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  1 / 12310 MEDLINE  
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[PMID]:29252212
[Au] Autor:Khairani AZ; Ahmad NS; Khairani MZ
[Ad] Endereço:Ahmad Zamri Khairani, School of Educational Studies, 11800 Universiti Sains Malaysia, Penang, Malaysia, Ahmadzamri@usm.my.
[Ti] Título:Measuring Anger Types among Malaysian Adolescents using the Rasch Model.
[So] Source:J Appl Meas;18(4):449-458, 2017.
[Is] ISSN:1529-7713
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Adolescences is an important transitional phase in human development where they experience physiological as well as psychological changes. Nevertheless, these changes are often understood by teachers, parents, and even the adolescents themselves. Thus, conflicts exist and adolescents are affected from the conflict physically and emotionally. An important state of emotions that result from this conflict is anger. This article describes the development and validation of the 34-item Adolescent Anger Inventory (AAI) to measure types of anger among Malaysian adolescents. A sample of 2,834 adolescents in secondary school who provide responses that were analyzed using Rasch model measurement framework. The 4 response category worked satisfactorily for the scale developed. A total of 11 items did not fit to the model's expectations, and thus dropped from the final scale. The scale also demonstrated satisfactory reliability and separation evidence. Also, items in the AAI depicted no evidence of DIF between 14- and 16-year-old adolescents. Nevertheless, the AAI did not have sufficient items to target adolescents with a high level of physical aggressive anger.
[Mh] Termos MeSH primário: Ira
Interpretação Estatística de Dados
Avaliação Educacional/métodos
Modelos Estatísticos
Psicometria/métodos
Inquéritos e Questionários
[Mh] Termos MeSH secundário: Adolescente
Algoritmos
Simulação por Computador
Seres Humanos
Malásia/epidemiologia
Masculino
Prevalência
Reprodutibilidade dos Testes
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171219
[St] Status:MEDLINE


  2 / 12310 MEDLINE  
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[PMID]:28743033
[Au] Autor:Yahya P; Sulong S; Harun A; Wan Isa H; Ab Rajab NS; Wangkumhang P; Wilantho A; Ngamphiw C; Tongsima S; Zilfalil BA
[Ad] Endereço:Department of Paediatric, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, 16150 Kelantan, Malaysia.
[Ti] Título:Analysis of the genetic structure of the Malay population: Ancestry-informative marker SNPs in the Malay of Peninsular Malaysia.
[So] Source:Forensic Sci Int Genet;30:152-159, 2017 09.
[Is] ISSN:1878-0326
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Malay, the main ethnic group in Peninsular Malaysia, is represented by various sub-ethnic groups such as Melayu Banjar, Melayu Bugis, Melayu Champa, Melayu Java, Melayu Kedah Melayu Kelantan, Melayu Minang and Melayu Patani. Using data retrieved from the MyHVP (Malaysian Human Variome Project) database, a total of 135 individuals from these sub-ethnic groups were profiled using the Affymetrix GeneChip Mapping Xba 50-K single nucleotide polymorphism (SNP) array to identify SNPs that were ancestry-informative markers (AIMs) for Malays of Peninsular Malaysia. Prior to selecting the AIMs, the genetic structure of Malays was explored with reference to 11 other populations obtained from the Pan-Asian SNP Consortium database using principal component analysis (PCA) and ADMIXTURE. Iterative pruning principal component analysis (ipPCA) was further used to identify sub-groups of Malays. Subsequently, we constructed an AIMs panel for Malays using the informativeness for assignment (I ) of genetic markers, and the K-nearest neighbor classifier (KNN) was used to teach the classification models. A model of 250 SNPs ranked by I , correctly classified Malay individuals with an accuracy of up to 90%. The identified panel of SNPs could be utilized as a panel of AIMs to ascertain the specific ancestry of Malays, which may be useful in disease association studies, biomedical research or forensic investigation purposes.
