Catalin Dimofte

Doar eu

[Massimo @Rainmaker1973]

Reinforcement learning

[Prof. Dr. Veysi Ceri @VeysiCe]

Beyinde yeni bir bilginin öğrenilme anı

[Ava Williams @Ava_Williams_32]

“Curiosity in every tentacle 🐙💙 Even bubbles can become a little adventure!”

[Massimo @Rainmaker1973]

Scientists have created one of the most detailed 3D reconstructions of a human cell (eukaryotic cell) ever produced.

This groundbreaking model, often termed a "Cellular Landscape Cross-Section Through a Eukaryotic Cell," combines data from X-ray tomography, nuclear magnetic resonance (NMR), and cryo-electron microscopy to map molecular structures in extreme detail.

[Massimo @Rainmaker1973]

A bird watches a man fish, he offers it his catch, and then this happened.

[Liliana Franco @lilianaf523]

🔴 ADMIRABLE‼️ En Nepal, las personas que luchan por sobrevivir son salvadas por elefantes.

[Latest in Cosmos @latestincosmos]

🚨: This is Mars!

140 million miles away from us!😮

[Massimo @Rainmaker1973]

Sexual self-stimulation is a documented behavior in both male and female elephants.

Male elephants do it primarily by rhythmically slapping their reproductive organ against their own underbelly or thighs.

[Poole, J. H., et al. (2005). The sexually active states of free-ranging male African elephants (Loxodonta africana): defining musth and non-musth using endocrinology, physical signals, and behavior. Hormones and Behavior. DOI: 10.1016/j.yhbeh.2004.09.004]

[Shining Science @ShiningScience]

Science shows sleeping on your left side significantly improves digestion and reduces acid reflux.

Your nightly sleeping position does more than just determine your comfort level; it plays a critical role in how your body processes food and manages acidity. Research indicates that sleeping on your left side is superior for digestion because it utilizes gravity to keep stomach acid positioned lower than the esophagus. This physical orientation prevents the upward flow of gastric juices, effectively reducing the frequency and severity of heartburn while simultaneously assisting the natural transit of waste through the colon.

Conversely, opting for your right side may inadvertently trigger digestive distress. When lying on the right, the stomach's position relative to the esophagus makes it easier for acid to leak upward, often resulting in a restless night for those prone to GERD. While some theories suggest right-side sleeping might slow waste movement—potentially offering a temporary benefit for those managing diarrhea—the general consensus remains that the left side is the gold standard for maintaining long-term gastrointestinal health.

Source: Suni, E., & Vyas, N. (2023). Best Sleeping Position. Sleep Foundation.

[Massimo @Rainmaker1973]

The lungs of a 52 y.o. organ donor after 30 years of smoking (lungs were rejected for donation due to poor condition).

[Massimo @Rainmaker1973]

Which is the rotation sense?

This phenomenon is called bistable perception, and you can actually control the rotation direction with your will.

[Nature Chapter @NatureChapter]

The greatest betrayal in nature 💔
Newborn crocs hatch and run toward the first big shadow they see, thinking it's MOM. But it's a python.
They offer themselves to the darkness with tragic compliance.
Until REAL MOM returns. And then it's not a hunt anymore. It's WAR.

[Laura Dolce @abcElegancia]

¿Sabías que un ventilador de PC y una tira de luces UV baratas pueden dejar tu terraza sin un solo mosquito en una noche?
Llevo semanas obsesionado con esto y no es magia, es pura física.

Los mosquitos son ciegos al rojo, pero la luz UV entre 365 y 395 nanómetros les parece agua brillando bajo el sol, justo donde ponen sus huevos.

Van directos a ella pensando que encontraron el sitio perfecto para reproducirse.

Aquí viene la parte que casi nadie explica bien: un mosquito vuela a 1,5-2 km/h, así de débil es.

Un ventilador normal de 120 mm mueve el aire a 3-5 km/h.

En cuanto se acerca a la luz, la corriente lo supera y ya no puede volver atrás, mucho menos si el embudo estrecha el flujo y lo acelera (efecto Venturi puro).

Y el detalle que más me sorprendió: la humedad los mata más rápido que cualquier otra cosa.

Por debajo del 40% de humedad, un mosquito se deshidrata en menos de una hora porque pierde agua constantemente a través del exoesqueleto.

