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Various stretching exercises using a foam roller for runners and anyone into fitness.

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As hundreds of motorists take to the desert, their tracks damage the massive geoglyphs made by Indigenous groups in northern Chile

The development of ultrashort X-ray pulse sources requires optics that keep the pulse length as short as possible. One source of pulse stretching is the penetration of the pulse into a crystal during diffraction. Another source is the inclination of the intensity front when the diffraction is asymmetric. The theory of short X-ray pulse diffraction has been well developed by many authors. As it is rather complicated, it is sometimes difficult to foresee the pulse behavior (mainly stretching) during diffraction in various crystal arrangements. In this article, a simple model is suggested that gives a qualitatively similar shape to the diffracted pulse which follows from exact theory. It allows proposal of what experimental arrangement is optimal to minimize the pulse stretching during diffraction. First, the effect of pulse stretching due to penetration into a crystal surface is studied. On the basis of this, the pulse profile change during diffraction by two crystals, either symmetric or asymmetric, is predicted.

In this article, the effect of stretching of short X-ray pulses after symmetric or asymmetric diffraction on crystal systems is studied. This is used to determine the optimal experimental arrangement to minimize the pulse stretching during diffraction.

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Employers nationwide face critical decisions about their health benefits program. Should they continue funding their employees' health benefits at the same contribution level as in the past? Should they keep the same level of benefits as before? What can be done to minimize costs and maximize benefits?

A stretching and exercise device has a first strap member having a pair of end portions, a second strap member having a pair of end portions, and a pair of resistance members connected between respective end portions of the first and second strap members. A third strap member has a pair of end portions attached to respective first and second surface portions of the second strap member. A fourth strap member is attached to a third surface portion of the second strap member different from the first and second surface portions thereof.

A stretching device that enables a user to employ the mechanical advantage of a multi-pulley system while performing various, prolonged muscle stretches; the stretching device including a first anchor assembly, a second anchor assembly, and a motion transfer line. The first motion transfer line has a first anchor body and a first motion transfer pulley; the first anchor body being attached to the user and the first motion transfer pulley being coupled to the first anchor body. Similarly, the second motion transfer line has a second anchor body and a second motion transfer pulley; the second anchor body being attached to a stationary object and the second motion transfer pulley being coupled to the second anchor body. The motion transfer line is terminally attached to the first anchor body and is trained around both the first motion transfer pulley and the second motion transfer pulley.

A dynamic stretching, strengthening and stabilization device is provided for postural correction and retraining. The device has a pair of closed loop resistance tubes and a central harness member which positions the closed loop resistance tubes roughly in the form of a FIG. 8. Each loop of the resistance tube is sized to accommodate the arm and shoulder of the user. The device may be used in a stabilization mode or stretching/strengthening mode, and transitions easily between these modes to correct and retrain the user's posture.

A stretching system to stretch a canvas or material on a frame without the use of stretching pliers and staples. Special purpose corner clamps are used to secure the stretcher bars into an initial open miter frame to orient the double sided adhesive strip on the side of the stretchers towards the canvas or material while maintaining the adhesive strip from touching the canvas or material. After alignment, the stretching bars are pressed down and attached onto the canvas or material and the corners are released. The corner clamps are removed and canvas or material corners are cut and folded into the open miter ends which also have adhesive strips. By rotating the stretchers axially 90 degrees into the final frame, thus closing the miters, and upon inserting U-shaped fasteners into the grooves placed on the back of the stretcher, the canvas or material is stretched and ready to display.

A device for stretching webs of material transversely to a travel direction thereof, includes at least one rotary stretcher extending transversely to the travel direction of the web of material. The stretcher is composed of at least two round tubes which are aligned axially with each other and are supported by ball-and-socket joints on links. The links are mounted adjustably on a base frame.

Clipping both right and left side edge parts of a sheet or film by right and left pitch-variable clips having flow-directional clip pitches variable along with travel movements, respectively, having positions (AR, AL) for initiation of enlargements of flow-directional clip pitches changed between right clips and left clips, and enlarging flow-directional clip pitches along with travel movements of clips to thereby make an oblique stretch.

A stretching assembly for cloth has a heating furnace, a pressing device and a shaping device. The heating furnace has two opposite sidewalls and a channel. The channel is formed through the opposite sidewalls of the heating furnace and has an inlet and an outlet. The pressing assembly is set to face the inlet of the heating furnace and has a first pressing wheel and a second pressing wheel. The first pressing wheel has multiple annular protruding segments formed on an external surface of the first pressing wheel. The second pressing wheel parallel the first pressing wheel to form a curved clearance between the pressing wheels and has multiple annular concave segments formed on an external surface of the second pressing wheel. The shaping device is set to face the outlet of the heating furnace, aligns with the pressing device and has two shaping wheels.

Provided is a method for manufacturing a high-quality porous film. Here, while the porous film is being manufactured through forming micropores by stretching, a raw film is prevented from slipping on the surfaces of the respective rolls as much as possible even though the raw film includes oil or liquid paraffin as a solvent. The method is for manufacturing a porous film through forming micropores by successive biaxial stretching. A tensile force applied to the raw film F transferring from the longitudinal stretching machine (10) to the transverse stretching machine (50) is set not less than a stretching force necessary for the longitudinal stretching, and thus the raw film is prevented from slipping on a contact surface between the raw film and each roll of the longitudinal stretching machine (10).

Clipping both right and left side edge parts of a sheet or film by right and left pitch-variable clips having flow-directional clip pitches variable along with travel movements, respectively, having positions (AR, AL) for initiation of enlargements of flow-directional clip pitches changed between right clips and left clips, and enlarging flow-directional clip pitches along with travel movements of clips to thereby make an oblique stretch.

Updated on April 13 at 5:06 p.m. ET Forget living paycheck to paycheck. Many families have lost work during the pandemic and are running out of cash as they wait for unemployment checks and government rescue money to arrive. These are highly unusual times, and family budgeting recommendations are also unconventional. Kathy Hauer, a financial planner based in Aiken, S.C., says she's telling people to do things she has never recommended before: "Defer as many payments as possible and worry about it later." But, she says, don't just ignore all the bills. Make sure to call all the companies and ask for forbearance — either a delayed payment or a new payment plan. This is an especially hard time for lower-income families who don't have a lot of wiggle room in their budgets, Hauer says. They may not be able to borrow money from other family members. If they have bad credit, they can't qualify for personal loans from banks. Many also don't have credit cards or are close to maxing those out.

Business and government insiders say other companies and organizations are contemplating similarly extended time frames as they consider the new realities of the workplace in the COVID-19 era.

Business and government insiders say other companies and organizations are contemplating similarly extended time frames as they consider the new realities of the workplace in the COVID-19 era.

Business and government insiders say other companies and organizations are contemplating similarly extended time frames as they consider the new realities of the workplace in the COVID-19 era.

This bunny wants to remind you that when stretching it's important to work your whole body. It's easy to forget and neglect important squee features like ears and tongue!

-Sally Squeeps

Hello, i have a logic output from a D-flipflop which generates a reset signal with variable pulse width. I want to stretch this LOW pulse width with an extra 100ns added to the original pulse width digitally, is there any way to do that?

Einstein’s theory of relativity predicts that fast-spinning objects stretch space and time around them, and we’ve watched that effect make a pair of stars wobble