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text:
Q: Why is wireless power transfer done between two coils at their self-resonant frequency? I was reading this paper about wireless power transfer via strongly coupled magnetic resonance:
http://www.ijirem.org/DOC/1_Wireless%20Power%20Transfer%20via%20Strongly%20Coupled%20Magnetic7a7f01ee-bd3f-43bc-a14d-3309f1040291.pdf
I understand that power is transferred more efficiently between two coils - the transmitter and receiver coils - when they are at resonance, i.e., when they have the same frequency. I am fine with this.
But then the report mentions that the two coils operate at the self-resonance frequency, which is when the inductive component of a coil is equal to its stray capacitance. Doesn't this mean that the inductive and capacitive components of the transmitter coil cancel out each other, and no magnetic field is produced by the transmitter coil?

A:
at self-resonance there is a very high impedance, so shouldn't the
  coil behave like an open circuit?

For a parallel tuned resonance: -
The current into the inductor at resonance is exactly opposite in sign but equal in magnitude to the current into the capacitor hence those currents add to become perfectly zero in the feed wire to the tuned circuit.
However there is still an excitation voltage attached to the tuned circuit and there is still an inductor attached to that excitation voltage hence there is still inductor and capacitor current.
Probably what confuses you is that how can you make "some" current from "zero" current. Well it doesn't begin that way, when you first apply a resonating sine wave to a parallel tuned circuit you don't instantly get infinite impedance - you have to get energy flowing into the two reactive components and this takes time so what you have is energy taken from the supply.
Once the energy delivered to the reactive components is done, those two perfect components can sit there swishing their voltage and currents back and forth to each other even if the sine wave is removed (just like setting a pendulum in motion by pushing it).
So, a magnetic field is produced by the coil and if this induces eddy currents into a local piece of metal then energy is removed and the sine wave has to restore the energy. If this magnetic field couples energy to another coil then energy is removed and this will be restored by the drving sine wave hence power transfer.

A: Please see the ideal transformer equivalent circuit.

simulate this circuit – Schematic created using CircuitLab
There are no losses, our ideal transformer is only inductances. As the stray inductances do nothing but store energy in the magnetic field of the free space, we want to have them small – we do this by tight magnetic coupling and only small air gaps.
So the main inductance is all we have to talk about. We want its reactance being huge. Why? Because it's a short across our load! The power source have to supply all the current through the load, that's our "payed load", but it also has to supply all the magnetization current through the main inductance, an "unnecessary" current our supply has to be built for. It's a purely reactive current so energy is not lost, but the supply has to be bigger than necessary if the reactance of the main inductivity is low.
If you consider a standard 50/60Hz transformer, the main reactance is made huge by putting a lot of windings on an iron core. We cannot do that if we had a huge air gap. Our main inductance is not much higher than the stray inductances. So we have to increase the frequency. But this has a downfall, capacitances become important:

simulate this circuit
If we had to optimize this, it easy to see we cannot just increase the frequency. Because we also had to supply the reactive current through the main capacitance, and the size of our source is what we want to minimize. So the solution is to drive the transformer at the resonant frequency of its main inductance/capacitance.
(The main capacitance in other terms is also a stray capacitance, of course.)

A: I think you are talking about rotary transformers which normally run at 10 KHZ. They last longer than slip-rings but cannot transfer 100's of amps to a gun turret in a tank.
Then there are proximity transformers which vary a lot in design and range. Your cell-phone dock in your car or at home uses a frequency compatible with coils that may not be perfectly aligned. Charging is slow this way.
I do not understand your notion of self-resonance. The coils transmitting the power and the coils receiving the power are wound to match the frequencies used. You could call it a 'tuned' circuit, but to imply precise resonance under all conditions is not possible. If it is 90% efficient that usually is good enough.
The only self-resonant circuit I know of is called a tank circuit, usually a capacitor in parallel with an inductor. At some ideal frequency they resonate, and that was the beginning of AM radio.
There are many variations of RCL resonate circuits. Search Google with 'RCL' and you will get plenty to read.

redpajama_set_name: RedPajamaStackExchange


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text:
package org.apache.commons.math3.stat.clustering;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Random;

import org.apache.commons.math3.exception.NumberIsTooSmallException;
import org.junit.Assert;
import org.junit.Test;

@Deprecated
public class KMeansPlusPlusClustererTest {

    @Test
    public void dimension2() {
        KMeansPlusPlusClusterer<EuclideanIntegerPoint> transformer =
            new KMeansPlusPlusClusterer<EuclideanIntegerPoint>(new Random(1746432956321l));
        EuclideanIntegerPoint[] points = new EuclideanIntegerPoint[] {

