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XavierPolymer

@xavierpolymer.bsky.social

264 followers 774 following 166 posts

Talk Tech to Me 🦾🧑🏿‍🔬USA Engineering PhD. Cybersecurity MS. Biotech MS. Another MS Pending Dope eco, sci, and eng papers are appreciated. My posts are not endorsements, moreso they're a fraction of observations.

Posts Replies Media

XavierPolymer @xavierpolymer.bsky.social · 20/11/2025

www.statnews.com/2025/11/17/b...

Brain organoid pioneers fear inflated claims about biocomputing could backfire

Despite widespread skepticism, the National Science Foundation and DARPA have invested millions of dollars in organoid-based biocomputing

XavierPolymer @xavierpolymer.bsky.social · 30/10/2025

www.youtube.com/watch?v=Mho-...

Building Responsible AI in Africa | Darlington Akogo | TEDxAshesiUniversity

YouTube video by TEDx Talks

XavierPolymer @xavierpolymer.bsky.social · 20/10/2025

www.bbc.com/news/article...

Life-changing eye implant helps blind patients read again

The results are astounding and a major advance, say surgeons involved in international research using the pioneering technology.

XavierPolymer @xavierpolymer.bsky.social · 13/10/2025

www.anthropic.com/research/sma...

A small number of samples can poison LLMs of any size

Anthropic research on data-poisoning attacks in large language models

XavierPolymer @xavierpolymer.bsky.social · 29/09/2025

www.un.org/independent-...

Home | Independent International Scientific Panel on AI

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XavierPolymer @xavierpolymer.bsky.social · 25/09/2025

pubmed.ncbi.nlm.nih.gov/40079153/

pubmed.ncbi.nlm.nih.gov

Harnessing Intelligence from Brain Cells In Vitro - PubMed

Harnessing intelligence from brain cells in vitro requires a multidisciplinary approach integrating wetware, hardware, and software. Wetware comprises the in vitro brain cells themselves, where differ...

XavierPolymer @xavierpolymer.bsky.social · 12/09/2025

www.nature.com/articles/s41...

Hyperspectral reporters for long-distance and wide-area detection of gene expression in living bacteria - Nature Biotechnology

Hyperspectral reporter genes allow imaging of ground bacteria from aerial vehicles

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XavierPolymer @xavierpolymer.bsky.social · 24/07/2025

arxiv.org/abs/2507.07935

Working with AI: Measuring the Occupational Implications of Generative AI

Given the rapid adoption of generative AI and its potential to impact a wide range of tasks, understanding the effects of AI on the economy is one of society's most important questions. In this work, ...

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XavierPolymer @xavierpolymer.bsky.social · 19/07/2025

pubs.acs.org/doi/10.1021/...

Polymer Coating for the Long-Term Storage of Immobilized DNA

As healthcare systems worldwide demand early disease detection and personalized medicine, electrochemical biosensors stand out as a promising technology to meet these demands due to their sensitivity,...

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XavierPolymer @xavierpolymer.bsky.social · 17/07/2025

arxiv.org/abs/2507.11536

Understanding Quantum Information and Computation

This is a course on the theory of quantum computing. It consists of 16 lessons, each with a video and written component, covering the basics of quantum information, quantum algorithms (including query...

XavierPolymer @xavierpolymer.bsky.social · 14/07/2025

From abstract: "Large language models (LLMs) and vision–language models (VLMs) have the potential to transform biological research by enabling autonomous experimentation" arxiv.org/pdf/2507.01485

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XavierPolymer @xavierpolymer.bsky.social · 12/07/2025

From abstract: "This article is about the neural conundrum behind the slowness of human behavior. The information throughput of a human being is about 10 bits/s. In comparison, our sensory systems gather data at ∼1⁢0^9 bits/s." www.cell.com/neuron/abstr...

The unbearable slowness of being: Why do we live at 10 bits/s?

Zheng and Meister write about the paradoxical slowness of human behavior. Although our senses gather data at 109 bits/s, our overall information throughput is only 10 bits/s. This stark contrast touch...

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XavierPolymer @xavierpolymer.bsky.social · 09/07/2025

www.nature.com/articles/s41...

