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The silence of our friends
This semi-autobiographical tale is set in 1967. A white family from a notoriously racist neighborhood in the suburbs and a black family from its poorest ward cross Houston's color line, overcoming humiliation, degradation, and violence to win the freedom of five black college students unjustly charged with the murder of a policeman.
Book
The Fifth Phase
The connected world offers the potential for radical new business insights gleaned from previously unimaginable volumes of data. But business has got bogged down in the process of collecting and storing that data; money has been wasted on data lakes in which many IT departments have drowned without being able to deliver useful insights to business leaders. Big data has new and exciting answers to offer, but business leaders must first decide what questions it would like to see answered. Data may be the new oil, but to date we have only built oil depots. This book analyses the new, Fourth Wave of business transformation, which will build the refineries that turn data into useful products. Business has started from 'data up' and needs to start again from 'value down', going back to the drivers of real business value and deciding what insights would help realize that value. Only then can we begin to interrogate data with purpose.
eBook
Wind and waves in extreme hurricanes
Waves breaking at the ocean surface are important to the dynamical, chemical and biological processes at the air‐sea interface. The traditional view is that the white capping and aero‐dynamical surface roughness increase with wind speed up to a limiting value. This view is fundamental to hurricane forecasting and climate research but it has never been verified at extreme winds. Here we show with observations that at high wind speeds white caps remain constant and at still higher wind speeds are joined, and increasingly dominated, by streaks of foam and spray. At surface wind speeds of ∼40 m/s the streaks merge into a white out, the roughness begins to decrease and a high‐velocity surface jet begins to develop. The roughness reduces to virtually zero by ∼80 m/s wind speed, rendering the surface aero‐dynamically extremely smooth in the most intense part of extreme (or major) hurricanes (wind speed > 50 m/s). A preliminary assessment shows that cross swell, dominant in large regions of hurricanes, allows the roughness under high wind conditions to increase considerably before it reduces to the same low values. Key Points In extreme hurricanes, the ocean surface is aero‐dynamically smooth The smoothness is due to a foam‐spray surface layer created by breaking waves Hurricane, wave and storm surge models need to account for this
Journal Article
Venture of the infinite man
\"Neruda's long-overlooked third book of poetry, critical in his poetic evolution, now translated into English for the very first time! Over twenty books by Pablo Neruda, the legendary Chilean poet and Nobel Laureate, have been translated into English, a testament to his enormous appeal. Yet, the work Neruda pointed to as \"one of the most important books of my poetry,\" has been woefully neglected and remains virtually unknown. Venture of the Infinite Man was Neruda's third book, published in 1926, two years after his widely celebrated and still much beloved Twenty Love Poems. In a stark stylistic departure from the love poems, Neruda discarded rhyme, meter, punctuation and capitalization in an attempt to better capture the voice of the subconscious. In an epic poem comprised of fifteen cantos spread over 44 un-numbered pages, the Infinite Man sets forth on a virtual sleepwalk through time and space, on a quest to atone for his past and to rediscover himself. Neruda's readers were not prepared for this experiment, and Venture did not garner the reception Neruda had hoped for. Indeed, decades after its publication, he lamented that it remained \"the least read and least studied of all my work.\" Venture is a strikingly clear example of a poet's creative and intellectual development, bridging the aching, plain lyricism of Love Poems, and the unique hermeticism of Neruda's next book, the landmark Residence on Earth. Neruda considered Venture essential to his evolution: \"Within its smallness and minimal expression, more than most of my works, it claimed, it secured, the path that I had to follow.\" Its long-overdue translation into English is cause for celebration!\"-- Provided by publisher.