                // first expected cluster
                new EuclideanIntegerPoint(new int[] { -15,  3 }),
                new EuclideanIntegerPoint(new int[] { -15,  4 }),
                new EuclideanIntegerPoint(new int[] { -15,  5 }),
                new EuclideanIntegerPoint(new int[] { -14,  3 }),
                new EuclideanIntegerPoint(new int[] { -14,  5 }),
                new EuclideanIntegerPoint(new int[] { -13,  3 }),
                new EuclideanIntegerPoint(new int[] { -13,  4 }),
                new EuclideanIntegerPoint(new int[] { -13,  5 }),

                // second expected cluster
                new EuclideanIntegerPoint(new int[] { -1,  0 }),
                new EuclideanIntegerPoint(new int[] { -1, -1 }),
                new EuclideanIntegerPoint(new int[] {  0, -1 }),
                new EuclideanIntegerPoint(new int[] {  1, -1 }),
                new EuclideanIntegerPoint(new int[] {  1, -2 }),

                // third expected cluster
                new EuclideanIntegerPoint(new int[] { 13,  3 }),
                new EuclideanIntegerPoint(new int[] { 13,  4 }),
                new EuclideanIntegerPoint(new int[] { 14,  4 }),
                new EuclideanIntegerPoint(new int[] { 14,  7 }),
                new EuclideanIntegerPoint(new int[] { 16,  5 }),
                new EuclideanIntegerPoint(new int[] { 16,  6 }),
                new EuclideanIntegerPoint(new int[] { 17,  4 }),
                new EuclideanIntegerPoint(new int[] { 17,  7 })

        };
        List<Cluster<EuclideanIntegerPoint>> clusters =
            transformer.cluster(Arrays.asList(points), 3, 5, 10);

        Assert.assertEquals(3, clusters.size());
        boolean cluster1Found = false;
        boolean cluster2Found = false;
        boolean cluster3Found = false;
        for (Cluster<EuclideanIntegerPoint> cluster : clusters) {
            int[] center = cluster.getCenter().getPoint();
            if (center[0] < 0) {
                cluster1Found = true;
                Assert.assertEquals(8, cluster.getPoints().size());
                Assert.assertEquals(-14, center[0]);
                Assert.assertEquals( 4, center[1]);
            } else if (center[1] < 0) {
                cluster2Found = true;
                Assert.assertEquals(5, cluster.getPoints().size());
                Assert.assertEquals( 0, center[0]);
                Assert.assertEquals(-1, center[1]);
            } else {
                cluster3Found = true;
                Assert.assertEquals(8, cluster.getPoints().size());
                Assert.assertEquals(15, center[0]);
                Assert.assertEquals(5, center[1]);
            }
        }
        Assert.assertTrue(cluster1Found);
        Assert.assertTrue(cluster2Found);
        Assert.assertTrue(cluster3Found);

    }

    /**
     * JIRA: MATH-305
     *
     * Two points, one cluster, one iteration
     */
    @Test
    public void testPerformClusterAnalysisDegenerate() {
        KMeansPlusPlusClusterer<EuclideanIntegerPoint> transformer = new KMeansPlusPlusClusterer<EuclideanIntegerPoint>(
                new Random(1746432956321l));
        EuclideanIntegerPoint[] points = new EuclideanIntegerPoint[] {
                new EuclideanIntegerPoint(new int[] { 1959, 325100 }),
                new EuclideanIntegerPoint(new int[] { 1960, 373200 }), };
        List<Cluster<EuclideanIntegerPoint>> clusters = transformer.cluster(Arrays.asList(points), 1, 1);
        Assert.assertEquals(1, clusters.size());
        Assert.assertEquals(2, (clusters.get(0).getPoints().size()));
        EuclideanIntegerPoint pt1 = new EuclideanIntegerPoint(new int[] { 1959, 325100 });
        EuclideanIntegerPoint pt2 = new EuclideanIntegerPoint(new int[] { 1960, 373200 });
        Assert.assertTrue(clusters.get(0).getPoints().contains(pt1));
        Assert.assertTrue(clusters.get(0).getPoints().contains(pt2));

    }

    @Test
    public void testCertainSpace() {
        KMeansPlusPlusClusterer.EmptyClusterStrategy[] strategies = {
            KMeansPlusPlusClusterer.EmptyClusterStrategy.LARGEST_VARIANCE,
            KMeansPlusPlusClusterer.EmptyClusterStrategy.LARGEST_POINTS_NUMBER,
            KMeansPlusPlusClusterer.EmptyClusterStrategy.FARTHEST_POINT
        };
        for (KMeansPlusPlusClusterer.EmptyClusterStrategy strategy : strategies) {
            KMeansPlusPlusClusterer<EuclideanIntegerPoint> transformer =
                new KMeansPlusPlusClusterer<EuclideanIntegerPoint>(new Random(1746432956321l), strategy);
            int numberOfVariables = 27;
            // initialise testvalues
            int position1 = 1;
            int position2 = position1 + numberOfVariables;
            int position3 = position2 + numberOfVariables;
            int position4 = position3 + numberOfVariables;
            // testvalues will be multiplied
            int multiplier = 1000000;

