Pointed end

Zipfel, m, tip, point, end, summit lobe, ear, Zirbel-. (Anat.) pineal, -drtise, /. pineal gland, pineal body, -ficlite, -kiefer, /, Swiss pine (Pinua cembra). -nuBB, /. cedar nut (from Pinua cembra). zirka, adv. about, approximately. zifkaBBisch, a. Circassian. 

Bernoulli and Euler dominated the mechanics of flexible and elastic bodies for many years. They also investigated the flow of fluids. In particular, they wanted to know about the relationship between the speed at which blood flows and its pressure. Bernoulli experimented by puncturing the wall of a pipe with a small, open-ended straw, and noted that as the fluid passed through the tube the height to which the fluid rose up the straw was related to fluid s pressure. Soon physicians all over Europe were measuring patients blood pressure by sticking pointed-ended glass tubes directly into their arteries. (It was not until 1896 that an Italian doctor discovered a less painful method that is still in widespread... 

D-86 is a common ASTM test method that measures the boiling point of light liquid hydrocarbons at various volume percent fractions. The sample is distilled at atmospheric pressure, provided its final boiling point (end point) is less than 750°F. 

Mesalamine—Swallow tablets whole do not chew them. For the suppository, remove foil wrapper and immediately insert tiie pointed end into the rectum without using force. For tiie suspension form, instructions are included with the product. Shake well, remove the protective sheath from the applicator tip, and gently insert the tip into the rectum. Partially intact tablets may be found in the stool if this occurs, notify the primary health care provider. 

Pointed-end-capping proteins are acumentin (65 kD), spectrin (220-260 kD), and p-actinin (37 kD). They also regulate the length of actin filaments. 

Illustration Stretching of low-viscosity-ratio elongated drops. For the case p < 1 and Ca/Cacnt = 0(1), the dynamics of a nearly axisymmetric drop with pointed ends, characterized by an orientation m ( m = 1) and a length L(t), is given by (Khakhar and Ottino, 1986b,c)... 

Although the standard shape of capsules is the traditional, symmetrical, generally cylindrical shape, some manufacturers have employed distinctive proprietary shapes. Lilly s PulvuleR is designed with a characteristic body section that tapers to a bluntly pointed end. Smith Kline Beacham s SpansuleR capsule exhibits a characteristic taper at both the cap and body ends. 

From the paths in TECS) we can select the set (a, ...,a containing all and only consistent paths which start at a tagged point, end at a tagged point and otherwise do not pass through any tagged point. Suppose each cm starts at t and ends at r (in some cases we have t = r ). Then we define W(P) as the well-formed formula ... 

Figure 4.4. Structure of actin filaments (a) shows the beads on a string appearance of an actin filament. This filament comprises actin monomers, which themselves have a polarity, so that they can only assemble head to tail , as shown in (b) thus, the actin filament is polarised, having a barbed and a pointed end.

Thus, assembly of actin filaments may occur at the pointed ends during phagocytosis, but at the barbed ends during locomotion. 

Roll the 1/4 piece of filter paper into a tight cone. This will act as a wick to draw the ink. Work the pointed end of the wick into the hole in the center of the round filter paper. 

To use a short-term detector tube for measurement of instantaneous concentration of a contaminant, the pointed ends are broken off and one end of the tube is inserted into a special hand pump supplied with the kit. The pump is then used to pump a specified amount of air through the tube. The technique is relatively simple and effective, although the results may not as precise as with more sophisticated methods. Depending on the contaminants and the conditions of use and the skill, there can be as much as a 25 percent error in some situations. 

For each of the following terms, write a sentence that shows your understanding of its meaning, equivalence point end-point... 

Figure 2 The actin-ADP-ribosylating toxins, (a) Molecular mode of action. The actin-ADP-ribosylating toxins covalently transfer an ADP-ribose moiety from NAD+ onto Arg177 of G-actin in the cytosol of targeted cells. Mono-ADP-ribosylated G-actin acts as a capping protein and inhibits the assembly of nonmodified actin into filaments. Thus, actin polymerization is blocked at the fast-growing ends of actin filaments (plus or barbed ends) but not at the slow growing ends (minus or pointed ends). This effect ultimately increases the critical concentration necessary for actin polymerization and tends to depolymerize F-actin. Finally, all actin within an intoxicated cell becomes trapped as ADP-ribosylated G-actin.

The biologically significant active space where the odor concentration is above threshold is shaped like an overturned boat (Fig. 1.4). (If the molecules were able to spread in all directions, as from an elevated odor source, the active space would assume the shape of a cylinder with pointed ends.)... 

The Tg of the neat thermoset was undetected. The triazlne network showed a small damping peak between -60 to -80 C. This was attributed to a beta transition due to rotation of the blsphenol-A unit. Other workers had reported glass transition points for the cured material at 2U °C. The conversions of those reactions were lower than encountered here. These results may indicate mobility of branch points ending with unreacted cyanates. 

Figure 2. Scheme for the addition and loss of actin-ATP or actin-ADP from the barbed and pointed ends of an actin filament. The barbed end is the faster growing and more stable end of an actin filament. While the exchange of actin-ADP with ATP to yield actin-ATP and ADP is shown here as a spontaneous process, the actin regulatory protein profilin greatly accelerates the exchange process. Note also that hydrolysis is thought to occur after (and not coincident with) addition of actin-ATP at either end. 

Figure 3. Critical concentration behavior of actin self-assembly. For the top diagram depicting the macroscopic critical concentration curve, one determines the total amount of polymerized actin by methods that measure the sum of addition and release processes occurring at both ends. Examples of such methods are sedimentation, light scattering, fluorescence assays with pyrene-labeled actin, and viscosity measurements. Forthe bottom curves, the polymerization behavior is typically determined by fluorescence assays conducted under conditions where one of the ends is blocked by the presence of molecules such as gelsolin (a barbed-end capping protein) or spectrin-band 4.1 -actin (a complex prepared from erythrocyte membranes, such that only barbed-end growth occurs). Note further that the barbed end (or (+)-end) has a lower critical concentration than the pointed end (or (-)-end). This differential stabilization requires the occurrence of ATP hydrolysis to supply the free energy that drives subunit addition to the (+)-end at the expense of the subunit loss from the (-)-end.

Temperature at the critical point (end of the vapor pressure curve in phase diagram) is termed critical temperature. At temperatures above critical temperature, a substance cannot be liquefied, no matter how great the pressure. Pressure at the critical point is called critical pressure. It is the minimum pressure required to condense gas to liquid at the critical temperature. A substance is still a fluid above the critical point, neither a gas nor a liquid, and is referred to as a supercritical fluid. The critical temperature and pressure are expressed in this text in -C and atm, respectively. 

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