July 1st Karnataka Mirror Current Affairs

Ayush Shetty Wins U.S. Open Badminton Championship

Achievement:

  • Ayush Shetty won the prestigious U.S. Open title at Council Bluffs, Iowa.
  • He became the first Indian to win a men’s singles title since Lakshya Sen’s 2023 Canada Open

Performance:

  • Known for consistent showing against top international players such as:
    • Loh Kean Yew
    • Kidambi Srikanth

Turning Point:

  • Moved from Karkala to Bengaluru at age 9 to pursue badminton professionally.
  • Trained under Krishna Kumar at SPORTS academy.

Training and Growth:

  • Mentored by:
    • Prakash Padukone Badminton Academy
    • Olympian Vimal Kumar
    • Coach Sagar Chopda
  • Notable milestones:
    • Bronze medal at 2023 World Junior Championships
    • Finalist at Asian Junior Championships
    • Strong performance in national challenge/senior international series

Quotes:

  • Sagar Chopda (Coach):
    • “Ayush is focused on reaching the top-10 in the world rankings.”

Ayush: Wants to use this win as a springboard to achieve greater success.

Liver Cancer Detection – IISc Innovation

1. Overview

  • Institution: Indian Institute of Science (IISc), Bengaluru.
  • Breakthrough: Development of a luminescent probe using terbium, a rare-earth metal.
  • Purpose: Detect presence of enzyme beta-glucuronidase, linked with liver and other cancers.

2. What is Beta-Glucuronidase?

  • An evolutionarily conserved enzyme found in various life forms.
  • Plays a role in breaking down glucuronic acid.
  • Linked with:
    • Cancers (liver, colon, breast, renal)
    • Infections (urinary tract, AIDS)

3. Innovation by IISc

  • Probe uses terbium ions embedded in a gel matrix from bile salts.
  • Detects fluorescence when exposed to beta-glucuronidase.
  • Molecule used: 2,3-DHN (2,3-dihydroxynaphthalene) masked with glucuronic acid.

4. Mechanism

  • Beta-glucuronidase cleaves glucuronic acid → releases 2,3-DHN.
  • 2,3-DHN absorbs energy and transfers it to terbium ions, producing bright green fluorescence.
  • This method improves clarity by reducing background noise.

5. Advantages

  • Simple paper-based sensor.
  • Cost-effective and easily accessible.
  • Suitable for resource-limited settings.
  • Can be visualized using UV lamp and smartphone.

6. Project Background

  • Initiated nearly a decade ago.
  • Rooted in long-term research on rare-earth metal fluorescence.

Led by Prof. Uday Maitra, Dept. of Organic Chemistry, IISc.

Black-Headed Caterpillar Infestation (Opisina arenosella)

Context:

  • Widespread infestation of Black-Headed Caterpillar is affecting coconut plantations across Karnataka.
  • CM Siddaramaiah has directed the Horticulture Department to submit an expert panel report and action plan.

Major Affected Districts:

  • Mandya,Tumakuru,Bengaluru Urban & Rural,Kolar,Mysuru,Chamarajanagar,Hassan

About the Pest:

  • Scientific Name: Opisina arenosella
  • Type: Moth species and major pest of coconut palms.
  • Region Found: India, Sri Lanka, Bangladesh, Myanmar, Indonesia (East Asia).

Nature of Damage:

  • Resides in silken galleries under coconut leaves.
  • Feeds on green leaf tissue, reducing photosynthesis.
  • Severe infestations can lead to up to 80% yield loss.
  • Affects farmer incomes and regional coconut economy.
  • Entire life cycle (larva to moth) is completed on coconut trees.
  • Spread: Wind dispersal of moths.

Control Measures:

  1. Neem-based pesticides – organic and eco-friendly.
  2. Root nourishment and Integrated Nutrient Management (INM) – for plant health.
  3. Biological control – release of Goniozus parasitoids, which target the caterpillar larvae.
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