            EuclideanIntegerPoint[] breakingPoints = new EuclideanIntegerPoint[numberOfVariables];
            // define the space which will break the cluster algorithm
            for (int i = 0; i < numberOfVariables; i++) {
                int points[] = { position1, position2, position3, position4 };
                // multiply the values
                for (int j = 0; j < points.length; j++) {
                    points[j] *= multiplier;
                }
                EuclideanIntegerPoint euclideanIntegerPoint = new EuclideanIntegerPoint(points);
                breakingPoints[i] = euclideanIntegerPoint;
                position1 += numberOfVariables;
                position2 += numberOfVariables;
                position3 += numberOfVariables;
                position4 += numberOfVariables;
            }

            for (int n = 2; n < 27; ++n) {
                List<Cluster<EuclideanIntegerPoint>> clusters =
                    transformer.cluster(Arrays.asList(breakingPoints), n, 100);
                Assert.assertEquals(n, clusters.size());
                int sum = 0;
                for (Cluster<EuclideanIntegerPoint> cluster : clusters) {
                    sum += cluster.getPoints().size();
                }
                Assert.assertEquals(numberOfVariables, sum);
            }
        }

    }

    /**
     * A helper class for testSmallDistances(). This class is similar to EuclideanIntegerPoint, but
     * it defines a different distanceFrom() method that tends to return distances less than 1.
     */
    private class CloseIntegerPoint implements Clusterable<CloseIntegerPoint> {
        public CloseIntegerPoint(EuclideanIntegerPoint point) {
            euclideanPoint = point;
        }

        public double distanceFrom(CloseIntegerPoint p) {
            return euclideanPoint.distanceFrom(p.euclideanPoint) * 0.001;
        }

        public CloseIntegerPoint centroidOf(Collection<CloseIntegerPoint> p) {
            Collection<EuclideanIntegerPoint> euclideanPoints =
                new ArrayList<EuclideanIntegerPoint>();
            for (CloseIntegerPoint point : p) {
                euclideanPoints.add(point.euclideanPoint);
            }
            return new CloseIntegerPoint(euclideanPoint.centroidOf(euclideanPoints));
        }

        @Override
        public boolean equals(Object o) {
            if (!(o instanceof CloseIntegerPoint)) {
                return false;
            }
            CloseIntegerPoint p = (CloseIntegerPoint) o;

            return euclideanPoint.equals(p.euclideanPoint);
        }

        @Override
        public int hashCode() {
            return euclideanPoint.hashCode();
        }

        private EuclideanIntegerPoint euclideanPoint;
    }

    /**
     * Test points that are very close together. See issue MATH-546.
     */
    @Test
    public void testSmallDistances() {
        // Create a bunch of CloseIntegerPoints. Most are identical, but one is different by a
        // small distance.
        int[] repeatedArray = { 0 };
        int[] uniqueArray = { 1 };
        CloseIntegerPoint repeatedPoint =
            new CloseIntegerPoint(new EuclideanIntegerPoint(repeatedArray));
        CloseIntegerPoint uniquePoint =
            new CloseIntegerPoint(new EuclideanIntegerPoint(uniqueArray));

        Collection<CloseIntegerPoint> points = new ArrayList<CloseIntegerPoint>();
        final int NUM_REPEATED_POINTS = 10 * 1000;
        for (int i = 0; i < NUM_REPEATED_POINTS; ++i) {
            points.add(repeatedPoint);
        }
        points.add(uniquePoint);

        // Ask a KMeansPlusPlusClusterer to run zero iterations (i.e., to simply choose initial
        // cluster centers).
        final long RANDOM_SEED = 0;
        final int NUM_CLUSTERS = 2;
        final int NUM_ITERATIONS = 0;
        KMeansPlusPlusClusterer<CloseIntegerPoint> clusterer =
            new KMeansPlusPlusClusterer<CloseIntegerPoint>(new Random(RANDOM_SEED));
        List<Cluster<CloseIntegerPoint>> clusters =
            clusterer.cluster(points, NUM_CLUSTERS, NUM_ITERATIONS);

        // Check that one of the chosen centers is the unique point.
        boolean uniquePointIsCenter = false;
        for (Cluster<CloseIntegerPoint> cluster : clusters) {
            if (cluster.getCenter().equals(uniquePoint)) {
                uniquePointIsCenter = true;
            }
        }
        Assert.assertTrue(uniquePointIsCenter);
    }

