Continental accretion: from oceanic plateaus to allochthonous terranes     

Ben-Avraham Z  Nur A  Jones D  Cox A 《Science (New York, N.Y.)》1981,213(4503):47-54

Some of the regions of the anomalously high sea-floor topography in today's oceans may be modern allochthonous terranes moving with their oceanic plates. Fated to collide with and be accreted to adjacent continents, they may create complex volcanism, cut off and trap oceanic crust, and cause orogenic deformaton. The accretion of plateaus during subduction of oceanic plates may be responsible for mountain building comparable to that produced by the collision of continents.  相似文献   

Mangrove horseshoe crab (Carcinoscorpius rotundicauda Latreille, 1802) populations reveal genetic break in Strait of Malacca,with connectivity along southern coasts of Peninsular Malaysia     

Nur Fairuz-Fozi  Ludwig Triest  Nurul Ashikin Mat Zauki  Anne Marie Kaben  Bryan Raveen Nelson  Anil Chatterji  Mohd Fadzil Akhir  Behara Satyanarayana  Farid Dahdouh-Guebas 《水产资源保护:海洋与淡水生态系统》2021,31(7):1559-1569

1. The mangrove horseshoe crab, Carcinoscorpius rotundicauda, has divergent populations between the east and west coasts of Peninsular Malaysia, with the southern coast acting as a land barrier. The actual position of such a genetic break along Peninsular Malaysia as well as the connectivity status of the southernmost C. rotundicauda populations with east and west coast populations remain unexplored, however.
2. The aim was to investigate the genetic diversity and structure of C. rotundicauda populations from the west (Kuala Sepetang in State Perak), east (Balok in State Pahang), and southern (Pendas in State Johor) coasts of Peninsular Malaysia. Haemolymph samples from adult C. rotundicauda specimens (n = 152) and eggs from their freshly deposited nests (n = 190) were collected monthly (from January 2016 to January 2017) for the sequencing of mitochondrial cytochrome c oxidase subunit I (COI).
3. Gene isolates of C. rotundicauda from the present study were compared with National Center for Biotechnology Information (NCBI) GenBank sequences to cover most of the range of the species in Asia. A neighbour-joining tree strongly supported two clades, separating the west-coast populations from the south- and east-coast populations, with further substructure patterns.
4. Both haplotype network and barrier analyses revealed a genetic break within the Strait of Malacca instead of the southern tip of Peninsular Malaysia. The southernmost samples from the Strait of Johor formed a haplotypic diverse gene pool that appeared only as a subclade of the eastern populations. In a detailed haplotype network of 347 individuals, individuals with similar COI sequences indicate connectivity between C. rotundicauda on the east and C. rotundicauda on south and south west of Peninsular Malaysia.
5. Overall, the genetic break between C. rotundicauda populations is better explained by the convergent ocean currents and available mangrove habitats on the west coast (i.e. Strait of Malacca), rather than the point of the Malay Peninsula acting as a land barrier alone.

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Limited Impact of 2 g/day Omega-3 Fatty Acid Ethyl Esters (Omacor?) on Plasma Lipids and Inflammatory Markers in Patients Awaiting Carotid Endarterectomy     

Hayati M. Yusof  Abbie L. Cawood  Ren Ding  Jennifer A. Williams  Frances L. Napper  Clifford P. Shearman  Robert F. Grimble  Simon P.K. Payne  Philip C. Calder 《Marine drugs》2013,11(9):3569-3581

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Contribution of forests to the livelihood of the Chakma community in the Chittagong Hill Tracts of Bangladesh   总被引：1，自引：0，他引：1  

Md. Danesh Miah  Sheeladitya Chakma  Masao Koike  Nur Muhammed 《Journal of Forest Research》2012,17(6):449-457

Natural forests offer numerous benefits to indigenous communities and society at large. Incomes from forest sources play an important role in rural households. In addition to this, environmental sources in the forests contribute significantly to rural households’ livelihoods and economic well-being. This paper examines the contributions of forests to the livelihoods of the Chakma tribe in Bangladesh. Using the data from 60 randomly sampled households from three villages, it measured forest-resource use with a monetary yardstick. As revealed through analyses, natural forest-sourced income occupies the second-largest share in total average household income next to shifting cultivation income in the study area. Forest products represent an important component in the local livelihoods, with a direct forest income of 11,256?tk?year^?1?household^?1 (tk = taka, the national currency of Bangladesh; US$1?=?tk70), or 11% of the total income, in addition to the households receiving monetary benefits of 18,951?tk?year^?1?household^?1, or 21% of the total income, through the consumption of forest products. The remaining income came from shifting cultivation practice. It was also observed that larger families with more people gathering forest products realized more forest income. This study will be relevant to forest and environmental policy-makers as well as indigenous community development practitioners.  相似文献   

Efficacy of feed‐based adjuvant vaccine against Streptococcus agalactiae in Oreochromis spp. in Malaysia     

Mohd Firdaus‐Nawi  Sabri Mohd Yusoff  Hanan Yusof  Siti‐Zahrah Abdullah  Mohd Zamri‐Saad 《Aquaculture Research》2013,45(1):87-96

