Abstract: Provided are certain derivatives of amphotericin B (AmB) characterized by reduced toxicity and retained anti-fungal activity. Certain of the derivatives are C16 urea derivatives of AmB. Certain of the derivatives are C3, C5, C8, C9, C11, C13, or C15 deoxy derivatives of AmB. Certain of the derivatives include C3? or C4? modifications of the mycosamine appendage of AmB. Also provided are methods of making AmB derivatives of the invention, pharmaceutical compositions comprising AmB derivatives of the invention, and methods of use of AmB derivatives of the invention.

Abstract: Methods and systems described in this disclosure are directed to authentication of calling parties. The authentication of calling parties applies to simultaneous voice and/or data communications with multiple parties over multiple electronic mediums including a variety of electronic devices. A user can continue to maintain a data exchange session with a representative of an entity offering the goods or services of interest to the user across more than one user device. In some embodiments, a user can invite other parties in a multi-party call involving the user and the representative. Various embodiments for multi-party and multi-device authentication mechanisms are described herein. In some embodiments, the system calculates an estimated call waiting time for a user to speak with the representative.

Abstract: An archery bow support has adjustable or movable jaws and adjustable legs to a permit a releasable attachment to a plurality of different types of bows for positioning the bow during a downtime or brief period of non use during a period of heavy use for the bow, to assist the archer with a rest period.

Abstract: A fueling valve for fueling a remote or radio-controlled vehicle or removing fuel therefrom has a sliding member in a cylinder to permit fuel to placed or removed from a vehicle as desired. Such a fueling valve greatly simplifies the transportation of the vehicle.