Methylcyclohexane (MCH)-toluene (TOL) chemical hydride cycles as hydrogen carrier systems are successful with the selective dehydrogenation of MCH to TOL, which has been achieved only using precious Pt-based catalysts. Herein, we report improved selectivity using non-precious metal nickel-based bimetallic catalysts, where the second metal occupies the unselective step sites.

Because horizontal gene transfer can confound the recovery of the largely prokaryotic tree of life (ToL), most genome-based techniques seek to eliminate horizontal signal from ToL analyses, commonly by sieving out incongruent genes and data. This approach greatly limits the number of gene families analysed to a subset thought to be representative of vertical evolutionary history. However, forma...

Proyek pembangunan jalan tol merupakan proyek infrastruktur strategis, dikarenakan strategis Nasional sehingga pemerintah membuat Program Percepatan Pembangunan Jalan Tol sepanjang lebih kurang 1100 km agar dapat segera difungsikan
 Salah satu metode yang digunakan untuk melakukan analisa percepatan tersebut adalah Analisis Pertukaran Waktu dan Biaya (Time Cost Trade Off Analysis) diolah d...

For a long time, it was politically incorrect to speak about adaptation to climate change, because it presumably implies accepting defeat in the battle against evil emissions (Burton, 1994). This has changed, perhaps because scientists repeatedly pointed out that climate change cannot be altogether avoided even if we try very hard (Parry et al., 1998; Wigley, 1997), and perhaps because George W...

Telah dilakukan penelitian terhadap upaya identifikasi perilaku safety driving pada pengemudi yang melalui ruas jalan tol Pejagan – Pemalang. Hal ini untuk mengetahui pola berkendara terutama mengidentifikasikan pengaruh pemahaman aggressive driving. Metode digunakan adalah metode deskriptif kuantitatif dengan accidental sampling variabel bebas dan terikat aggresive Diperoleh nilai kekesatan To...

N-Aryl-S,S-dimethylsulfimides 3(Ar = 4-NO(2)C(6)H(4)), 4 (Ar = Ph) and 5 (Ar = 4-Tol)react with Appel salt 1 to give the corresponding N-aryl-(4-chloro-5H-1,2,3-dithiazolylidene)benzenamines 8 (Ar = 4-NO(2)C(6)H(4)), 9 (Ar = Ph) and 10 (Ar = 4-Tol) in 84, 94 and 87% yields, respectively. The reaction proceeds in the absence of base and a proposed reaction mechanism is given.

Pembangunan infrastruktur di Provinsi Sumatera Selatan semakin maju. Salah satunya dalam bidang transportasi yaitu pembangunan Jalan Tol Kayu Agung – Palembang Betung. jalan tol ini merupakan bagian untuk peningkatan kebutuhan akan prasarana raya Lintas sehingga diharapkan bisa mengatasi permasalahan kemacetan yang terjadi pada ruas utama. Adanya Trans dapat meningkatkan pertumbuhan ekonomi dae...

The concept of the TOL introduced by Darwin, captured in the famous single illustration of the On the Origin of Species (Darwin 1859), and used by Haeckel as the grand scheme of the history of the actual life-forms is the cornerstone of evolutionary biology and, arguably, of biology in general. For nearly 140 years after the publication of the Origin, phylogenetic trees, which were initially co...