Korespondensi Artikel : Water Footprint of the Natural Coloured Batik-Making Process: A Study on a Batik Small Enterprise in Jarum Village, Klaten Regency, Indonesia

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00. Introduction

One of the most wonderful aspects of the job of university professor is that one’s occupation is based on an area of personal expertise that shapes one’s Being. So it is with Richard C. “Dick” Richards, who, amongst other areas of specialization, is a philosopher of love. Richard’s Being is one deeply entrenched in love. There is, of course, the romantic love he long shared with his recently passed wife Marty, but there is also the love of many, many students and colleagues, both in and beyond the department at California State Polytechnic University at Pomona, and undeniably his love for poetry, humor, and the philosophy to which he dedicated so many years. Most of all, though, is (as cliché as this sounds), his love of life. Few people so embody the virtues they discuss, living so vitally and thereby affecting the lives of so many who come in contact with them, even briefly, that this love is shared by so many. This volume is intended as a testament to that love given and now redirected back toward Richard C. Richards. [excerpt

Time-and-motion tool for the assessment of working time in tuberculosis laboratories: a multicentre study

SETTING: Implementation of novel diagnostic assays in tuberculosis (TB) laboratory diagnosis requires effective management of time and resources. OBJECTIVE: To further develop and assess at multiple centres a time-and-motion (T&M) tool as an objective means for recording the actual time spent on running laboratory assays. DESIGN: Multicentre prospective study conducted in six European Union (EU) reference TB laboratories. RESULTS: A total of 1060 specimens were tested using four laboratory assays. The number of specimens per batch varied from one to 60; a total of 64 recordings were performed. Theoretical hands-on times per specimen (TTPS) in h:min:s for Xpert® MTB/RIF, mycobacterial interspersed repetitive unit-variable number of tandem repeats genotyping, Ziehl-Neelsen staining and manual fluorescence microscopy were respectively 00:33:02 ± 00:12:32, 00:13:34 ± 00:03:11, 00:09:54 ± 00:00:53 and 00:06:23 ± 00:01:36. Variations between laboratories were predominantly linked to the time spent on reporting and administrative procedures. Processing specimens in batches could help save time in highly automated assays (e.g., line-probe) (TTPS 00:14:00 vs. 00:09:45 for batches comprising 7 and 31 specimens, respectively). CONCLUSIONS: The T&M tool can be considered a universal and objective methodology contributing to workload assessment in TB diagnostic laboratories. Comparison of workload between laboratories could help laboratory managers justify their resource and personnel needs for the implementation of novel, time-saving, cost-effective technologies, as well as identify areas for improvement

Total and Partial Sleep Deprivation in Clomipramine-Treated Endogenous Depressives

Improvement in depression after total sleep deprivation (TSD) is, as a rule, followed by relapse after subsequent ad libitum sleep. This study is addressed to the question of how nocturnal partial sleep following TSD affects this relapse. Thirty endogenously depressed patients participated in the study. During the night after TSD, subjects were allowed sleep during one of three periods, i.e., unlimited sleep (11:00 p.m.-8:00 a.m.), early partial sleep (11:00 p.m.-3:00 a.m.), or late partial sleep (4:00 a.m.-8:00 a.m.). The hypothesis that partial sleep deprivation on the night following TSD prevents relapse has to be rejected. Relapse was inversely related to a drop in minimum rectal temperature during the night with unlimited or partial sleep, compared with minimum rectal temperature on the previous night.

Nocturnal Flight Periodicity of the Caddisflies (Trichoptera) in Forest and Meadow Habitats of a First Order Michigan Stream

Using ultraviolet light traps, over 5000 caddisfly specimens were collected from a forest and a meadow habitat of Fairbanks Creek in northern Lower Michigan. Samples were collected every 15 minutes, interspersed with 15 minutes of no sampling, from sunset to sunrise during 5 nights from late June to mid-July 2014. Despite having fundamentally different caddisfly assemblages dominated by different species, mean specimen abundance and mean species richness in both habitats exhibited similar trends: peaking between 22:30 and 23:00, decreasing until 02:00 or 02:30, increasing again slightly during the later morning periods, and then decreasing to near zero by 06:00. On average, \u3e90% of species from the forest site were caught by 00:00 and 100% by 02:00, whereas meadow site richness didn’t reach 90% until 01:00 and 100% until 05:00. Species richness per night correlated strongly with dew point for both sites, reflecting consistently warm temperatures throughout the sampling period. Our results suggest that caddisfly flight is controlled by both innate behavior and environmental factors like temperature, and that sampling should continue late into the night to maximize capture, especially in open-canopied areas

Type-III and IV interacting Weyl points

3+1-dimensional Weyl fermions in interacting systems are described by effective quasi-relativistic Green's functions parametrized by a 16 element matrix $e^\mu_\alpha$ in an expansion around the Weyl point. The matrix $e^{\mu}_{\alpha}$ can be naturally identified as an effective tetrad field for the fermions. The correspondence between the tetrad field and an effective quasi-relativistic metric $g_{\mu\nu}$ governing the Weyl fermions allows for the possibility to simulate different classes of metric fields emerging in general relativity in interacting Weyl semimetals. According to this correspondence, there can be four types of Weyl fermions, depending on the signs of the components $g^{00}$ and $g_{00}$ of the effective metric. In addition to the conventional type-I fermions with a tilted Weyl cone and type-II fermions with an overtilted Weyl cone for $g^{00}>0$ and respectively $g_{00}>0$ or $g_{00}<0$, we find additional "type-III" and "type-IV" Weyl fermions with instabilities (complex frequencies) for $g^{00}0$ or $g_{00}<0$, respectively. While the type-I and type-II Weyl points allow us to simulate the black hole event horizon at an interface where $g^{00}$ changes sign, the type-III Weyl point leads to effective spacetimes with closed timelike curves.Comment: 7 pages; journal versio

Johann Strauss Die Fledermaus, April 9-12, 1988

This is the concert program of the Boston University Opera Theatre performance of Die Fledermaus by Johann Strauss, Jr. with text by K. Haffner and Richard Genée, running Saturday April 9, 1988 at 8:00 p.m., Sunday, April 10, 1988 at 3:00 p.m., Monday, April 11, 1988 at 8:00 p.m., and Tuesday, April 12, 1988 8:00 p.m., at the Boston University Theatre, 264 Huntington Avenue. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

On the Security of Y-00 under Fast Correlation and Other Attacks on the Key

The potential weakness of the Y-00 direct encryption protocol when the encryption box ENC in Y-00 is not chosen properly is demonstrated in a fast correlation attack by S. Donnet et al in Phys. Lett. A 35, 6 (2006) 406-410. In this paper, we show how this weakness can be eliminated with a proper design of ENC. In particular, we present a Y-00 configuration that is more secure than AES under known-plaintext attack. It is also shown that under any ciphertext-only attack, full information-theoretic security on the Y-00 seed key is obtained for any ENC when proper deliberate signal randomization is employed