Push-block Technique
Push-block Technique - Related Videos
01:30
Cost‐Push Inflation II
0 Views •
2026
Cost-push inflation happens when the overall price level rises because production costs increase. It is explained using the AD-AS model. In the model, the vertical axis represents the overall price level, while the horizontal axis represents real GDP, or total output in the economy.Cost-push inflation begins on the supply side of the economy. Suppose global crude oil prices rise due to events like geopolitical tensions or a reduction in global supply. Since fuel is an important input used in...
01:25
Cost‐Push Inflation I
0 Views •
2026
Cost-push inflation occurs when businesses face rising production expenses and respond by increasing the prices of their goods and services. In this situation, inflation begins with higher costs rather than stronger consumer demand. As more firms experience these cost increases, the effects can spread throughout the economy.Every business relies on inputs to produce and deliver its products. These inputs may include labor, raw materials, energy, and transportation services. When the cost of an...
12:07
Preparing and Administering IV Push Medications
0 Views •
2017
Source: Madeline Lassche, MSNEd, RN and Katie Baraki, MSN, RN, College of Nursing, University of Utah, UT An intravenous (IV) push is the rapid administration of a small volume of medication into a patient's vein via a previously inserted IV catheter. Preparations for IV push administration are commonly provided in vials or ampules for withdrawal into a syringe. This method is used when a rapid response to a medication is required, or when the medication cannot be administered via the oral...
13:21
Chemically-blocked Antibody Microarray for Multiplexed High-throughput Profiling of Specific Protein Glycosylation in Complex Samples
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Cited by 6 •
2012
In this study, we describe an improved protocol for a multiplexed high-throughput antibody microarray with lectin detection method that can be used in glycosylation profiling of specific proteins. This protocol features new reliable reagents and significantly reduces the time, cost, and lab equipment requirements as compared to the previous procedure.
01:27
Drive-Reduction Theory: Push Theory of Motivation
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2025
Clark Hull's drive-reduction theory, introduced in the 1940s and 1950s and often termed the "push theory" of motivation, provides a framework for understanding how biological and learned drives influence behavior. Hull suggested that motivation originates from the need to alleviate physiological tension caused by unmet biological necessities. The theory proposes that when a basic need, such as hunger or sleep, goes unfulfilled, it creates an internal imbalance. This imbalance, or drive, pushes...
FAQs
The force needed to start movement and the force needed to keep it moving provide complementary evidence. Initiation reflects the threshold at which interfacial resistance is overcome, whereas sustained displacement reflects resistance during continued motion. Examining both values helps distinguish a surface that strongly holds the block initially from one that continues to resist movement, improving interpretation of environmental surface stability.
Moisture, flow, and treatment can alter the measured force by changing how stable or strongly attached the target material is at the surface. Controlled testing allows researchers to compare these effects rather than treating differences as simple sample variation. Such comparisons can show whether an environmental change strengthens or weakens surface resistance and may indicate altered susceptibility to movement.
A standardized block provides a consistent contact and loading element for each measurement. Keeping that component consistent makes differences in recorded force more meaningfully attributable to the environmental material or its condition, rather than to changes in the test object. This supports comparisons among samples and helps researchers evaluate relative interfacial strength under controlled conditions.
The procedure begins by positioning the standardized block against the target material. The block is then moved under controlled conditions while researchers record the force required to initiate displacement and, where relevant, the force needed to maintain it. Repeating the same measurement framework across environmental samples allows direct comparison of surface resistance and stability.
The technique is useful when researchers need to compare adhesion or surface stability among biofilms, sediments, or soils. Measurements can reveal how strongly a biofilm remains attached or how readily a sediment or soil surface resists movement. These results help characterize environmental interfaces whose stability may influence material transport, erosion, or contaminant behavior.
Recorded displacement forces provide a practical measure of how stable an environmental surface is under the tested conditions. Lower or higher resistance can be compared across samples or after moisture, flow, or treatment changes. Researchers can then relate those differences to the potential for surface movement, erosion, and associated changes in contaminant transport without relying only on visual assessment.