    /**
     * 2 variables cannot be clustered into 3 clusters. See issue MATH-436.
     */
    @Test(expected=NumberIsTooSmallException.class)
    public void testPerformClusterAnalysisToManyClusters() {
        KMeansPlusPlusClusterer<EuclideanIntegerPoint> transformer =
            new KMeansPlusPlusClusterer<EuclideanIntegerPoint>(
                    new Random(1746432956321l));

        EuclideanIntegerPoint[] points = new EuclideanIntegerPoint[] {
            new EuclideanIntegerPoint(new int[] {
                1959, 325100
            }), new EuclideanIntegerPoint(new int[] {
                1960, 373200
            })
        };

        transformer.cluster(Arrays.asList(points), 3, 1);

    }

}

redpajama_set_name: RedPajamaGithub


text:
Toei 6500 series
A Toei Mita Line 6500 series train
Kinki Sharyo
Replaced
Number under construction
56 cars (7 sets)
Number in service
0 (7 future)
8 cars per trainset
Operator(s)
Toei Subway
Line(s) served
I Toei Mita Line
MG Tokyu Meguro Line
4 per side
Traction system
SiC–VVVF
Electric system(s)
1,500 V DC overhead lines
Current collection method
Track gauge
1,067 mm (3 ft 6 in)
The Toei 6500 series (都営6500形, Toei-6500 gata) is an electric multiple unit (EMU) train type to be operated by the Tokyo Metropolitan Bureau of Transportation (Toei) in Japan.
The trains will utilize SiC-VVVF technology, and are formed as eight-car sets.[1] The interior includes passenger information displays and security cameras.[2]
The 6500 series was announced by Toei on October 29, 2020.[2] The first set was delivered in 2020.[3] Test runs are scheduled to start in November 2020. A total of 13 sets, 104 cars,[4] are to be built by Kinki Sharyo, with entry into revenue service planned for 2022[1] when stations' platforms on Mita Line and Meguro Line are extended to accommodate eight-car trainsets.
^ a b "Series 6500 train ready for testing on Toei's Mita Line". railwaygazette.com/metro-report. DVV Media International. November 2, 2020. Archived from the original on November 2, 2020. Retrieved November 2, 2020.
^ a b "東京都交通局、都営三田線に新型車両6500形 - 8両編成、13編成導入". news.mynavi.jp (in Japanese). Mynavi Corporation. October 29, 2020. Archived from the original on November 2, 2020. Retrieved November 2, 2020.
^ "都営三田線6500形第1編成が甲種輸送される". Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. November 1, 2020. Archived from the original on November 2, 2020. Retrieved November 2, 2020.
^ "都営三田線に新型「6500形」 初の8両編成で令和4年度営業投入 6300形を置き換え". tetsudo-ch.com (in Japanese). EXPRESS Co., Ltd. October 29, 2020. Archived from the original on November 2, 2020. Retrieved November 2, 2020.
Press release (in Japanese)
Tokyo Metropolitan Bureau of Transportation rolling stock
12-000 series
10-300R series
See also: Tokyo subway rolling stock
Electric multiple units of Japan
Japan rail transport stubs

