumed either raw or processed and are valued for their taste, nutrients, and healthy compounds. Mangifera pajang Kosterm (bambangan) is an underutilized fruit found in Malaysia (Sabah and Sarawak), Brunei, and Indonesia (Kalimantan). It is highly fibrous and juicy with an aromatic flavour and strong smell. In recent years, bambangan fruit has been gaining more attention due to its high fibre, carotenoid content, antioxidant properties, phytochemicals, and medicinal usages...
January 2019: Food Research International
https://read.qxmd.com/read/30595495/the-cave-population-of-chaerilus-simon-1877-from-palawan-philippines-and-description-of-a-new-species-scorpiones-chaerilidae
#6
Wilson R Lourenço, Andrea Rossi
The study of an important collection of scorpions, belonging to the genus Chaerilus, recently collected from a cave in the Palawan Island, Philippines, allows the clarification of the identity of this population, often misidentified with Chaerilus chapmani Vachon & Lourenço, 1985 known from caves in the Gunong Mulu National Park in Sarawak (Borneo). Chaerilus agnellivanniorum sp. n. is described from the Puerto Princesa Underground River Cave in Palawan Island based on 14 specimens, males, females, and juveniles...
December 27, 2018: Comptes Rendus Biologies
https://read.qxmd.com/read/30581686/the-plasmodium-knowlesi-pk41-surface-protein-diversity-natural-selection-sub-population-and-geographical-clustering-a-6-cysteine-protein-family-member
#7
Md Atique Ahmed, Ki-Back Chu, Fu-Shi Quan
Introduction: The zoonotic malaria parasite Plasmodium knowlesi has currently become the most dominant form of infection in humans in Malaysia and is an emerging infectious disease in most Southeast Asian countries. The P41 is a merozoite surface protein belonging to the 6-cysteine family and is a well-characterized vaccine candidate in P. vivax and P. falciparum ; however, no study has been done in the orthologous gene of P. knowlesi . This study investigates the level of polymorphism, haplotypes and natural selection of pk41 genes in clinical isolates from Malaysia...
2018: PeerJ
https://read.qxmd.com/read/30526734/high-prevalence-of-rodent-borne-bartonella-spp-in-urbanizing-environments-in-sarawak-malaysian-borneo
#8
Kim R Blasdell, David Perera, Cadhla Firth
Rodents are the most prominent animal host of Bartonella spp., which are associated with an increasing number of human diseases worldwide. Many rodent species thrive in urban environments and live in close contact with people, which can lead to an increased human risk of infection from rodent-borne pathogens. In this study, we explored the prevalence and distribution of Bartonella spp. in rodents in urban, developing, and rural environments surrounding a growing city in Sarawak, Malaysian Borneo. We found that although Bartonella spp...
December 10, 2018: American Journal of Tropical Medicine and Hygiene
https://read.qxmd.com/read/30524759/phenolic-rich-baccaurea-angulata-modulates-inflammatory-biomarkers-of-atherosclerosis
#9
Muhammad Ibrahim, Maryam Abimbola Mikail, Idris Adewale Ahmed, Radiah Abdul Ghani
Purpose: Cardiovascular disease (CVD) is the leading and the most critical type of chronic disease. Atherosclerosis is the most common cause of CVD. Inflammation has been progressively acknowledged as a vital and central player in the pathophysiology of atherosclerosis. Baccaurea angulata is an underutilized fruit of the island of Borneo. It was obtained from Bau, Sarawak, Malaysia. In our previous studies, B. angulata did not only increase antioxidant enzyme activities, but also slowed the lipid peroxidation process in high-cholesterol-fed rabbits...
2018: Journal of Nutrition and Metabolism
https://read.qxmd.com/read/30486151/new-species-of-the-ant-mimicking-genus-myrmarachne-macleay-1839-araneae-salticidae-from-sarawak-borneo
#10
Takeshi Yamasaki, Yoshiaki Hashimoto, Tomoji Endo, Fujio Hyodo, Takao Itioka, Paulus Meleng
The genus Myrmarachne MacLeay, 1839 (Araneae: Salticidae) is one of the most diversified salticid groups in Southeast Asia, with 23 species previously recorded from Borneo. Based on the collections accumulated from 2004 to 2014 in the Lambir Hills National Park, we herein describe six new species: M. amabilis sp. nov., M. hashimotoi sp. nov., M. lagarosoma sp. nov., M. leptosoma sp. nov., M. salaputium sp. nov. and M. tintinnabulum sp. nov. In addition, we describe the female of M. endoi Yamasaki Ahmad, 2013 for the first time...