This study was conducted to determine the systemic, mucosal immunity and protective capacity of the feed‐based adjuvant vaccine (FAV) of Streptococcus agalactiae following oral vaccination against streptococcosis in tilapias. Two hundred and sixteen red tilapia fish were divided into three major groups. Each major group consisted eight tilapia kept in nine 2000 L glass aquaria. At day 0, all fish from the FAV group were fed with feed that had been incorporated with an adjuvant, while fish in the feed‐based vaccine (FNV) group were fed with vaccine incorporated into the pellet without adjuvant. Fish in the control‐unvaccinated group, FC, were fed with normal commercial pellet. Booster dose was performed on day 14 post immunization. Fish from each group were sacrificed on a weekly basis for the entire 7 weeks. Serum, body mucus and gut lavage fluid were evaluated for antibody responses by indirect ELISA, while histological examination was carried out on the gut following intraperitoneal challenge. The FAV group had a significantly higher protection (P < 0.05) following challenge with 3.4 × 10⁹ CFU mL^?1 of live S. agalactiae than FNV group. This level of protection may be due to high antibody responses, increase in size of gut‐associated lymphoid tissue and high number of lymphocytes in the FAV group.  相似文献   

Erwinia papayae causing papaya dieback in Malaysia     

N. H. Maktar  S. Kamis  F. Z. Mohd Yusof  N. H. Hussain 《Plant pathology》2008,57(4):774-774

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Risky Behaviors: Effects of Toxorhynchites splendens (Diptera: Culicidae) Predator on the Behavior of Three Mosquito Species     

Wan Fatma Zuharah  Nik Fadzly  Nur Aishah Yusof  Hamady Dieng 《Journal of insect science (Online)》2015,15(1)

Viable biocontrol agents for mosquito control are quite rare, therefore improving the efficacy of existing biological agents is an important study. We need to have a better understanding of the predation-risk behavioral responses toward prey. This research examined prey choices by Toxorhynchites splendens by monitoring the behavioral responses of Aedes aegypti, Aedes albopictus, and Anopheles sinensis larvae when exposed to the predator. The results show that Tx. splendens prefers to consume Ae. aegypti larvae. The larvae exhibited different behavioral responses when Tx. splendens was present which suggest vulnerability in the presence of predators. “Thrashing” and “browsing” activities were greater in Ae. aegypti larvae. Such active and risky movements could cause vulnerability for the Ae. aegypti larvae due to increasing of water disturbance. In contrast, Ae. albopictus and An. sinensis larvae exhibited passive, low-risk behaviors, spending most of the time on the “wall” position near the edges of the container. We postulated that Ae. aegypti has less ability to perceive cues from predation and could not successfully alter its behavior to reduce risk of predation risk compared with Ae. albopictus and An. sinensis. Our results suggest that Tx. splendens is a suitable biocontrol agent in controlling dengue hemorrhagic vector, Ae. aegypti.  相似文献   

Gelam honey inhibits lipopolysaccharide-induced endotoxemia in rats through the induction of heme oxygenase-1 and the inhibition of cytokines, nitric oxide, and high-mobility group protein B1     

Kassim M  Yusoff KM  Ong G  Sekaran S  Yusof MY  Mansor M 《Fitoterapia》2012,83(6):1054-1059

Malaysian Gelam honey has anti-inflammatory and antibacterial properties, a high antioxidant capacity, and free radical-scavenging activity. Lipopolysaccharide (LPS) stimulates immune cells to sequentially release early pro- and anti-inflammatory cytokines and induces the synthesis of several related enzymes. The aim of this study was to investigate the effect of the intravenous injection of honey in rats with LPS-induced endotoxemia. The results showed that after 4h of treatment, honey reduced cytokine (tumor necrosis factor-α, interleukins 1β, and 10) and NO levels and increased heme oxygenase-1 levels. After 24h, a decrease in cytokines and NO and an increase in HO-1 were seen in all groups, whereas a reduction in HMGB1 occurred only in the honey-treated groups. These results support the further examination of honey as a natural compound for the treatment of a wide range of inflammatory diseases.  相似文献   

Optimizing rice paddies’ lower greenhouse gas emissions and higher yield with SRI management under varying water table levels     

Hasanah  Nur Aini Iswati  Setiawan  Budi Indra  Arif  Chusnul  Widodo  Slamet  Uphoff  Norman 《Paddy and Water Environment》2019,17(3):485-495

Paddy and Water Environment - The System of Rice Intensification (SRI) is known as a climate-smart agricultural practice that increases rice production by changing the management of plants, soil,...  相似文献   

孟加拉国丘陵地带桔园和灌木林地土壤物理性质的比较评价(英文)     

Mohammad Shaheed Hossain Chowdhury  Md. Abdul Halim  Shampa Biswas  S. M. Sirajul Haque  Nur Muhammed  Masao Koike Assistant Commissioner  Magistrate  Office of the Deputy Commissioner  Jamalpur-  Bangladesh M. Sc. student in Mountain Forestry  University of Natural Resources  Applied Life Sciences-BOKU  Vienna  Austria Professor 《林业研究》2007,(3)

对孟加拉国丘陵地带Mro部落经营的桔园与灌木林35%和55%两种坡地土壤物理性质进行了比较与评价。每一块用地内挖掘3个土壤剖面采集不同深度(0-5cm,5-15cm and 15-30cm)的土壤样品,测定土壤水分、有机质含量和土壤密度。最大持水量、田间持水量、干或湿土壤容重和土壤孔隙度的测定仅限于表层土壤。两种坡地桔园3个深度的土壤水分含量均显著高于灌木林地相同深度的土壤水分。桔园在55%坡地内土壤有机质含量低于林地含量值,而在35%坡地内的含量值则高于林地值。两块样地内上述两项测定值均在表层土壤中最高,且随土层深度的增加而降低。与灌木林地比较,桔园地表层土壤最大持水量、孔隙度和3个不同深度的土壤密度均较低。两块用地内不同坡地的表层土田间持水量有所差异,且桔园地干或湿表层土壤容重高于林地内的数值。表5参23。  相似文献