redpajama_set_name: RedPajamaCommonCrawl


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Just as our warm weather and beautiful Pacific Ocean draw visitors from across the globe, these conditions also make the Hawaiian Islands a favorite destination for kohola, the Hawaiian word for humpback whales.
Each fall, North Pacific Humpback Whales leave their frigid home in the Gulf of Alaska to migrate for up to eight weeks for a warm, tropical winter home in the Hawaiian Islands. In fact, this annual round trip journey of some 6,000 miles is considered one of the longest made by any mammal. Between December and May (January and February are considered prime months), these gentle giants can be spotted frolicking offshore during rituals of mating, giving birth and nurturing calves.
While seasonal whale watching cruises are a favorite activity among visitors and even locals, you can also spot these marvels from lots of shoreline locations that are easily accessible and absolutely FREE!
Despite their size, humpback whales are graceful acrobats. By exercising patience (meaning keep your eyes on the horizon and resist checking your phone), you may witness the ultimate humpback action of breaching, an amazing feat where a whale propels its body out of the water and lands on its side with a spectacular splash.
The shallow Auau Channel between Maui, Molokai and Lanai is considered one of the best whale watching destinations in the world. The best visibility runs along Maui's west shore, from Kapalua on the northern end to Wailea on the southern end.
On Oahu, humpbacks are easier to spot on the north shore from Haleiwa to Kahuku and southeastern shore from Koko Head to Makapuu.
While Kauai offers a wide range of whale viewing opportunities, your best shot is along the southwest shore running from Waimea to Polihale State Park and along the North Shore to Hanalei and Kilauea. Whales are also often spotted off Poipu on the south shore and Kapaa on the east shore.
On the Island of Hawaii, whales are most often spotted from Kailua-Kona and up the western coast to Kapaau on the north shore with the most productive area being along the Kohala Coast. If you're on the eastern shore, check Hilo Bay.
An explosive exhale through a whale's blowhole as it rises to the surface. The spout can reach as high as 20 feet. This is first thing to look for when trying to locate a pod of whales, as it's typically the most frequent and easily spotted behavior. Humpback whales actually have two blowholes, one for each of its huge lungs. Adults will typically blow every 10 to 15 minutes, with calves blowing every 3 to 5 minutes.
Fins up if you love whales! Pectoral Slaps is the slapping of a whale's fin against the water's surface. Humpback whales like this one are protected by many of your national marine sanctuaries, including Hawaiian Islands Humpback Whale National Marine Sanctuary in Hawaii.
Maui's Great Whale Count brings volunteers together to count whales from shore as part of a long-term survey of humpback whales in Hawaii. There are 12 survey sites along the shoreline of Maui, offering a chance to spend time at a favorite spot or to explore a new part of the island. The event takes place during the annual Maui Whale Festival (MauiWhaleFestival.org). Upcoming dates for these Saturday events are Jan. 26, Feb. 23 and March 30.
Scheduled for the same dates, the Sanctuary Ocean Count provides a snapshot of humpback sightings from Oahu, Kauai and Hawaii Island shorelines as participants tally counts and document the whales' surface behavior. A similar effort is also done on Maui with the Pacific Whale Foundation. Check OceanCount.org for details.
Whether you're participating in a count or simply setting out for a shoreline spotting, check the daily weather report before heading out. Clear skies provide optimal conditions when trying to spot humpbacks from the shore.
Impress your friends by sharing 12 fascinating facts about these remarkable cetaceans.
1) These warm-blooded marine mammals actually evolved from land mammals 50 million years ago.
2) Males range from 40 to 52 feet and weigh up to 45 tons, with females slightly longer and heavier.
3) Like other mammals, humpbacks have hair! Thought to be a sensory function, stiff hairs come out of the top of tubercles, or large bumps on the lower jaw and head.
4) With eyes the size of grapefruits, humpbacks have excellent vision.
5) Humpbacks fast during their migration by living off fat they store during their feeding season.
6) A humpback's cruising speed is 3.5 to 5.7 mph, although they can ramp it up to 10 to 11.5 mph when being chased.
7) During mating season, males produce whale songs that consist of a series of repeating patterns that gradually change over time. No female has ever been heard or seen singing.
8) You can sometimes hear the whales singing under water when they're near. You just need to stay very still and listen closely while you're below the surface!
9) Females give birth every 2 to 3 years, with the gestation period lasting 11 to 12 months.
10) Born at 13 feet long and 1 ton in weight, calves drink nearly 600 gallons of milk per day.
11) On average, adults surface every 7 to 15 minutes to breathe, but can remain submerged for up to 45 minutes. Calves must rise to the surface every 3 to 5 minutes.
12) Humpbacks can live from 50 to 100 years of age.


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Q: Set builder notation problem What is the set builder notation for the following two:
a) The set of all binary strings of even length and ending with 1.
b) L* has exactly one more element than L.

I am totally puzzled by these two. Could someone show me the solution to these two problems. An explanation would be great to help me understand.

A: Here is one solution:
a) $\{ x \in \{0,1\}^* : \text{$x$ has even length and ends with $1$} \}$
b) $\{ L : \text{$L^*$ has one more element than $L$}\}$
There are many other solutions possible, for example:
a) $\{ x1 : x \in \{0,1\}^* \text{ and } 2 \mid |x1| \}$
b) $\{ L : |L|,|L^*| < \infty \text{ and } |L^*| = |L| + 1 \}$
Note that the condition in b) only holds for $L = \emptyset$; therefore another solution for b) would be $\{ \emptyset \}$.