November 14, 2018: Zootaxa
https://read.qxmd.com/read/30485965/a-new-species-of-highland-vampire-crab-crustacea-brachyura-sesarmidae-geosesarma-from-serian-sarawak
#11
Peter K L Ng, Jongkar Grinang
A new species of semiterrestrial highland vampire crab of the family Sesarmidae, Geosesarma larsi n. sp., is described from western Sarawak. This brings the number of Bornean Geosesarma species to 12. Geosesarma larsi n. sp. is distinguished from congeners by the structures of the carapace, third maxilliped exopod and gonopods, as well as the proportions of its ambulatory legs. The colour pattern in life is also strikingly different from allied species. Notes on its ecology are provided and conservation threats briefly discussed...
November 2, 2018: Zootaxa
https://read.qxmd.com/read/30481580/indel-informed-bayesian-analysis-suggests-cryptic-divisions-between-plasmodium-knowlesi-of-humans-and-long-tailed-macaques-macaca-fascicularis-in-malaysian-borneo
#12
Justin J S Wilcox, Abigail Kerschner, Hope Hollocher
Plasmodium knowlesi is a major causative agent of malaria in humans of Southeast Asia. Macaques are natural hosts for this parasite, which is considered to be zoonotic, but little is conclusively known about its patterns of transmission within and between these hosts. Here, we apply a novel phylogenetic approach to test for patterns of cryptic population genetic structure between P. knowlesi isolated from humans and long-tailed macaques from the state of Sarawak in Malaysian Borneo. Our approach differs from previous investigations through our exhaustive use of archival 18S Small Subunit rRNA (18S) gene sequences from Plasmodium and Hepatocystis species, our inclusion of insertion and deletion information during phylogenetic inference, and our application of Bayesian phylogenetic inference to this problem...
November 24, 2018: Infection, Genetics and Evolution
https://read.qxmd.com/read/30428852/seroprevalence-and-distribution-of-leptospirosis-serovars-among-wet-market-workers-in-northeastern-malaysia-a-cross-sectional-study
#13
Mas Harithulfadhli Agus Ab Rahman, Suhaily Mohd Hairon, Rukman Awang Hamat, Tengku Zetty Maztura Tengku Jamaluddin, Mohd Nazri Shafei, Norazlin Idris, Malina Osman, Surianti Sukeri, Zainudin A Wahab, Wan Mohd Zahiruddin Wan Mohammad, Zawaha Idris, Aziah Daud
BACKGROUND: Leptospirosis is a zoonotic disease associated with occupations which exposed workers to environments contaminated with urine of infected animals. The objective of this study was to determine the seroprevalence of leptospirosis among wet market workers in Kelantan. METHODS: A cross sectional study was conducted in two main wet markets in Kelantan and 232 wet market workers were randomly selected. Blood samples were analysed for microscopic agglutination test (MAT) against 20 live leptospirosis reference serovars...
November 14, 2018: BMC Infectious Diseases
https://read.qxmd.com/read/30353034/population-estimates-of-bornean-orang-utans-using-bayesian-analysis-at-the-greater-batang-ai-lanjak-entimau-landscape-in-sarawak-malaysia
#14
Joshua Pandong, Melvin Gumal, Lukmann Alen, Ailyn Sidu, Sylvia Ng, Lian Pin Koh
The integration of Bayesian analysis into existing great ape survey methods could be used to generate precise and reliable population estimates of Bornean orang-utans. We used the Marked Nest Count (MNC) method to count new orang-utan nests at seven previously undocumented study sites in Sarawak, Malaysia. Our survey teams marked new nests on the first survey and revisited the plots on two more occasions; after about 21 and 42 days respectively. We used the N-mixture models to integrate suitability, abundance and detection models which account for zero inflation and imperfect detection for the analysis...
October 23, 2018: Scientific Reports
https://read.qxmd.com/read/30314190/the-firefly-genus-pteroptyx-olivier-revisited-coleoptera-lampyridae-luciolinae
#15
Wan F A Jusoh, Lesley Ballantyne, Christine L Lambkin, Nor Rasidah Hashim, Niklas Wahlberg
The synchronous firefly genus Pteroptyx Olivier is reassessed from morphological, molecular, and habitat perspectives in Malaysia, and includes some reliably associated females described from morphological features and internal female reproductive anatomy. Phylogenetic analyses using combined morphological and molecular data (where available) for 158 taxa supported all the major features of the existing taxonomic categories within the Indopacific Luciolinae. They revealed a distinct Pteroptyx clade as a morphologically variable genus with Poluninius selangoriensis Ballantyne being newly synonymised with Luciola testacea Motschulsky, the type species, which is redescribed from the type series...