Framework for bias evaluation in large language models in healthcare settings - npj Digital Medicine

npj Digital Medicine - Framework for bias evaluation in large language models in healthcare settings

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XavierPolymer @xavierpolymer.bsky.social · 07/07/2025

www.nature.com/articles/s41...

A chimeric viral platform for directed evolution in mammalian cells - Nature Communications

Directed evolution is a process of mutation and artificial selection to breed biomolecules with new or improved activity. Here the authors develop a directed evolution platform (PROTein Evolution Usin...

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XavierPolymer @xavierpolymer.bsky.social · 07/07/2025

spectrum.ieee.org/exoplanet-ci...

spectrum.ieee.org

Astronomers, Citizen Scientists Spot Gas Giant 400 Light-Years Away

Astronomers spot a rare gas giant exoplanet, TOI-4465 b, with the help of citizen scientists. How did they manage to observe its elusive transit?

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XavierPolymer @xavierpolymer.bsky.social · 23/06/2025

www.pnas.org/doi/abs/10.1...

Global decline of apex scavengers threatens human health | PNAS

Vertebrate scavengers play a critical role in ecosystem functioning worldwide. Through the cascading effects of their ecological role, scavengers c...

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XavierPolymer @xavierpolymer.bsky.social · 21/06/2025

www.cell.com/trends/genet...

What does evolution make? Learning in living lineages and machines

How does genomic information unfold, to give rise to self-constructing living organisms with problem-solving capacities at all levels of organization? We review recent progress that unifies work in de...

XavierPolymer @xavierpolymer.bsky.social · 21/06/2025

arxiv.org/abs/2506.08872

Your Brain on ChatGPT: Accumulation of Cognitive Debt when Using an AI Assistant for Essay Writing Task

This study explores the neural and behavioral consequences of LLM-assisted essay writing. Participants were divided into three groups: LLM, Search Engine, and Brain-only (no tools). Each completed thr...

XavierPolymer @xavierpolymer.bsky.social · 09/06/2025

www.sciencedirect.com/science/arti...

sciencedirect.com

Status update of NASAs assessment of the biological contamination threat of crewed mars surface missions

As we prepare for a future first mission to Mars with a human crew, the United States, under the Outer Space Treaty of 1967, has an obligation to prot…

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XavierPolymer @xavierpolymer.bsky.social · 09/06/2025

machinelearning.apple.com

The Illusion of Thinking: Understanding the Strengths and Limitations of Reasoning Models via the Lens of Problem Complexity

Recent generations of frontier language models have introduced Large Reasoning Models (LRMs) that generate detailed thinking processes…

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XavierPolymer @xavierpolymer.bsky.social · 07/06/2025

How we’re responding to The New York Times’ data demands in order to protect user privacy

OpenAI is fighting a court order at the demands of The New York Times and plaintiffs, which involves retention of consumer ChatGPT and API user data indefinitely. Learn how we’re working to uphold use...

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XavierPolymer @xavierpolymer.bsky.social · 07/06/2025

arxiv.org/abs/2506.04043

Think Like a Person Before Responding: A Multi-Faceted Evaluation of Persona-Guided LLMs for Countering Hate

Automated counter-narratives (CN) offer a promising strategy for mitigating online hate speech, yet concerns about their affective tone, accessibility, and ethical risks remain. We propose a framework...

XavierPolymer @xavierpolymer.bsky.social · 06/06/2025

arxiv.org/abs/2407.12784

AgentPoison: Red-teaming LLM Agents via Poisoning Memory or Knowledge Bases

LLM agents have demonstrated remarkable performance across various applications, primarily due to their advanced capabilities in reasoning, utilizing external knowledge and tools, calling APIs, and ex...

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XavierPolymer @xavierpolymer.bsky.social · 06/06/2025

forbesafrica.com

30 Under 30 Class of 2025/Darlington Ahiale Akogo: From Healthtech Solutions To Dining With Bill Gates

Words and Curation Chanel RetiefAdditional research Nicole Pillay and Oluwatomisin AmokeojaArt Direction and Photography Manelisi DabataPhotography Assistant: Ovayo NonqaStylist: Onela JoniStylist’s A...