Con 30°C de calor, sus huevos eclosionan en solo 4 días, así que el verano juega en su contra si sabes cómo aprovecharlo.

Un consejo importante antes de que lo montes: pon la trampa a 6-10 metros de donde te sientas.

Si la pones cerca, primero los atraes hacia ti y luego hacia la trampa, lo cual tiene poco sentido.

¿Alguna vez habías pensado en montar algo así en casa o prefieres los métodos de toda la vida?

Cu��ntame qué truco anti-mosquitos te ha funcionado mejor este verano.

[Shining Science @ShiningScience]

🚨 A man was shot in the head and cured of mental illness:

A 19-year-old man who attempted suicide by shooting himself in the head inadvertently cured his own severe, debilitating obsessive-compulsive disorder.

In 1983, a teenager identified only as George was trapped in a relentless cycle of severe obsessive-compulsive disorder (OCD), washing his hands hundreds of times a day and taking endless showers.

Unable to cope with the debilitating illness, which had forced him to drop out of school and quit his job, George attempted to end his life by shooting himself in the head with a .22-caliber rifle.

Remarkably, he survived. The bullet lodged in his brain's left frontal lobe, and while surgeons managed to remove most of it, some bullet fragments remained permanently embedded.

What followed puzzled and amazed his medical team: within three weeks of the incident, George’s obsessive-compulsive behaviors had virtually disappeared. Over the next five years, he achieved an astonishing recovery, successfully reentering society, securing steady employment, and maintaining straight-A grades in college.

His treating psychiatrist, Dr. Laszlo Solyom, explained that the bullet had precisely destroyed the localized brain tissue responsible for his OCD while sparing his overall intelligence and cognitive abilities.

While doctors strongly warn that this was a highly dangerous, near-fatal fluke, the case remains a landmark in neuropsychiatry, demonstrating the profound and still-mysterious link between physical brain structures and mental health.

source: The New York Times. Brain Wound Eliminates Man's Mental Illness.

[Shining Science @ShiningScience]

Women may actually need more sleep than men — and one big reason is the greater mental load they carry each day.

🧠 Studies show women average about 11 minutes more rest per night, but it’s not just biology. From multitasking at work to managing family responsibilities, combined with hormonal cycles and higher rates of insomnia or anxiety, women’s sleep is disrupted more often. This constant juggling creates more cognitive and emotional fatigue, meaning the brain needs extra time to recover. Scientists say it’s not that women simply “sleep longer,” but that their sleep must make up for the daily weight of stress, planning, and invisible labor.

⚡ The takeaway? The greater mental load women bear doesn’t end at bedtime — it follows them into the night, demanding more rest to recharge.

[Shining Science @ShiningScience]

Research shows playing in the dirt isn't just fun — it's critical to health.

And studies show it transforms children's immune systems in just 28 days.

A groundbreaking experiment in Finland replaced gravel and asphalt in nursery playgrounds with patches of forest floor, complete with mosses, leaf litter, and wild undergrowth.

The results were staggering: within just 28 days, children who played in these rewilded yards developed more diverse skin and gut microbiomes along with higher levels of regulatory T-cells. This suggests that the biodiversity hypothesis—the idea that our sterile urban environments are linked to rising allergy and autoimmune rates—is a tangible reality we can change by simply reintroducing nature's microbial network to our daily lives.

This shift from aesthetic gardening to functional micro-biodiversity is the driving force behind modern rewilding efforts. Whether you manage a sprawling backyard or a small city balcony, introducing native leaf litter, moss, and living substrates serves as a direct investment in human health. By replacing sterile surfaces like gravel or rubber with living ones, we are doing more than creating wildlife corridors; we are rebuilding the microbial foundation essential for human resilience. Embracing natural complexity—dirt and all—is a foundational step toward a healthier future for both our families and the planet.

source: Roslund, A. S., Puhakka, R., Grönroos, M., Nurminen, N., Oikarinen, S., Gazali, A. M., ... & Sinkkonen, A. (2020). Biodiversity intervention enhances immune regulation and health-associated commensal microbiota among daycare children. Science Advances.

[Shining Science @ShiningScience]

Neuroscience research shows that human nervous systems are deeply influenced by social connection, emotional safety, and the quality of relationships around us.

