Ampliación del área de distribución de Oxyrhopus guibei Hoge & Romano, 1977 en Paraguay.

El género Oxyrhopus se encuentra representado en Paraguay por tres especies, O. guibei, O. petolarius y O. rhombifer. O. guibei es una serpiente terrestre de hábitos nocturnos de porte mediano de la familia Dipsadidae (Xenodontinae: Pseudoboini), conocida comúnmente como falsa coral por presentar coloración y patrones que varían entre negro, rojo y blanco, al igual que las serpientes del género Mi cruruso corales verdaderas.CONACYT - Consejo Nacional de Ciencia y TecnologíaPROCIENCI

Estado de las poblaciones de Caimanes en seis Localidades del Paraguay

El objetivo general del trabajo es determinar la densidad poblacional, estructura etaria y uso de hábitat de caimanes en el sur del departamento de Boquerón, Paraguay. Se adjuntan poster y presentación con el mismo título y contenido.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI

The evolving SARS-CoV-2 epidemic in Africa: Insights from rapidly expanding genomic surveillance

INTRODUCTION Investment in Africa over the past year with regard to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) sequencing has led to a massive increase in the number of sequences, which, to date, exceeds 100,000 sequences generated to track the pandemic on the continent. These sequences have profoundly affected how public health officials in Africa have navigated the COVID-19 pandemic. RATIONALE We demonstrate how the first 100,000 SARS-CoV-2 sequences from Africa have helped monitor the epidemic on the continent, how genomic surveillance expanded over the course of the pandemic, and how we adapted our sequencing methods to deal with an evolving virus. Finally, we also examine how viral lineages have spread across the continent in a phylogeographic framework to gain insights into the underlying temporal and spatial transmission dynamics for several variants of concern (VOCs). RESULTS Our results indicate that the number of countries in Africa that can sequence the virus within their own borders is growing and that this is coupled with a shorter turnaround time from the time of sampling to sequence submission. Ongoing evolution necessitated the continual updating of primer sets, and, as a result, eight primer sets were designed in tandem with viral evolution and used to ensure effective sequencing of the virus. The pandemic unfolded through multiple waves of infection that were each driven by distinct genetic lineages, with B.1-like ancestral strains associated with the first pandemic wave of infections in 2020. Successive waves on the continent were fueled by different VOCs, with Alpha and Beta cocirculating in distinct spatial patterns during the second wave and Delta and Omicron affecting the whole continent during the third and fourth waves, respectively. Phylogeographic reconstruction points toward distinct differences in viral importation and exportation patterns associated with the Alpha, Beta, Delta, and Omicron variants and subvariants, when considering both Africa versus the rest of the world and viral dissemination within the continent. Our epidemiological and phylogenetic inferences therefore underscore the heterogeneous nature of the pandemic on the continent and highlight key insights and challenges, for instance, recognizing the limitations of low testing proportions. We also highlight the early warning capacity that genomic surveillance in Africa has had for the rest of the world with the detection of new lineages and variants, the most recent being the characterization of various Omicron subvariants. CONCLUSION Sustained investment for diagnostics and genomic surveillance in Africa is needed as the virus continues to evolve. This is important not only to help combat SARS-CoV-2 on the continent but also because it can be used as a platform to help address the many emerging and reemerging infectious disease threats in Africa. In particular, capacity building for local sequencing within countries or within the continent should be prioritized because this is generally associated with shorter turnaround times, providing the most benefit to local public health authorities tasked with pandemic response and mitigation and allowing for the fastest reaction to localized outbreaks. These investments are crucial for pandemic preparedness and response and will serve the health of the continent well into the 21st century

Evalución del impacto por atropellamiento de fauna de la ruta n° 9 "Dr. Carlos Antonio López" (transchaco), tramo Remanso - Pozo Colorado

El trabajo tiene el objetivo general de evaluar cualitativa y cuantitativamente el impacto por atropellamientos sobre las poblaciones de vertebrados de la Ruta Nº 9 "Transchaco" para definir propuestas de acciones de prevención y mitigación.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI

Animales atropellados en la Ruta Transchaco

El trabajo tiene el objetivo general de evaluar cualitativa y cuantitativamente el impacto por atropellamientos sobre las poblaciones de vertebrados de la Ruta Nº 9 "Transchaco" para definir propuestas de acciones de prevención y mitigación.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI

Animales atropellados en la Ruta Transchaco

El trabajo tiene el objetivo general de evaluar cualitativa y cuantitativamente el impacto por atropellamientos sobre las poblaciones de vertebrados de la Ruta Nº 9 "Transchaco" para definir propuestas de acciones de prevención y mitigación.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI

Search for Scalar Diphoton Resonances in the Mass Range 65−60065-600 GeV with the ATLAS Detector in pppp Collision Data at s\sqrt{s} = 8 TeVTeV

A search for scalar particles decaying via narrow resonances into two photons in the mass range 65–600 GeV is performed using $20.3\text{}\text{}{\mathrm{fb}}^{-1}$ of $\sqrt{s}=8\text{}\text{}\mathrm{TeV}$ $pp$ collision data collected with the ATLAS detector at the Large Hadron Collider. The recently discovered Higgs boson is treated as a background. No significant evidence for an additional signal is observed. The results are presented as limits at the 95% confidence level on the production cross section of a scalar boson times branching ratio into two photons, in a fiducial volume where the reconstruction efficiency is approximately independent of the event topology. The upper limits set extend over a considerably wider mass range than previous searches