AVL trees are more rigidly balanced than red-black trees, leading to slower insertion and removal but faster retrieval.

Deforestation, clearance or clearing is the removal of a forest or stand of trees where the land is thereafter converted to a nonforest use.

However in temperate climates, the removal of all trees in an area — in conformance with sustainable forestry practices — is correctly described as regeneration harvest.

Alternatively, when a self-balancing binary search tree is used, insertion and removal also take O ( log n ) time, although building trees from existing sequences of elements takes O ( n log n ) time ; this is typical where one might already have access to these data structures, such as with third-party or standard libraries.

It is more rigidly balanced than red – black trees, leading to slower insertion and removal but faster retrieval.

The use of palm oil in food products attracts the concern of environmental activist groups ; the high oil yield of the trees have led, in parts of Indonesia, to removal of forestry in order to make space for oil-palm monoculture.

Pruning long-neglected fruit trees is a task that should be undertaken over a lengthy period, with not more than one third of the branches that require removal being taken each year.

In these species ( which include many broadleaved trees but few conifers ), removal of the main apical stems releases the growth of many dormant buds under the bark on the lower part of the tree.

This law limits the number of trees that can be removed from any parcel in a given year and mandates compensatory planting for excessive tree removal.

The removal of trees causes higher rates of erosion, increasing risks of landslides, which is a direct threat to many people living close to deforested areas.

* The removal of all London plane trees and the installation of over 200 replacements of varying species.

In 2010, projects include renovating jogging tracks, and planting more than 800 trees including acacia café, pino azul, pno peñonero, holm oak, pino moctezuma, pino prieto and grevilia as well as the removal of dead or severely infected trees.

The removal of trees from savanna land removes the competition for water from the grasses present, and can lead to a two to fourfold increase in pasture production, as well as improving the quality of the feed available.

Since stock carrying capacity is strongly correlated with herbage yield there can be major financial benefits from the removal of trees.

The removal of trees also assists grazing management.

Human disturbance to its habitat is the main threat, both from direct human activity near nests which impacts on breeding success, and from removal of suitable trees for nesting.

One of these trees collapsed in Winter 2006, which led to the inspection and removal of three other trees in the vicinity.

* Arboriculture is the study of, and the selection, planting, care, and removal of, individual trees, shrubs, vines, and other perennial woody plants.

The mechanism for this behavior is not well known, but appears to be related to both the death of trees and the removal of organic material on the forest floor.

He did this by prohibiting any further removal of trees in a 12-mile long strip around the city.

In 2006, a Tree Management Plan recommended the removal of about 230 diseased trees, to be progressively replaced over time.

For example, an abstract stack data structure could be defined by three operations:, that inserts some data item onto the structure,, that extracts an item from it ( with the constraint that each pop always returns the most recently pushed item that has not been popped yet ), and, that allows data on top of the structure to be examined without removal.

The removal of dying cells by phagocytes occurs in an orderly manner without eliciting an inflammatory response.

The removal of beef from the recipe in 2004 was not without criticism, with many complaining that the new variant did not taste the same and had a different mouth feel.

The removal of unused components with no essential function, like the natural process where rock underneath a natural arch is removed, can produce irreducibly complex structures without requiring the intervention of a designer.

Placing minefields without marking and recording them for later removal is considered a war crime under Protocol II of the Convention on Certain Conventional Weapons, which is itself an annex to the Geneva Conventions.

It is then to be eaten " that night ", Nisan 15, roasted, without the removal of its internal organs with unleavened bread and bitter herbs.

The departure of the Boers and later removal of the remaining garrison in 1906 ( with the disbandment of the St Helena Volunteers, this was the first time the island was left without a garrison ) both impacted on the island economy, which was only slightly offset by growing philatelic sales.

Cleaning tips requires the removal of oxide without damaging the iron plating and exposing the copper to rapid corrosion.

Fins, scales, and bones of all but the largest of smelts are cooked without removal.

A perceived advantage of vi's separation of text entry and command modes is that both text editing and command operations can be performed without requiring the removal of the user's hands from the home row.

He called for the purification of English by removal of Greek, Latin and foreign influences so that it might be better understood by those without a classical education.

An early menopause can be related to cigarette smoking, higher body mass index, racial and ethnic factors, illnesses, chemotherapy, radiation and the surgical removal of the ovaries, with or without the removal of the uterus.

Removal of the uterus without removal of the ovaries, a hysterectomy, does not cause menopause, although pelvic surgery can often precipitate a somewhat earlier menopause, perhaps because of a compromised blood supply to the ovaries.

They are also used for shooting practice by hunters, by offering similar flight characteristics and weights as broadheads, without getting lodged in target materials and causing excessive damage upon removal.

It purported to deny the president the power to remove any executive officer who had been appointed by a past president, without the advice and consent of the Senate, unless the Senate approved the removal during the next full session of Congress.

Early estimates suggested that debris removal would take a year, but cleanup ended in May 2002, under budget and without a single serious injury.

It is a syndrome affecting arterial blood vessels, a chronic inflammatory response in the walls of arteries, caused largely by the accumulation of macrophage white blood cells and promoted by low-density lipoproteins ( LDL, plasma proteins that carry cholesterol and triglycerides ) without adequate removal of fats and cholesterol from the macrophages by functional high-density lipoproteins ( HDL ), ( see apoA-1 Milano ).

The Virgin Earth Challenge will award $ 25 million to the individual or group who are able to demonstrate a commercially viable design which will result in the net removal of anthropogenic, atmospheric greenhouse gases each year for at least ten years without countervailing harmful effects.

This may apply to decontamination after a chemical or biological attack, where removal of contaminated clothing is vital, or escaping from a night-time fire without time to dress.

The belief was that almost all traffic makes a return journey across the bridge, and that the removal of the southbound toll would result in a reduction of congestion for southbound traffic without reducing overall toll revenues.

The tracheal tube exchanger is a hollow catheter, in length, that can be used for removal and replacement of tracheal tubes without the need for laryngoscopy.

To facilitate prompt removal, fine-tipped tweezers can be used to grasp the tick as close to the skin as possible and detach it by applying a steady upward force without crushing, jerking or twisting, in such a way as to avoid leaving behind mouthparts or provoking regurgitation of infective fluids into the wound.

He built new trial levels without proper provision for the removal of overburden and pushed the limits of safe working in the existing chambers.