The Testing of Molasses: A Comparative Survey of the Methods of Analysis Used in the Sugar Industry

Molasses is a by-product of Sugar Factories and Refineries. In some sugar-producing countries where its disposal is a matter of great difficulty, it is literally a waste product. Where distilleries, however, are in close proximity to the factory, or where facilities for cheap transport to manufacturing centres are available, it is a material of considerable value. Molasses is the main source of industrial alcohol, and it is also used extensively in the preparation of cattle foods. The weight of molasses obtained as a result of the manufacture of sugar from cane is about 24%, of that of the sugar produced: in beet sugar manufacture, the corresponding quantity is about 20 per cent. On the basis of a world production in 1934 of 16 million tons of cane sugar and about 9 million tons of beet sugar, the total quantity of molasses available for industrial purposes is in the region of 5 1/2 million tons per annum. The molasses represents a loss of sucrose sustained in concentrating the juice, whether it be cane or beet, to the finished crystalline product, and therefore it is essential in order to draw up the factory balance sheet or "Sucrose Recovery and Loss Account", to know the exact amounts present of certain of its constituents. If the molasses is to be sold, or purchased, for manufacturing purposes at a price based on analytical tests, these tests become of paramount importance. No standard methods for the analysis of molasses have been universally adopted as yet. The determination of the water content in particular, is a problem that remains unsolved

Blockade of chemokine-induced signalling inhibits CCR5-dependent HIV infection in vitro without blocking gp120/CCR5 interaction.

BACKGROUND: Cellular infection with human immunodeficiency virus (HIV) both in vitro and in vivo requires a member of the chemokine receptor family to act as a co-receptor for viral entry. However, it is presently unclear to what extent the interaction of HIV proteins with chemokine receptors generates intracellular signals that are important for productive infection. RESULTS: In this study we have used a recently described family of chemokine inhibitors, termed BSCIs, which specifically block chemokine-induced chemotaxis without affecting chemokine ligands binding to their receptors. The BSCI termed Peptide 3 strongly inhibited CCR5 mediated HIV infection of THP-1 cells (83 +/- 7% inhibition assayed by immunofluoresence staining), but had no effect on gp120 binding to CCR5. Peptide 3 did not affect CXCR4-dependent infection of Jurkat T cells. CONCLUSION: These observations suggest that, in some cases, intracellular signals generated by the chemokine coreceptor may be required for a productive HIV infection

Who Pays for Dates? Following Versus Challenging Gender Norms

Chivalry dictates that on a “date,” the man pays, whereas egalitarian ideals suggest that gender should not determine who pays. We examined the extent to which people embrace or reject these competing notions. Unmarried heterosexual participants (N = 17,607) reported their behaviors and attitudes regarding who does and who should pay for dates on a survey posted on NBCNews.com. Although most men (74%) and women (83%) report that both members of the couple contribute to dating expenses after dating for 6 months, most men (84%) and women (58%) reported that men still pay more expenses. Many women (39%) wished men would reject their offers to pay and 44% of women were bothered when men expected women to help pay. Many women, however, were bothered when men won’t accept their money (40%). Nearly two thirds of men (64%) believed that women should contribute and nearly half of men (44%) said they would stop dating a woman who never pays. Nevertheless, the majority of men said they feel guilty when accepting women’s money (76%). These data illustrate how many people are resisting or conforming to traditional gender norms in one telling aspect of dating that historically was related to the male’s displaying benevolent sexism, dominance, and ability to fulfill breadwinner role during courtship

Australian Wheat for the Sponge and Dough Bread Making Process

Established and supported under the Australian Government’s Cooperative Research Centre Progra

What Keeps Passion Alive? Sexual Satisfaction Is Associated With Sexual Communication, Mood Setting, Sexual Variety, Oral Sex, Orgasm, and Sex Frequency in a National U.S. Study

Passion and sexual satisfaction typically diminish in longer-term relationships, but this decline is not inevitable. We identified the attitudes and behaviors that most strongly differentiated sexually satisfied from dissatisfied men and women who had been together for at least three years (N = 38,747). Data were collected in 2006 from cohabiting and married men and women via an online survey on a major national U.S. news website. The vast majority of these participants reported being satisfied with their sex life during their first six months together (83% W; 83% M). Satisfaction with their current sex life was more variable, with approximately half of participants reporting overall satisfaction (55% W; 43% M), and the rest feeling neutral (18% W; 16% M) or dissatisfied (27% W; 41% M). More than one in three respondents (38% W; 32% M) claimed their sex life was as passionate now as in the beginning. Sexual satisfaction and maintenance of passion were higher among people who had sex most frequently, received more oral sex, had more consistent orgasms, and incorporated more variety of sexual acts, mood setting, and sexual communication. We discuss implications of these findings for research and for helping people revitalize their sex lives

