Pakistan Science News API

{
    "totalArticles": 24802,
    "articles": [
        {
            "id": "6450d5943065a9b04d62d33c0b827d71",
            "title": "Complete mitochondrial genome sequence of Koelreuteria paniculata (Sapindaceae) and comparative analysis within the family Sapindaceae",
            "description": "Koelreuteria paniculata (Sapindaceae) is an economically and culturally important species with ornamental traits, durable wood, and medicinal use. Plant mitochondrial (MT) genomes exhibit complex structures and variations in size. Thus, they provide valuable insights into species identification and evolution. However, the K. paniculat MT genome remains largely understudied. Herein, we report the first complete MT genomic sequence of K. paniculata. The complete circular genome contains 58 unique genes: 32 protein-coding, four ribosomal RNA, and 22 transfer RNA genes. The transfer of a 2,047-bp chloroplast-derived fragment containing rrn16 and trnV-GAC into the MT genome was verified. Additionally, we identified 197 simple sequence repeats and 352 dispersed repeats; the longest repeats spanned 2,084 bp. Codon usage favored A/U-ending codons, a conserved feature in terrestrial plants. Moreover, 468 C-to-U RNA-editing sites were predicted across protein-coding genes (PCGs); nad4 was the most affected. For 25 shared PCGs among Sapindaceae species, the mean Ka/Ks ratio (0.64) indicated purifying selection. Meanwhile, atp8, matR, and nad2 showed positive selection, implying adaptive evolution. Phylogenetic analysis of 28 conserved PCGs placed K. paniculata within Sapindaceae. Dynamic MT rearrangements were observed within this family, elucidating the genome architecture and evolutionary dynamics of K. paniculata. These results provide a basis for future comparative and evolutionary studies.",
            "content": "Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give... [797 chars]",
            "url": "https://www.nature.com/articles/s41598-026-53883-9?error=cookies_not_supported&code=36eb284b-0281-475b-a1fa-5f11a3efee64",
            "image": "https://www.nature.com/static/images/favicons/nature/favicon-48x48-b52890008c.png",
            "publishedAt": "2026-06-10T02:36:33Z",
            "lang": "en",
            "source": {
                "id": "7abf0df285fbe93cdccffcc7c4088737",
                "name": "Nature",
                "url": "https://www.nature.com"
            }
        },
        {
            "id": "3fe2fdf515269533615059675d1552b5",
            "title": "Energy-efficient wireless sensor networks using unequal clustering and cluster head rotation optimization",
            "description": "The energy hole problem is a significant challenge in wireless sensor networks (WSN) that use multi-hop routing protocols. Nodes near the base station (BS) typically experience higher energy consumption due to higher data traffic, resulting in faster network energy depletion and creating an energy hole near the BS. To address this issue, the paper proposes a solution involving a mobile data collector (MDC) in an unequal grid cluster. The number and size of the clusters are determined based on the radio energy model’s threshold transmission value, which provides balanced data traffic distribution in the network. The cluster head (CH) is elected based on the node’s distance from the cluster centroid and its residual energy. Additionally, the frequency of CH rotation is optimized through an energy-efficient CH change mechanism. The inclusion of an MDC enables data collection from the CHs along the vertical boundaries, effectively reducing the occurrence of energy holes and extending the network’s overall lifespan. Simulation results demonstrate the superior performance of our protocol compared to similar existing schemes. Our proposed work was simulated using OMNeT++, and the results indicate that it achieves approximately 21% less energy consumption than similar existing works.",
            "content": "Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original... [625 chars]",
            "url": "https://www.nature.com/articles/s41598-026-56877-9?error=cookies_not_supported&code=41d8c1d0-0b0e-41db-97ce-990aec8d3401",
            "image": "https://www.nature.com/static/images/favicons/nature/favicon-48x48-b52890008c.png",
            "publishedAt": "2026-06-10T02:02:19Z",
            "lang": "en",
            "source": {
                "id": "7abf0df285fbe93cdccffcc7c4088737",
                "name": "Nature",
                "url": "https://www.nature.com"
            }
        },
        {
            "id": "ce0387ac7790c04aa22eb35484611765",
            "title": "Don't Leave These 7 Devices Plugged in When You Leave Home",
            "description": "While some devices are OK to leave plugged in when you head out for work or school, others should always be unplugged when not in use.",
            "content": "Some household appliances should always stay plugged in even when we're away for days. Refrigerators, for example, need to stay on to ensure food doesn't spoil. But what about the less permanent home devices, such as toasters and coffee makers?\nTo be... [4014 chars]",
            "url": "https://www.cnet.com/home/kitchen-and-household/dont-leave-these-7-devices-plugged-in-when-you-leave-home/",
            "image": "https://www.cnet.com/a/neutron/images/logos/cnet.png",
            "publishedAt": "2026-06-10T00:45:00Z",
            "lang": "en",
            "source": {
                "id": "f262b4e25cc8e3206db7723c77d4fd60",
                "name": "CNET",
                "url": "https://www.cnet.com"
            }
        }
    ]
}