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In its Sixth Edition, this book has been updated and revised to incorporate new information on technology, economic, and political issues that have impacted the use of fluids to drill and complete oil and gas wells. With updated content on completion fluids and reservoir drilling fluids; health, safety and environment; drilling fluid systems and products; new fluid systems and additives from both chemical and engineering perspectives; wellbore stability, adding the new R&D on water-based muds; and equipment and procedures for evaluating drilling fluid performance in light of the advent of digital technology and better manufacturing techniques, this book has been thoroughly updated to meet the drilling and completion engineer's needs.

A bstract We continue the analysis of the geometry of generic Minkowski N = 1, D = 4 flux compactifications in M-theory using exceptional generalised geometry, including the calculation of the infinitesimal moduli spaces. The backgrounds can be classified into two classes: type-0 and type-3. For type-0, we review how the moduli arise from standard de Rham cohomology classes. We also argue that, under reasonable assumptions, there are no appropriate sources to support compact flux backgrounds for this class and so the only solutions are in fact G 2 geometries. For type-3 backgrounds, given a suitable ∂ ′ ∂ ¯ ′ -lemma, we show that the moduli can be calculated from a cohomology based on an involutive sub-bundle of the complexified tangent space. Using a simple spectral sequence we prove quite generally that the presence of flux can only reduce the number of moduli compared with the fluxless case. We then use the formalism to calculate the moduli of heterotic M-theory and show they match those of the dual Hull-Strominger system as expected.

\"During a recent day-time television talk show a young woman was informed that her husband had offered her best friend 500 dollars to have sex with him. Needless to say, the young woman (the wife) became very angry and she (along with the talk-show host and most of the audience present) viewed this act as an egregious betrayal\"-- Provided by publisher.

Carbon dioxide (CO2) injection into geologic formations has gained global traction, including in South Africa, to mitigate anthropogenic emissions through carbon capture, utilisation, and storage technology. These technological and technical developments require a comprehensive and reliable study of CO2 sorption equilibria under in situ unmineable coal reservoir conditions. This paper presents novel findings on the study of the equilibrium adsorption of CO2 on two South African coals measured at four temperatures between 30 and 60 °C and pressures up to 9.0 MPa using the volumetric technique. Additionally, the sorption mechanism and thermodynamic nature of the process were studied by fitting the experimental data into Langmuir–Freundlich (Sips), Tóth, and Dubinin–Astakhov (DA) isotherm models, and the Clausius–Clapeyron equation. The findings indicate that the sorption process is highly exothermic, as presented by a negative temperature effect, with the maximum working capacity estimated to range between 3.46 and 4.16 mmol/g, which is also rank- and maceral composition-dependent, with high-rank vitrinite-rich coal yielding more sorption capacity than low-rank inertinite-rich coal. The experimental data fit well in Sips and Tóth models, confirming their applicability in describing the CO2 sorption behaviour of the coals under the considered conditions. The isosteric heat of adsorption varied from 7.518 to 37.408 kJ/mol for adsorbate loading ranging from 0.4 to 3.6 mmol/g. Overall, the coals studied demonstrate well-developed sorption properties that characteristically make them viable candidates for CO2 sequestration applications for environmental sustainability.

One of the enduring aims of archaeological research has been to explain why human material culture is so diverse, both across the world and through history. Recognising that diversity exists is not, however, to explain it nor to measure it effectively. This book examines what we mean by diversity.