Book
Development of anaesthetic protocols for lumpfish (Cyclopterus lumpus L.): Effect of anaesthetic concentrations, sea water temperature and body weight
In recent years, use of lumpfish (Cyclopterus lumpus L.) as cleaner-fish to remove sea-lice have been chosen by many salmon farmers in Europe and Canada as an alternative to medical treatment, which has led to large scale production of lumpfish. At present, there is limited knowledge of how lumpfish respond upon anaesthesia, which anaesthetics and concentrations that are efficient and conditions for euthanasia. We have therefore tested and developed protocols for bath immersion for three commonly used anaesthetics metacaine (Finquel, buffered tricaine methanesulfonate, MS-222 and Tricaine Pharmaq), benzocaine (Benzoak vet) and isoeugenol (Aqui-S), determined concentration for normal and fast anaesthesia and evaluated safety margin for each condition. Also, a behavioral matrix has been developed. We have examined the effect of fish size (10–20 g, 200–400 g and 600–1300 g) and sea water temperature (6°C and 12°C). We found that 200 mg L-1 metacaine is an efficient dose for deep narcosis independently for fish size and temperature due to good safety margins with regards to both exposure times and doses. However, for many tasks lighter anaesthesia is sufficient, and then 100 mg L-1 metacaine can be used. Benzocaine is less efficient than metacaine, but can be used as anaesthetic of fish < 400 g. The optimal doses of benzocaine were 100–200 mg L-1 for small fish (10–20 g) and 200 mg L-1 for medium sized fish (200–400 g). For larger fish (> 600 g), benzocaine is not suitable. Isoeugenol cannot be recommended for full anesthesia of lumpfish. The conditions for lethal doses varied with chosen anaesthetic, fish size and temperature. For small fish (10–20 g), exposure to 1600 mgL-1 of metacaine in 10 minutes it lethal. Guided protocols for non-lethal anaesthesia will contribute to ensure safe treatment of lumpfish according to an ethical standard for good fish welfare.
Journal Article
What Is Gill Health and What Is Its Role in Marine Finfish Aquaculture in the Face of a Changing Climate?
It is hard to find a definition of gill health in the literature although there is a lot of information on changes to gill structure as a result of infectious and non-infectious challenge. How these changes relate to overall fish health is sometimes not clear. Interaction between the gill, the fish, and a range of anticipated changes in the environment will have a currently unknown effect on marine health and aquaculture production. To a degree, fish will likely be able to ameliorate certain changes, such as compensating for slightly elevated carbon dioxide; however, these actions may come at the cost of compromising other functions such as osmoregulation. Compensation will also depend on gill epithelial health and other environmental factors like external nitrogen and ammonia sources which can rise depending on the direction future culture and levels of eutrophication take. Fish can also remodel gill structure in response to salinity, hypoxia, or acidification but it appears that increased temperatures may be associated with increased pathology observable in the gill, and certain fishes may be more susceptible to change. There is a need for more targeted research into climate change-specific gill physiology and a need to recognise gill health as being a key component of food security and not just fish health.
Journal Article
A Hurricane Boundary Layer and Wind Field Model for Use in Engineering Applications
This article examines the radial dependence of the height of the maximum wind speed in a hurricane, which is found to lower with increasing inertial stability (which in turn depends on increasing wind speed and decreasing radius) near the eyewall. The leveling off, or limiting value, of the marine drag coefficient in high winds is also examined. The drag coefficient, given similar wind speeds, is smaller for smaller-radii storms; enhanced sea spray by short or breaking waves is speculated as a cause. A fitting technique of dropsonde wind profiles is used to model the shape of the vertical profile of mean horizontal wind speeds in the hurricane boundary layer, using only the magnitude and radius of the “gradient” wind. The method slightly underestimates the surface winds in small but intense storms, but errors are less than 5% near the surface. The fit is then applied to a slab layer hurricane wind field model, and combined with a boundary layer transition model to estimate surface winds over both marine and land surfaces.
Journal Article
TROPICAL CYCLONE DESTRUCTIVE POTENTIAL BY INTEGRATED KINETIC ENERGY
Tropical cyclone damage potential, as currently defined by the Saffir–Simpson scale and the maximum sustained surface wind speed in the storm, fails to consider the area impact of winds likely to force surge and waves or cause particular levels of damage. Integrated kinetic energy represents a framework that captures the physical process of ocean surface stress forcing waves and surge while also taking into account structural wind loading and the spatial coverage of the wind. Integrated kinetic energy was computed from gridded, objectively analyzed surface wind fields of 23 hurricanes representing large and small storms. A wind destructive potential rating was constructed by weighting wind speed threshold contributions to the integrated kinetic energy, based on observed damage in Hurricanes Andrew, Hugo, and Opal. A combined storm surge and wave destructive potential rating was assigned according to the integrated kinetic energy contributed by winds greater than tropical storm force. The ratings are based on the familiar 1–5 range, with continuous fits to allow for storms as weak as 0.1 or as strong as 5.99.
Journal Article