10 research outputs found
Kelemahan Gen 12S RRNA Untuk Mempelajari Struktur Populasi Genus Aethalops (Chiroptera: Pteropodidae) Di Indonesia: Tanggapan Tulisan Maharadatunkamsi & M. Syamsul Arifin Zein Pada Jurnal Biologi Indonesia 4 (2): 75-86.
TULISAN PENDEKKelemahan Gen 12S rRNA Untuk Mempelajari Struktur Populasi GenusAethalops (Chiroptera: Pteropodidae) di Indonesia: Tanggapan TulisanMaharadatunkamsi & M. Syamsul Arifin Zein pada Jurnal BiologiIndonesia 4 (2): 75-86
Pencemaran Lingkungan oleh Adanya Proses B10metilasi Logam Berat
Air limbah industri yang dikeluarkan oleh proses-proses industriberbeda-heda dalam jumlah maupun kekuatan pencemaranoya,sesuai dengan satuan operasi atau proses yang merupakansumbernya. Dalam Ungkup sempit. air limbah buanganyang dapat dapat mengakibatkan pencemaran antara lain:buangan dari laboratorium kimia, yang di dalamnya terdapatlogam-Iogam herat, seperti air raksa, arsen. .Logam herat tersebut dapat berubah menjadi suatusenyawa metil dari logam herat yang sangat berbahaya bagikesehatan, baik dalam bentuk gas maupun cab". Proses 1nlterjadi dengan bantuan bakteri dalam kondisi anaerob karenadi dalam bakteri ada suatu koenzim metilkobalamin. Mekanismeperpindahan metil menjadi suatu senyawa metiI darilogam berat yang utama melalui: serangan elektrofilH: Fadaikatan Co-C (metilkobalamin) atau perpindahan CH3-, danserangan radikal bebas (CH3.).Agar hasil dari reaksi' di a tas tidak terjadi (da pa t dikurangi)diperlukan suatu teknik pembuangan, proses pengolahansedemikian rupa sehingga proses metilasi oleh bakteritidak dapat berlangsung. Misalnya, penghilangan ion-ionlogam berat sebelum dibuang ke lingkungan
Komunikasi Pendek/short Communication Anew Record of Gunda Ochracea Walker (Lepidoptera: Bombycidae) 1 From Gunung Halimun-salak National Park [Rekaman Baru Gunda Ochracea Walker (Lepidoptera: Bombycidae) Dari Taman Nasional Gunung Halimun-salak, Jawa Barat]
Gunda ochracea Walker (Lepidoptera: Bombycidae) in this report, has been recorded for the first time from Gunung Halimun-Salak National Park.So far,only G.javanica Moore is known to distribute in Java.A brief description and life pictures of a male and a female of Gunda ochracea are presented
New Host Record of the Yellow Steam Borer Moths, Scirpophaga Incertdas Shall (Lepidoptera: Pyralidae)
SHORT COMUNICATIONNew Host Record of The Yellow Steam Borer Moths, Scirpophagaincertdas Shall (Lepidoptera: Pyralidae
The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project
The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project
The PREDICTS project—Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)—has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used this evidence base to develop global and regional statistical models of how local biodiversity responds to these measures. We describe and make freely available this 2016 release of the database, containing more than 3.2 million records sampled at over 26,000 locations and representing over 47,000 species. We outline how the database can help in answering a range of questions in ecology and conservation biology. To our knowledge, this is the largest and most geographically and taxonomically representative database of spatial comparisons of biodiversity that has been collated to date; it will be useful to researchers and international efforts wishing to model and understand the global status of biodiversity