August 6, 2018: Zootaxa
https://read.qxmd.com/read/30313134/on-the-taxonomy-of-lygosoma-bampfyldei-bartlett-1895-squamata-scincidae-with-descriptions-of-new-species-from-borneo-and-peninsular-malaysia-and-the-resurrection-of-lygosoma-schneideri-werner-1900
#16
L Lee Grismer, Evan S H Quah, Zaharil Duzulkafly, Paul Yambun
A reassessment of the taxonomy of Lygosoma bampfyldei based on morphology and color pattern indicates that it is a species complex containing L. bampfyldei Bartlett, 1895 from the Rajang River, Sarawak and Croker Range, Sabah in East Malaysia; L. peninsulare sp. nov. from Bukit Larut, Perak and 13.5 km east of Jeli, Kelantan, Peninsular Malaysia; L. kinabatanganensis sp. nov. from the Kinabatangan District, Deramakot camp (=Deramakot Sabah Forestry Department), Sabah, East Malaysia; and L. schneideri Werner, 1900 from Djapura, Indragiri, Sumatra, Indonesia-resurrected herein from the synonymy of L...
June 22, 2018: Zootaxa
https://read.qxmd.com/read/30281609/thismia-kelabitiana-thismiaceae-a-new-unique-fairy-lantern-from-borneo-potentially-threatened-by-commercial-logging
#17
Martin Dančák, Michal Hroneš, Michal Sochor, Zuzana Sochorová
Thismia kelabitiana, a new unique species from the Sarawak state of Malaysia in the island of Borneo is described and illustrated. This new species is not similar to any species of Thismia described so far especially by having a unique form of mitre and outer perianth lobes deeply divided into 8-10 acute lobes and forming striking fringe around perianth tube opening. The species appears to be critically endangered due to ongoing logging activities in the region. It may potentially become a surrogate species for lower montane forests of the region and thus help protect them against further destruction...
2018: PloS One
https://read.qxmd.com/read/30245728/high-occurrence-of-staphylococcus-aureus-isolated-from-fitness-equipment-from-selected-gymnasiums
#18
Lesley Maurice Bilung, Ahmad Syatir Tahar, Rosdi Kira, Aina Ariffah Mohd Rozali, Kasing Apun
Introduction: Staphylococcus aureus is a leading cause of cutaneous bacterial infection involving community. Methods: In this study, a total of 42 swab samples were collected from the surface of various fitness equipment such as back machines, exercise mats, dip stations, dumbbells, and treadmills. Identification of the bacterial isolates was conducted using biochemical tests and further analysed molecularly using the PCR method targeting nuc gene (270 bp). The nuc gene encodes for the thermonuclease enzyme, a virulent factor of S...
2018: Journal of Environmental and Public Health
https://read.qxmd.com/read/30227867/breast-cancer-risk-factors-survival-and-recurrence-and-tumor-molecular-subtype-analysis-of-3012-women-from-an-indigenous-asian-population
#19
Mustapha Abubakar, Hyuna Sung, Devi Bcr, Jennifer Guida, Tieng Swee Tang, Ruth M Pfeiffer, Xiaohong R Yang
BACKGROUND: Limited evidence, mostly from studies in Western populations, suggests that the prognostic effects of lifestyle-related risk factors may be molecular subtype-dependent. Here, we examined whether pre-diagnostic lifestyle-related risk factors for breast cancer are associated with clinical outcomes by molecular subtype among patients from an understudied Asian population. METHODS: In this population-based case series, we evaluated breast cancer risk factors in relation to 10-year all-cause mortality (ACM) and 5-year recurrence by molecular subtype among 3012 women with invasive breast cancer in Sarawak, Malaysia...
September 18, 2018: Breast Cancer Research: BCR
https://read.qxmd.com/read/30186334/factors-affecting-intention-to-disclose-hiv-status-among-adult-population-in-sarawak-malaysia
#20
Aren Sinedeh Lemin, Md Mizanur Rahman, Cliffton Akoi Pangarah
Background: Disclosure of HIV-positive status is an essential prerequisite for the prevention and care of person living with HIV/AIDS as well as to tackle hidden epidemic in the society. Objective: To determine the intention to disclose the HIV/AIDS status among adult population in Sarawak, Malaysia, and factors affecting thereof. Methods: This cross-sectional community-based study was conducted among adult population aged 18 years and above in Sarawak, Malaysia...
2018: Journal of Environmental and Public Health
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