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XavierPolymer @xavierpolymer.bsky.social · 04/06/2025

alz-journals.onlinelibrary.wiley.com/doi/10.1002/...

alz-journals.onlinelibrary.wiley.com

STING deletion protects against amyloid β–induced Alzheimer's disease pathogenesis

INTRODUCTION While immune dysfunction has been increasingly linked to Alzheimer's disease (AD) progression, many major innate immune signaling molecules have yet to be explored in AD pathogenesis us...

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XavierPolymer @xavierpolymer.bsky.social · 04/06/2025

osf.io/preprints/os...

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XavierPolymer @xavierpolymer.bsky.social · 04/06/2025

www.hstoday.us/featured/ran...

Randy Murch, Pioneering Biosecurity and Forensics Expert, Dies at 72 HS Today

Randall “Randy” Murch, a respected national security advisor, former FBI agent and executive, and widely recognized expert in biosecurity and forensics, passed away on May 28, 2025, aged 72 due to hea...

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XavierPolymer @xavierpolymer.bsky.social · 04/06/2025

www.biorxiv.org/content/10.1...

Inter-tool analysis of a NIST dataset for assessing baseline nucleic acid sequence screening

Nucleic acid synthesis is a dual-use technology that can benefit fields such as biology, medicine, and information storage. However, synthetic nucleic acids could also potentially be used negligently ...

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XavierPolymer @xavierpolymer.bsky.social · 03/06/2025

New species of space-adapted bacteria discovered on China's Tiangong space station

Say hello to Niallia tiangongensis.

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XavierPolymer @xavierpolymer.bsky.social · 31/05/2025

Brain drugs can now cross the once impenetrable blood–brain barrier

New technologies to shuttle drugs into the brain are showing promise in Alzheimer’s disease, cancer and more.

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XavierPolymer @xavierpolymer.bsky.social · 31/05/2025

Molecular basis of positional memory in limb regeneration - Nature

A molecular analysis of axolotl limb regeneration has identified a positive genetic circuit that maintains posterior cell identity and can be used to reprogramme anterior cells into pos...

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XavierPolymer @xavierpolymer.bsky.social · 31/05/2025

Admixture’s impact on Brazilian population evolution and health

Brazil, the largest Latin American country, is underrepresented in genomic research despite boasting the world’s largest recently admixed population. In this study, we generated 2723 high-coverage who...

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XavierPolymer @xavierpolymer.bsky.social · 31/05/2025

Can this nasal spray slow down Alzheimer's? One couple is helping scientists find out

Joe Walsh is the first Alzheimer's patient to be treated with an experimental nasal spray designed to reduce inflammation in the brain.

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XavierPolymer @xavierpolymer.bsky.social · 30/05/2025

Motion artifact–controlled micro–brain sensors between hair follicles for persistent augmented reality brain–computer interfaces | PNAS

Modern brain–computer interfaces (BCI), utilizing electroencephalograms for bidirectional human–machine communication, face significant limitations...

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XavierPolymer @xavierpolymer.bsky.social · 30/05/2025

From preprint: "Here, we introduce Ctrl-DNA, a novel constrained reinforcement learning (RL) framework tailored for designing regulatory DNA sequences with controllable cell-type specificity" Code: github.com/bowang-lab/C...

Ctrl-DNA: Controllable Cell-Type-Specific Regulatory DNA Design via Constrained RL

Designing regulatory DNA sequences that achieve precise cell-type-specific gene expression is crucial for advancements in synthetic biology, gene therapy and precision medicine. Although transformer-b...

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XavierPolymer @xavierpolymer.bsky.social · 30/05/2025

From article: "They demonstrated the technique by encoding an 11-character password written into 11 different molecules, decoding it, and using it to unlock a computer."

Researchers use electrochemistry to read data stored in molecules

The technique offers a less expensive approach to oligomer sequencing than mass spectrometry

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XavierPolymer @xavierpolymer.bsky.social · 23/05/2025

www.nature.com/articles/d41...

Brain tissues, assemble! Inside the push to build better brain models

With organoids, assembloids and a growing toolkit of bioengineering tricks, scientists are stitching together models of the developing human brain — and pushing the limits of realism and control.

