Core Viewpoint - The impending arrival of Typhoon "Hagupit" is causing panic buying in Guangdong, leading to a significant depletion of essential supplies, with only chili peppers remaining on the shelves [1][3][7]. Group 1: Consumer Behavior - Consumers in Guangdong are exhibiting panic buying behavior, resulting in the near-total depletion of grocery items, with only chili peppers left unsold [1][3]. - A local resident, Ms. Wu, reported that upon visiting the supermarket, she found all vegetables sold out except for chili peppers, indicating a shift in consumer purchasing priorities [3][7]. - The trend of buying non-perishable items, such as instant noodles, has also been noted, with only spicy flavors remaining available [7]. Group 2: Preparedness and Response - Residents are taking the threat of the typhoon seriously, with many starting to stock up on supplies two days in advance of the storm's expected landfall [7]. - Despite the current calm weather, there is a sense of unease among the local population, as they anticipate the storm's impact [9].

Core Insights - The retail industry is facing unprecedented challenges, including declining foot traffic, inventory buildup, and shrinking profit margins, with 62% of retail companies experiencing stagnation in growth [1] - Identifying core products and leveraging the "Cross Ratio" (CR) is essential for retailers to achieve sales and profit breakthroughs amidst these challenges [1][2] What is Cross Ratio - Cross Ratio (CR) is a tool to identify more profitable products, combining gross margin and inventory turnover to assess product profitability and capital efficiency [2][3] - CR is calculated as: CR = Gross Margin (%) × Inventory Turnover Rate [3] Significance of Cross Ratio - A higher CR indicates greater returns on inventory investment, highlighting the comprehensive value of a product [4] How to Use Cross Ratio for Product Selection - Focus on high CR products and optimize low CR products through data-driven adjustments [5] - Steps include: 1. Replace low CR products and streamline SKUs based on defined evaluation periods and benchmarks [5][6] 2. Classify products in the evaluation list to avoid blind elimination [6] 3. Monitor and replace low CR products with high CR alternatives to maintain customer flow [7] Adjusting Profitability and Turnover Rates - Strategies to enhance low CR products include optimizing display and inventory management for low turnover, high margin items, and negotiating better procurement costs for high turnover, low margin items [8][9] Comparing CR Values Across Categories - Conduct a comprehensive CR value assessment across product categories to identify advantageous segments for resource allocation and category expansion [10][11] Application of Cross Ratio in Chain Systems - Cross Ratio can help address the challenges of store differentiation and standardization by comparing CR values across stores to identify profitability gaps [12][13] - Targeted adjustments based on CR analysis can lead to significant improvements in store performance [15] Final Value of Cross Ratio - Cross Ratio aids retailers in optimizing capital allocation, enhancing store efficiency, and reducing trial-and-error costs, ultimately leading to higher profitability [20][21][22] - The core logic is that a higher CR translates to more profit generated per unit of inventory investment [20] Conclusion - In the current retail landscape of slowing growth and rising costs, data-driven decision-making through Cross Ratio is crucial for retailers to thrive and optimize operations [23][24]

Group 1 - The article emphasizes the importance of food safety during high temperatures, particularly regarding the consumption of cut fruits and leftover meals [1][11] - Cut watermelon should ideally be consumed fresh, and if stored, it should be wrapped and refrigerated, with a maximum storage time of 48 hours to prevent bacterial growth [1][3] - Leftover food, especially certain types like leafy greens and seafood, should be avoided due to the risk of spoilage and potential health hazards [4][8] Group 2 - Leafy vegetables can lose nutrients and become unsafe if stored improperly, as they may convert nitrates into harmful nitrites [6] - High-protein seafood can produce degradation products if not consumed on the same day, potentially causing gastrointestinal discomfort [8] - Starchy foods like potatoes should be sealed and frozen if not consumed immediately, to minimize bacterial growth [10] Group 3 - Recommendations for summer eating include preparing only what can be consumed in one sitting and ensuring any leftovers are properly stored and reheated before consumption [11][13] - The article outlines a "three do's and three don'ts" approach for summer food safety, emphasizing cooking food thoroughly, separating raw and cooked items, and avoiding the consumption of raw water and unwashed produce [13]

Group 1 - The article discusses the risks associated with the so-called "smart drugs" that are often promoted to enhance academic performance, particularly during exam seasons [1][6] - "Smart drugs" include substances like methylphenidate, modafinil, and Adderall, which are controlled substances with high potential for addiction and significant side effects [3][4] - The misuse of these drugs can lead to severe mental health issues, including irritability, insomnia, and even hallucinations, and they do not actually improve intelligence [6] Group 2 - The article emphasizes the importance of nutrition for brain health, suggesting that certain foods can support cognitive function without the risks associated with "smart drugs" [7] - Six recommended foods for brain health include seafood rich in DHA, nuts high in unsaturated fatty acids, eggs containing lecithin, leafy greens, whole grains, and probiotics [8][10][12][14] - These foods provide essential nutrients that contribute to brain health and cognitive function, highlighting a natural approach to enhancing mental performance [8][10][12][14]