The planarian Schmidtea mediterranea is an important model for stem cell research and regeneration, but adequate genome resources for this species have been lacking. Here we report a highly contiguous genome assembly of S. mediterranea , using long-read sequencing and a de novo assembler (MARVEL) enhanced for low-complexity reads. The S. mediterranea genome is highly polymorphic and repetitive, and harbours a novel class of giant retroelements. Furthermore, the genome assembly lacks a number of highly conserved genes, including critical components of the mitotic spindle assembly checkpoint, but planarians maintain checkpoint function. Our genome assembly provides a key model system resource that will be useful for studying regeneration and the evolutionary plasticity of core cell biological mechanisms. An improved genome assembly for Schmidtea mediterranea shows that the genome is highly polymorphic and repetitive, and lacks multiple genes encoding core components of cell biological mechanisms. Genome of a regenerating worm The flatworm Schmidtea mediterranea is an important model for regeneration. Jochen Rink, Eugene Myers and colleagues report an improved genome assembly for the planarian S. mediterranea using long-read sequencing and a new genome assembler called MARVEL. They find that the S. mediterranea genome is highly polymorphic and repetitive, and includes a novel class of giant retroelements. This improved genome assembly provides a useful resource for studying regeneration and the evolution of cell plasticity.

No punches are pulled in this fascinating biography that covers the life and work of the prolific artist George Bellows. Having spent most of his adult life in New York City, Bellows left behind an extraordinary body of work that captures life in this dynamic city: bustling street scenes, ringside views of boxing matches, and boys diving and swimming in the East River. Art reproductions and photographs from his youth round out the book.

Samuel A. Alito, Jr. was sworn into office as an Associate Justice of the Supreme Court of the United States on January 31, 2006. As we can say with the benefit of hindsight, that proved to be one of the most pivotal moments in the Supreme Court's modern history, with deep and lasting effects on our constitutional law and culture, as well as on the nation as a whole. Justice Alito filled the seat vacated by Sandra Day O'Connor. Over the course of her 25-year tenure, O'Connor had at times departed from the text and original public understanding of the Constitution in the service of evolving values or a professed concern for the Court's public standing. Most notably, on both grounds, O'Connor in 1992 joined Justices Anthony Kennedy and David Souter to uphold the abortion right fabricated in 1973 in Roe v. Wade.· 1Over his own more than 15 years on the Court, Alito has consistently honored our longstanding legal traditions and the text, logic, structure, and original understanding of the Constitution. This comes as no surprise; Alito had established himself on the Third Circuit as a judge \"both admired and assailed for his conservative judicial philosophy\"2 (as some today characterize a policy of respect for the Constitution's text and history). Once on the Supreme Court, Alito's judicial philosophy changed not a whit even in high-profile cases, where the pressure from intellectuals, journalists, and other cultural elites hits its peak. Instead, Alito's opinions-whether for the majority or in concurrence or dissent - have promoted the rule of law by honoring the text, logic, structure, and historical understanding of the Constitution as a whole and of its specific provisions. And if Casey captures much about his predecessor's approach, the best distillation of Alito's own tenure is and will surely remain his opinion for the Court overturning Casey and Roe in Dobbs v. Jackson Women's Health Organization.3 That opinion showcased his acumen and precision, his fidelity to the Founding, and his courage under enormous pressure-the unprecedented leak of a draft opinion, death threats, offensive and often intimidating protests at the Justices' homes, and an assassination plot against one of them.Now more than ever, that jurisprudence and judicial temperament deserve a closer look. So, it is my especially great honor to introduce this collection of Essays offering the most sustained and systematic analysis of Justice Alito's work over 30 years on the bench and 16 terms on the Supreme Court. In each Essay to follow, a prominent legal scholar or leading jurist analyzes Alito's general approach to law or his thought on substantive areas ranging from criminal law and federal courts to constitutional and statutory interpretation.4While the focus of this collection is Justice Alito's jurisprudence, certain vignettes from his personal life supply important context. Alito has a penchant for focusing on the practical and particular in each decision, so it is no surprise that, as Adam White recounts, the young Alito first encountered a lofty legal ideal-the Supreme Court's \"one person, one vote\" mandate-through his father's work to implement it on the ground by drawing new district lines for New Jersey.5 The senior Alito had been raised by poor ItalianAmerican immigrant parents, attended college through the kindness of a benefactor, fought for his country in World War II, and then served a non-partisan role in the New Jersey Legislature. The image of his son hearing Mr. Alito's mechanical adding machine clank away late into the night is a portrait of the quiet personal and professional virtues that Alito, Jr., would carry into the rest of his life.