The Twitter hashtag is a unique tagging format linking Tweets to user-defined concepts. The aim of the paper is to describe various applications of Twitter hashtags and to determine the functional characteristics of each application. Twitter hashtags can assist in archiving twitter content, provide different visual representations of tweets, and permit grouping by categories and facets. This st...

Social media activity in different geographic regions can expose a varied set of temporal patterns. We study and characterize diurnal patterns in social media data for different urban areas, with the goal of providing context and framing for reasoning about such patterns at different scales. Using one of the largest datasets to date of Twitter content associated with different locations, we exa...

•Enantiospecific interactions are probed using a functionalized AFM cantilever•A force difference of 70 pN between homo- and heterochiral pairs is obtained•The directional resulting from transient spin exchange interactions•Toy model calculations reveal the short range directionality Most biological molecules chiral. Interestingly, in life, they appear one chirality. This not trivial as most no...

s of selected papers abstracselectedpapersFrumkin15.htm/שדחה רתאל םיצבק/הקלחמה רתא/fle:///Y|/carmit[10/26/2016 11:59:45 AM] Publications (listed by date of publication) Hershkovitz, I., et al., 2015, Levantne cranium from Manot Cave (Israel) foreshadows the frst European modern humans. Nature, 520:216-219. Frumkin, A. Zaidner, Y., Na'aman, I., Tsatskin, A., Porat, N., Vulfson, L., 2015. Sagging...