[Mh] Termos MeSH primário: Grupos Étnicos/genética
Genética Populacional
Polimorfismo de Nucleotídeo Único
[Mh] Termos MeSH secundário: Impressões Digitais de DNA
Genótipo
Seres Humanos
Malásia
Análise de Componente Principal
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1710
[Cu] Atualização por classe:180222
[Lr] Data última revisão:
180222
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170726
[St] Status:MEDLINE


  3 / 12310 MEDLINE  
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[PMID]:28463716
[Au] Autor:Sinniah A; Oei TPS; Maniam T; Subramaniam P
[Ad] Endereço:Universiti Kebangsaan Malaysia Medical Centre, Malaysia; University of Queensland, Australia.
[Ti] Título:Positive effects of Individual Cognitive Behavior Therapy for patients with unipolar mood disorders with suicidal ideation in Malaysia: A randomised controlled trial.
[So] Source:Psychiatry Res;254:179-189, 2017 Aug.
[Is] ISSN:1872-7123
[Cp] País de publicação:Ireland
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to investigate the effectiveness of Individual Cognitive Behavior Therapy (ICBT) in treating patients with mood disorders with suicidal ideation. A total of 69 patients (48 females, 21 males) with the diagnoses above were randomly allocated to either the group of Treatment As Usual (TAU)+ICBT (n=33) or the TAU group (n=36). All participants completed the Beck Depression Inventory (BDI), Beck Scale for Suicide Ideation (BSS), Positive and Negative Suicide Ideation Inventory (PANSI), Beck Hopelessness Scale (BHS), and Depression Anxiety Stress Scale-21 (DASS-21). These questionnaires were administered at pre-treatment, midway through treatment (week 4), post-treatment (week 8), and at follow-ups after three months (week 20) and six months (week 32). Factorial ANOVA results showed that the TAU+ICBT patients improved significantly and at faster rate as compared to the TAU group, which showed improvement only from pre to mid treatment on DASS-D and BHS-T measures. The effect size (Cohen's d), for the TAU+ICBT group showed large effect (1.47) for depressive symptoms and suicidal ideation (1.00). These findings suggest that ICBT used in addition to the TAU, was effective in enhancing treatment outcome of patients with unipolar mood disorders as well as, reducing risk for suicide behavior.
[Mh] Termos MeSH primário: Terapia Cognitiva/métodos
Transtorno Depressivo/psicologia
Transtorno Depressivo/terapia
Transtornos do Humor/psicologia
Transtornos do Humor/terapia
Ideação Suicida
[Mh] Termos MeSH secundário: Adulto
Idoso
Transtorno Depressivo/epidemiologia
Feminino
Seguimentos
Seres Humanos
Malásia/epidemiologia
Meia-Idade
Transtornos do Humor/epidemiologia
Escalas de Graduação Psiquiátrica
Resultado do Tratamento
[Pt] Tipo de publicação:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180206
[Lr] Data última revisão:
180206
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170503
[St] Status:MEDLINE


  4 / 12310 MEDLINE  
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[PMID]:29351305
[Au] Autor:Islam KMM; Asadullah MN
[Ad] Endereço:Faculty of Economics and Administration, University of Malaya, Kuala Lumpur, Malaysia.
[Ti] Título:Gender stereotypes and education: A comparative content analysis of Malaysian, Indonesian, Pakistani and Bangladeshi school textbooks.
[So] Source:PLoS One;13(1):e0190807, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Using government secondary school English language textbooks from Malaysia, Indonesia, Pakistan and Bangladesh, we conducted a quantitative content analysis in order to identify gender stereotypes in school education. In total, 21 categories of exclusion and quality of representation were used to study gender stereotypes. Our analysis confirms a pro-male bias in textbooks: the aggregate female share is 40.4% in textual and pictorial indicators combined. Female occupations are mostly traditional and less prestigious while the characters are predominantly introverted and passive in terms of personality traits. Women are also shown to be mostly involved in domestic and in-door activities while men have a higher presence in professional roles. Systematic underrepresentation of females is evident regardless of whether we look at the text or pictures. A cross-country analysis shows that the female share in picture content is only 35.2% in Malaysia and Bangladesh. Overall, the proportion of female to male characters (text and pictures combined) is balanced in Malaysia and Indonesia (44.4% and 44.1% respectively) while this share is only 24.4% and 37.3% in Pakistani and Bangladeshi textbooks respectively. The finding of underrepresentation of women in Pakistani textbooks, in terms of quality and quantity, is robust to the selection of province-, grade- and subject-specific textbooks, as well as the range and type of categories used.
