Ludovico paleta

Filosofía empírica

[Massimo @Rainmaker1973]

The 'knight’s tour' is a sequence of a knight's moves on a chessboard such that the knight visits every square only once.

[แมวเกเร @Unrulycat2511]

ดูรูปร่างแล้ว ไม่น่าจะต้องดูดไขมันหน้าท้อง ความต้องการเรื่องความงามของผู้หญิงไม่มีข้อสิ้นสุดจริงๆ

[Enséñame de Ciencia @EnsedeCiencia]

Close-ups de una culturista profesional mostrando su desarrollo muscular real obtenido por entrenamiento intenso, dieta y otros. Impactante nivel de hipertrofia muscular

[Keith Siau @drkeithsiau]

Which treatment does this refer to?

[Teddy - PolyBackTest.com @Bitcoin_Teddy]

Why don’t elephants get cancer?

Billionaire physician Dr. Patrick Soon-Shiong on Megyn Kelly:
“Elephants have 8 copies of the tumor-suppressor gene p53. Humans have only 1.
Our lab found COVID knocks down p53 — exactly like HPV does before it triggers cancer 5–10 years later.
We’re now seeing head & neck cancers surge past cervical cancer numbers in the US. I’ve personally treated 6 patients with our new protocol… all 6 had dramatic responses.”

Paper incoming. Randomized trial starting.

Is this the hidden mechanism driving a new cancer wave?

Watch the 1:13 clip and decide for yourself

[Massimo @Rainmaker1973]

This are heart cells. Beating.

Using stem cells, scientists can grow cardiac tissue in a petri dish. The cells self-organize to form microchambers, which begin to beat like a full-sized heart.

[📹 Jessica Gluck]

[Interesting STEM @InterestingSTEM]

An MRI scan of a 33-year-old woman demonstrates the actual persistence of facial fillers she has received over the years.

Contrary to the common belief that hyaluronic acid fillers naturally break down and disappear within a few months, the imaging reveals that substantial amounts of the injected material remain even after six years, with incomplete absorption. This prolonged presence and potential migration of fillers can contribute to tissue expansion, lymphatic obstruction, and distortion of facial contours.

[Abdulrahman Al Nimeiry @abdulra_hman11]

للوهلة الأولى، قد تبدو هذه اللقطة لأي شخص عادي وكأنها مشهد من فيلم رعب، أو عودة معجزة للحياة. لكن بالنسبة لنا كطلاب طب او كأطباء، نحن نقف هنا أمام واحدة من أغرب الظواهر الفسيولوجية: علامة لازاروس (Lazarus Sign).

[Virginio Gallardo @virginiog]

Marco Rubio alerta: la IA reemplazará millones de empleos, tanto de cuello azul como de cuello blanco . “Habrá trabajos de oficina que serán impactados”, advirtió Los trabajadores deben prepararse ya y aprender nuevas habilidades o quedarán atrás. “Con el tiempo esto podría desestabilizar sociedades en todo el mundo” Marco Rubio urge a los estadounidenses a capacitarse ante la disrupción masiva que viene en empleos de todo tipo. ⚠️ Yo como sabéis hace años que propongo políticas de Reskilling a los profesionales frente la digitalización, pero un cambio tan profundo requiere "reinventar" las políticas de talento desde las instituciones y el estado, no puede ser un sálvese quién pueda

[Sama Hoole @SamaHoole]

1918: they sold radioactive water as a health tonic. It was radium, and it dissolved men's jaws.

1898: they sold heroin as a children's cough syrup. It was heroin.

1863: they sold cocaine wine as a daily pick-me-up. Popes and presidents put their names to it.

1946: they sold cigarettes on a doctor's recommendation. Whole campaigns ran on which brand physicians preferred.

1960s: they sold margarine as the heart-healthy fat. It was loaded with the trans fat that actually stops hearts.

Every one of these came with an expert's blessing and total confidence.

The people telling you today which fat to fear are the institutional descendants of the ones who put radium in your water and a doctor's face on a cigarette packet.

"The experts recommend it" has a body count going back a century.

[Modern Health @modernHealthMe]

Renal angiogram of patient presented with recurrent headaches, tinnitus and Hypertension.

Diagnosis??

[Enséñame de Ciencia @EnsedeCiencia]

El pez volador planea nadando a gran velocidad para salir a la superficie, donde extiende sus aletas pectorales rígidas como alas y aprovecha las corrientes de aire sobre las olas para flotar sin necesidad de batirlas

[Abdulrahman Al Nimeiry @abdulra_hman11]

الاختبار اللذي يفصل بين الحياة والموت ..

