Nape Attack

Nape attack is a stereotyped aggressive behavior in which an animal directs a bite or forceful contact toward the nape, or back of the neck, of another individual. In neuroscience, it provides an observable behavioral output for studying aggression and its neural control: sensory cues from a nearby conspecific can trigger orientation, pursuit, and a rapid attack sequence. Quantifying nape attacks alongside frequency, latency, and duration helps researchers compare social states and evaluate genetic or pharmacological manipulations. This behavioral readout links activity in brain circuits and neuromodulatory systems to the organization of natural social behavior.

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Education

JoVE Core - Civil Engineering

Acid Attack on Concrete

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2024

When acids come into contact with concrete, they initiate a chemical reaction that dissolves the hydrated cement paste. This process leads to softening and structural weakening of the concrete. This issue is commonly observed in environments such as chimneys, sewers, and industrial settings. The severity of the damage increases as the pH of the water interacting with the concrete drops below 6.5. In particular, a pH under 4.5 can cause significant concrete damage. The rate at which hydrogen...

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2024

In competitive marketing, companies strategically decide which competitors to challenge or avoid based on market share, product offerings, and operational efficiency. Attacking a competitor involves identifying exploitable weaknesses, such as poor customer service, outdated products, or inefficient processes. Smaller companies often successfully challenge larger firms by leveraging their agility, offering more responsive customer support or faster innovation cycles. For example, ride-sharing...

Sulfate Attack on Concrete

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2024

Sulfate attack on concrete is a deterioration process characterized by a whitish discoloration beginning at the edges and corners, accompanied by cracking and spalling. This phenomenon occurs when sulfates react with the components of hardened concrete, forming compounds like calcium sulfate and calcium sulfoaluminate which occupy more space than the substances they replace, causing the concrete to expand and disrupt. Sulfates from sources like soil, groundwater, or industrial effluents...

Transient Ischemic Attack l: Introduction

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2026

A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...

Research

JoVE Journal - Neuroscience

Peering into the Dynamics of Social Interactions: Measuring Play Fighting in Rats

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Cited by 82 •

2013

Play fighting in the rat involves attack and defense of the nape of the neck, which if contacted, is gently nuzzled with the snout. Because the movements of one animal are countered by the actions of its partner, play fighting is a complex, dynamic interaction. This dynamic complexity raises methodological problems about what to score for experimental studies. We present a scoring schema that is sensitive to the correlated nature of the actions performed. Two experiments illustrate how these...

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