[Mh] Termos MeSH primário: Instituições Acadêmicas
Sexismo
Livros de Texto como Assunto
[Mh] Termos MeSH secundário: Bangladesh
Currículo
Educação
Feminino
Seres Humanos
Indonésia
Islamismo
Malásia
Masculino
Paquistão
Sexismo/estatística & dados numéricos
Mudança Social
Classe Social
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; REVIEW
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180205
[Lr] Data última revisão:
180205
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180120
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190807


  5 / 12310 MEDLINE  
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[PMID]:28449659
[Au] Autor:Ralph AP; Rashid Ali MRS; William T; Piera K; Parameswaran U; Bird E; Wilkes CS; Lee WK; Yeo TW; Anstey NM
[Ad] Endereço:Global and Tropical Health Division, Menzies School of Health Research, Charles Darwin University, PO Box 41096, Casuarina, NT, 0811, Australia. anna.ralph@menzies.edu.au.
[Ti] Título:Vitamin D and activated vitamin D in tuberculosis in equatorial Malaysia: a prospective clinical study.
[So] Source:BMC Infect Dis;17(1):312, 2017 04 27.
[Is] ISSN:1471-2334
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Vitamin D deficiency (low plasma 25-hydroxyvitamin D [25D] concentration) is often reported in tuberculosis. Adjunctive vitamin D has been tested for its potential to improve treatment outcomes, but has proven largely ineffective. To better understand vitamin D in tuberculosis, we investigated determinants of 25D and its immunologically active form, 1,25-dihydroxyvitamin D (1,25D), their inter-relationship in tuberculosis, longitudinal changes and association with outcome. METHODS: In a prospective observational study of adults with smear-positive pulmonary tuberculosis in Sabah, Malaysia, we measured serial 25D, 1,25D, vitamin D-binding protein (VDBP), albumin, calcium, parathyroid hormone, chest x-ray, week 8 sputum smear/culture and end-of-treatment outcome. Healthy control subjects were enrolled for comparison. RESULTS: 1,25D was elevated in 172 adults with tuberculosis (mean 229.0 pmol/L, 95% confidence interval: 215.4 - 242.6) compared with 95 controls (153.9, 138.4-169.4, p < 0.001), directly proportional to radiological severity (p < 0.001), and fell rapidly within one week of treatment commencement. Tuberculosis patients with higher baseline 1,25D achieved significantly higher percentage weight gain over time, including when controlling for baseline weight, however persistently elevated 1,25D was associated with worse residual x-ray changes and lower end-of-treatment BMI. 1,25D was inversely associated with PTH (p < 0.001), consistent with the extra-renal origin of the 1,25D. 25D did not differ between tuberculosis patients (mean 63.9 nmol/L, 95% CI: 60.6 - 67.3) and controls (61.3, 57.2- 65.3, p = 0.24), and was unassociated with outcomes. Among tuberculosis patients in multivariable analyses, sex, age and VDBP were associated with 25D, and age and albumin with 1,25D. 1,25-dihydroxyvitamin was not significantly asscociated with 25D. Vitamin D deficiency <25 nmol/L was uncommon, occurring in only five TB patients; 1,25D was elevated in three of them. CONCLUSIONS: In an equatorial setting, high extra-renal production of 1,25D was seen in tuberculosis, including in individuals with 25D in the deficient range; however, severe 25D deficiency was uncommon. Baseline elevation of 1,25D, a marker of macrophage activation, was associated with better weight gain but persistent elevation of 1,25D was associated with worse radiological and BMI outcomes. 1,25D warrants testing in larger datasets including TB patients less responsive to treatment, such as multi-drug resistant TB, to test its utility as a marker of tuberculosis severity and treatment response.
