Adaptive information and animal behaviour: Why motorists stop at red traffic lights

Argues that information, in the animal behaviour or evolutionary context, is correlation/covariation. The alternation of red and green traffic lights is information because it is (quite strictly) correlated with the times when it is safe to drive through the intersection; thus driving in accordance with the lights is adaptive (causative of survival). Daylength is usefully, though less strictly, correlated with the optimal time to breed. Information in the sense of covariance implies what is adaptive; if an animal can infer what the information implies, it increases its chances of survival

Superintendent and School Board Relations: Impacting Achievement through Collaborative Understanding of Roles and Responsibilities

One of the most important and influential persons in the governance structure of the local school district is the Superintendent of Schools. Functioning as the CEO of the district, the superintendent is responsible for a myriad of functions. Examples include daily operations inclusive of transportation and finance, curriculum and policy implementation, media relations, and empowering leaders. However, as Meador (2014) contends, a crucial role is that of board liaison. The Superintendent is responsible for keeping the board informed, making recommendations regarding district operations, and setting the board agenda. It is interesting to note that the superintendent does participate in board meetings, but in an advisory capacity. Finally, the superintendent is responsible for enacting all mandates approved by the school board

Contribution of the antibiotic chloramphenicol and its analogues as precursors of dichloroacetamide and other disinfection byproducts in drinking water

Dichloroacetamide (DCAcAm), a disinfection byproduct, has been detected in drinking water. Previous research showed that amino acids may be DCAcAm precursors. However, other precursors may be present. This study explored the contribution of the antibiotic chloramphenicol (CAP) and two of its analogues (thiamphenicol, TAP; florfenicol, FF) (referred to collectively as CAPs), which occur in wastewater-impacted source waters, to the formation of DCAcAm. Their formation yields were compared to free and combined amino acids, and they were investigated in filtered waters from drinking-water-treatment plants, heavily wastewater-impacted natural waters, and secondary effluents from wastewater treatment plants. CAPs had greater DCAcAm formation potential than two representative amino acid precursors. However, in drinking waters with ng/L levels of CAPs, they will not contribute as much to DCAcAm formation as the μg/L levels of amino acids. Also, the effect of advanced oxidation processes (AOPs) on DCAcAm formation from CAPs in real water samples during subsequent chlorination was evaluated. Preoxidation of CAPs with AOPs reduced the formation of DCAcAm during postchlorination. The results of this study suggest that CAPs should be considered as possible precursors of DCAcAm, especially in heavily wastewater-impacted waters

An optimized analytical method for the simultaneous detection of iodoform, iodoacetic acid, and other trihalomethanes and haloacetic acids in drinking water

An optimized method is presented using liquid-liquid extraction and derivatization for the extraction of iodoacetic acid (IAA) and other haloacetic acids (HAA9) and direct extraction of iodoform (IF) and other trihalomethanes (THM4) from drinking water, followed by detection by gas chromatography with electron capture detection (GC-ECD). A Doehlert experimental design was performed to determine the optimum conditions for the five most significant factors in the derivatization step: namely, the volume and concentration of acidic methanol (optimized values  = 15%, 1 mL), the volume and concentration of Na2SO4 solution (129 g/L, 8.5 mL), and the volume of saturated NaHCO3 solution (1 mL). Also, derivatization time and temperature were optimized by a two-variable Doehlert design, resulting in the following optimized parameters: an extraction time of 11 minutes for IF and THM4 and 14 minutes for IAA and HAA9; mass of anhydrous Na2SO4 of 4 g for IF and THM4 and 16 g for IAA and HAA9; derivatization time of 160 min and temperature at 40°C. Under optimal conditions, the optimized procedure achieves excellent linearity (R2 ranges 0.9990–0.9998), low detection limits (0.0008–0.2 µg/L), low quantification limits (0.008–0.4 µg/L), and good recovery (86.6%–106.3%). Intra- and inter-day precision were less than 8.9% and 8.8%, respectively. The method was validated by applying it to the analysis of raw, flocculated, settled, and finished waters collected from a water treatment plant in China

COMPETING RISKS IN THE SUBURBANIZATION OF AGRICULTURAL LAND

The rapid change in the character of land use in traditional agricultural regions of the Midwest has led to public concern in recent years. As a result, policy makers have attempted to forge novel ways to cope with problems associated with loss of farmland and the encroachment of urban/suburban sprawl. Some of the policies that have been implemented or suggested in a number of jurisdictions include purchase of development right programs, impact fees, agricultural zoning, and preferred tax treatment for agricultural land uses, among others. In this paper, we explore the forces that promote land use change in order to help public officials make informed decisions on policy implementation.Land Economics/Use,

Fair Trials? The Manual for Military Commissions in Light of Common Article 3 and Other International Law

The United States Department of Defense initiated military commissions as authorized by the Military Commissions Act ( MCA ) of 2006 to try unlawful enemy combatants detained in the course of the War on Terror. 1 Enacted on October 17, 2006, the MCA\u27s specific purpose is to try alien unlawful enemy combatants engaged in hostilities against the United States for violations of the law of war and other offenses triable by military commission. 2 Congress passed the MCA as a renewed attempt at convening military commissions in response to the Supreme Court\u27s ruling in Hamdan v. Rumsfeld, 3 where the Court held that the President\u27s initial attempt at trying detainees 4 before military commissions was not authorized either by congressional power or the President\u27s war powers.

Principals as Instructional Leaders: An Embedded Descriptive Case Study of One Rural School\u27s Effort to Improve Student Outcomes Through Reading Plus

The purpose of this descriptive embedded case study is to address a reading literacy problem at a rural school district through a principal’s instructional leadership and to determine whether student outcomes improved. Campus principals are tasked with the responsibility of ensuring every student receives high-quality instruction that aligns with research-driven best practices by implementing current interim assessment cycles to track classroom trends and determine appropriate interventions (Texas Administrative Code [TAC §149.2001.]). However, the manner in which the principal influences student achievement varies based on leader capacity and school setting. While leadership in rural settings is as diverse as the community being served, teacher instruction in rural schools can be positively impacted by principal instructional leadership, which looks different than instruction in urban schools. Findings support the use of interim assessment cycles to track classroom trends and determine appropriate interventions. Findings also affirm the instructional leadership challenges faced by principals in rural settings

Are we overusing IVF?

Peer reviewedPublisher PD