Debunking Lesbian Bed Death: Using Coarsened Exact Matching to Compare Sexual Practices and Satisfaction of Lesbian and Heterosexual Women

The current study examined the prevalence and correlates of over 50 sexual practices in a national survey of heterosexual and lesbian women in relationships. Coarsened exact matching was used to create comparable samples of heterosexual (n = 2510) and lesbian (n = 283) women on six demographic factors, including relationship length. Heterosexual and lesbian women were equally likely to be sexually satisfied (66% heterosexual women vs. 68% lesbian women). Compared to heterosexuals, lesbians were more likely to report having sex 0–1 times per month (11% vs. 23%) and were less likely to report having sex greater than once per month (89% vs. 77%). Among women who had been in relationships for longer than 5 years, heterosexual women were less likely than lesbian women to report having sex 0–1 times per month (15%; 42%). This steeper drop in sexual frequency among lesbian women than heterosexual women has pejoratively been labeled lesbian bed death. Rather than accept the label “lesbian bed death” as characterizing these sexual relationships, we turn our attention to what we call lesbian bed intimacies: the myriad ways that lesbian women incorporate behaviors promoting emotional connection, romance, and mood setting, as well as relying on a wide variety of specific sexual acts (e.g., use of sex toys) and sexual communication. Compared to heterosexual women, lesbian women were more likely to usually to always receive oral sex during sex in the past month (28%; 47%) and to use sex toys in the past year (40%; 62%). In their last sexual encounter, lesbian women were more likely to say “I love you” (67%; 80%), have sex longer than 30 min (48%; 72%), and engage in gentle kissing (80%; 92%). These intimacies likely help explain why sexual satisfaction was similar in these groups despite notable differences in sexual frequency

Debunking Lesbian Bed Death:Using Coarsened Exact Matching to Compare Sexual Practices and Satisfaction of Lesbian and Heterosexual Women

The current study examined the prevalence and correlates of over 50 sexual practices in a national survey of heterosexual and lesbian women in relationships. Coarsened exact matching was used to create comparable samples of heterosexual (n = 2510) and lesbian (n = 283) women on six demographic factors, including relationship length. Heterosexual and lesbian women were equally likely to be sexually satisfied (66% heterosexual women vs. 68% lesbian women). Compared to heterosexuals, lesbians were more likely to report having sex 0–1 times per month (11% vs. 23%) and were less likely to report having sex greater than once per month (89% vs. 77%). Among women who had been in relationships for longer than 5 years, heterosexual women were less likely than lesbian women to report having sex 0–1 times per month (15%; 42%). This steeper drop in sexual frequency among lesbian women than heterosexual women has pejoratively been labeled lesbian bed death. Rather than accept the label “lesbian bed death” as characterizing these sexual relationships, we turn our attention to what we call lesbian bed intimacies: the myriad ways that lesbian women incorporate behaviors promoting emotional connection, romance, and mood setting, as well as relying on a wide variety of specific sexual acts (e.g., use of sex toys) and sexual communication. Compared to heterosexual women, lesbian women were more likely to usually to always receive oral sex during sex in the past month (28%; 47%) and to use sex toys in the past year (40%; 62%). In their last sexual encounter, lesbian women were more likely to say “I love you” (67%; 80%), have sex longer than 30 min (48%; 72%), and engage in gentle kissing (80%; 92%). These intimacies likely help explain why sexual satisfaction was similar in these groups despite notable differences in sexual frequency.</p

Reduced Mobility of the Alternate Splicing Factor (Asf) through the Nucleoplasm and Steady State Speckle Compartments

Compartmentalization of the nucleus is now recognized as an important level of regulation influencing specific nuclear processes. The mechanism of factor organization and the movement of factors in nuclear space have not been fully determined. Splicing factors, for example, have been shown to move in a directed manner as large intact structures from sites of concentration to sites of active transcription, but splicing factors are also thought to exist in a freely diffusible state. In this study, we examined the movement of a splicing factor, ASF, green fluorescent fusion protein (ASF–GFP) using time-lapse microscopy and the technique fluorescence recovery after photobleaching (FRAP). We find that ASF–GFP moves at rates up to 100 times slower than free diffusion when it is associated with speckles and, surprisingly, also when it is dispersed in the nucleoplasm. The mobility of ASF is consistent with frequent but transient interactions with relatively immobile nuclear binding sites. This mobility is slightly increased in the presence of an RNA polymerase II transcription inhibitor and the ASF molecules further enrich in speckles. We propose that the nonrandom organization of splicing factors reflects spatial differences in the concentration of relatively immobile binding sites