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Fictive image.
The Dornier Do 335 Pfeil ("Arrow") was a World War II heavy fighter built by the Dornier company. The Pfeil??'?s performance was much better than other twin-engine designs due to its unique "push-pull" layout and the much lower aerodynamic drag of the in-line alignment of the two engines.
This build is a minifig model of this famous aircraft. Stable build, playable as well with retractable gears.
During our trip this weekend, this momma Great Horned Owl was watching over her brood.
Along with 10 other fellow photographers, we went to Grand Teton National Park the last 3 days. Jeff Clow hosted a marvelous event. If you've never seen Jeff's photostream, please stop by! He is an amazing photographer and gracious host. I had a blast shooting next to some amazing and talented individuals! Thanks so much and I hope to see all your posts soon!
Mistério a parte, a genética às vezes surpreende. Um olho castanho e outro verde...
Genetic sometimes surprises us... One brown and other green eye!
VelhoJR
Cognitive neuroscientists consider memory as the retention, reactivation, and reconstruction of the experience-independent internal representation. The term of internal representation implies that such definition of memory contains two components: the expression of memory at the behavioral or conscious level, and the underpinning physical neural changes. The latter component is also called engram or memory traces. Some neuroscientists and psychologists mistakenly equate the concept of engram and memory, broadly conceiving all persisting after-effects of experiences as memory; others argue against this notion that memory does not exist until it is revealed in behaviour or thought .
One question that is crucial in cognitive neuroscience is how information and mental experiences are coded and represented in the brain. Scientists have gained much knowledge about the neuronal codes from the studies of plasticity, but most of such research has been focused on simple learning in simple neuronal circuits; it is considerably less clear about the neuronal changes involved in more complex examples of memory, particularly declarative memory that requires the storage of facts and events.
Encoding. Encoding of working memory involves the spiking of individual neurons induced by sensory input, which persists even after the sensory input disappeares. Encoding of episodic memory involves persistent changes in molecular structures that alter synaptic transmission between neurons. Examples of such structural changes include long-term potentiation (LTP) or spike-timing-dependent plasticity (STDP). The persistent spiking in working memory can enhance the synaptic and cellular changes in the encoding of episodic memory (Jensen and Lisman 2005).
Working memory. Recent functional imaging studies detected working memory signals in both medial temporal lobe (MTL), a brain area strongly associated with long-term memory, and prefrontal cortex (Ranganath et al. 2005), suggesting a strong relationship between working memory and long-term memory. However, the substantially more working memory signals seen in the prefrontal lobe suggest that this area play a more important role in working memory than MTL (Suzuki 2007).
Consolidation and reconsolidation. Short-term memory (STM) is temporary and subject to disruption, while long-term memory (LTM), once consolidated, is persistent and stable. Consolidation of STM into LTM at the molecular level presumably involves two processes: synaptic consolidation and system consolidation. The former involves a protein synthesis process in the medial temporal lobe (MTL), whereas the latter transforms the MTL-dependent memory into an MTL-independent memory over months to years (Ledoux 2007). In recent years, such traditional consolidation dogma has been re-evaluated as a result of the studies on reconsolidation. These studies showed that prevention after retrieval affects subsequent retrieval of the memory (Sara 2000). New studies have shown that post-retrieval treatment with protein synthesis inhibitors and many other compounds can lead to an amnestic state. These findings on reconsolidation fit with the behavioural evidence that retrieved memory is not a carbon copy of the initial experiences, and memories are updated during retrieval.
First (full) wedding I've shot so far. A lot of fun and a lot of work. I'm glad I could capture this with 2 other photographers in the way..
Well, it’s the 1st of the month so either I go with this morning’s sunrise or I have to pull out the archive. (I archive every month’s pictures onto an external hard drive on the last day of the month.) I guess this will do.
Just think, a month ago the Sun was rising out of the frame on the right. It’s always surprising how much it moves.
From the overlook at Monte Sano State Park.
Nikon D7500 — Nikon 18-300mm F6.3 ED VR
70mm
F8@1/40th
ISO 400
GND filter
DSB_9387.JPG
©Don Brown 2026
You've got some spinach on your teeth?
Attempt nr 2 with the rogz grinz ball.
I promise I won't bother you too much with it, not with Pr1mo anyway.
Jornada fotográfica do grupo umcertoolhar: Reflexos do Antigo na São Paulo Contemporânea. São Paulo, 18/03/2012.
Kodak Tri-X 400 (35mm)
D-76 (1+1) 9 min, 45 seconds at 20C
Dornier Do-27A-3.
On display at "Parque das Nações". Portuguese Air Force 50th anniversary commemorations.
June 2000.