Abnormality in <i>Bagarius bagarius</i> (Ham.) (Cypriniformes: Sisoridae) from Nepal

Leftovers from the Ham Sandwich Theorem

The traditional proofisa clev eruseoftheBorsuk-Ulamtheorem;see[1,p.120] . As Munkresremarks[5,p.405] ,theham sandwic h theoremisnotelemen tary ,evenindimension2,whereitisknown asthebabyham sandwichtheorem. But isitreally sohard? Consider thefollo wing:\aplanethroughthecentresofgravit y ofeach ofthebodieswill dothetric k" [3,p.57].Unfortunately ,thiseductiv eargumentjustdoesn’t work:a plane thro...

Schistura obliquofascia, a new loach from Uttarakhand, India (Cypriniformes: Nemacheilidae)

A new nemacheilid loach, Schistura obliquofascia, is described from Kalsa, a stream near Chanfi, tributary of Gola River, Ganga basin in Uttarakhand, India. The new species is readily distinguished from congeners by the following combination of characters: 12–14 oblique olivaceous dark bars on the body and three rows of black spots on the dorsal fin; lateral line complete with 104–112 pores, do...

Chromosomal Abnormality in Men with Impaired Spermatogenesis

RAAGs in Ham

We prove that every RAAG (Right Angled Artin Group) embeds in the group of Hamiltonian symplectomorphisms of every symplectic manifold.

Oreoglanis hponkanensis, a new sisorid catfish from north Myanmar (Actinopterygii, Sisoridae)

During a survey of the Mali Hka River drainage in Hponkanrazi Wildlife Sanctuary in December 2015, a new species was collected and is described herein as Oreoglanis hponkanensis. It is a member of the Oreoglanis siamensis species group and can be distinguished from its congeners in having a unique combination of the following characters: lower lip with median notch and posterior margin entire, ...