[Mh] Termos MeSH primário: Tuberculose Pulmonar/sangue
Tuberculose Pulmonar/tratamento farmacológico
Vitamina D/análogos & derivados
[Mh] Termos MeSH secundário: Adolescente
Adulto
Idoso
Estudos de Casos e Controles
Feminino
Seres Humanos
Malásia
Masculino
Meia-Idade
Hormônio Paratireóideo/sangue
Estudos Prospectivos
Resultado do Tratamento
Tuberculose Pulmonar/complicações
Vitamina D/sangue
Deficiência de Vitamina D/sangue
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; OBSERVATIONAL STUDY; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Parathyroid Hormone); 1406-16-2 (Vitamin D); 64719-49-9 (25-hydroxyvitamin D); 66772-14-3 (1,25-dihydroxyvitamin D)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:180120
[Lr] Data última revisão:
180120
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE
[do] DOI:10.1186/s12879-017-2314-z


  6 / 12310 MEDLINE  
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[PMID]:29232405
[Au] Autor:Phon CK; Kirton LG; Yusoff NR
[Ad] Endereço:Tropical Forest Biodiversity Centre, Forest Research Institute Malaysia (FRIM), Kepong, Selangor, Malaysia.
[Ti] Título:Monitoring butterflies using counts of puddling males: A case study of the Rajah Brooke's Birdwing (Trogonoptera brookiana albescens).
[So] Source:PLoS One;12(12):e0189450, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The Rajah Brooke's Birdwing, Trogonoptera brookiana, is a large, iconic butterfly that is facing heavy commercial exploitation and habitat loss. Males of some subspecies exhibit puddling behavior. A method of conservation monitoring was developed for subspecies albescens in Ulu Geroh, Peninsular Malaysia, where the males consistently puddle in single-species aggregations at stable geothermal springs, reaching well over 300 individuals when the population is at its highest. Digital photography was used to conduct counts of numbers of males puddling. The numbers of birdwings puddling were significantly correlated with counts of birdwings in flight, but were much higher. The numbers puddling during the peak hour were correlated with numbers puddling throughout the day and could be predicted using the numbers puddling at an alternative hour, enabling flexibility in the time of counts. Average counts for three images taken at each puddle at three peak hours between 1400-1600 hours over 2-3 days were used as a monthly population index. The numbers puddling were positively associated with higher relative humidity and brightness during monitoring hours. Monthly counts of birdwings from monitoring of puddles over a period of two years are presented. The minimum effort required for a monitoring program using counts of puddling males is discussed, as well as the potential of using the method to monitor other species of puddling butterflies.
[Mh] Termos MeSH primário: Borboletas
[Mh] Termos MeSH secundário: Animais
Conservação dos Recursos Naturais
Malásia
Masculino
Densidade Demográfica
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180104
[Lr] Data última revisão:
180104
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171213
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189450


  7 / 12310 MEDLINE  
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[PMID]:28898466
[Au] Autor:Andrew J; Ismail NW; Djama M
[Ad] Endereço:Institute of Agricultural and Food Policy Studies, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.
[Ti] Título:An overview of genetically modified crop governance, issues and challenges in Malaysia.
[So] Source:J Sci Food Agric;98(1):12-17, 2018 Jan.