XavierPolymer @xavierpolymer.bsky.social · 23/05/2025

www.knowyourrightscamp.org/post/georgia...

knowyourrightscamp.org

Georgia State University Receives $500,000 Grant To Preserve Gullah Geechee Heritage

A $500,000 grant from the Mellon Foundation will enable Georgia State University (GSU) to launch the Gullah Geechee Sacred Land Project (GGSLP), a major initiative focused on the preservation of Afric...

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XavierPolymer @xavierpolymer.bsky.social · 23/05/2025

www.npr.org/2025/05/18/n...

Losing faith: Rural religious colleges are among the most endangered

Some religious colleges and universities are cutting programs. Others are seeking mergers to reduce costs and expand offerings.

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XavierPolymer @xavierpolymer.bsky.social · 23/05/2025

spectrum.ieee.org/ground-contr...

spectrum.ieee.org

Could Giant Robotic Centipedes Revolutionize Farming?

Ground Control Robotics is revolutionizing agriculture with bioinspired centipede robots! These wiggly wonders tackle complex terrains, offering a cost-effective solution for weed control in vineyards...

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XavierPolymer @xavierpolymer.bsky.social · 23/05/2025

ground.news/article/nova...

FDA approves Novavax COVID-19 shot but with unusual restrictions

By Katherine Dillinger, CNN (CNN) — After a six-week delay, the US Food and Drug Administration has approved Novavax’s Covid-19 vaccine, according to a letter from the agency, but only for people 65 a...

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XavierPolymer @xavierpolymer.bsky.social · 23/05/2025

www.npr.org/sections/goa...

A study finds stacking bricks differently could help this country fight air pollution

Bangladesh suffers from extreme air pollution, but a new study shows the brick industry can make small changes to have a big effect on the country's smog problem.

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XavierPolymer @xavierpolymer.bsky.social · 23/05/2025

pharmaphorum.com/news/fda-fas...

pharmaphorum.com

FDA fast-tracks GSK’s gonorrhoea vaccine

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XavierPolymer @xavierpolymer.bsky.social · 23/05/2025

www.fda.gov/news-events/...

FDA Announces Completion of First AI-Assisted Scientific Review Pilot and Aggressive Agency-Wide AI Rollout Timeline

FDA announced an aggressive timeline to scale AI across all centers by June 30.

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XavierPolymer @xavierpolymer.bsky.social · 23/05/2025

www.newscientist.com/article/2481...

newscientist.com

The first teeth were sensory organs on the skin of ancient fish

Teeth are good for chewing and biting, but they are also sensitive – and that may have been their original function hundreds of millions of years ago

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XavierPolymer @xavierpolymer.bsky.social · 23/05/2025

www.science.org/content/arti...

New sonar tool is a ‘game changer’ for mapping the sea floor

Devices that mimic giant acoustic cameras can spy animal burrows, explosive mines, and metallic deposits

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XavierPolymer @xavierpolymer.bsky.social · 12/05/2025

From article: "Both Chondrocytes and Chondrosarcoma cells migrate towards the anode when exposed to an EF in 3D – Notably 2D reports of chondrocyte migration observed cathodally directed migration" www.sciencedirect.com/science/arti...

sciencedirect.com

XavierPolymer @xavierpolymer.bsky.social · 29/04/2025

www.theverge.com/news/656245/...

An AI-generated radio host in Australia went unnoticed for months

The line between what’s real and what’s AI-generated is getting blurrier.

XavierPolymer @xavierpolymer.bsky.social · 27/04/2025

lu.ma/biopunk2025

Biopunk (un)Conference · Luma

Biotech is f*cked. We've decided to change that. To lower the barrier to entry for people who actively want to change the system. When the largest gathering of…

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XavierPolymer @xavierpolymer.bsky.social · 26/04/2025

www.broadinstitute.org/connectivity...

broadinstitute.org

Connectivity Map (CMAP)

What We Do The sequencing of the human genome has led to an explosion of new insights into the genetic basis of disease. A challenge, however, is that while the identity of disease-associated genes ma...

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