Siddha Medicine
Why in News: According to a recent study, a combination of ‘Siddha’ medicines has the potential to alleviate anaemia in adolescent girls.
About Siddha Medicine 🌿
- Ancient Healing System: Siddha medicine is a traditional healing system that originated in South India, considered one of the oldest medical systems in India. 🏛️
- Historical Roots: Literary evidence from the Sangam Era dates the origin of the Siddha system to around 10,000 BC. 📜
- Developed by Siddhars: The Siddha system is founded on the work of Siddhars, primarily from Tamil Nadu. These spiritual masters possessed eight special abilities, known as siddhis. Notable Siddhars include Nandi, Agasthyar, Agappai, and Pumbatti. 🌟
- Founder Agastyar: The Siddha medical system is believed to have been started by Agastyar (also known as Agasthya), a renowned Siddhar. 🙏
- Tradition of Learning: In rural India, Siddhars have passed down their knowledge through generations, with younger members learning from elders in the community. 👨🏫👩🏫
- Integrated Approach: Siddha medicine combines ancient medicinal practices with spiritual disciplines, alchemy, and mysticism to provide holistic healing. 🧘♂️⚗️
- Holistic Patient Care: The system focuses not just on treating diseases but also considers factors like the patient’s behaviour, environment, age, habits, and physical condition. 👩⚕️🌍
- Philosophical Principles: The Siddha system is based on the principles of Panchamahabhootam (five basic elements), 96 Thathuvas (principles), Mukkuttram (three humours), and six Arusuvai (tastes). 🌿🍲
- Elements in Healing: Practitioners believe that the five elements (soil, fire, water, sky, air) exist in all things, including food, human humours, and substances like sulphur and mercury. These elements have therapeutic properties useful in treating various illnesses. 🌱🔥💧☁️💨
Will Turkey’s Bid to Join BRICS Speed Up EU Accession?
Why in News
Turkey has officially applied to join BRICS, a group of emerging economies led by Brazil, Russia, India, China, and South Africa. This move raises questions about whether Turkey is shifting away from its EU ambitions or using BRICS membership as leverage in its stalled EU accession process.
Key Points
- BRICS Membership as Leverage: Turkey’s interest in joining BRICS is seen by some experts as a reaction to frustrations over the slow progress in its EU accession process. Ankara has faced roadblocks, including concerns about media freedom, judiciary independence, and security reforms.
- Political Pressure on EU: Turkey may be using the BRICS bid to apply pressure on the EU, signaling its ability to forge alternative alliances. However, Turkey’s EU accession process, stalled since 2018, requires concrete reforms rather than geopolitical bargaining, as per EU officials.
- BRICS vs EU Alignment: While BRICS aims at economic cooperation, Turkey’s accession to the EU demands alignment with EU values, including a commitment to democratic principles and security policies. Turkey’s strained relationship with the EU, especially over its low alignment with the EU’s Common Foreign and Security Policy, complicates its prospects for EU membership.
- Risk of Backfiring: Experts caution that joining BRICS could further alienate Turkey from the EU and NATO allies, especially given the Western bloc’s suspicions of Turkey’s growing ties with Russia and non-alignment in key geopolitical issues.
- Strategic Significance of Turkey: Despite concerns over Turkey’s foreign policy decisions, its strategic position between Europe and Asia makes it a critical ally for both the EU and NATO. However, mistrust between Turkey and its Western allies persists, and this move towards BRICS may deepen the divide.
Food vs Cars: A Looming Dilemma for Agriculture
Context
The diversion of phosphoric acid, an essential component of fertilisers like di-ammonium phosphate (DAP), towards the production of electric vehicle (EV) batteries is raising concerns for Indian agriculture, which heavily relies on imported nutrients.
Traditional Food vs Fuel Debate
The “food versus fuel” debate has long centered on the diversion of crops like sugarcane, rice, maize, and soybean oil for ethanol and biodiesel production, affecting the availability of food resources.
