* β-Lactams fused to saturated five-membered rings:

** β-Lactams fused to oxazolidine rings are named oxapenams or clavams.

* β-Lactams fused to unsaturated five-membered rings:

* β-Lactams fused to unsaturated six-membered rings:

* β-Lactams not fused to any other ring are named monobactams.

* β-Lactams fused to 2, 3-dihydrothiazole rings are named penems.

* β-Lactams fused to 2, 3-dihydro-1H-pyrrole rings are named carbapenems.

* β-Lactams fused to 3, 6-dihydro-2H-1, 3-thiazine rings are named cephems.

* β-Lactams not fused to any other ring are named monobactams.

** β-Lactams containing thiazolidine rings are named penams.

** β-Lactams containing pyrrolidine rings are named carbapenams.

** β-Lactams containing 2, 3-dihydrothiazole rings are named penems.

** β-Lactams containing 2, 3-dihydro-1H-pyrrole rings are named carbapenems.

** β-Lactams containing 3, 6-dihydro-2H-1, 3-thiazine rings are named cephems.

** β-Lactams containing 1, 2, 3, 4-tetrahydropyridine rings are named carbacephems.

** β-Lactams containing 3, 6-dihydro-2H-1, 3-oxazine rings are named oxacephems.

β-Lactams are classified according to their core ring structures.

β-Lactams cannot bind as effectively to these altered PBPs, and, as a result, the β-lactams are less effective at disrupting cell wall synthesis.

β-Lactams are classified according to their core ring structures.

Metallic antimony adopts a layered structure ( space group Rm No. 166 ) in which layers consist of fused ruffled six-membered rings.

For example, the nitrogen atom of all bicyclic β-lactams fused to five-membered rings is labelled position 4, as it is in penams, while in cephems, the nitrogen is position 5.

The nucleobases are classified into two types: the purines, A and G, being fused five-and six-membered heterocyclic compounds, and the pyrimidines, the six-membered rings C and T. A fifth pyrimidine nucleobase, uracil ( U ), usually takes the place of thymine in RNA and differs from thymine by lacking a methyl group on its ring.

Another large class of heterocycles are fused to benzene rings, which for pyridine, thiophene, pyrrole, and furan are quinoline, benzothiophene, indole, and benzofuran, respectively.

These molecules, composed primarily of fused rings of carbon ( either neutral or in an ionized state ), are said to be the most common class of carbon compound in the galaxy.

The core of steroids is composed of twenty carbon atoms bonded together that take the form of four fused rings: three cyclohexane rings ( designated as rings A, B, and C in the figure to the right ) and one cyclopentane ring ( the D ring ).

Polycyclic aromatic hydrocarbons are molecules containing two or more simple aromatic rings fused together by sharing two neighboring carbon atoms ( see also simple aromatic rings ).

Anthracene is a solid polycyclic aromatic hydrocarbon consisting of three fused benzene rings.

* Emil Erlenmeyer proposes that naphthalene has a structure of two fused benzene rings.

Phenanthrene is a polycyclic aromatic hydrocarbon composed of three fused benzene rings.

Pteridine is a chemical compound composed of fused pyrimidine and pyrazine rings.

Pentalene is a polycyclic hydrocarbon composed of two fused cyclopentadiene rings.

The dianion can also be considered as two fused cyclopentadienyl rings, and has been used as a ligand in organometallic chemistry to stabilise many types of mono-and bimetallic complexes, including those containing multiple metal-metal bonds, and anti-bimetallics with extremely high levels of electronic communication between the centers.

Naphthalene is the simplest such multi-ringed hydrocarbon, having the structure of two fused benzene rings.

All these functions, including the function of the healer-god Paean, who seems to have Mycenean origin, are fused in the cult of Apollo.

Anatomy and geometry are fused in one, and each does something to the other.

Their ribs are usually short and may be fused to the vertebrae.

The flowers are in the main not particularly distinctive, being of a general ' lily type ', with six tepals, either free or fused from the base.

The stamens are usually found around the style, either aggregated densely or fused into a tube, probably an adaptation in association with the plunger ( brush ; or secondary ) pollination that is common among the families of the order, wherein pollen is collected and stored on the length of the pistil.

This accompanied or facilitated other important evolutionary developments: the bilaterian body plan ; the coelom, an internal cavity that provided space for a circulatory system and, in some animals, formed a hydrostatic skeleton which enables worm-like animals to burrow ; metamerism, in which the body was built of repeated " modules " which could later specialize, for example the heads of most arthropods are composed of fused, specialized segments.

Rather, carinates are unique in having, for example, a globe-shaped, convex head on the humerus and fully fused bones in the lower leg and outer arm.

In the experimental post 1960s eras, which saw the development of free jazz and jazz-rock fusion, some of the influential bassists included Charles Mingus ( 1922 – 1979 ), who was also a composer and bandleader whose music fused hard bop with black gospel music, free jazz and classical music ; free jazz and post-bop bassist Charlie Haden ( born 1937 ) is best known for his long association with saxophonist Ornette Coleman and for his role in the 1970s-era Liberation Music Orchestra, an experimental group ; Eddie Gomez and George Mraz, who played with Bill Evans and Oscar Peterson, respectively, and are both acknowledged to have furthered expectations of pizzicato fluency and melodic phrasing, fusion virtuoso Stanley Clarke ( born 1951 ) is notable for his dexterity on both the upright bass and the electric bass, and Terry Plumeri, noted for his horn-like arco fluency and vocal tone.

Commentators argue that Husserl's notion of noema has nothing to do with Frege's notion of sense, because noemata are necessarily fused with noeses which are the conscious activities of consciousness.

The petals are often fused ( sympetalous ) with shapes ranging from narrowly tubular to funnelform or widely bowl-shaped.

The outer membrane is also continuous with the inner nuclear membrane since the two layers are fused together at numerous tiny holes called nuclear pores that perforate the nuclear envelope.

Eukaryotic flagella are supported by microtubules in a characteristic arrangement, with nine fused pairs surrounding two central singlets.

The main three are Type I, removal of the clitoral hood, almost invariably accompanied by removal of the clitoris itself ( clitoridectomy ); Type II, removal of the clitoris and inner labia ; and Type III ( infibulation ), removal of all or part of the inner and outer labia, and usually the clitoris, and the fusion of the wound, leaving a small hole for the passage of urine and menstrual blood — the fused wound is opened for intercourse and childbirth.

While fused quartz ( primarily composed of SiO < sub > 2 </ sub >) is used for some special applications, it is not very common due to its high glass transition temperature of over 1200 ° C ( 2192 ° F ).< ref > Normally, other substances are added to simplify processing.

Both sexes have prominent horn-like structures called ossicones, which are formed from ossified cartilage, covered in skin and fused to the skull at the parietal bones.

The genre still remains popular and fused into other subgenres which are popular, as the DJ mag poll has been dominated by House DJs since the beginning of the polls.

Medieval Song Dynasty painters such as Lin Tinggui and his Luohan Laundering ( housed in the Smithsonian Freer Gallery of Art ) of the 12th century are excellent examples of Buddhist ideas fused into classical Chinese artwork.

Their long legs and curved canine teeth are adapted for hunting small mammals, birds, and reptiles, and their large feet and fused leg bones give them a physique well-suited for long-distance running, capable of maintaining speeds of for extended periods of time.

According to this typology, some languages are isolating, and have little to no morphology ; others are agglutinative, and their words tend to have lots of easily separable morphemes ; while others yet are inflectional or fusional, because their inflectional morphemes are " fused " together.