25 research outputs found

    Perkembangan larva Tramea transmarina euryale Selys, 1878 (Insecta: Odonata)

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    Kajian ini bertujuan untuk merekodkan perkembangan larva spesies Tramea transmarina euryale Selys, 1878. Telur T. transmarina euryale dieram di makmal hingga kemunculan larva. Telur dikutip daripada individu betina yang sedang bertelur di sebuah kolam di Universiti Kebangsaan Malaysia, Kampus Bangi, Selangor, Malaysia. Telur yang segar kelihatan berwarna kuning dengan purata panjang 0.46±0.01 mm dan purata lebar 0.37±0.01 mm. Tempoh pengeraman telur memerlukan sekurang-kurangnya tujuh hari. Perkembangan larva T. transmarina euryale mengandungi 12–14 stadia. Sarung sayap asas mula muncul pada peringkat instar ke-7. Larva berubah menjadi warna kuning kehijauan pada beberapa peringkat instar terakhir. Secara keseluruhannya, perkembangan larva mengambil masa 50–62 hari untuk dilengkapkan. Tempoh perkembangan larva spesies T. transmarina euryale adalah pendek jika dibandingkan dengan spesies Libellulidae yang lain. Maklumat perkembangan larva hingga ke peringkat dewasa T. transmarina euryale ini adalah penting bagi tujuan pembiakan dan pemuliharaannya serta potensinya untuk diaplikasi sebagai agen kawalan biologi. Kata kunci: Instar, larva, Libellulidae, pepatung, stadia, telur

    Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

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    Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

    DNA polymorphisms in the study of relationships and evolution in Capsicum

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    SIGLEAvailable from British Library Document Supply Centre-DSC:DXN022636 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

    Odonata (insecta) fauna of Taman Negara National Park, Malaysia

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    Taman Negara National Park is divided into three parts according to states – Taman Negara Pahang, Taman Negara Kelantan and Taman Negara Terengganu. In this study we present the records of Odonata collected at Kuala Kelapoh, Taman Negara Pahang and Gua Bewah, Taman Negara Terengganu. A total of 61 species were recorded from Kuala Kelapoh and 52 species from Gua Bewah. Of these 46 species are the new records for Taman Negara National Park. The high number of new records in this study indicates the Odonata fauna of Taman Negara National Park was not well studied. Notable records from the study include Coeliccia sameerae, Phyllothemis raymondi and Rhinocypha pelops. The records from Kuala Kelapoh and Gua Bewah are combined with the existing records in literature to produce a checklist of the Odonata for Taman Negara National Park with 101 species from 15 families

    Study on male secondary genitalia of seven species of orthetrum newman (Odonata: Libellulidae) in Peninsular Malaysia

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    Seven Orthetrum Newman, 1833 species occurring in Peninsular Malaysia have been described, in this paper we focus on describing the details of male secondary genitalia of the seven Orhetrum species i.e. anterior lamina, hamule and vesica spermalis. The structure of anterior lamina and its setae are good taxonomic characters to distinguish the Orthetrum species
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