Lack of time and the overwhelming feeling of stress often go hand in hand. Being able to manage both is critical when studying a topic for the first or fortieth time. Thankfully, there are proven tactics to help with time management. In our fast-paced, always-on-the-go world, finding time to study can be very difficult. Prioritizing and organizing are two key concepts to help manage time. When faced with multiple tasks, it is helpful to finish the most difficult ones first (which are usually the most time consuming) and then move onto the easier, quicker tasks. Being organized makes it easy to find study materials, and organization allows for a calmer, less chaotic environment which can help one be successful.
Scheduling and using your time wisely is very important. Schedule off blocks of time throughout the week devoted to studying. Make sure they are long enough to make progress, but not too long so the work becomes drudgery. Small chunks of time, even a few minutes, can be used to review material. For example, on the bus, walking to class, or even during commercials of a favorite television show can be used to study or review. Also, try to set some time aside after class to review material. This way, the material is fresh and any questions can be noted immediately to be asked at a future date.
Finally, it is helpful to have a 'hard copy' of important dates and assignments. Keep a to-do list of chores and assignments that need to be completed soon. Use a planner and a calendar to keep track of appointments, meetings, project due dates, etc. Knowing what is happening in the days and weeks ahead will allow you to plan your time more effectively.
Getting control of your schedule is one important way to ease the feeling of stress in your life. Stress can show up in a variety of ways. A change in eating or sleeping patterns, crying, feeling afraid or frustrated, and compulsively using drugs and/or alcohol to escape are all signs of stress. A counselor or a psychologist can help you deal with stress if you feel it is too overwhelming, or if it is adversely affecting your studies or other areas in your life.
There are a variety of ways to manage stress on your own as well. Setting realistic goals for yourself is a great place to start. Set high expectations for yourself, but realize you cannot do everything at one time. By prioritizing your life and your study goals, you can avoid overwhelming feelings that lead to stress. And try not to worry about the small things or things you have no control over.
Finally, it is extremely important to take care of yourself. Set aside time each day to relax. Eat well. Exercise. Get enough sleep. Try to stay positive. All of these will help you feel better and cut down on the amount of stress in your life.


MPP Global's new Commercial Director Kevin Cochrane has raised some great points about the effect Convergent Media is having on marketing a business or a brand.
The surge is Convergent Media means there are new and increasingly different ways for consumers to do business with companies.
This coupled with the rise in social media, means much of the way a business, a service or a product is marketed can be out of the direct control of the company itself.
That is why it is so important to have a cross-platform payment presence, not only to facilitate purchases but to help monitor, evaluate and shape marketing strategies to meet evolving consumer requirements.
Kevin is conducting an online webinar on this subject on the 14th December at 2.00pm. Make a note in your diary now!


Exciting News! ICW is planning a special LOVE POSITIVE WOMEN Advocacy Working Group Session featuring a presentation by Cecilia Chung on issues for trans women living with HIV on February, 11th, 2015. This session is open to all self identifying women living with HIV. All are welcome and encouraged to join!
If you live in Nairobi, Kenya you are encouraged to join the Global Staff in our office to join the call with the rest of the global members via skype and to have some baked goods. We encourage other groups to do the same in their own homes and/or offices.


"Our work confirms the detrimental effects of midlife hypertension for risk of dementia," said lead author Archana Singh-Manoux, Professor at the French National Institute of Health and Medical Research (INSERM) in Paris.
The reason for the increased risk of dementia includes the fact that high blood pressure is linked to silent or mini strokes (where symptoms often are not noticeable), damage to the white matter in the brain, which contains many of the brain's nerve fibres, and restricted blood supply to the brain.
This damage may underlie the resulting decline in the brain's processes, the researchers explained in the study of nearly 9,000 people, published in the European Heart Journal.
"Our analysis suggests that the importance of mid-life hypertension on brain health is due to the duration of exposure," the researcher said.
"So we see an increased risk for people with raised blood pressure at age 50, but not 60 or 70, because those with hypertension at age 50 are likely to be 'exposed' to this risk for longer," she added.
Another study reported in the journal Cardiovascular Research showed that higher risk of developing dementia in hypertensive patients occurs due to significant alterations in three specific white matter fibre-tracts linked to executive functions, processing speed, memory and related learning tasks -- brain areas associated with dementia.


