Preparation of glucosamine by hydrolysis of chitosan with commercial α-amylase and glucoamylase

Objective  

In order to overcome the defects of chemical hydrolysis approach to prepare glucosamine, an enzymatic hydrolysis method was developed.     

Organizing youth work(ers) through the paradox of play

A recent focus among communication scholars, the study of contradiction and paradox illuminates the inherent irrationality of organizing. The following case study examines how youth labor – cast as play – functions as a series of tensions and contradictions in the day-to-day construction of work(er) between adults and youth. Mirroring the popular reality TV show, The Apprentice, the program under study communicated contradictory messages about youth work(ers) in terms of: (1) proving/discounting oneself as worker, (2) demanding confidence while orchestrating uncertainty and (3) playing along versus being playful in the organizationally prescribed framework, effectively dismissing work(ers) essential to the functioning of the organization. My analysis demonstrates how the framing of youth’s work as a game delegitimized youth work(ers) resulting in potentially exploitative working conditions, and serves as a call to communication scholars to better account for youth as workers, while pointing to similar implications for other types of provisional and contingent work(ers).     

An Entrance for the Uninterested: Who Watches Soft News and How Does It Affect Their Political Participation?

As soft news shows in television present politics in an entertaining format, they are likely to attract and grab the attention of people who do not have a high interest in politics. Consequently, soft news might mobilize these citizens to engage in politics. This study tests this potential by using a 2-wave panel survey among a national sample of voters (N = 2,680) collected in relation to the 2015 National Election in Denmark. The results show that people with lower political interest were indeed more likely to increase their use of soft news during the election campaign and that, as a consequence, these low-motivated people also increased their passive participation, such as seeking additional information about the election. Further, the results show that this type of passive participation is likely to function as a stepping-stone to active forms of participation, such as attending political events or contacting politicians.     

Learning in Action: How Competent Professionals Learn

The studies pertaining to expertise development are diverse and broad (Bjork, 1994; Einstein & McDaniel, 2005; Schneider, Healy, & Bourne, 2002), yet empirical research that bridges expertise development into instructional design theories is still in its very formative stages (Ertmer et al., 2008; Fadde, 2009). This article is intended to identify the instructional principles that are effective in accelerating the performance of journeymen, considering the significant impact of the journeyman stage and the need for hastening performance in that stage. With the introduction to the major scholarly works and principles that have led to the elaboration of training methods, strategies, and materials, this review of literature proposes a learning model that has four components: (1) development plan, (2) action, (3) reflection‐on‐action, and (4) remedies.     

Parental Cultural Socialization of Mexican‐American Adolescents’ Family Obligation Values and Behaviors

The current study examined how parents’ cultural socialization efforts contribute to adolescents’ family obligation values and behaviors and how these processes may depend upon the relational climate at home. Utilizing survey and daily diary methodologies, 428 Mexican‐American adolescents (50% males; M_age = 15 years) and their parents (83% mothers; M_age = 42 years) participated in the study. Adolescents reported on their family obligation values and engagement in family assistance tasks across 14 days. Parents reported on their cultural socialization practices. Results indicated that parental cultural socialization was associated with adolescents’ family obligation values and behaviors when parent–child relationships were low in conflict and high in support. Findings suggest that the transmission of cultural values and practices is best facilitated through positive parent–child relationships.     

Consider Your Man Card Reissued: Masculine Honor and Gun Violence

In this article, Amy Shuffelton addresses school shootings through an investigation of honor and masculinity. Drawing on recent scholarship on honor, including Bernard Williams's Shame and Necessity and Kwame Anthony Appiah's The Honor Code, Shuffelton points out that honor has been misconstrued as exclusively a matter of hierarchical, competitive relationships. A second kind of honor, which exists within relationships of mutual respect between equals, she suggests, merits theorists' further consideration. In its hierarchical mode, honor is often a source of violent action, but honor in its egalitarian mode can play an important role in peacemaking. Shuffelton turns to Homer's Iliad and Adrienne Rich's “Women and Honor: Some Notes on Lying” to explore honor's potential. Linking both kinds of honor to masculinity and the issue of gun violence, this article contends that to address gun violence in and outside of schools, masculine honor needs to be “reissued” as a matter of egalitarian relationships based on honest communication.