Emerging Food vs Cars Issue
- Phosphoric Acid for EV Batteries: Phosphoric acid, crucial for DAP fertiliser production, is now being used in lithium-iron-phosphate (LFP) batteries for electric vehicles. LFP batteries accounted for over 40% of global EV demand in 2023, compared to just 6% in 2020.
- Phosphorous (P) in Agriculture: DAP, the second most consumed fertiliser in India, contains 46% phosphorus (P), vital for early-stage crop growth. This phosphorus comes from phosphoric acid, sourced from rock phosphate.
- Global Supply and India’s Dependence: India imports over half of its DAP and phosphoric acid from countries like China, Morocco, and Russia. In 2022-23, these imports totaled over $10 billion.
- China’s Shift: China, one of India’s largest DAP suppliers, is diverting its phosphoric acid towards LFP battery production, creating a shortage of phosphoric acid for fertiliser production.
- EV Battery Trends: LFP batteries, although less energy-dense, are more cost-effective, long-lasting, and safer than nickel-based batteries. These qualities are driving their global adoption, especially in China.
- With increasing demand for LFP batteries, the supply of phosphoric acid for fertilisers could be impacted globally, exacerbating the food vs cars dilemma.
Implications for India
- Impact on DAP Availability: India’s DAP imports in 2024 fell by 51% compared to the same period in 2023, largely due to China’s export restrictions.
- Farmers’ Challenges: Farmers may have to rely on alternative fertilisers with less phosphorus content, which could affect crop yields and nutrient use efficiency.
Way Forward for India
- Policy Considerations: India’s fertiliser policy, including the pricing and subsidy structure, needs to address the growing cost and scarcity of DAP. Encouraging the use of complex fertilisers with lower phosphorus content may be a sustainable solution.
- Alternative Strategies: With limited reserves of rock phosphate and other essential nutrients, India must focus on fertilisers with higher nutrient use efficiency, reducing its dependence on imported DAP.
The Link Between Dyslexia and the Thalamus in the Human Brain
Context
Dyslexia, a common learning disorder affecting 5%-10% of the global population, presents lifelong challenges for reading and writing. Individuals with dyslexia may struggle with letter omission, word swapping, and legibility issues, impacting various aspects of their academic and personal lives. Despite its prevalence, dyslexia is often misunderstood and carries social stigma, though it does not reflect a person’s intellectual or creative abilities. Recent research has begun to uncover the neurological basis of dyslexia, offering new insights into potential treatments.
Dyslexia Overview
- Prevalence: Affects about 5%-10% of the global population, making it the most common learning disorder.
- Symptoms: Includes difficulties with reading and writing, such as omitting or swapping letters, syllables, or words, and challenges with legibility and mistake detection.
- Demographics: Symptoms can appear as early as infancy, with boys being affected 2-3 times more often than girls. Dyslexia can impact various subjects and persists throughout life. Notably, it does not correlate with intellect or creativity.
New Research Insights
- Visual Thalamus Role: Researchers from Dresden, Germany, have identified a link between dyslexia and changes in the visual thalamus, a key brain region connecting the eyes with the cerebral cortex. This area is crucial for processing visual information and integrating it with cognitive functions.
- Brain Regions: The visual thalamus consists of two parts: one large part processes colors, while the smaller part, responsible for recognizing movement and rapid changes, is the focus of dyslexia-related changes.
Research Methodology
- Advanced Imaging: Using a specialized MRI system at the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, researchers studied the visual thalamus in greater detail than conventional MRI allows.
- Findings: Changes were observed in the movement-sensitive part of the visual thalamus in individuals with dyslexia, particularly in males. The study included 25 dyslexic individuals and 24 control subjects.
Implications for Treatment
- Potential Therapies: The study suggests that these findings could lead to new treatments and therapies, such as non-invasive neurostimulation techniques. These could modulate the activity of the affected brain regions to alleviate dyslexia symptoms.
- Future Research: Understanding the specific brain mechanisms involved in dyslexia opens new avenues for targeted interventions. This approach could improve support and treatment options for individuals with dyslexia.