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Town deal
Meet the Town Deal Board
About the town deal board members
On this page you can find out more about the Town Deal board members.
Co-chair: Carole Dixon (Hastings Community Network)
Having a background in education, Carole moved into the charity sector in January 2012 to establish and lead the Education Futures Trust. Her passion lies in improving the life chances of children and vulnerable adults in our town. Having lived and worked in Hastings for almost thirty years, she believes that education, in its broadest sense, provides the route out of poverty and into a hopeful future.
The charity has come a long way since its inception, and as its Chief Executive she has worked closely with other charities, the public and private sector to build local partnerships. Together we can have so much more impact in the town. Currently chairing the Hastings Community Network Executive Group, the Skills and Learning in the Community charity and the Local Strategic Partnership, while also being a member of the local Executive Delivery Group, CHART Local Action Group, Hastings Opportunity Area Board and East Sussex Skills Partnership. Any spare time she has is spent with family or their skittish 16.3hh horse.
Carole Dixon Declaration of interest.pdf
Co-chair: Graham Peters (SELEP/Team East Sussex)
After training as an engineer Graham changed direction becoming a property advisor, investor and developer. He has lived in East Sussex for nearly 30 years and has been involved in regeneration initially in the rural areas of East Sussex for over 20 years. He Chairs Team East Sussex charged with regenerating the County, is a a Vice Chairman of SELEP, a parish councillor, school governor and churchwarden, and is a Deputy Lieutenant of East Sussex. He is also a Trustee of the Sussex Heritage Trust, the Rural Rother Trust and a director of the Woodland Enterprise Centre. For fun he sings, welds, fishes and swims.
Graham Peters Declaration of interest.pdf
Jess Steele OBE (Trinity Triangle Heritage Action Zone)
Director of Jericho Road Solutions, with 25 years' experience of community-led regeneration. A founder trustee and now advisor to the Heart of Hastings Community Land Trust, lead partner for the HAZ, currently studying for a PhD in self-renovating neighbourhoods.
Jericho Road provides coaching to neighbourhood groups and community businesses across England while working with government, funders, corporations and academics on national initiatives to make community-led change easier. It invests profits directly into people and projects in Hastings, including one-third ownership of the social developer White Rock Neighbourhood Ventures, owners of Rock House and the Observer Building.
Jess Steele Declaration of interest.pdf
Liz Coleman (Hastings and Rother Interfaith Forum)
Hastings and Rother Interfaith forum's mission is to promote community cohesion through dialogue, co-operation and festivities between people with faith in a God and those who do not, enabling them to embrace difference. Joining the Town Deal Board will enable me to promote this vision of community cohesion while also promoting an economy that will be of benefit to all.
Liz Coleman Declaration of interest.pdf
Catherine Parr and John Bownas (Love Hastings Ltd - Hastings Business Improvement District - BID)
To represent the interests of the town centre businesses.
Catherine Parr Declaration of interest.pdf
John Bownas Declaration of interest.pdf
Cllr Paul Barnett (Hastings Borough Council)
Leader of Hastings Borough Council.
Cllr Paul Barnett Declaration of interest
Cllr Maya Evans (Hastings Borough Council)
Deputy Leader of Hastings Borough Council and portfolio holder for Housing and Community Development.
Cllr Maya Evans Declaration of Interest
Jane Hartnell (Hastings Borough Council)
Hastings Borough Council's Managing Director. Responsible for Financial Services, People and Business Support, Legal services, Accommodation and Transformation, IT, Policy, Continuous Performance and Democratic Services.
Jane Hartnell Declaration of interest.pdf
James Harris (East Sussex Council)
Assistant Director of Economy for East Sussex County Council, responsible for the economic development of the county and promoting public and private investment.
James Harris Declaration of interest.pdf
Sally-Ann Hart (MP for Hastings and Rye)
Member of Parliament (MP) for Hastings and Rye since 2019.
Sally-Ann Hart Declaration of interest.pdf
Justin Thomas (NewRiver REIT)
Justin has over 25 years of property management and development experience, having qualified as a Chartered Surveyor in 1994 with Savills, then subsequently moving to Cluttons land management and valuation team.
In 1999 Justin joined specialist residential developer Pathfinder Properties PLC and in 2004 established Maxam Property Ltd, a private residential developer and consultancy company. The company has also carried out hotel development, strategic land planning and development consultancy to the renewable energy and zero carbon housing sector.
Justin was a member of the RICS Board of UK Education Standards for over 10 years, he is currently a member of the BPF Development Committee and also Chairs the Grays Towns Fund Board.
Justin Thomas Declaration of interest.pdf
Andrew Harvey (NewRiver Reit)
Priory Meadow Shopping Centre Manager.
Andrew Harvey Declaration of interest.pdf
Steve Manwaring (Hastings Voluntary Action)
Director of Hastings Voluntary Action, working to enhance the quality of life of people in the Hastings area by promoting the principle and practice of voluntary action by individuals and organised groups, and by supporting the development of local initiatives to meet community needs.
Steve Manwaring Declaration of interest.pdf
Rich Moore (Source Park)
Co-founder of The Source Park, leading online BMX retailer worldwide and operator of The Source BMX Park, the largest underground BMX park in the world.
Rich Moore Declaration of interest.pdf
Lourdes Madigasekera-Elliott (Public Health ESCC)
Public Health Strategic Lead for Creating Healthy Places with responsibility for getting health into place and focusing on the built and natural environment.
Lourdes Madigasekera-Elliott Declaration of interest.pdf
Terry Hume (Public Health ESCC)