Supportive interactions such as kindness, affection, calm communication, and emotional reassurance can help lower stress hormones and promote feelings of safety and stability.

On the other hand, chronic conflict, emotional neglect, unpredictability, or toxic environments can keep the body in a prolonged state of stress and hypervigilance.

Psychologists describe this process as “co-regulation,” where people unconsciously affect each other’s emotional and physiological states through tone, behavior, and connection.

Studies continue to link healthy relationships with better mental health, improved sleep, stronger immune function, lower inflammation, and greater emotional resilience over time.

[Science girl @sciencegirl]

Plants don’t “scream” in the way animals do, but they do release powerful chemical signals when they are stressed. When a plant is attacked by insects, cut, or exposed to drought, it can emit volatile organic compounds (VOCs) into the air. These chemicals can serve several purposes at once: they may warn nearby plants to activate their own defences, or attract predators such as parasitic wasps that hunt the insects feeding on them. For example, corn plants under caterpillar attack release scents that summon wasps to help control the damage,

they release a precise blend of volatile organic compounds (VOCs), including the key chemical DMNT. These airborne “distress signals” travel through the air and attract parasitic wasps. The wasps locate the caterpillars, lay their eggs inside them, and the developing wasp larvae then consume the caterpillar from the inside out, reducing their population

This sophisticated chemical cry for help allows the corn plant to recruit its own bodyguards, dramatically reducing the damage from herbivores. It’s one of the best-studied examples of plants actively communicating with other species to defend themselves. Cotton and tomato plants also recruit wasps

Sagebrush doesn’t just call for help from insects , it releases VOCs (like camphor and thujone) when damaged, which “warn” neighboring sagebrush plants to increase their chemical defenses (making their leaves less tasty to herbivores).

These are not sounds or emotions just complex biochemical responses but together they form an invisible communication system happening constantly in the plant world.

[Science girl @sciencegirl]

A single dose of a new cancer drug made a brain tumor almost disappear - in just 5
days

In early 2024, doctors at Massachusetts General Hospital treated three people with recurrent glioblastoma brain tumour using a brand-new type of CAR T-cell therapy called CARv3-TEAM-E.

The treatment is made from each patient’s own immune cells, which are taken out, genetically rewired in the lab to recognize two different markers commonly found on glioblastoma cells, and then infused directly into the fluid spaces of the brain through a single procedure.

The results were stunning and much faster than anyone expected:

In one patient, MRI scans taken just five days after the single infusion showed the tumor had almost completely vanished.

A second patient had more than 60 % of the tumor disappear, and that shrinkage lasted for over six months.

The third patient also had clear tumor reduction within days.

These responses happened far more quickly and dramatically than anything seen before with immunotherapy for this type of brain cancer. Doctors described the early images as “jaw-dropping.

[Massimo @Rainmaker1973]

Just 28 days without parabans and phthalates turned off breast cancer genes.

Researchers followed a group of healthy women who routinely used common personal-care products containing parabens and phthalates—chemicals found in everything from shampoo and lotion to makeup and fragrance. These compounds can act like estrogen in the body, and excess estrogen-like activity has long been tied to higher breast-cancer risk.

For 28 days, 36 women did one simple thing: they switched to paraben- and phthalate-free alternatives. No drugs, no diet changes—just cleaner cosmetics and toiletries.

The results were striking: urine tests confirmed that levels of the chemicals’ breakdown products plummeted, proving exposure had been sharply reduced.

But the bigger revelation came from breast-tissue biopsies taken before and after the switch. In just four weeks, the women’s breast cells began behaving less like precancerous or cancerous cells.

They regained the ability to respond to normal “cell-death” signals (a safeguard tumors often disable). Protective estrogen receptors, which are typically shut down in breast cancer, switched back on. Gene-expression patterns shifted away from high-risk profiles and toward healthier patterns.

This is the first human evidence that routine exposure to these everyday chemicals can nudge normal breast cells in a cancer-like direction—and, crucially, that removing the exposure can begin to reverse the process remarkably quickly.

It’s not definitive proof that changing your body wash will prevent breast cancer. But it does show that the body notices—and starts to repair itself—almost immediately when you stop putting these substances on your skin.

["Reduction of daily-use parabens and phthalates reverses accumulation of cancer-associated phenotypes within disease-free breast tissue of study subjects." Chemosphere, 2023]