داخل العنايه نستخدم هذا الفحص
الذي يسمى caloric test
عشان نتاكد هل مازال جذع
المخ شغال ام لا.

- ايه اللي بيحصل؟
بنحقن ماء بارد جداً داهل الأذن لاستثارة الجهاز الدهليزي
طب ليه مية باردة جوه الأذن؟
لأن الأذن الداخلية مرتبطة مباشرة ب ال Vestibular
وده المسؤول عن التوازن وحركة العين..
. رد الفعل الطبيعي: المخ بيبعت إشارة فورية بتخلي العين
تتحرك حركة لا إرادية
الغياب لو مفيش أي حركة، هذا معناه توقف رد فعل جذع المخ تماماً.
هو علامة مؤكده للموت خلاص
لكن هل نقوم بإزالة الأجهزة ؟
الموضوع حساس جداً، قانونياً وطبياً ودينياً والإجابة المختصرة هي: لأ ما بنشيلش الأجهزة قانوناً هو توقف القلب والتنفس تماماً، وليس
"الموت الدماغي" فقط. طالما القلب لسه بينبض حتى لو
بمساعدة الأجهزة والأدوية الطبيب
ممنوع قانوناً إنه يفصل جهاز التنفس الصناعي لو عمل هكذا ممكن يواجه تهمة طبيب تهمة جنائية .

[Dr. AK 🇮🇳 @docakx]

Blood supply of the heart. It is called coronary circulation for a reason.

[Smart Science @SmartScience]

🚨 The natural compound that gives chili peppers their heat may hold the key to fighting skin cancer.

In a fascinating discovery for oncology, laboratory studies show that capsaicin—the active organic compound that gives chili peppers their signature spicy kick—possesses a remarkable ability to force human melanoma cells into programmed cell death, also known as apoptosis.

When applied to highly aggressive human melanoma cell lines, capsaicin acts as a molecular saboteur. It selectively triggers mitochondrial dysfunction and stimulates the production of reactive oxygen species, which fundamentally damages the cancer cells from the inside out.

This process activates key executioner enzymes, like caspase-3 and PARP, which systematically dismantle and destroy the cancerous structures.

Furthermore, the compound targets a tumor-associated protein called tNOX, suppressing a crucial helper protein known as SIRT1 and halting cancer growth. While capsaicin initially triggers autophagy—a cellular survival mechanism where cells consume their own damaged parts—inhibiting this response actually makes the cancer-killing effects of capsaicin even stronger. However, researchers emphasize that while these findings in cell lines and animal models are incredibly promising, capsaicin is not yet an approved clinical treatment for melanoma in humans. Still, mapping out these intricate molecular pathways opens up exciting new doors for developing targeted nutraceutical therapies that could one day work alongside traditional skin cancer treatments.

source: Islam, A., Hsieh, P. F., Liu, P. F., & Chueh, P. J. (2021). Capsaicin exerts therapeutic effects by targeting tNOX-SIRT1 axis and augmenting ROS-dependent autophagy in melanoma cancer cells. American Journal of Cancer Research, 11(9), 4199-4219.

[Virginio Gallardo @virginiog]

Plataformas legales para potencianciar lectura, descargar o leer libros gratis
Principalmente dominio público, clásicos de la literatura universal, material académico y obras con licencias abiertas

[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.

[Virginio Gallardo @virginiog]

Otro, estudio, este de NeuroImage (2026), muestra que la siesta restaura la neuroplasticidad sináptica en la corteza humana
Tendría impacto en la consolidación de la memoria y la capacidad de aprendizaje Se reduce el "ruido" sináptico acumulado https://t.co/5oQTVwlmXG

[Enséñame de Ciencia @EnsedeCiencia]

🔥 El momento más temido de todos…

Lo que ves aquí no es cualquier cosa: es el instante en que el cáncer se vuelve imparable, la metástasis.

🔬 Esas pequeñas células señaladas con la flecha son las rebeldes del cuerpo. Se han separado del tumor original y ahora viajan con un solo propósito: conquistar nuevos territorios. Primero invaden los tejidos cercanos… y después se cuelan en la sangre o el sistema linfático.

⚠️ Cuando logran entrar en circulación, ya no hay fronteras: se convierten en viajeros silenciosos, semillas de destrucción listas para sembrar tumores en órganos vitales.

💔 Este es el verdadero giro oscuro del cáncer: cuando deja de ser un enemigo localizado y se transforma en una guerra que se libra en todo el organismo. 😢