Programme Manager - Community Resilience.
Terry Hume Declaration of interest.pdf
Matt Chetwynd (NHS Hastings And Rother Clinical Commissioning Group)
Director of Estates and Facilities - NHS East Sussex and Brighton.
Matt Chetwynd Declaration of interest (to be uploaded)
Liz Gilmore (Cultural Leaders Group)
Chair of the Hastings and Rother Cultural Leaders group, working to support the cultural vibrancy of the area and championing the cultural sector regionally. Director of Hastings Contemporary Art Gallery, an independent gallery exploring all forms of contemporary and modern art.
Liz Gilmore Declaration of interest.pdf
Kate Adams (Cultural Leaders Group)
Member of the Hastings and Rother and East Sussex Cultural Leaders Groups working to support the cultural vibrancy of the area and championing the cultural sector regionally. Visual artist, co-founder and director of Project Art Works, a Hastings-based arts organisation that collaborates with neurodiverse artists and makers, galleries, social care agencies, psychologists, families and caregivers.
Kate Adams Declaration of interest.pdf
Clive Galbraith (Chamber of Commerce)
Chair for Hastings' Chamber of Commerce, leading voice of business for Hastings working on behalf of their members, to grow the economy of the town and the wider region in order to create a more supportive environment for businesses to operate in - irrespective of their size, sector or age achieving this in the following ways.
Clive Galbraith Declaration of interest.pdf
Sean Dennis (Chamber of Commerce)
Sean has worked in business and finance for over 35 years, the past 20 years based in Hastings and is Hastings Area Chamber of Commerce Director. Leading on meeting and event content, as well as the development and growth of the Chamber, to ensure the voice of the Chamber and its members is heard.
He is the director of Let's Do Business Group and is extremely proud to have been an instrumental part of the team that has seen us grow a grant dependent Hastings and Rother focused social enterprise to a leading and sustainable business support organisation covering the South East of England.
Leading on the finance and funding side of the business which supports start-ups and established SME's access the funding they need to start, grow and prosper; which also takes our activities into London and the East of England.
Education is another area of interest, so he also sits on the Hastings Local College Board for the East Sussex College Group.
Sean Dennis Declaration of interest.pdf
Sonia Blizzard (SeaChange)
Sea Change Sussex is a not-for-profit economic development company working to expand the area's economy and generate jobs by attracting successful employers and enabling local firms to grow. Their focus is on developing a portfolio of prestigious commercial property - offices, business parks and sites for businesses from small firms to big corporations, with many premises available on highly flexible terms.
Sonia Blizzard Declaration of interest.pdf
Dan Shelley (East Sussex Colleges Group)
An Executive Director of East Sussex College Group (ESCG), which includes Hastings campuses at Station Plaza, Ore Valley and a motor vehicle training centre on the Ponswood Industrial Estate. ESCG provides a wide range of programmes in the town, from entry to degree level study, linking the offer to local employment and regeneration priorities.
Dan has worked in Hastings since 2012 and leads on external partnerships and has Group leadership responsibilities for Apprenticeships, Higher Education, International education, marketing, student services, data and business planning.
Dan Shelley Declaration of interest.pdf
Helen Kay (Hastings Opportunity Area)
Programme Director for Hastings Opportunity Area, one of 20 across the county committed to improving the social mobility and life chances of children and young people. Hastings Opportunity Area programme works across key areas for improvements, and collaborates with local businesses, schools, nurseries and colleges to give every young person the chance to go as far as their talents and hard work will take them.
Helen Kay Declaration of interest.pdf
Dawn Dublin (Un-Veiled)
Director of Un-Veiled, initiatives include community engagement, enterprise, training, support, community wealth building, knowledge and skills sharing and community cohesion.
Dawn Dublin Declaration of interest.pdf
Francis Lucien Brown (Hastings Youth Council)
Francis has been an active member of the Hastings Youth Council for over 3 years, and was recently elected co-chair. Whilst studying humanities, he has developed a strong belief in affirmative action and is passionate about representing the views of local young people, whose voices often go unheard. Also, he works as a Peer Coach for his college, creating online content and helping students with their progression to higher education. He's looking forward to studying human geography at university with a year spent learning abroad, and aspires to work at a strategic level in an international organisation like the UN.
Francis Lucien Brown Declaration of interest.pdf
Got a question about the town deal?
The content on this page is the responsibility of our Regeneration team.


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Whilst installing on air conditioning unit a subcontractor fell through a manhole which collapsed when he stepped on it.
The work carried out by the flooring subcontractor is "alleged" to be defective.
The cost of the claim to date is $751,000.
Can you afford to defend the allegations out of your own pocket?
A subcontractor was finishing off some balcony waterproofing in which a defect had been found just prior to handover.
To speed things up, the contractor decided to use a heat gun to dry the membrane. It caught fire and resulted in the entire house burning down. The cost to rebuild…$1,100,000.
A slab was poured for a new site and 9 months after handover, the owner complained to the builder that the ground was always damp and water was seeping into the garage.
An investigation found that the concreter had allowed concrete to enter the storm water drain at a junction point (in fill housing project) and the concrete had blocked the storm water drain.
$236,781 later, the problem has been fixed.
*Case studies are based on true and actual events.