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"Lift"
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Machines go to work
Presents descriptions and diagrams of heavy machinery such as bulldozers, fire trucks, and backhoes.
Book
Count lifts of non-maximal closed horocycles on SLN(Z)(R)/SON(R)
A closed horocycle U on SLN(Z)(R)/SON(R) has many lifts to the universal cover SLN(R)/SON(R). Under some conditions on the horocycle, we give a precise asymptotic count of its lifts of bounded distance away from a given base point in the universal cover. This partially generalizes previous work of Mohammadi–Golsefidy.
Journal Article
Baby first words!
This chunky board book features interactive pictures of first-word objects hiding under inviting flaps -- a pair of socks, a pair of shoes, a hat and coat, an apple, a carrot, a slice of toast under a bowl, and more.
Book
Advances in Face-Lift Surgical Techniques: 2016–2021
Background
Face-lift surgery is the most crucial and constantly evolving technique of facial rejuvenation. Periodic reviews synthesizing the latest face-lift techniques may help surgeons sharpen their surgical procedures.
Methods
A literature search was conducted of the PubMed databases using the search term “face lift” and “rhytidectomy.” Articles reporting rhytidectomy of the forehead/brow, midface, lower face, and neck were included. Sixty-nine articles were selected after independent screening by three of the authors. The Oxford Centre for Evidence-based Medicine scale was used for evaluating evidence level.
Results
Of the 69 candidate articles, 10 studies (15%) reported techniques of neck lifting; 10 studies (15%) introduced techniques of endoscopic brow lifting; 7 studies (10%) pertained to brow lifting without endoscopic techniques. The most frequently reported locations of rhytidectomy were the brow/forehead (20%), neck (19%), and face-neck (17%). Additionally, articles regarding Asian face-lifts (14%) have been increasing. The evidence level of the articles was generally low, with only 10 articles assessed as level 1–3 with 59 articles as level 4–5.
Conclusions
Face-lift articles with high-level evidence are still lacking. Prominently, forehead lifting and neck lifting have become upward trends of rhytidectomy in recent years, and the techniques of short-scar face-lift have been more valued.
Level of Evidence III
This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors
www.springer.com/00266
.
Journal Article
Water acquisition, sharing and redistribution by roots: applications to agroforestry systems
Aims
In the face of problems caused by ‘intensive agriculture’ dominated by large areas of monocultures, mixed intercropping mimicking natural ecosystems has been reported to constitute a viable solution to increase and stabilize productivity. When designing such systems, root niche separation was thought to be a prerequisite to optimize production.
Methods
This paper reviews the beneficial and adverse effects of trees and crops on water acquisition and redistribution in agroforestry ecosystems using the concepts of competition and facilitation between plants in link with root functional traits.
Results
The results of the review showed that the reality was more complex leading agroforestry practitioners to adopt management practices to induce a separation in root activities thus avoid competition, particularly for water. Water uptake by plant roots is triggered by the water potential difference between the soil and the atmosphere when leaf stomata are open and depends largely on the root exploration capacity of the plant. Thus, root water uptake dynamics are strongly related to root-length densities and root surface areas. In addition, plants with deep roots are able to lift up or redistribute water to the upper layers through a process known as hydraulic lift, potentially acting as “bioirrigators” to adjacent plants. The redistributed water could be of importance not only in regulating plant water status, e.g. by enhancing transpiration, but also in increasing the survival and growth of associated crops in mixed systems.
Conclusions
Even though some more work is still needed to assess the volume of water transferred to neighbors, hydraulic lift could constitute an ecological viable mechanism to buffer against droughts and ensure productivity in regions with erratic rainfall. Giving the difficulty in measuring the above-mentioned aspects in the field, modeling of some of the most relevant parameters to quantify them might inform the design of future empirical studies.
Journal Article
A High Lift Test System Based on Wing Deformation
In the existing ground verification test of the high lift system, the flap and slat support structure and transmission system support structure are firmly connected with the fixed test platform, which cannot simulate the effect of real wing deformation on the high lift system. In this paper, a series of lifting devices are used to replace the flap and slat structure and transmission shaft mounting surface on the real wing. Through the position control of the lifting devices, the position change of the mounting surface can be realized, which can better simulate the influence of the real wing deformation on the high lift system.
Journal Article
Who's hungry?
The animals are all hungry. Can you help them find something tasty to eat? Flip the flaps and feed them in this endlessly satisfying and scrumptious interactive flap book for very young children.
Book
Reverse Knot Technique for Face Lifting With Polydioxanone Thread
Background The use of polydioxanone thread has grown substantially for facial soft‐tissue repositioning and collagen biostimulation, with a well‐established safety profile and favorable tissue integration. Aims To describe the reverse knot technique, a novel method for the implantation of polydioxanone suspension threads. Patients/Methods We present an original polydioxanone thread‐lifting technique designed primarily for patients with a “heavy face.” The reverse knot technique positions the knot in the anterior portion of the face, below the zygomatic cutaneous ligament, whereas anchoring the distal end of the thread in the temporal fascia, creating a lever mechanism that enhances lifting of the middle and lower thirds of the face. Conclusions The technique provides immediate and effective midface soft‐tissue support, representing a minimally invasive alternative for face lifting and resulting in high patient satisfaction and minimal morbidity. The procedure should be performed by professionals experienced in thread lifting, as positioning the knot in the medial portion of the face increases support but also raises the risk of localized depressions at the knot site.
Journal Article