[Is] ISSN:1097-0010
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The application of agricultural biotechnology attracts the interest of many stakeholders. Genetically modified (GM) crops, for example, have been rapidly increasing in production for the last 20 years. Despite their known benefits, GM crops also pose many concerns not only to human and animal health but also to the environment. Malaysia, in general, allows the use of GM technology applications but it has to come with precautionary and safety measures consistent with the international obligations and domestic legal frameworks. This paper provides an overview of GM crop technology from international and national context and explores the governance and issues surrounding this technology application in Malaysia. Basically, GM research activities in Malaysia are still at an early stage of research and development and most of the GM crops approved for release are limited for food, feed and processing purposes. Even though Malaysia has not planted any GM crops commercially, actions toward such a direction seem promising. Several issues concerning GM crops as discussed in this paper will become more complex as the number of GM crops and varieties commercialised globally increase and Malaysia starts to plant GM crops. © 2017 Society of Chemical Industry.
[Mh] Termos MeSH primário: Produção Agrícola/legislação & jurisprudência
Produtos Agrícolas/genética
Alimentos Geneticamente Modificados/normas
Plantas Geneticamente Modificadas/genética
[Mh] Termos MeSH secundário: Segurança de Produtos ao Consumidor
Produção Agrícola/organização & administração
Produção Agrícola/normas
Produtos Agrícolas/química
Produtos Agrícolas/metabolismo
Alimentos Geneticamente Modificados/economia
Seres Humanos
Malásia
Plantas Geneticamente Modificadas/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180102
[Lr] Data última revisão:
180102
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170913
[St] Status:MEDLINE
[do] DOI:10.1002/jsfa.8666


  8 / 12310 MEDLINE  
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[PMID]:28542807
[Au] Autor:Thong KL; Tan LK; Ooi PT
[Ad] Endereço:Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.
[Ti] Título:Genetic diversity, virulotyping and antimicrobial resistance susceptibility of Yersinia enterocolitica isolated from pigs and porcine products in Malaysia.
[So] Source:J Sci Food Agric;98(1):87-95, 2018 Jan.
[Is] ISSN:1097-0010
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The objectives of the present study were to determine the antimicrobial resistance, virulotypes and genetic diversity of Yersinia enterocolitica isolated from uncooked porcine food and live pigs in Malaysia. RESULTS: Thirty-two non-repeat Y. enterocolitica strains of three bioserotypes (3 variant/O:3, n = 27; 1B/O:8, n = 3; 1A/O:5, n = 2) were analysed. Approximately 90% of strains were multidrug-resistant with a multiple antibiotic resistance index < 0.2 and the majority of the strains were resistant to nalidixic acid, clindamycin, ampicillin, ticarcillin, tetracycline and amoxicillin. Yersinia enterocolitica could be distinguished distinctly into three clusters by pulsed-field gel electrophoresis, with each belonging to a particular bioserotype. Strains of 3 variant/O:3 were more heterogeneous than others. Eleven of the 15 virulence genes tested (hreP, virF, rfbC, myfA, sat, inv, ail, ymoA, ystA, tccC, yadA) and pYV virulence plasmid were present in all the bioserotpe 3 variant/03 strains. CONCLUSION: The occurrence of virulent strains of Y. enterocolitica in pigs and porcine products reiterated that pigs are important reservoirs for Y. enterocolitica. The increasing trend of multidrug resistant strains is a public health concern. This is the first report on the occurrence of potential pathogenic and resistant strains of Y. enterocolitica in pigs in Malaysia. © 2017 Society of Chemical Industry.
[Mh] Termos MeSH primário: Antibacterianos/farmacologia
Produtos da Carne/microbiologia
Doenças dos Suínos/microbiologia
Yersiniose/veterinária
Yersinia enterocolitica/efeitos dos fármacos
Yersinia enterocolitica/genética
[Mh] Termos MeSH secundário: Animais
Farmacorresistência Bacteriana
Variação Genética
Malásia
Produtos da Carne/análise
Suínos
Virulência
Yersiniose/microbiologia
Yersinia enterocolitica/isolamento & purificação
Yersinia enterocolitica/patogenicidade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180102
[Lr] Data última revisão:
180102
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170526
[St] Status:MEDLINE
[do] DOI:10.1002/jsfa.8442


  9 / 12310 MEDLINE  
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[PMID]:28749031
[Au] Autor:Yeoh SH; Satake A; Numata S; Ichie T; Lee SL; Basherudin N; Muhammad N; Kondo T; Otani T; Hashim M; Tani N
[Ad] Endereço:Faculty of Science, Institute of Biological Sciences, University of Malaya, Kuala Lumpur, Malaysia.
