We show the nonexistence of deep pockets in a large class of groups, extending a result of Bogopol’skĭi. We then give examples of important groups (namely lattices in Nil and Sol) which have deep pockets.

We construct new explicit proper biharmonic functions on the 3-dimensional Thurston geometries Sol, Nil, S̃L2(R), H 2 × R and

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The synthesis of proteins with affinity for DNA has been studied in clones of a Syrian hamster cell line (NIL) and subclones of this line transformed by polyoma virus (NIL-Py) or hamster sarcoma virus (NIL-HSV). The results show that the synthesis of DNA-binding proteins in NIL and in its virus-transformed derivatives NIL-Py and NIL-HSV is very similar in exponentially growing cells, but in den...

Informal language is actively used in network-mediated communication, e.g. chat room, BBS, email and text message. We refer the anomalous terms used in such context as network informal language (NIL) expressions. For example, “ (ou3)” is used to replace “ (wo3)” in Chinese ICQ. Without unconventional resource, knowledge and techniques, the existing natural language processing approaches exhibit...

Network Informal Language (NIL) refers to the special human language widely used in the community of digital network chat via platforms such as chat rooms/tools, mobile phone short message services (SMS), bulletin board systems (BBS), emails, etc. NIL holds anomalous characteristics in forming words, phrases, and non-alphabetical characters. This makes it difficult to handle NIL text by convent...

The synthesis of proteins with affinity for DNA has been studied in clones of a Syrian hamster cell line (NIL) and subclones of this line transformed by polyoma virus (NIL-Py) or hamster sarcoma virus (NIL-HSV). The results show that the synthesis of DNA-binding proteins in NIL and in its virus-transformed derivatives NIL-Py and NIL-HSV is very similar in exponentially growing cells, but in den...

background: all the three nitric oxide synthase (nos) isoforms are presented in the kidney. some data provided evidences that enos activity leads to restoration of renal function after injury, but activation of inos aggravates renal failure. in the present study, we investigated that whether in gentamicin-induced renal failure selective inos blockade is beneficial. materials and methods: four g...

ion Rules I Q ∗ lseg(E , x ′) ∗ lseg(x ′, nil) → Q ∗ lseg(E , nil) I side condition: x ′ not free in Q. I side condition for precision, not soundness: stops abstraction when x ′ is shared. x 7→x ′ ∗ lseg(E , x ′) ∗ lseg(x ′, nil) 6→ Q ∗ lseg(E , nil)