The genome of the solitary bee Tetrapedia diversipes (Hymenoptera, Apidae).

Tetrapedia diversipes is a Neotropical solitary bee commonly found in trap-nests, known for its morphological adaptations for floral oil collection and prepupal diapause during the cold and dry season. Here, we present the genome assembly of T. diversipes (332 Mbp), comprising 2,575 scaffolds, with 15,028 predicted protein-coding genes.

Controlled and Safe Hydrogen Generation from Waste Aluminum and Water, a New Approach to Hydrogen Generation.

A new method is proposed to generate hydrogen in situ at low pressure from powder-pressed recycled aluminum turnings activated with small amounts of NaOH and drops of water. The contribution of this system is that the user can obtain small flows of high-purity hydrogen (>99%) to charge their portable electronic devices in remote places, in a simple, controlled, and safe way, since only water is used. Test tubes that contain tiny amounts of NaOH on their surface can be transported and used without contact.

Olfactory neuroblastoma: literature review and presentation of two clinical cases with different tumour infiltrations and different approaches.

The olfactory neuroblastoma is a rare malignant neoplasm derived from the olfactory neuroepithelium. It can metastasize to cervical lymph node chains and distant organs through hematogenous or lymphatic routes. Two clinical cases are presented: the first, a 56-year-old man with no pathological history, exhibited symptoms evolving over 2 months, characterized by persistent rhinorrhea with frequent epistaxis, ipsilateral proptosis, left hemicranial pain, anosmia, and dysgeusia.

Engineered transcription-associated Cas9 targeting in eukaryotic cells.

DNA targeting Class 2 CRISPR-Cas effector nucleases, including the well-studied Cas9 proteins, evolved protospacer-adjacent motif (PAM) and guide RNA interactions that sequentially license their binding and cleavage activities at protospacer target sites. Both interactions are nucleic acid sequence specific but function constitutively; thus, they provide intrinsic spatial control over DNA targeting activities but naturally lack temporal control. Here we show that engineered Cas9 fusion proteins which bind to nascent RNAs near a protospacer can facilitate spatiotemporal coupling between transcription and DNA targeting at that protospacer: Transcription-associated Cas9 Targeting (TraCT).

Multilayer Nanocarrier for the Codelivery of Interferons: A Promising Strategy for Biocompatible and Long-Acting Antiviral Treatment.

Interferons (IFNs) are cytokines involved in the immune response with a synergistic regulatory effect on the immune response. They are therapeutics for various viral and proliferative conditions, with proven safety and efficacy. Their clinical application is challenging due to the molecules' size, degradation, and pharmacokinetics.