Global patterns suggest that the large disparities between Thailand’s regions pose a significant challenge to the transition to a high-income economy

2019 ◽  
Keyword(s):  
High Income ◽  
Significant Challenge ◽  
Global Patterns

scholarly journals Global birdwatching data reveal uneven consequences of the COVID-19 pandemic

2021 ◽  
Author(s):  
Huijie Qiao ◽  
Michael Orr ◽  
Qinmin Yang ◽  
Xiangjiang Zhan ◽  
Fumin Lei ◽  
...  
Keyword(s):  
Developing Countries ◽  
Protected Areas ◽  
Citizen Science ◽  
Low Income ◽  
Bird Species ◽  
High Income ◽  
Space And Time ◽  
Global Patterns ◽  
Low Levels ◽  
Bird Distribution

Birdwatching is a global phenomenon involving many thousands of people. Citizen science generates data providing insights into global patterns of bird distribution across space and time, yet how the pandemic may cast a longer shadow remains unassessed. Here, we explore whether pandemic restrictions influenced observations globally from 2020-May 2021, considering also GDPc and tourism income. We analysed 10,338 bird species (93% of all bird species) and found that whilst high-income regions recover to pre-pandemic assessment rates quickly, middle and low-income regions remain at low levels. Furthermore, protected areas see huge losses in recorded richness. Whilst observer count increased overall, the number of bird species recorded dramatically decreased, especially in 2020. These trends are most marked in developing countries and regions, especially where tourism is important. Due to increased bushmeat consumption during the pandemic, some species may become more threatened, but with no data we cannot yet discern such trends.

SATUAN TIMBULAN DAN KOMPOSISI SAMPAH DOMESTIK KABUPATEN TANAH DATAR

Jurnal Dampak ◽  
2014 ◽  
Vol 11 (1) ◽  
pp. 28 ◽  
Author(s):  
Yommi Dewilda ◽  
Yeggi Darnas
Keyword(s):  
Low Income ◽  
High Income ◽  
Income Data

Penelitian ini bertujuan untuk mendapatkan data timbulan dan komposisi sampah domestik di Kabupaten Tanah Datar serta dapat membandingkan perbedaan timbulan dan komposisi sampah yang dihasilkan berdasarkan tingkat pendapatan masyarakat (High income, Medium income dan Low income). Data timbulan dan komposisi sampah diperlukan dalam perencanaan dan pengembangan sistem pengelolaan sampah. Sampling timbulan dan jumlah sampling dilakukan berdasarkan SNI 19-3964-1994. Hasil penelitian timbulan sampah domestik dalam satuan berat 0,232 kg/o/h dan dalam satuan volume 3,646 l/o/h. Berdasarkan tingkat pendapatan dalam satuan berat High Income (HI) 0,308 kg/o/h, Medium Income (MI) 0,198 kg/o/h dan Low Income (LI) 0,190 kg/o/h dalam satuan volume HI 4,269 l/o/h, MI 3,835 l/o/h dan LI 2,835 l/o/h. Timbulan sampah yang dihasilkan penduduk dengan High Incame lebih besar dibandingkan dengan penduduk dengan pendapatan Medium Income dan Low Income. Komposisi sampah domestik untuk sampah basah 75,5%; sampah plastik 16,6%; sampah kertas 5,3%; sampah tekstil 0,8%; sampah kayu 0,3%; sampah kaca 0,7%; sampah logam ferrous 0,2%; sampah logam non ferrous 0,1%; dan sampah lain-lain 0,5%.Kata kunci: sampah domestik, komposisi sampah, timbulan Sampah

Imine as a Linchpin Approach for Distal C(sp2)–H Functionalization

2020 ◽  
Author(s):  
Sukdev Bag ◽  
Sadhan Jana ◽  
Sukumar Pradhan ◽  
Suman Bhowmick ◽  
Nupur Goswami ◽  
...  
Keyword(s):  
Organic Molecules ◽  
Bond Activation ◽  
Bond Formation ◽  
Ancillary Ligand ◽  
Significant Challenge ◽  
Site Selectivity ◽  
Directing Group ◽  
Covalently Linked ◽  
Complex Organic ◽  
Post Functionalization

<p>Despite the widespread applications of C–H functionalization, controlling site selectivity remains a significant challenge. Covalently attached directing group (DG) served as an ancillary ligand to ensure proximal <i>ortho</i>-, distal <i>meta</i>- and <i>para</i>-C-H functionalization over the last two decades. These covalently linked DGs necessitate two extra steps for a single C–H functionalization: introduction of DG prior to C–H activation and removal of DG post-functionalization. We introduce here a transient directing group for distal C(<i>sp<sup>2</sup></i>)-H functionalization <i>via</i> reversible imine formation. By overruling facile proximal C-H bond activation by imine-<i>N</i> atom, a suitably designed pyrimidine-based transient directing group (TDG) successfully delivered selective distal C-C bond formation. Application of this transient directing group strategy for streamlining the synthesis of complex organic molecules without any necessary pre-functionalization at the distal position has been explored.</p>

Bringing Security to The Smallest Embedded Systems

2017 ◽  
Author(s):  
JOSEPH YIU
Keyword(s):  
Internet Of Things ◽  
Embedded Systems ◽  
Low Cost ◽  
Security Requirements ◽  
The Internet ◽  
Security Measures ◽  
Significant Challenge ◽  
Iot Devices

The increasing need for security in microcontrollers Security has long been a significant challenge in microcontroller applications(MCUs). Traditionally, many microcontroller systems did not have strong security measures against remote attacks as most of them are not connected to the Internet, and many microcontrollers are deemed to be cheap and simple. With the growth of IoT (Internet of Things), security in low cost microcontrollers moved toward the spotlight and the security requirements of these IoT devices are now just as critical as high-end systems due to:

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