[Ti] Título:Unravelling proximate cues of mass flowering in the tropical forests of South-East Asia from gene expression analyses.
[So] Source:Mol Ecol;26(19):5074-5085, 2017 Oct.
[Is] ISSN:1365-294X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Elucidating the physiological mechanisms of the irregular yet concerted flowering rhythm of mass flowering tree species in the tropics requires long-term monitoring of flowering phenology, exogenous and endogenous environmental factors, as well as identifying interactions and dependencies among these factors. To investigate the proximate factors for floral initiation of mast seeding trees in the tropics, we monitored the expression dynamics of two key flowering genes, meteorological conditions and endogenous resources over two flowering events of Shorea curtisii and Shorea leprosula in the Malay Peninsula. Comparisons of expression dynamics of genes studied indicated functional conservation of FLOWERING LOCUS T (FT) and LEAFY (LFY) in Shorea. The genes were highly expressed at least 1 month before anthesis for both species. A mathematical model considering the synergistic effect of cool temperature and drought on activation of the flowering gene was successful in predicting the observed gene expression patterns. Requirement of both cool temperature and drought for floral transition suggested by the model implies that flowering phenologies of these species are sensitive to climate change. Our molecular phenology approach in the tropics sheds light on the conserved role of flowering genes in plants inhabiting different climate zones and can be widely applied to dissect the flowering processes in other plant species.
[Mh] Termos MeSH primário: Dipterocarpaceae/genética
Flores/fisiologia
Proteínas de Plantas/genética
[Mh] Termos MeSH secundário: Mudança Climática
Dipterocarpaceae/fisiologia
Secas
Flores/genética
Florestas
Regulação da Expressão Gênica de Plantas
Malásia
Modelos Teóricos
Temperatura Ambiente
Fatores de Transcrição/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 0 (Transcription Factors)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171220
[Lr] Data última revisão:
171220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170728
[St] Status:MEDLINE
[do] DOI:10.1111/mec.14257


  10 / 12310 MEDLINE  
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[PMID]:28460878
[Au] Autor:Rozaimi M; Fairoz M; Hakimi TM; Hamdan NH; Omar R; Ali MM; Tahirin SA
[Ad] Endereço:School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia. Electronic address: mdrozaimi@ukm.edu.my.
[Ti] Título:Carbon stores from a tropical seagrass meadow in the midst of anthropogenic disturbance.
[So] Source:Mar Pollut Bull;119(2):253-260, 2017 Jun 30.
[Is] ISSN:1879-3363
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Seagrass meadows provide important carbon sequestration services but anthropogenic activities modify the natural ecosystem and inevitably lower carbon storage capacity. The tropical mixed-species meadows in the Sungai Pulai Estuary (Johor, Malaysia) are impacted by such activities. In this study, we provide baseline estimates for carbon stores analysed from sediment cores. In sediment depths up to 100cm, organic (OC) and inorganic carbon (IC) stores were 43-101MgCha and 46-83MgCha , respectively, and are in the lower end of global average values. The bulk of OC (53-98%) originated from seston suggesting that the meadows had low capacity to retain seagrass-derived organic matter. The species factor resulted in some variability in OC stores but did not appear to influence IC values. The low carbon stores in the meadow may be a direct result of sediment disturbances but natural biogeochemical processes are not discounted as possible causal factors.
[Mh] Termos MeSH primário: Carbono/análise
Pradaria
[Mh] Termos MeSH secundário: Sequestro de Carbono
Ecossistema
Sedimentos Geológicos
Malásia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
7440-44-0 (Carbon)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171220
[Lr] Data última revisão:
171220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170503
[St] Status:MEDLINE



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BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde